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{
Copyright (c) International Business Machines Corp., 2000
Copyright (c) 2003 Yuri Prokushev
This module defines the interface to LVM.DLL, which is the
engine that performs all of the disk partitioning/volume
creation work.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
}
Unit LVM;
{$PACKRECORDS C}
Interface
{$ifdef os2}
{$define lvm1}
{$endif}
{$ifdef linux}
{$define lvm2}
{$endif}
// The number of bytes in a sector on the disk.
const
BYTES_PER_SECTOR=512;
//The maximum number of cylinders, heads, and sectors that a partition table entry can accomodate.
//Cylinders are numbered 0 - 1023, for a maximum of 1024 cylinders.
//eads are numbered 0 - 255, for a maximum of 256 heads.
//Sectors are numbered 1 - 63, for a maximum of 63 sectors per track.
const
MAX_CYLINDERS= 1024;
MAX_HEADS = 256;
MAX_SECTORS = 63;
// The following define the values used to indicate that a partition table entry is for an EBR, not a partition.
const
EBR_BOOT_INDICATOR = 0;
EBR_FORMAT_INDICATOR = 5;
// The following define is used as the default Format_Indicator for new non-primary partitions.
const
NEW_LOGICAL_DRIVE_FORMAT_INDICATOR = $6;
// The following define is used as the default Format_Indicator for a new non-active primary partitions.
const
NEW_PRIMARY_PARTITION_FORMAT_INDICATOR = $16;
// The following define is used as the default Format_Indicator for a new active primary partition.
const
NEW_ACTIVE_PRIMARY_PARTITION_FORMAT_INDICATOR = $06;
// The following define is used to hold the value of the Boot_Indicator for active partitions.
const
ACTIVE_PARTITION = $80;
// Define the size of a Partition Name. Partition Names are user defined names given to a partition.
const
PARTITION_NAME_SIZE = 20;
// Define the size of a volume name. Volume Names are user defined names given to a volume.
const
VOLUME_NAME_SIZE = 20;
// Define the size of a disk name. Disk Names are user defined names given to physical disk drives in the system.
const
DISK_NAME_SIZE = 20;
// The name of the filesystem in use on a partition. This name may be up to 12 ( + NULL terminator) characters long.
const
FILESYSTEM_NAME_SIZE = 20;
// The comment field is reserved but is not currently used. This is for future expansion and use.
const
COMMENT_SIZE = 81;
// Define the minimum number of sectors to reserve on the disk for Boot Manager.
const
BOOT_MANAGER_SIZE = 2048;
// An INTEGER number is a whole number, either + or -.
//The number appended to the INTEGER key word indicates the number of bits
//used to represent an INTEGER of that type.
type
INTEGER16=SmallInt;
INTEGER32=LongInt;
INTEGER=LongInt;
// A CARDINAL number is a positive integer >= 0.
//The number appended to the CARDINAL key word indicates the number of bits
//used to represent a CARDINAL of that type.
type
CARDINAL16=Word;
CARDINAL32 = Cardinal;
(*
/* A REAL number is a floating point number. */
typedef float REAL32;
typedef double REAL64;
*)
REAL32 = double;
REAL64 = double;
// An ADDRESS variable is one which holds an address. The address can contain
//anything, or even be invalid. It is just an address which is presumed to
//hold some kind of data.
Type
ADDRESS=Pointer;
Type
pSTRING=PChar;
// 4 bytes
Type
DoubleWord=Cardinal;
//* The following types are used in the declaration of disk structures. Disk structures
//have a defined size and internal structure which must be matched exactly. */
//* 8 bytes. */
type
QuadWord=QWord;
// The following types are used internally by LVM. */
// Define a Partition Sector Number. A Partition Sector Number is relative to the start of a partition.
//The first sector in a partition is PSN 0.
type
PSN=Cardinal;
// Define a Logical Sector Number. A Logical Sector Number is relative to the start of a volume.
//The first sector in a volume is LSN 0.
type
LSN=Cardinal;
// Define a Logical Block Address. A Logical Block Address is relative to the start of a
//physical device - a disk drive. The first sector on a disk drive is LBA 0.
type
LBA=Cardinal;
// The following define sets the maximum number of LVM classes for which structures and storage will be reserved.
const
MAXIMUM_LVM_CLASSES = 3;
// The following enum defines the various LVM classes to which a "feature" may belong.
// An LVM Plugin is used to implement a "feature", so "plugin" and "feature" are really synonyms.
type
_LVM_Classes = (
Partition_Class, // For "features" which must operate on a partition level - i.e. Bad Block Relocation.
Aggregate_Class, // For "features" which combine partitions into a single logical entity - i.e. Drive Linking.
Volume_Class // For "features" which operate best on a volume level - i.e. encryption, mirroring etc.
);
LVM_Classes = _LVM_Classes;
// An LVM plugin may belong to one or more classes. For each class to which it belongs, certain attributes must be defined.
//This structure tracks those attributes for a class.
type
_LVM_Class_Attributes=record
ClassMember: BOOLEAN; // TRUE if a member of this class, FALSE otherwise.
GlobalExclusive: BOOLEAN; // TRUE if this plugin can not work with any other plugin - i.e. it
//must be the only "feature" on the volume, besides the built in feature of BBR.
TopExclusive: BOOLEAN; // TRUE if this plugin must be the topmost plugin in this class.
BottomExclusive: BOOLEAN; // TRUE if this plugin must be the bottommost plugin in this class.
ClassExclusive: BOOLEAN; // TRUE if this plugin will not work with any other plugin in this class.
Weight_Factor: CARDINAL32; // A value between 1 and 100 which is used to guide the LVM interfaces when attempting to
//establish a default ordering for plugins within this class. A value of 1
//indicates that this plugin wants to be as close to the bottom of the plugins
//in this class as possible. A value of 100 means that this plugin wants to
//be as close to being the topmost plugin in this class as possible. This value
//is only used if none of the "exclusive" flags are set.
end;
LVM_Class_Attributes=_LVM_Class_Attributes;
// The following enum specifies the interface types that LVM supports, and hence any plugin must support.
_LVM_Interface_Types= (
PM_Interface,
VIO_Interface, // LVM.EXE is a VIO app. since it is used during install, and during recovery scenarios where PM/Java may not be available.
Java_Interface // The LVM GUI is written in Java.
);
LVM_Interface_Types=_LVM_Interface_Types;
const
MAXIMUM_LVM_INTERFACE_TYPES = 3;
//* The following structures define what functions must be supported for each interface type.
type
PADDRESS=^ADDRESS;
PCARDINAL32=^CARDINAL32;
_LVM_OS2_Native_Support=record
//void (* _System Create_and_Configure) ( CARDINAL32 ID, ADDRESS InputBuffer, CARDINAL32 InputBufferSize, ADDRESS * OutputBuffer, CARDINAL32 * OutputBufferSize, CARDINAL32 * Error_Code);
Create_and_Configure: procedure(ID: CARDINAL32; InputBuffer: ADDRESS; InputBufferSize: CARDINAL32; OutputBuffer: PADDRESS; OutputBufferSize: PCARDINAL32; Error_Code: PCARDINAL32);
//void (* _System Display_Status) ( ADDRESS Volume_Handle, CARDINAL32 * Error_Code );
Display_Status: procedure(Volume_Handle: ADDRESS; Error_Code: PCARDINAL32 );
//void (* _System Control_Panel) (ADDRESS Volume_Handle, CARDINAL32 * Error_Code );
Control_Panel: procedure(Volume_Handle: ADDRESS; Error_Code: PCARDINAL32 );
//void (* _System Help_Panel) (CARDINAL32 Help_Index, CARDINAL32 * Error_Code);
Help_Panel: procedure(Help_Index: CARDINAL32; Error_Code: PCARDINAL32);
end;
LVM_OS2_Native_Support=_LVM_OS2_Native_Support;
type
_LVM_Interface_Support=record
Interface_Supported: BOOLEAN;
case longint of
0 : ( Java_Interface_Class : ^char );
1 : ( VIO_PM_Calls : LVM_OS2_Native_Support );
end;
LVM_Interface_Support=_LVM_Interface_Support;
//* The following define the default help indicies which must be supported by the Help_Panel function. NOTE: Index
//values from 0 to 100 are reserved by LVM. The Plugin may, for its own use, use any values above 100.
const
HELP_PLUGIN_DESCRIPTION = 0;
// The following define the maximum length of the names which can be used to represent a feature in LVM. The
//maximum name length for a feature is 30 characters plus the trailing NULL character. For command line parsing,
//though, a shorter name is preferable! Thus, the "short" name for a feature will be limited to 10 characters
//plus the trailing NULL character. The "short" name will be used for command line purposes, while the regular
//name will be used by all other interfaces.
const
MAX_FEATURE_NAME_LENGTH = 31;
MAX_FEATURE_SHORT_NAME_LENGTH = 11;
MAX_OEM_INFO_LENGTH =255;
// The following definitions are used to control and access the various "features" available through the LVM Engine, such as Drive Linking and BBR.
type
_Feature_ID_Data=record
Name: Array[0..MAX_FEATURE_NAME_LENGTH-1] of char; // Feature Name, for use in menus and command line parsing.
Short_Name: Array[0..MAX_FEATURE_SHORT_NAME_LENGTH-1] of char; // The name/code used to represent this feature during command line parsing.
OEM_Info: Array[0..MAX_OEM_INFO_LENGTH-1] of char; // Name and copyright info. of the manufacturer, i.e. IBM, Vinca, etc.
ID: CARDINAL32; // Numeric Feature ID.
Major_Version_Number: CARDINAL32; // The version number of this feature.
Minor_Version_Number: CARDINAL32; // The version number of this feature.
LVM_Major_Version_Number: CARDINAL32; // The version of LVM that this feature was designed to work with.
LVM_Minor_Version_Number: CARDINAL32; // The version of LVM that this feature was designed to work with.
Preferred_Class: LVM_Classes; // The class from which this "feature" prefers to be chosen. Encryption can be performed
//at the partition level or the volume level, and may therefore belong to both the
//Partition_Class and the Volume_Class. However, it is preferrable for it to be used
//on the volume level instead of at the partition level. Thus, its perferred class would
//be the Volume_Class, but it would still be a member of both the Volume_Class and the
//Partition_Class.
ClassData: Array[0..MAXIMUM_LVM_CLASSES-1] of LVM_Class_Attributes; // The attributes for each of the LVM classes that this "feature" is in.
Interface_Support: Array[0..MAXIMUM_LVM_INTERFACE_TYPES-1] of LVM_Interface_Support; // The functions and classes for each of the video modes that LVM can run it.
end;
Feature_ID_Data=_Feature_ID_Data;
// The following defines the TAG value used to identify an item of type Feature_ID_Data in a DLIST.
const
FEATURE_ID_DATA_TAG = 354385972;
// The following are invariant for a disk drive.
Type
Drive_Control_Record = record
Drive_Number: CARDINAL32; // OS/2 Drive Number for this drive.
Drive_Size: CARDINAL32; // The total number of sectors on the drive.
Drive_Serial_Number: DoubleWord; // The serial number assigned to this drive. For info. purposes only.
Drive_Handle: ADDRESS; // Handle used for operations on the disk that this record corresponds to.
Cylinder_Count: CARDINAL32; // The number of cylinders on the drive.
Heads_Per_Cylinder: CARDINAL32; // The number of heads per cylinder for this drive.
Sectors_Per_Track: CARDINAL32; // The number of sectors per track for this drive.
Drive_Is_PRM: BOOLEAN; // Set to TRUE if this drive is a PRM.
Reserved: Array[0..3-1] of BYTE; // Alignment.
end;
// The following structure is returned by the Get_Drive_Control_Data function.
Drive_Control_Array=record
Drive_Control_Data: ^Drive_Control_Record; // An array of drive control records.
Count: CARDINAL32; // The number of entries in the array of drive control records.
end;
// The following structure defines the information that can be changed for a specific disk drive.
Drive_Information_Record=record
Total_Available_Sectors: CARDINAL32; // The number of sectors on the disk which are not currently assigned to a partition.
Largest_Free_Block_Of_Sectors: CARDINAL32; // The number of sectors in the largest contiguous block of available sectors.
Corrupt_Partition_Table: BOOLEAN; // If TRUE, then the partitioning information found on the drive is incorrect!
Unusable: BOOLEAN; // If TRUE, the drive's MBR is not accessible and the drive can not be partitioned.
IO_Error: BOOLEAN; // If TRUE, then the last I/O operation on this drive failed!
Is_Big_Floppy: BOOLEAN; // If TRUE, then the drive is a PRM formatted as a big floppy (i.e. the old style removable media support).
Drive_Name: Array[0..DISK_NAME_SIZE-1] of Char; // User assigned name for this disk drive.
end;
Partition_Information_Record=record
Partition_Handle: ADDRESS; // The handle used to perform operations on this partition.
Volume_Handle: ADDRESS; // If this partition is part of a volume, this will be the handle of
//the volume. If this partition is NOT part of a volume, then this
//handle will be 0.
Drive_Handle: ADDRESS; // The handle for the drive this partition resides on.
Partition_Serial_Number: DoubleWord; // The serial number assigned to this partition.
Partition_Start: CARDINAL32; // The LBA of the first sector of the partition.
True_Partition_Size: CARDINAL32; // The total number of sectors comprising the partition.
Usable_Partition_Size: CARDINAL32; // The size of the partition as reported to the IFSM. This is the
//size of the partition less any LVM overhead.
Boot_Limit: CARDINAL32; // The maximum number of sectors from this block of free space that can be used to
//create a bootable partition if you allocate from the beginning of the block of
//free space.
Spanned_Volume: BOOLEAN; // TRUE if this partition is part of a multi-partition volume.
Primary_Partition: BOOLEAN; // True or False. Any non-zero value here indicates that
//this partition is a primary partition. Zero here indicates
//that this partition is a "logical drive" - i.e. it resides
//inside of an extended partition.
Active_Flag: BYTE; // 80 = Partition is marked as being active.
// 0 = Partition is not active.
OS_Flag: BYTE; // This field is from the partition table. It is known as the
//OS flag, the Partition Type Field, Filesystem Type, and
//various other names.
//Values of interest
//If this field is: (values are in hex)
//07 = The partition is a compatibility partition formatted for use
//with an installable filesystem, such as HPFS or JFS.
//00 = Unformatted partition
//01 = FAT12 filesystem is in use on this partition.
//04 = FAT16 filesystem is in use on this partition.
//0A = OS/2 Boot Manager Partition
//35 = LVM partition
//84 = OS/2 FAT16 partition which has been relabeled by Boot Manager to "Hide" it.
Partition_Type: BYTE; // 0 = Free Space
//1 = LVM Partition (Part of an LVM Volume.)
//2 = Compatibility Partition
//All other values are reserved for future use.
Partition_Status: BYTE; // 0 = Free Space
//1 = In Use - i.e. already assigned to a volume.
//2 = Available - i.e. not currently assigned to a volume.
On_Boot_Manager_Menu: BOOLEAN; // Set to TRUE if this partition is not part of a Volume yet is on the Boot Manager Menu.
Reserved: BYTE; // Alignment.
Volume_Drive_Letter: char; // The drive letter assigned to the volume that this partition is a part of.
Drive_Name: Array[0..DISK_NAME_SIZE-1] of char; // User assigned name for this disk drive.
File_System_Name: Array[0..FILESYSTEM_NAME_SIZE-1] of char;// The name of the filesystem in use on this partition, if it is known.
Partition_Name: Array[0..PARTITION_NAME_SIZE-1] of char; // The user assigned name for this partition.
Volume_Name: Array[0..VOLUME_NAME_SIZE-1] of char; // If this partition is part of a volume, then this will be the
//name of the volume that this partition is a part of. If this
//record represents free space, then the Volume_Name will be
//"FREE SPACE xx", where xx is a unique numeric ID generated by
//LVM.DLL. Otherwise it will be an empty string.
end;
// The following defines are for use with the Partition_Type field in the Partition_Information_Record.
const
pt_FREE_SPACE_PARTITION = 0;
pt_LVM_PARTITION = 1;
pt_COMPATIBILITY_PARTITION = 2;
// The following defines are for use with the Partition_Status field in the Partition_Information_Record.
const
PARTITION_IS_IN_USE = 1;
PARTITION_IS_AVAILABLE = 2;
PARTITION_IS_FREE_SPACE = 0;
// The following structure is returned by various functions in the LVM Engine.
type
Partition_Information_Array=record
Partition_Array: ^Partition_Information_Record; // An array of Partition_Information_Records.
Count: CARDINAL32; // The number of entries in the Partition_Array.
end;
// The following items are invariant for a volume.
type
Volume_Control_Record=record
Volume_Serial_Number: DoubleWord; // The serial number assigned to this volume.
Volume_Handle: ADDRESS; // The handle used to perform operations on this volume.
Compatibility_Volume: BOOLEAN; // TRUE indicates that this volume is compatible with older versions of OS/2.
//FALSE indicates that this is an LVM specific volume and can not be used without OS2LVM.DMD.
Device_Type: BYTE; // Indicates what type of device the Volume resides on:
//0 = Hard Drive under LVM Control
//1 = PRM under LVM Control
//2 = CD-ROM
//3 = Network drive
//4 = Unknown device NOT under LVM Control
Reserved: Array[0..2-1] of BYTE; // Alignment.
end;
// The following define the device types used in the Device_Type field of the Volume_Control_Record.
const
LVM_HARD_DRIVE = 0;
LVM_PRM = 1;
NON_LVM_CDROM = 2;
NETWORK_DRIVE = 3;
NON_LVM_DEVICE = 4;
// The following structure is returned by the Get_Volume_Control_Data function.
type
Volume_Control_Array=record
Volume_Control_Data: ^Volume_Control_Record; // An array of volume control records.
Count: CARDINAL32; // The number of entries in the array of volume control records.
end;
// The following information about a volume can (and often does) vary.
type
Volume_Information_Record=record
Volume_Size: CARDINAL32; // The number of sectors comprising the volume.
Partition_Count: CARDINAL32; // The number of partitions which comprise this volume.
Drive_Letter_Conflict: CARDINAL32; // 0 indicates that the drive letter preference for this volume is unique.
//1 indicates that the drive letter preference for this volume
//is not unique, but this volume got its preferred drive letter anyway.
//2 indicates that the drive letter preference for this volume
//is not unique, and this volume did NOT get its preferred drive letter.
//4 indicates that this volume is currently "hidden" - i.e. it has
//no drive letter preference at the current time.
Compatibility_Volume: BOOLEAN; // TRUE if this is for a compatibility volume, FALSE otherwise.
Bootable: BOOLEAN; // Set to TRUE if this volume appears on the Boot Manager menu, or if it is
//a compatibility volume and its corresponding partition is the first active
//primary partition on the first drive.
Drive_Letter_Preference: char; // The drive letter that this volume desires to be.
Current_Drive_Letter: char; // The drive letter currently used to access this volume. May be different than
//Drive_Letter_Preference if there was a conflict ( i.e. Drive_Letter_Preference
//is already in use by another volume ).
Initial_Drive_Letter: char; // The drive letter assigned to this volume by the operating system when LVM was started.
//This may be different from the Drive_Letter_Preference if there were conflicts, and
//may be different from the Current_Drive_Letter. This will be 0x0 if the Volume did
//not exist when the LVM Engine was opened (i.e. it was created during this LVM session).
New_Volume: BOOLEAN; // Set to FALSE if this volume existed before the LVM Engine was opened. Set to
//TRUE if this volume was created after the LVM Engine was opened.
Status: BYTE; // 0 = None.
//1 = Bootable
//2 = Startable
//3 = Installable.
Reserved_1: BYTE;
Volume_Name: Array[0..VOLUME_NAME_SIZE-1] of char; // The user assigned name for this volume.
File_System_Name: Array[0..FILESYSTEM_NAME_SIZE-1] of char;// The name of the filesystem in use on this partition, if it is known.
end;
// The following structure is used to return the feature information for the installed features, or the features on a volume.
type
Feature_Information_Array=record
Count: CARDINAL32;
Feature_Data: ^Feature_ID_Data;
end;
// The following structure defines an item on the Boot Manager Menu.
type
Boot_Manager_Menu_Item=record
Handle: ADDRESS; // A Volume or Partition handle.
Volume: BOOLEAN; // If TRUE, then Handle is the handle of a Volume. Otherwise, Handle is the handle of a partition.
end;
// The following structure is used to get a list of the items on the partition manager menu.
type
Boot_Manager_Menu=record
Menu_Items: ^Boot_Manager_Menu_Item;
Count: CARDINAL32;
end;
// The following structure is used to specify an LVM Feature when creating a volume. Since LVM Features may be part of
//more than one LVM Class, the specific class to be used with the feature must also be specified.
type
LVM_Feature_Specification_Record=record
Feature_ID: CARDINAL32; // The feature ID of the feature to use.
Actual_Class: LVM_Classes; // The LVM Class (supported by the specified feature) to use.
Init_Data: ADDRESS; // The address of a buffer containing initialization data for this feature.
//NULL if there is no initialization data being provided for this feature.
end;
// The following structure is used with the Get_Child_Handles function.
Type
LVM_Handle_Array_Record=record
Count: CARDINAL32;
Handles: ^ADDRESS;
end;
// The following preprocessor directives define the operations that can be performed on a partition, volume, or a block of free space.
// These definitions represent bits in a 32 bit value returned by the Get_Valid_Options function.
const
CREATE_PRIMARY_PARTITION = 1;
CREATE_LOGICAL_DRIVE = 2;
DELETEPARTITION = 4;
SET_ACTIVE_PRIMARY = 8;
SET_PARTITION_ACTIVE = $10;
SET_PARTITION_INACTIVE = $20;
SETSTARTABLE = $40;
INSTALLBOOTMANAGER = $80;
REMOVEBOOTMANAGER = $100;
SET_BOOT_MANAGER_DEFAULTS = $200;
ADD_TO_BOOT_MANAGER_MENU = $400;
REMOVE_FROM_BOOT_MANAGER_MENU = $800;
DELETEVOLUME = $1000;
HIDEVOLUME = $2000;
EXPANDVOLUME = $4000;
SET_VOLUME_INSTALLABLE = $8000;
ASSIGNDRIVELETTER = $10000;
CAN_BOOT_PRIMARY = $20000; // If a primary is created from this block of free space, then it can be made bootable.
CAN_BOOT_LOGICAL = $40000; // If a logical drive is created from this block of free space, then OS/2 can boot from it by adding it to the boot manager menu.
CAN_SET_NAME = $80000;
SET_BOOT_MANAGER_STARTABLE = $100000;
// The following enumeration defines the allocation strategies used by the Create_Partition function.
type
_Allocation_Algorithm =(
Automatic, // Let LVM decide which block of free space to use to create the partition.
Best_Fit, // Use the block of free space which is closest in size to the partition being created.
First_Fit, // Use the first block of free space on the disk which is large enough to hold a partition of the specified size.
Last_Fit, // Use the last block of free space on the disk which is large enough to hold a partition of the specified size.
From_Largest, // Find the largest block of free space and allocate the partition from that block of free space.
From_Smallest, // Find the smallest block of free space that can accommodate a partition of the size specified.
All // Turn the specified drive or block of free space into a single partition.
);
Allocation_Algorithm=_Allocation_Algorithm;
// Error codes returned by the LVM Engine.
const
LVM_ENGINE_NO_ERROR = 0;
LVM_ENGINE_OUT_OF_MEMORY = 1;
LVM_ENGINE_IO_ERROR = 2;
LVM_ENGINE_BAD_HANDLE = 3;
LVM_ENGINE_INTERNAL_ERROR = 4;
LVM_ENGINE_ALREADY_OPEN = 5;
LVM_ENGINE_NOT_OPEN = 6;
LVM_ENGINE_NAME_TOO_BIG = 7;
LVM_ENGINE_OPERATION_NOT_ALLOWED = 8;
LVM_ENGINE_DRIVE_OPEN_FAILURE = 9;
LVM_ENGINE_BAD_PARTITION = 10;
LVM_ENGINE_CAN_NOT_MAKE_PRIMARY_PARTITION = 11;
LVM_ENGINE_TOO_MANY_PRIMARY_PARTITIONS = 12;
LVM_ENGINE_CAN_NOT_MAKE_LOGICAL_DRIVE = 13;
LVM_ENGINE_REQUESTED_SIZE_TOO_BIG = 14;
LVM_ENGINE_1024_CYLINDER_LIMIT = 15;
LVM_ENGINE_PARTITION_ALIGNMENT_ERROR = 16;
LVM_ENGINE_REQUESTED_SIZE_TOO_SMALL = 17;
LVM_ENGINE_NOT_ENOUGH_FREE_SPACE = 18;
LVM_ENGINE_BAD_ALLOCATION_ALGORITHM = 19;
LVM_ENGINE_DUPLICATE_NAME = 20;
LVM_ENGINE_BAD_NAME = 21;
LVM_ENGINE_BAD_DRIVE_LETTER_PREFERENCE = 22;
LVM_ENGINE_NO_DRIVES_FOUND = 23;
LVM_ENGINE_WRONG_VOLUME_TYPE = 24;
LVM_ENGINE_VOLUME_TOO_SMALL = 25;
LVM_ENGINE_BOOT_MANAGER_ALREADY_INSTALLED = 26;
LVM_ENGINE_BOOT_MANAGER_NOT_FOUND = 27;
LVM_ENGINE_INVALID_PARAMETER = 28;
LVM_ENGINE_BAD_FEATURE_SET = 29;
LVM_ENGINE_TOO_MANY_PARTITIONS_SPECIFIED = 30;
LVM_ENGINE_LVM_PARTITIONS_NOT_BOOTABLE = 31;
LVM_ENGINE_PARTITION_ALREADY_IN_USE = 32;
LVM_ENGINE_SELECTED_PARTITION_NOT_BOOTABLE = 33;
LVM_ENGINE_VOLUME_NOT_FOUND = 34;
LVM_ENGINE_DRIVE_NOT_FOUND = 35;
LVM_ENGINE_PARTITION_NOT_FOUND = 36;
LVM_ENGINE_TOO_MANY_FEATURES_ACTIVE = 37;
LVM_ENGINE_PARTITION_TOO_SMALL = 38;
LVM_ENGINE_MAX_PARTITIONS_ALREADY_IN_USE = 39;
LVM_ENGINE_IO_REQUEST_OUT_OF_RANGE = 40;
LVM_ENGINE_SPECIFIED_PARTITION_NOT_STARTABLE = 41;
LVM_ENGINE_SELECTED_VOLUME_NOT_STARTABLE = 42;
LVM_ENGINE_EXTENDFS_FAILED = 43;
LVM_ENGINE_REBOOT_REQUIRED = 44;
LVM_ENGINE_CAN_NOT_OPEN_LOG_FILE = 45;
LVM_ENGINE_CAN_NOT_WRITE_TO_LOG_FILE = 46;
LVM_ENGINE_REDISCOVER_FAILED = 47;
LVM_ENGINE_INTERNAL_VERSION_FAILURE = 48;
LVM_ENGINE_PLUGIN_OPERATION_INCOMPLETE = 49;
LVM_ENGINE_BAD_FEATURE_ID = 50;
LVM_ENGINE_NO_INIT_DATA = 51;
LVM_ENGINE_NO_CONTEXT_DATA = 52;
LVM_ENGINE_WRONG_CLASS_FOR_FEATURE = 53;
LVM_ENGINE_INCOMPATIBLE_FEATURES_SELECTED = 54;
LVM_ENGINE_NO_CHILDREN = 55;
LVM_ENGINE_FEATURE_NOT_SUPPORTED_BY_INTERFACE= 56;
LVM_ENGINE_NO_PARENT = 57;
LVM_ENGINE_VOLUME_HAS_NOT_BEEN_COMMITTED_YET = 58;
LVM_ENGINE_UNABLE_TO_REFERENCE_VOLUME = 59;
LVM_ENGINE_PARSING_ERROR = 60;
LVM_ENGINE_INTERNAL_FEATURE_ERROR = 61;
LVM_ENGINE_VOLUME_NOT_CONVERTED = 62;
// The following definitions are used for command line processing. As the command line is processed,
//the command line is first broken up into tokens. Each token has a "characterization", which indicates
//what the token is thought to be.
type
Token_Characterizations=(
LVM_AcceptableCharsStr,
LVM_All,
LVM_BestFit,
LVM_BootDOS,
LVM_BootOS2,
LVM_Bootable,
LVM_CR,
LVM_CRI,
LVM_Compatibility,
LVM_Drive,
LVM_Existing,
LVM_Expand,
LVM_FS,
LVM_FirstFit,
LVM_Freespace,
LVM_FromEnd,
LVM_FromLargest,
LVM_FromSmallest,
LVM_FromStart,
LVM_LVM,
LVM_LastFit,
LVM_Logical,
LVM_New,
LVM_NoBoot,
LVM_NonBootable,
LVM_NotBootable,
LVM_Partition,
LVM_Primary,
LVM_RB,
LVM_Size,
LVM_Unusable,
LVM_Unused,
LVM_Volume,
LVM_Volumes,
LVM_Comma,
LVM_Number,
LVM_Colon,
LVM_Space,
LVM_Tab,
LVM_MultiSpace,
LVM_MultiTab,
LVM_String,
LVM_FileNameStr,
LVM_SemiColon,
LVM_Eof,
LVM_Separator,
LVM_Open_Paren, //* ( */
LVM_Close_Paren, //* ) */
LVM_Open_Bracket, //* [ */
LVM_Close_Bracket, //* ] */
LVM_Open_Brace, //* { */
LVM_Close_Brace, //* } */
LVM_EQ_Sign, //* = */
LVM_Bootmgr,
LVM_Create,
LVM_Delete,
LVM_DriveLetter,
LVM_File,
LVM_Hide,
LVM_Install,
LVM_NewMBR,
LVM_Query,
LVM_RediscoverPRM,
LVM_SetName,
LVM_SetStartable,
LVM_SI,
LVM_SlashSize,
LVM_StartLog
);
type
_LVM_Token=record
TokenText: PChar; // The actual text of the token.
TokenType: Token_Characterizations; // What the token is thought to be.
Position: CARDINAL32; // The position of the first character of the token on the command line.
end;
LVM_Token=_LVM_Token;
const
LVM_TOKEN_TAG = 28387473;
// Function Prototypes
//***************************************************************************
//
// Functions relating to the LVM Engine itself
//
//***************************************************************************
//****************************************************************************************************/
//* */
//* Function Name: Open_LVM_Engine */
//* */
//* Descriptive Name: Opens the LVM Engine and readies it for use. */
//* */
//* Input: BOOLEAN Ignore_CHS : If TRUE, then the LVM engine will not check the CHS values in the */
//* MBR/EBR partition tables for validity. This is useful if there */
//* are drive geometry problems, such as the drive was partitioned and */
//* formatted with one geometry and then moved to a different machine */
//* which uses a different geometry for the drive. This would cause */
//* the starting and ending CHS values in the partition tables to */
//* be inconsistent with the size and partition offset entries in the */
//* partition tables. Setting Ignore_CHS to TRUE will disable the */
//* LVM Engine's CHS consistency checks, thereby allowing the drive */
//* to be partitioned. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in which to store an error code */
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if this function completes successfully. If an error occurs, */
//* *Error_Code will contain a non-zero error code. */
//* */
//* Error Handling: If this function aborts with an error, all memory allocated during the course */
//* of this function will be released. Disk read errors will be reported to the */
//* user via pop-up error messages. Disk read errors will only cause this */
//* function to abort if none of the disk drives in the system could be */
//* successfully read. */
//* */
//* Side Effects: The LVM Engine will be initialized. The partition tables for all OS2DASD */
//* controlled disk drives will be read into memory. Memory will be allocated for */
//* the data structures used by the LVM Engine. */
//* */
//* Notes: This is provided for programs that used LVM Version 1. This function assumes an */
//* LVM_Interface_Type of VIO_Interface. */
//* */
//****************************************************************************************************/
procedure Open_LVM_Engine(Ignore_CHS: BOOLEAN; Error_Code: PCARDINAL32); external 'lvm' name 'Open_LVM_Engine';
//****************************************************************************************************/
//* */
//* Function Name: Open_LVM_Engine2 */
//* */
//* Descriptive Name: Opens the LVM Engine and readies it for use. */
//* */
//* Input: BOOLEAN Ignore_CHS : If TRUE, then the LVM engine will not check the CHS values in the */
//* MBR/EBR partition tables for validity. This is useful if there */
//* are drive geometry problems, such as the drive was partitioned and */
//* formatted with one geometry and then moved to a different machine */
//* which uses a different geometry for the drive. This would cause */
//* the starting and ending CHS values in the partition tables to */
//* be inconsistent with the size and partition offset entries in the */
//* partition tables. Setting Ignore_CHS to TRUE will disable the */
//* LVM Engine's CHS consistency checks, thereby allowing the drive */
//* to be partitioned. */
//* LVM_Interface_Types Interface_Type - Indicate the type of user interface being used: */
//* PM_Interface, VIO_Interface, or Java_Interface. This lets the */
//* LVM Engine know which interface support routines to call in any */
//* plugin modules which may be loaded. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in which to store an error code */
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if this function completes successfully. If an error occurs, */
//* *Error_Code will contain a non-zero error code. */
//* */
//* Error Handling: If this function aborts with an error, all memory allocated during the course */
//* of this function will be released. Disk read errors will be reported to the */
//* user via pop-up error messages. Disk read errors will only cause this */
//* function to abort if none of the disk drives in the system could be */
//* successfully read. */
//* */
//* Side Effects: The LVM Engine will be initialized. The partition tables for all OS2DASD */
//* controlled disk drives will be read into memory. Memory will be allocated for */
//* the data structures used by the LVM Engine. */
//* */
//* Notes: New in LVM Version 2 */
//* */
//****************************************************************************************************/
{$ifdef lvm2}
procedure Open_LVM_Engine2(Ignore_CHS: BOOLEAN; Interface_Type: LVM_Interface_Types; Error_Code: PCARDINAL32); external 'lvm' name 'Open_LVM_Engine2';
{$endif}
//*********************************************************************/
//* */
//* Function Name: Commit_Changes */
//* */
//* Descriptive Name: Saves any changes made to the partitioning */
//* information of the OS2DASD controlled disk */
//* drives in the system. */
//* */
//* Input: CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code */
//* should an error occur. */
//* */
//* Output: The function return value will be TRUE if all of the */
//* partitioning/volume changes made were successfully */
//* written to disk. Also, *Error_Code will be 0 if no */
//* errors occur. */
//* */
//* If an error occurs, then the furnction return value */
//* will be FALSE and *Error_Code will contain a non-zero */
//* error code. */
//* */
//* Error Handling: If an error occurs, the function return value */
//* will be false and *Error_Code will be > 0. */
//* */
//* Disk read and write errors will be indicated by*/
//* setting the IO_Error field of the */
//* Drive_Information_Record to TRUE. Thus, if */
//* the function return value is FALSE, and */
//* *Error_Code indicates an I/O error, the caller */
//* of this function should call the */
//* Get_Drive_Status function on each drive to */
//* determine which drives had I/O errors. */
//* */
//* If a read or write error occurs, then the */
//* engine may not have been able to create a */
//* partition or volume. Thus, the caller */
//* may want to refresh all partition and volume */
//* data to see what the engine was and was not */
//* able to create. */
//* */
//* Side Effects: The partitioning information of the disk drives */
//* in the system may be altered. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
function Commit_Changes(Error_Code: PCARDINAL32): BOOLEAN; external 'lvm' name 'Commit_Changes';
//*********************************************************************/
//* */
//* Function Name: Set_Java_Call_Back */
//* */
//* Descriptive Name: This function allows the calling Java program */
//* to set the call back address. The call back */
//* address is used when the LVM Engine or one of */
//* its plug-ins, needs to run a Java class to */
//* gather information from the user. */
//* */
//* Input: void ( * Execute_Java_Class) ... - The address of a */
//* function that the LVM */
//* engine may call when */
//* it needs a Java class */
//* to be executed. This */
//* is only required if the*/
//* user interface being */
//* used is written in Java*/
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code */
//* should an error occur. */
//* */
//* Output: If the function completes successfully, then *Error_Code*/
//* will be set to LVM_ENGINE_NO_ERROR. Otherwise, */
//* *Error_Code will be set to a non-zero error code. */
//* */
//* Error Handling: If an error occurs, the function will abort and*/
//* *Error_Code will be set to a non-zero error */
//* code. */
//* */
//* Side Effects: The Java call back address is set to point to the*/
//* specified function. Once the Java call back */
//* address is set, LVM plug-ins which require the */
//* Java call back will be enabled and can be used */
//* during the creation of LVM Volumes. */
//* */
//* Notes: If a Java interface is in use (as specified on the */
//* Open_LVM_Engine call), then this function must be called*/
//* in order to enable those LVM plug-ins which require */
//* initialization information during the creation of an */
//* LVM Volume. If these plug-ins are not enabled, then */
//* they will not be reported by the Get_Available_Features */
//* API, nor can they be used or accessed by any other LVM */
//* Engine APIs. Thus, this function should be called */
//* immediately after the Open_LVM_Engine API is called. */
//* */
//*********************************************************************/
{$ifdef lvm2}
type
TJavaExecProc=procedure(
Class_Name: PChar;
InputBuffer: ADDRESS;
InputBufferSize: CARDINAL32;
OutputBuffer: PADDRESS;
OutputBufferSize,
Error_Code: PCARDINAL32);
procedure Set_Java_Call_Back(
Execute_Java_Class: TJAvaExecProc;
Error_Code: PCARDINAL32); external 'lvm' name 'Set_Java_Call_Back';
{$endif}
//*********************************************************************/
//* */
//* Function Name: Close_LVM_Engine */
//* */
//* Descriptive Name: Closes the LVM Engine and frees any memory */
//* held by the LVM Engine. */
//* */
//* Input: None. */
//* */
//* Output: None. */
//* */
//* Error Handling: N/A */
//* */
//* Side Effects: Any memory held by the LVM Engine is released. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Close_LVM_Engine; external 'lvm' name 'Close_LVM_Engine';
//*********************************************************************/
//* */
//* Function Name: Get_Available_Features */
//* */
//* Descriptive Name: Returns the feature ID information for each of*/
//* the features that the LVM Engine knows about. */
//* */
//* Input: CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code */
//* should an error occur. */
//* */
//* Output: If successful, a Feature_Information_Array structure is */
//* returned with a non-zero Count. Also, *Error_Code will */
//* be set to LVM_ENGINE_NO_ERROR. If an error occurs, */
//* then the Count field in the structure will be 0 and */
//* ( *Error_Code) will contain a non-zero error code. */
//* */
//* Error Handling: The only expected error is if this function is */
//* called while the LVM Engine is not open. This */
//* should be the only error condition. */
//* */
//* Side Effects: Memory is allocated using the LVM Engine's memory*/
//* manager for the array of Feature_ID_Data items */
//* being returned. */
//* */
//* Notes: This function seems to be presented since LVM Version 2 */
//* */
//*********************************************************************/
{$ifdef LVM2}
function Get_Available_Features(Error_Code: PCARDINAL32): Feature_Information_Array; external 'lvm' name 'Get_Available_Features';
{$endif}
//*********************************************************************/
//* */
//* Function Name: Issue_Feature_Command */
//* */
//* Descriptive Name: Issues a feature specific command to either */
//* the Ring 0 or Ring 3 portion of the feature. */
//* */
//* Input: CARDINAL32 Feature_ID - The numeric ID assigned to the */
//* feature which is to receive the */
//* command being issued. */
//* ADDRESS Handle - The handle of the volume, partition, or */
//* aggregate to which the feature command */
//* is to be directed. */
//* BOOLEAN Ring0 - If TRUE, then the command will be sent */
//* to the Ring 0 portion of the feature. */
//* If FALSE, then the command will be sent */
//* to the Ring 3 portion of the feature. */
//* ADDRESS InputBuffer - A buffer containing the command and*/
//* any necessary information for the */
//* feature to process the command. */
//* CARDINAL32 InputSize - The number of bytes in the */
//* InputBuffer. */
//* ADDRESS * OutputBuffer - The address of a variable used */
//* to hold the location of the */
//* output buffer created by the */
//* feature in response to the */
//* command in InputBuffer. */
//* CARDINAL32 * OutputSize - The address of a variable used */
//* to hold the number of bytes in */
//* *OutputBuffer. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code */
//* should an error occur. */
//* */
//* Output: If successful, then *Error_Code will be set to */
//* LVM_ENGINE_NO_ERROR. If unsuccessful, then *Error_Code */
//* will be set to a non-zero error code. *OutputBuffer and*/
//* *OutputSize are set by the feature. If the feature */
//* specified does not exist, then *OutputBuffer will be */
//* NULL and *Outputsize will be 0. If the feature does */
//* exist, then the value of *OutputBuffer and *OutputSize */
//* depend upon the feature. */
//* */
//* Error Handling: If the specified feature does not exist, then */
//* *Error_Code will contain a non-zero error code, */
//* *OutputBuffer will be NULL, and *OutputSize will*/
//* be set to 0. All other error conditions are */
//* feature dependent. */
//* */
//* Side Effects: Side effects are feature dependent. */
//* */
//* Notes: New in LVM Version 2 */
//* */
//*********************************************************************/
{$ifdef lvm2}
void _System Issue_Feature_Command( CARDINAL32 Feature_ID,
ADDRESS Handle,
BOOLEAN Ring0,
ADDRESS InputBuffer,
CARDINAL32 InputSize,
ADDRESS * OutputBuffer,
CARDINAL32 * OutputSize,
CARDINAL32 * Error_Code );
{$endif}
//*********************************************************************/
//* */
//* Function Name: Parse_Feature_Parameters */
//* */
//* Descriptive Name: This function allows access to the parsing */
//* function of an LVM Plug-in Feature. The */
//* specified feature will be passed a list of */
//* tokens to parse, and, if it parses the tokens */
//* successfully, will produce a buffer containing*/
//* initialization data that can be used with the */
//* Create_Volume API. If it encounters an error,*/
//* the current item in the Tokens list will be */
//* the offending item, and a pointer to an error */
//* message will be returned. */
//* */
//* Input: DLIST Tokens - A DLIST of tokens to parse. Parsing will*/
//* begin with the current entry in the list */
//* and proceed until there is an error or */
//* until the specified feature has found a */
//* complete command. Each feature defines */
//* what commands it will accept. */
//* LVM_Feature_Specification_Record * Feature_Data - A */
//* pointer to a record which contains the */
//* ID of the feature which is to parse the */
//* DLIST of Tokens. The other fields in */
//* this record will be filled in by the */
//* feature if it successfully parses the */
//* tokens. */
//* char ** Error_Message - The address of a pointer to char.*/
//* This will be set to NULL if the feature */
//* successfully parses the list of tokens, */
//* or it will be set to point to an error */
//* message if an error occurs. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 */
//* variable into which an error code may */
//* be placed. The error code will be */
//* LVM_ENGINE_NO_ERROR if this function */
//* completes successfully, or a non-zero */
//* error code if an error occurs. */
//* */
//* Output: If there are no errors, the Actual_Class and Init_Data */
//* fields of *Feature_Data will be set, *Error_Message will*/
//* be set to NULL, and Error_Code will be set to */
//* LVM_ENGINE_NO_ERROR. The current item in the Tokens */
//* list will be the first token that was not parsed by the */
//* feature (i.e. the first token after the command accepted*/
//* by the plug-in). */
//* */
//* If an error occurs, the values of Actual_Class and */
//* Init_Data in *Feature_Data are undefined. *Error_Code */
//* will be set to LVM_ENGINE_PARSING_ERROR if the error is */
//* parsing related, or some other non-zero value if the */
//* error is not parsing related. If the error is parsing */
//* related, then *Error_Message will point to an error */
//* message which can be displayed for the user. The */
//* current item in the Tokens list will be the token which */
//* failed. */
//* */
//* Error Handling: If an parsing related error occurs, i.e. the */
//* tokens in the Tokens list do not form a valid */
//* command accepted by the specified feature, then */
//* the current item in the Tokens list will be the */
//* offending token, *Error_Message will be set to */
//* point to an error message, and *Error_Code will */
//* be set to LVM_ENGINE_PARSING_ERROR. */
//* If any other error occurs, the current item in */
//* the Tokens list will be the token that was being*/
//* processed when the error occurs, and *Error_Code*/
//* will be set to a non-zero value. */
//* */
//* Side Effects: The current item in the Tokens list may change. */
//* */
//* Notes: Each feature defines which commands it will accept, and */
//* therefore which commands it will successfully parse. */
//* */
//*********************************************************************/
{$ifdef lvm2}
void _System Parse_Feature_Parameters( DLIST Tokens,
LVM_Feature_Specification_Record * Feature_Data,
char ** Error_Message,
CARDINAL32 * Error_Code);
{$endif}
//*********************************************************************/
//* */
//* Function Name: Refresh_LVM_Engine */
//* */
//* Descriptive Name: This function causes the LVM Engine to look */
//* for changes in the current system */
//* configuration and update its internal tables */
//* accordingly. */
//* */
//* Input: CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code */
//* should an error occur. */
//* */
//* Output: None. */
//* */
//* Error Handling: If an error occurs, *Error_Code will be set to */
//* a non-zero value. */
//* */
//* Side Effects: Volumes which represent non-LVM devices may have */
//* their handles changed! */
//* */
//* Notes: After calling this function, Get_Volume_Control_Data */
//* should be called to get the updated list of volumes. */
//* This is necessary as the handles of some volumes may */
//* have changed. */
//* */
//*********************************************************************/
procedure Refresh_LVM_Engine(Error_Code: PCARDINAL32); external 'lvm' name 'Refresh_LVM_Engine';
//****************************************************************************
//
// Functions relating to Drives
//
//***************************************************************************
//*********************************************************************/
//* */
//* Function Name: Get_Drive_Control_Data */
//* */
//* Descriptive Name: This function returns an array of */
//* Drive_Control_Records. These records provide*/
//* important information about the drives in the*/
//* system and provide the handles required to */
//* access them. */
//* */
//* Input: CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code */
//* should an error occur. */
//* */
//* Output: A Drive_Control_Array structure is returned. If no */
//* errors occur, Drive_Control_Data will be non-NULL, */
//* Count will be greater than zero, and *Error_Code will */
//* be 0. */
//* */
//* Error Handling: If an error occurs, the Drive_Control_Array */
//* returned by this function will have NULL for */
//* Drive_Control_Data, and 0 for Count. */
//* *Error_Code will be greater than 0. */
//* */
//* Side Effects: None. */
//* */
//* Notes: The caller becomes responsible for the memory allocated */
//* for the array of Drive_Control_Records pointed to by */
//* Drive_Control_Data pointer in the Drive_Control_Array */
//* structure returned by this function. The caller should */
//* free this memory when they are done using it. */
//* */
//*********************************************************************/
function Get_Drive_Control_Data(Error_Code: PCARDINAL32): Drive_Control_Array; external 'lvm' name 'Get_Drive_Control_Data';
//*********************************************************************/
//* */
//* Function Name: Get_Drive_Status */
//* */
//* Descriptive Name: Returns the Drive_Information_Record for the */
//* drive specified by Drive_Handle. */
//* */
//* Input: ADDRESS Drive_Handle - The handle of the drive to use. */
//* Drive handles are obtained through the*/
//* Get_Drive_Control_Data function. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code */
//* should an error occur. */
//* */
//* Output: This function returns the Drive_Information_Record for */
//* the drive associated with the specified Drive_Handle. */
//* If no errors occur, *Error_Code will be set to 0. If an*/
//* error does occur, then *Error_Code will be non-zero. */
//* */
//* Error Handling: If an error occurs, then *Error_Code will be */
//* non-zero. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
function Get_Drive_Status(Drive_Handle: ADDRESS; Error_Code: PCARDINAL32): Drive_Information_Record; external 'lvm' name 'Get_Drive_Status';
//****************************************************************************
//
// Functions relating to Partitions
//
//***************************************************************************
//*********************************************************************/
//* */
//* Function Name: Get_Partitions */
//* */
//* Descriptive Name: Returns an array of partitions associated */
//* with the object specified by Handle. */
//* */
//* Input:ADDRESS Handle - This is the handle of a drive or volume. */
//* Drive handles are obtained through the */
//* Get_Drive_Control_Data function. Volume */
//* handles are obtained through the */
//* Get_Volume_Control_Data function. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code */
//* should an error occur. */
//* */
//* Output: This function returns a structure. The structure has */
//* two components: an array of partition information */
//* records and the number of entries in the array. If */
//* Handle is the handle of a disk drive, then the returned */
//* array will contain a partition information record for */
//* each partition and block of free space on that drive. */
//* If Handle is the handle of a volume, then the returned */
//* array will contain a partition information record for */
//* each partition which is part of the specified volume. */
//* If no errors occur, then *Error_Code will be 0. If an */
//* error does occur, then *Error_Code will be non-zero. */
//* */
//* Error Handling: Any memory allocated for the return value will */
//* be freed. The Partition_Information_Array */
//* returned by this function will contain a NULL */
//* pointer for Partition_Array, and have a Count of*/
//* 0. *Error_Code will be non-zero. */
//* */
//* If Handle is non-NULL and is invalid, a trap */
//* is likely. */
//* */
//* Side Effects: Memory will be allocated to hold the array */
//* returned by this function. */
//* */
//* Notes: The caller becomes responsible for the memory allocated */
//* for the array of Partition_Information_Records pointed */
//* to by Partition_Array pointer in the */
//* Partition_Information_Array structure returned by this */
//* function. The caller should free this memory when they */
//* are done using it. */
//* */
//*********************************************************************/
function Get_Partitions(Handle: ADDRESS; Error_Code: PCARDINAL32): Partition_Information_Array; external 'lvm' name 'Get_Partitions';
//*********************************************************************/
//* */
//* Function Name: Get_Partition_Handle */
//* */
//* Descriptive Name: Returns the handle of the partition whose */
//* serial number matches the one provided. */
//* */
//* Input: CARDINAL32 Serial_Number - This is the serial number to */
//* look for. If a partition with*/
//* a matching serial number is */
//* found, its handle will be */
//* returned. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: If a partition with a matching serial number is found, */
//* then the function return value will be the handle */
//* of the partition found. If no matching partition is */
//* found, then the function return value will be NULL. */
//* */
//* Error Handling: If no errors occur, *Error_Code will be */
//* LVM_ENGINE_NO_ERROR. If an error occurs, then */
//* *Error_Code will be a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
function Get_Partition_Handle(Serial_Number: CARDINAL32; Error_Code: PCARDINAL32): ADDRESS; external 'lvm' name 'Get_Partition_Handle';
//*********************************************************************/
//* */
//* Function Name: Get_Partition_Information */
//* */
//* Descriptive Name: Returns the Partition_Information_Record for */
//* the partition specified by Partition_Handle. */
//* */
//* Input: ADDRESS Partition_Handle - The handle associated with the*/
//* partition for which the */
//* Partition_Information_Record */
//* is desired. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: A Partition_Information_Record is returned. If there */
//* is no error, then *Error_Code will be 0. If an error */
//* occurs, *Error_Code will be non-zero. */
//* */
//* Error Handling: If the Partition_Handle is not a valid handle, */
//* a trap could result. If it is a handle for */
//* something other than a partition, an error code*/
//* will be returned in *Error_Code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
function Get_Partition_Information(Partition_Handle: ADDRESS; Error_Code: PCARDINAL32): Partition_Information_Record; external 'lvm' name 'Get_Partition_Information';
//*********************************************************************/
//* */
//* Function Name: Create_Partition */
//* */
//* Descriptive Name: Creates a partition on a disk drive. */
//* */
//* Input: ADDRESS Handle - The handle of a disk drive or */
//* a block of free space. */
//* CARDINAL32 Size - The size, in sectors, of the */
//* partition to create. */
//* char Name[] - The name to give to the newly */
//* created partition. */
//* Allocation_Algorithm algorithm - If Handle is a drive, */
//* then the engine will */
//* find a block of free */
//* space to use to create */
//* the partition. This */
//* tells the engine which */
//* memory management */
//* algorithm to use. */
//* BOOLEAN Bootable - If TRUE, then the engine will */
//* only create the partition if */
//* it can be booted from. If */
//* Primary_Partition is FALSE, */
//* then it is assumed that OS/2 */
//* is the operating system that */
//* will be booted. */
//* BOOLEAN Primary_Partition - If TRUE, then the */
//* engine will create */
//* a primary partition. */
//* If FALSE, then the */
//* engine will create a */
//* logical drive. */
//* BOOLEAN Allocate_From_Start - If TRUE, then the */
//* engine will */
//* allocate the new */
//* partition from the */
//* beginning of the */
//* selected block of */
//* free space. If */
//* FALSE, then the */
//* partition will be */
//* allocated from the */
//* end of the selected*/
//* block of free */
//* space. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: The function return value will be the handle of the */
//* partition created. If the partition could not be */
//* created, then NULL will be returned. */
//* *Error_Code will be 0 if the partition was created. */
//* *Error_Code will be > 0 if the partition could not be */
//* created. */
//* */
//* Error Handling: If the partition can not be created, then any */
//* memory allocated by this function will be */
//* freed and the partitioning of the disk in */
//* question will be unchanged. */
//* */
//* If Handle is not a valid handle, then a trap */
//* may result. */
//* */
//* If Handle represents a partition or volume, */
//* then the function will abort and set */
//* *Error_Code to a non-zero value. */
//* */
//* Side Effects: A partition may be created on a disk drive. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
type
TPartitionName=Array[0..PARTITION_NAME_SIZE-1] of char;
function Create_Partition(Handle: ADDRESS;
Size: CARDINAL32;
Name: TPartitionName;
algorithm: Allocation_Algorithm;
Bootable: BOOLEAN;
Primary_Partition: BOOLEAN;
Allocate_From_Start: BOOLEAN;
Error_Code: PCARDINAL32
): ADDRESS; external 'lvm' name 'Create_Partition';
//*********************************************************************/
//* */
//* Function Name: Delete_Partition */
//* */
//* Descriptive Name: Deletes the partition specified by */
//* Partition_Handle. */
//* */
//* Input: ADDRESS Partition_Handle - The handle associated with the*/
//* partition to be deleted. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if the partition was deleted */
//* successfully. *Error_Code will be > 0 if the partition */
//* could not be deleted. */
//* */
//* Error Handling: If the partition can not be deleted, then */
//* *Error_Code will be > 0. */
//* */
//* If Partition_Handle is not a valid handle, a */
//* trap may result. */
//* */
//* If Partition_Handle is a volume or drive handle,*/
//* then this function will abort and set */
//* *Error_Code to a non-zero value. */
//* */
//* Side Effects: A partition on a disk drive may be deleted. */
//* */
//* Notes: A partition can not be deleted if it is part of a */
//* volume! */
//* */
//*********************************************************************/
procedure Delete_Partition(Partition_Handle: ADDRESS; Error_Code: PCARDINAL32); external 'lvm' name 'Delete_Partition';
//*********************************************************************/
//* */
//* Function Name: Set_Active_Flag */
//* */
//* Descriptive Name: Sets the Active Flag field for a partition. */
//* */
//* Input: ADDRESS Partition_Handle - The handle of the partition */
//* whose Active Flag is to be set*/
//* BYTE Active_Flag - The new value for the Active Flag. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if the Active Flag was */
//* successfully set, otherwise *Error_Code will contain a */
//* non-zero error code indicating what went wrong. */
//* */
//* Error Handling: If the Active Flag can not be set, this function*/
//* will abort without changing any disk structures.*/
//* */
//* If Partition_Handle is not a valid handle, a */
//* trap may result. */
//* */
//* If Partition_Handle is a volume or drive handle,*/
//* then this function will abort and set */
//* *Error_Code to a non-zero value. */
//* */
//* */
//* Side Effects: The Active Flag for a partition may be modified. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Set_Active_Flag(Partition_Handle: ADDRESS;
Active_Flag: BYTE;
Error_Code: PCARDINAL32
); external 'lvm' name 'Set_Active_Flag';
//*********************************************************************/
//* */
//* Function Name: Set_OS_Flag */
//* */
//* Descriptive Name: Sets the OS Flag field for a partition. This */
//* field is typically used to indicate the */
//* filesystem used on the partition, which */
//* generally gives an indication of which OS is */
//* using that partition. */
//* */
//* Input: ADDRESS Partition_Handle - The handle of the partition */
//* whose Active Flag is to be set*/
//* BYTE OS_Flag - The new value for the OS Flag. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if the OS Flag was successfully */
//* set, otherwise *Error_Code will contain a non-zero error*/
//* code indicating what went wrong. */
//* */
//* Error Handling: If the OS Flag can not be set, this function */
//* will abort without changing any disk structures.*/
//* */
//* If Partition_Handle is not a valid handle, a */
//* trap may result. */
//* */
//* If Partition_Handle is a volume or drive handle,*/
//* then this function will abort and set */
//* *Error_Code to a non-zero value. */
//* */
//* */
//* Side Effects: The OS Flag for a partition may be modified. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Set_OS_Flag(Partition_Handle: ADDRESS;
OS_Flag: BYTE;
Error_Code: PCARDINAL32
); external 'lvm' name 'Set_OS_Flag';
//****************************************************************************
//
// Functions relating to Volumes
//
//***************************************************************************
//*********************************************************************/
//* */
//* Function Name: Get_Volume_Control_Data */
//* */
//* Descriptive Name: This function returns a structure containing */
//* an array of Volume_Control_Records. These */
//* records contain information about volumes */
//* which is invariant - i.e. will not change for */
//* as long as the volume exists. One of the */
//* items in the Volume_Control_Record is the */
//* handle for the volume. This handle must be */
//* used on all accesses to the volume. */
//* */
//* Input: CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: A Volume_Control_Array structure is returned. */
//* */
//* If there are no errors, then the Volume_Control_Data */
//* pointer in the Volume_Control_Array will be non-NULL, */
//* the Count field of the Volume_Control_Array will be */
//* >= 0, and *Error_Code will be 0. */
//* */
//* If an error does occur, then the Volume_Control_Data */
//* pointer in the the Volume_Control_Array will be NULL, */
//* the Count field of the Volume_Control_Array will be 0, */
//* and *Error_Code will be > 0. */
//* */
//* Error Handling: If an error occurs, then any memory allocated by*/
//* this function will be freed. */
//* */
//* Side Effects: Memory for the returned array is allocated. */
//* */
//* Notes: The caller becomes responsible for the memory allocated */
//* for the array of Volume_Control_Records pointed to by */
//* Volume_Control_Data pointer in the Volume_Control_Array */
//* structure returned by this function. The caller should */
//* free this memory when they are done using it. */
//* */
//*********************************************************************/
function Get_Volume_Control_Data(Error_Code: PCARDINAL32): Volume_Control_Array; external 'lvm' name 'Get_Volume_Control_Data';
//*********************************************************************/
//* */
//* Function Name: Get_Volume_Information */
//* */
//* Descriptive Name: This function returns the */
//* Volume_Information_Record for the volume */
//* associated with Volume_Handle. */
//* */
//* Input: ADDRESS Volume_Handle - The handle of the volume about */
//* which information is desired. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: This function returns a Volume_Information_Record. */
//* */
//* If this function is successful, then *Error_Code will be*/
//* 0. */
//* */
//* If this function fails, then *Error_Code will be > 0. */
//* */
//* Error Handling: If Volume_Handle is not a valid handle, a trap */
//* will be likely. If Volume_Handle is a drive or*/
//* partition handle, *Error_Code will be > 0. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
function Get_Volume_Information(Volume_Handle: ADDRESS; Error_Code: PCARDINAL32): Volume_Information_Record; external 'lvm' name 'Get_Volume_Information';
//*********************************************************************/
//* */
//* Function Name: Create_Volume */
//* */
//* Descriptive Name: This function creates a volume from a list of*/
//* partitions. The partitions are specified by */
//* their corresponding handles. */
//* */
//* Input: char Name[] - The name to assign to the newly */
//* created volume. */
//* BOOLEAN Create_LVM_Volume - If TRUE, then an LVM */
//* volume is created, */
//* otherwise a */
//* compatibility volume is */
//* created. */
//* BOOLEAN Bootable - If TRUE, the volume will not be */
//* created unless OS/2 can be booted*/
//* from it. */
//* char Drive_Letter_Preference - This is the drive */
//* letter to use for */
//* accessing the */
//* newly created */
//* volume. */
//* CARDINAL32 FeaturesToUse - This is currently reserved */
//* for future use and should */
//* always be set to 0. */
//* CARDINAL32 Partition_Count - The number of partitions */
//* to link together to form */
//* the volume being created. */
//* ADDRESS Partition_Handles[] - An array of partition */
//* handles with one entry*/
//* for each partition */
//* that is to become part*/
//* of the volume being */
//* created. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if the volume was created. */
//* *Error_Code will be > 0 if the volume could not be */
//* created. */
//* */
//* Error Handling: If any of the handles in the partition handles */
//* array is not valid, then a trap is likely. If */
//* Partition_Count is greater than the number of */
//* entries in the partition handles array, then a */
//* trap is likely. If any of the handles in the */
//* partition array are not partition handles, then */
//* *Error_Code will be > 0. If the volume can NOT */
//* be created, then *Error_Code will be > 0 and any*/
//* memory allocated by this function will be freed.*/
//* If the volume can NOT be created, then the */
//* existing partition/volume structure of the disk */
//* will be unchanged. */
//* */
//* Side Effects: A volume may be created. */
//* */
//* Notes: This function provides limited compatibility for */
//* programs written to use the LVM Version 1 interface. */
//* Specifically, this function will only allow the */
//* creation of compatibility volumes. Any attempt to */
//* create an LVM volume will result in an error code being */
//* returned. */
//* */
//*********************************************************************/
type
TVolumeName=Array[0..VOLUME_NAME_SIZE-1] of char;
procedure Create_Volume(Name: TVolumeName;
Create_LVM_Volume: BOOLEAN;
Bootable: BOOLEAN;
Drive_Letter_Preference: char;
FeaturesToUse: CARDINAL32;
Partition_Count: CARDINAL32;
Partition_Handles: Array of ADDRESS;
Error_Code: PCARDINAL32
); external 'lvm' name 'Create_Volume';
//*********************************************************************/
//* */
//* Function Name: Create_Volume2 */
//* */
//* Descriptive Name: This function creates a volume from a list of*/
//* partitions. The partitions are specified by */
//* their corresponding handles. */
//* */
//* Input: char Name[] - The name to assign to the newly */
//* created volume. */
//* BOOLEAN Create_LVM_Volume - If TRUE, then an LVM */
//* volume is created, */
//* otherwise a */
//* compatibility volume is */
//* created. */
//* BOOLEAN Bootable - If TRUE, the volume will not be */
//* created unless OS/2 can be booted*/
//* from it. */
//* char Drive_Letter_Preference - This is the drive */
//* letter to use for */
//* accessing the */
//* newly created */
//* volume. */
//* CARDINAL32 Feature_Count - The number of features to */
//* install on the volume being */
//* created. This field is */
//* ignored if Create_LVM_Volume*/
//* is FALSE. */
//* LVM_Feature_Specification_Record FeaturesToUse[] - An */
//* array of feature IDs and */
//* their associated LVM */
//* classes used to designate */
//* which features to install */
//* on the volume being */
//* created and the order in */
//* which to install them. */
//* This field is ignored if */
//* Create_LVM_Volume is */
//* FALSE. */
//* CARDINAL32 Partition_Count - The number of partitions */
//* to link together to form */
//* the volume being created. */
//* ADDRESS Partition_Handles[] - An array of partition */
//* handles with one entry*/
//* for each partition */
//* that is to become part*/
//* of the volume being */
//* created. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if the volume was created. */
//* *Error_Code will be > 0 if the volume could not be */
//* created. */
//* */
//* Error Handling: If any of the handles in the partition handles */
//* array is not valid, then a trap is likely. If */
//* Partition_Count is greater than the number of */
//* entries in the partition handles array, then a */
//* trap is likely. If any of the handles in the */
//* partition array are not partition handles, then */
//* *Error_Code will be > 0. If the volume can NOT */
//* be created, then *Error_Code will be > 0 and any*/
//* memory allocated by this function will be freed.*/
//* If the volume can NOT be created, then the */
//* existing partition/volume structure of the disk */
//* will be unchanged. */
//* */
//* Side Effects: A volume may be created. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
{$ifdef lvm2}
void _System Create_Volume2( char Name[VOLUME_NAME_SIZE],
BOOLEAN Create_LVM_Volume,
BOOLEAN Bootable,
char Drive_Letter_Preference,
CARDINAL32 Feature_Count,
LVM_Feature_Specification_Record FeaturesToUse[],
CARDINAL32 Partition_Count,
ADDRESS Partition_Handles[],
CARDINAL32 * Error_Code
);
{$endif}
//*********************************************************************/
//* */
//* Function Name: Delete_Volume */
//* */
//* Descriptive Name: Deletes the volume specified by Volume_Handle.*/
//* */
//* Input: ADDRESS Volume_Handle - The handle of the volume to */
//* delete. All partitions which are*/
//* part of the specified volume will*/
//* be deleted also. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if the volume and its partitions */
//* are successfully deleted. Otherwise, *Error_Code will */
//* be > 0. */
//* */
//* Error Handling: *Error_Code will be > 0 if an error occurs. If */
//* the volume or any of its partitions can not be */
//* deleted, then any changes made by this function */
//* will be undone. */
//* */
//* If Volume_Handle is not a valid handle, a trap */
//* may result. */
//* */
//* If Volume_Handle is a partition or drive handle,*/
//* then this function will abort and set */
//* *Error_Code to a non-zero value. */
//* */
//* Side Effects: A volume and its partitions may be deleted. */
//* System memory may be freed as the internal */
//* structures used to track the deleted volume */
//* are no longer required. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Delete_Volume(Volume_Handle: ADDRESS; Error_Code: PCARDINAL32); external 'lvm' name 'Delete_Volume';
//*********************************************************************/
//* */
//* Function Name: Hide_Volume */
//* */
//* Descriptive Name: Hide volume "hides" a volume from OS/2 by */
//* removing its drive letter assignment. Without*/
//* a drive letter assignment, OS/2 can not access*/
//* (or "see") the volume. */
//* */
//* Input: ADDRESS Volume_Handle - The handle of the volume to hide.*/
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if the volume was successfully */
//* hidden. If the volume could not be hidden, then */
//* *Error_Code will be > 0. */
//* */
//* Error Handling: *Error_Code will be > 0 if the volume can not be*/
//* hidden. If the volume can not be hidden, then */
//* nothing will be altered. */
//* */
//* If Volume_Handle is not a valid handle, a trap */
//* may result. */
//* */
//* If Volume_Handle is a partition or drive handle,*/
//* then this function will abort and set */
//* *Error_Code to a non-zero value. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Hide_Volume(Volume_Handle: ADDRESS; Error_Code: PCARDINAL32); external 'lvm' name 'Hide_Volume';
//*********************************************************************/
//* */
//* Function Name: Expand_Volume */
//* */
//* Descriptive Name: This function expands an existing volume by */
//* linking additional partitions to it. */
//* */
//* Input: ADDRESS Volume_Handle - The handle of the volume to be */
//* expanded. */
//* CARDINAL32 Partition_Count - The number of partitions or */
//* volumes to be added to the */
//* volume being expanded. */
//* ADDRESS Partition_Handles[] - An array of handles. Each */
//* handle in the array is the */
//* handle of a partition */
//* which is to be added to */
//* the volume being expanded. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if the volume is successfully */
//* expanded. If the volume can not be expanded, */
//* *Error_Code will be > 0. */
//* */
//* Error Handling: If the volume can not be expanded, the state of */
//* the volume is unchanged and any memory allocated*/
//* by this function is freed. */
//* */
//* If Volume_Handle is not a valid handle, a trap */
//* may result. */
//* */
//* If Volume_Handle is a partition or drive handle,*/
//* then this function will abort and set */
//* *Error_Code to a non-zero value. */
//* */
//* If any of the partition handles in the */
//* Partition_handles array are not valid handles, */
//* then a trap may result. */
//* */
//* If any of the partition handles in the */
//* Partition_Handles array are actually drive */
//* handles, then this function will abort and */
//* set *Error_Code to a non-zero value. */
//* */
//* If Partition_Count is greater than the number of*/
//* entries in the Partition_Handles array, a trap */
//* may result. */
//* */
//* Side Effects: A volume may be expanded. If the volume is */
//* expanded using another volume, the partitions */
//* on the second volume will be linked to those of */
//* the first volume and all data on the second */
//* volume will be lost. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Expand_Volume(Volume_Handle: ADDRESS;
Partition_Count: CARDINAL32;
Partition_Handles: Array of ADDRESS;
Error_Code: PCARDINAL32
); external 'lvm' name 'Expand_Volume';
//*********************************************************************/
//* */
//* Function Name: Assign_Drive_Letter */
//* */
//* Descriptive Name: Assigns a drive letter to a volume. */
//* */
//* Input: ADDRESS Volume_Handle - The handle of the volume which */
//* is to have its assigned drive */
//* letter changed. */
//* char New_Drive_Preference - The new drive letter to */
//* assign to the volume. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if the drive letter was assigned */
//* successfully; otherwise *Error_Code will be > 0. */
//* */
//* Error Handling: If the drive letter assignment can not be made, */
//* the volume will not be altered. */
//* */
//* If Volume_Handle is not a valid handle, a trap */
//* may result. */
//* */
//* If Volume_Handle is a partition or drive handle,*/
//* then this function will abort and set */
//* *Error_Code to a non-zero value. */
//* */
//* Side Effects: A volume may have its drive letter assignment */
//* changed. */
//* */
//* Notes: If the drive letter being assigned is already in use by */
//* volume which does not lie on removable media, then the */
//* drive assignment will NOT be made. */
//* */
//*********************************************************************/
procedure Assign_Drive_Letter(Volume_Handle: ADDRESS;
New_Drive_Preference: char;
Error_Code: PCARDINAL32
); external 'lvm' name 'Assign_Drive_Letter';
//*********************************************************************/
//* */
//* Function Name: Set_Installable */
//* */
//* Descriptive Name: Marks a volume as being the volume to install */
//* OS/2 on. */
//* */
//* Input: ADDRESS Volume_Handle - The handle of the volume to which*/
//* OS/2 should be installed. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: If the volume is successfully marked as installable, */
//* *Error_Code will be 0; otherwise *Error_Code will */
//* be > 0. */
//* */
//* Error Handling: If Volume_Handle is not a valid handle, a trap */
//* may result. */
//* */
//* If Volume_Handle is a partition or drive handle,*/
//* then this function will abort and set */
//* *Error_Code to a non-zero value. */
//* */
//* Side Effects: The specified volume may be marked as */
//* installable. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Set_Installable(Volume_Handle: ADDRESS; Error_Code: PCARDINAL32); external 'lvm' name 'Set_Installable';
//*********************************************************************/
//* */
//* Function Name: Get_Installable_Volume */
//* */
//* Descriptive Name: Marks a volume as being the volume to install */
//* OS/2 on. */
//* */
//* Input: CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: If a volume is mared installable, its information will */
//* be returned and *Error_Code will be LVM_ENGINE_NO_ERROR.*/
//* If there is no volume marked installable, then */
//* *Error_Code will be > 0. */
//* */
//* Error Handling: An error code is returned if there is an error. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
function Get_Installable_Volume(Error_Code: PCARDINAL32): Volume_Information_Record; external 'lvm' name 'Get_Installable_Volume';
//*********************************************************************/
//* */
//* Function Name: Convert_Volumes_To_V1 */
//* */
//* Descriptive Name: This function attempts to convert all LVM */
//* volumes in the system into a format that can */
//* be used by LVM Version 1, which was shipped */
//* with Warp Server for e-business. This */
//* function returns a bitmap of the drive letters*/
//* corresponding to Volumes that can not be */
//* converted. */
//* */
//* Input: BOOLEAN * Hidden_Volume_Conversion_Failure - The address */
//* of a BOOLEAN variable in which */
//* to store a flag indicating if */
//* there were hidden volumes that */
//* could not be converted. If */
//* *Hidden_Volume_Conversion_Failure */
//* is TRUE, then there were hidden */
//* volumes that could not be */
//* converted. If FALSE, then there */
//* were no hidden volumes, or the */
//* hidden volumes that existed were */
//* converted successfully. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: This function returns a bitmap of the drive letters */
//* corresponding to volumes that could not be converted to */
//* LVM Version 1 format. If this function is successful */
//* and all volumes were converted, then *Error_Code will be*/
//* set to LVM_ENGINE_NO_ERROR and the bitmap returned will */
//* have no bits set. If this function failes, *Error_Code */
//* will contain a non-zero error code and the bitmap */
//* returned by this function may be non-zero. */
//* */
//* Error Handling: If an error occurs, *Error_Code will be > 0. */
//* */
//* Side Effects: All LVM volumes that can be converted to LVM */
//* Version 1 format will be. */
//* */
//* Notes: Bit 0 in the bitmap returned by this function represents*/
//* drive letter 'A'. */
//* */
//*********************************************************************/
{$ifdef lvm2}
CARDINAL32 _System Convert_Volumes_To_V1 ( BOOLEAN * Hidden_Volume_Conversion_Failure,
CARDINAL32 * Error_Code ) ;
{$endif}
//***************************************************************************
//
// Functions relating to Partitions, Drives, and Volumes.
//
//***************************************************************************
//*********************************************************************/
//* */
//* Function Name: Set_Name */
//* */
//* Descriptive Name: Sets the name of a volume, drive, or partition*/
//* */
//* Input: ADDRESS Handle - The handle of the drive, partition, or */
//* volume which is to have its name set. */
//* char New_Name[] - The new name for the drive/partition/ */
//* volume. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if the name is set as specified. */
//* If the name can not be set, *Error_Code will be > 0. */
//* */
//* Error Handling: If the name can not be set, then drive/volume/ */
//* partition is not modified. */
//* */
//* If Handle is not a valid handle, a trap may */
//* result. */
//* */
//* Side Effects: A drive/volume/partition may have its name set. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Set_Name(Handle: ADDRESS;
New_Name: Array of char;
Error_Code: PCARDINAL32
); external 'lvm' name 'Set_Name';
//*********************************************************************/
//* */
//* Function Name: Set_Startable */
//* */
//* Descriptive Name: Sets the specified volume or partition */
//* startable. If a volume is specified, it must */
//* be a compatibility volume whose partition is */
//* a primary partition on the first drive. If a */
//* partition is specified, it must be a primary */
//* partition on the first drive in the system. */
//* */
//* Input: ADDRESS Handle - The handle of the partition or volume */
//* which is to be set startable. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if the specified volume or */
//* partition was set startable. */
//* If the name can not be set, *Error_Code will be > 0. */
//* */
//* Error Handling: If the volume or partition could not be set */
//* startable, then nothing in the system is */
//* changed. */
//* */
//* If Handle is not a valid handle, a trap may */
//* result. */
//* */
//* Side Effects: Any other partition or volume which is marked */
//* startable will have its startable flag cleared. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Set_Startable(Handle: ADDRESS;
Error_Code: PCARDINAL32
); external 'lvm' name 'Set_Startable';
//*********************************************************************/
//* */
//* Function Name: Get_Valid_Options */
//* */
//* Descriptive Name: Returns a bitmap where each bit in the bitmap */
//* corresponds to a possible operation that the */
//* LVM Engine can perform. Those bits which are */
//* 1 represent operations which can be performed */
//* on the item specified by Handle. Those bits */
//* which are 0 are not allowed on the item */
//* specified by Handle. */
//* */
//* Input: ADDRESS Handle - This is any valid drive, volume, or */
//* partition handle. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: A bitmap indicating which operations are valid on the */
//* item specified by Handle. */
//* */
//* If no errors occur, *Error_Code will be 0, otherwise */
//* *Error_Code will be > 0. */
//* */
//* Error Handling: If Handle is not valid, a trap will be likely. */
//* */
//* Side Effects: None. */
//* */
//* Notes: The values of the various bits in the bitmap returned */
//* by this function are defined near the beginning of this */
//* file, immediately after all of the structure */
//* definitions. */
//* */
//*********************************************************************/
function Get_Valid_Options(Handle: ADDRESS; Error_Code: PCARDINAL32): CARDINAL32; external 'lvm' name 'Get_Valid_Options';
//*********************************************************************/
//* */
//* Function Name: Get_Child_Handles */
//* */
//* Descriptive Name: Given the handle of a volume or aggregate, */
//* this function will return the handles of the */
//* children of the volume or aggregate. This */
//* allows the entire tree representation of a */
//* volume to be traversed, a level at a time. */
//* */
//* Input: ADDRESS Handle - The handle of the volume or aggregate */
//* whose children are required. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code */
//* should an error occur. */
//* */
//* Output: If successful, an LVM_Handle_Array_Record is returned */
//* with a non-zero Count. Also, *Error_Code will be set */
//* to LVM_ENGINE_NO_ERROR. If an error occurs, then */
//* the Count field will be 0 and *Error_Code will contain */
//* a non-zero error code. */
//* */
//* Error Handling: If Handle is not a valid handle, then a trap is */
//* likely. If Handle is the handle of partition, */
//* then *Error_Code will be set to */
//* LVM_ENGINE_NO_CHILDREN. If Handle is not a */
//* volume or aggregate handle, then *Error_Code */
//* will be set to LVM_ENGINE_BAD_HANDLE. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
{$ifdef lvm2}
LVM_Handle_Array_Record _System Get_Child_Handles( ADDRESS Handle, CARDINAL32 * Error_Code);
{$endif}
//*********************************************************************/
//* */
//* Function Name: Get_Parent_Handle */
//* */
//* Descriptive Name: Given the handle of a partition or aggregate, */
//* this function will return the handle of the */
//* parent of the partition or aggregate. */
//* */
//* Input: ADDRESS Handle - The handle of the partition or aggregate*/
//* whose parent is required. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code */
//* should an error occur. */
//* */
//* Output: If successful, the handle of the parent is returned */
//* as the function result and *Error_Code will be set to */
//* LVM_ENGINE_NO_ERROR. */
//* If an error occurs, then NULL will be the function */
//* result and *Error_Code will contain a non-zero error */
//* code. */
//* */
//* Error Handling: If Handle is not a valid handle, then a trap is */
//* likely. If Handle is the handle of volume, */
//* then *Error_Code will be set to */
//* LVM_ENGINE_NO_PARENT. If Handle is not the */
//* handle of a volume, partition, or aggregate */
//* then *Error_Code will be set to */
//* LVM_ENGINE_BAD_HANDLE. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
{$ifdef lvm2}
ADDRESS _System Get_Parent_Handle( ADDRESS Handle, CARDINAL32 * Error_Code);
{$endif}
//*********************************************************************/
//* */
//* Function Name: Get_Features */
//* */
//* Descriptive Name: Returns the feature ID information for each of*/
//* the features that are installed on the */
//* item specified by Handle. */
//* */
//* Input: ADDRESS Handle - The handle of the object to use. */
//* */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code */
//* should an error occur. */
//* */
//* Output: If successful, a Feature_Information_Array structure is */
//* returned with a non-zero Count. Also, *Error_Code will */
//* be set to LVM_ENGINE_NO_ERROR. If an error occurs, */
//* then the Count field in the structure will be 0 and */
//* ( *Error_Code) will contain a non-zero error code. */
//* */
//* Error Handling: If Handle is not a valid handle, a trap */
//* will be likely. */
//* */
//* Side Effects: Memory is allocated using the LVM Engine's memory*/
//* manager for the array of Feature_ID_Data items */
//* being returned. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
{$ifdef lvm2}
Feature_Information_Array _System Get_Features( ADDRESS Handle, CARDINAL32 * Error_Code );
{$endif}
//***************************************************************************
//
// Functions relating to Boot Manager
//
//***************************************************************************
//*********************************************************************/
//* */
//* Function Name: Boot_Manager_Is_Installed */
//* */
//* Descriptive Name: Indicates whether or not Boot Manager is */
//* installed on the first or second hard drives */
//* in the system. */
//* */
//* Input: BOOLEAN * Active - *Active is set to TRUE if LVM found an*/
//* active copy of Boot Manager on the */
//* system. If LVM could not find an */
//* active copy of Boot Manager on the */
//* system, but did find an inactive copy */
//* of Boot Manager, then *Active will be */
//* set to FALSE. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: TRUE is returned if Boot Manager is found. If this */
//* copy of Boot Manager is Active, then *Active will be set*/
//* to TRUE. If the copy of Boot Manager is not currently */
//* active, then *Active will be set to FALSE. */
//* */
//* FALSE is returned if Boot Manager is not found or if an */
//* error occurs. In this case, *Active is undefined. */
//* */
//* *Error_Code will be 0 if no errors occur; otherwise it */
//* will be > 0. */
//* */
//* Error Handling: If an error occurs, *Error_Code will be > 0. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
type
PBOOLEAN=^BOOLEAN;
function Boot_Manager_Is_Installed(Active: PBOOLEAN; Error_Code: PCARDINAL32): BOOLEAN; external 'lvm' name 'Boot_Manager_Is_Installed';
//*********************************************************************/
//* */
//* Function Name: Get_Boot_Manager_Handle */
//* */
//* Descriptive Name: Returns the handle of the partition containing*/
//* Boot Manager. */
//* */
//* Input: CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: If Boot Manager is NOT installed, NULL is returned. */
//* If Boot Manager is installed, whether it is active or */
//* not, the handle of the partition it resides in is */
//* returned. */
//* */
//* Error Handling: If an error occurs, *Error_Code will be > 0. */
//* */
//* Side Effects: None. */
//* */
//* Notes: */
//* */
//*********************************************************************/
function Get_Boot_Manager_Handle(Error_Code: PCARDINAL32): ADDRESS; external 'lvm' name 'Get_Boot_Manager_Handle';
//*********************************************************************/
//* */
//* Function Name: Add_To_Boot_Manager */
//* */
//* Descriptive Name: Adds the volume/partition to the Boot Manager */
//* menu. */
//* */
//* Input: ADDRESS Handle - The handle of a partition or volume that*/
//* is to be added to the Boot Manager menu.*/
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if the partition or volume was */
//* successfully added to the Boot Manager menu; otherwise */
//* *Error_Code will be > 0. */
//* */
//* Error Handling: If the partition/volume can not be added to the */
//* Boot Manager menu, no action is taken and */
//* *Error_Code will contain a non-zero error code. */
//* */
//* If Handle is not a valid handle, a trap may */
//* result. */
//* */
//* If Handle represents a drive, then this function*/
//* will abort and set *Error_Code to a non-zero */
//* value. */
//* */
//* Side Effects: The Boot Manager menu may be altered. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Add_To_Boot_Manager(Handle: ADDRESS; Error_Code: PCARDINAL32); external 'lvm' name 'Add_To_Boot_Manager';
//*********************************************************************/
//* */
//* Function Name: Remove_From_Boot_Manager */
//* */
//* Descriptive Name: Removes the specified partition or volume */
//* from the Boot Manager menu. */
//* */
//* Input: CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* */
//* Output: *Error_Code will be 0 if the partition or volume was */
//* successfully removed to the Boot Manager menu; */
//* otherwise *Error_Code will be > 0. */
//* */
//* Error Handling: If Handle is not a valid handle, a trap may */
//* result. */
//* */
//* If Handle represents a drive, or if Handle */
//* represents a volume or partition which is NOT on*/
//* the boot manager menu, then this function */
//* will abort and set *Error_Code to a non-zero */
//* value. */
//* */
//* Side Effects: The Boot Manager menu may be altered. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Remove_From_Boot_Manager(Handle: ADDRESS; Error_Code: PCARDINAL32); external 'lvm' name 'Remove_From_Boot_Manager';
//*********************************************************************/
//* */
//* Function Name: Get_Boot_Manager_Menu */
//* */
//* Descriptive Name: Returns an array containing the handles of the*/
//* partitions and volumes appearing on the */
//* Boot Manager menu. */
//* */
//* Input: CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: The function returns a Boot_Manager_Menu structure. */
//* This structure contains two items: a pointer to an array*/
//* of Boot_Manager_Menu_Items and a count of how many items*/
//* are in the array. Each Boot_Manager_Menu_Item contains */
//* a handle and a BOOLEAN variable to indicate whether the */
//* handle is for a partition or a volume. */
//* */
//* If this function is successful, then *Error_Code will */
//* be 0. */
//* */
//* If an error occurs, the Count field in the */
//* Boot_Manager_Menu will be 0 and the corresponding */
//* pointer will be NULL. *Error_Code will be > 0. */
//* */
//* Error Handling: If an error occurs, *Error_Code will be > 0. */
//* any memory allocated by this function will be */
//* freed. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
function Get_Boot_Manager_Menu(Error_Code: PCARDINAL32): Boot_Manager_Menu; external 'lvm' name 'Get_Boot_Manager_Menu';
//*********************************************************************/
//* */
//* Function Name: Install_Boot_Manager */
//* */
//* Descriptive Name: This function installs Boot Manager. It can */
//* be used to replace an existing Boot Manager */
//* as well. */
//* */
//* Input: CARDINAL32 Drive_Number - The number of the drive to */
//* install Boot Manager on. Must*/
//* be 1 or 2. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: If this function is successful, then *Error_Code will be*/
//* 0; otherwise it will be > 0. */
//* */
//* Error Handling: If an error occurs, *Error_Code will be set to a*/
//* non-zero value. Depending upon the error, it */
//* is possible that the Boot Manager partition can */
//* be left in an unusuable state (such as for a */
//* write error). */
//* */
//* Side Effects: Boot Manager may be installed on drive 1 or 2. */
//* The MBR for drive 1 may be altered. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
// Only drives 0 and 1 are acceptable.
procedure Install_Boot_Manager(Drive_Number: CARDINAL32; Error_Code: PCARDINAL32); external 'lvm' name 'Install_Boot_Manager';
//*********************************************************************/
//* */
//* Function Name: Remove_Boot_Manager */
//* */
//* Descriptive Name: Removes Boot Manager from the system. */
//* */
//* Input: CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if Boot Manager was successfully */
//* removed from the system; otherwise *Error_Code will */
//* be 0. */
//* */
//* Error Handling: If an error occurs, *Error_Code will be > 0. */
//* */
//* Side Effects: Boot Manager will be removed from the system. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Remove_Boot_Manager(Error_Code: PCARDINAL32); external 'lvm' name 'Remove_Boot_Manager';
//*********************************************************************/
//* */
//* Function Name: Set_Boot_Manager_Options */
//* */
//* Descriptive Name: Sets the Boot Managers Options. The options */
//* that can be set are: whether or not the time- */
//* out timer is active, how long the timer-out */
//* is, the partition to boot by default, and */
//* whether or not Boot Manager should display its*/
//* menu using default mode or advanced mode. */
//* */
//* Input: ADDRESS Handle - The handle of the partition or volume */
//* to boot if the time-out timer is active */
//* and the time-out value is reached. */
//* BOOLEAN Timer_Active - If TRUE, then the time-out timer */
//* is active. */
//* CARDINAL32 Time_Out_Value - If the time-out timer is */
//* active, this is the time-out */
//* value, in seconds. */
//* BOOLEAN Advanced_Mode - If TRUE, then Boot Manager will */
//* operate in advanced mode. If */
//* FALSE, then normal mode will be */
//* in effect. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if no errors occur. If an error */
//* does occur, then *Error_Code will be > 0. */
//* */
//* Error Handling: If an error occurs, no changes will be made to */
//* Boot Manager and *Error_Code will be set a */
//* non-zero error code. */
//* */
//* Side Effects: Boot Manager may be modified. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Set_Boot_Manager_Options(Handle: ADDRESS;
Timer_Active: BOOLEAN;
Time_Out_Value: CARDINAL32;
Advanced_Mode: BOOLEAN;
Error_Code: PCARDINAL32
); external 'lvm' name 'Set_Boot_Manager_Options';
//*********************************************************************/
//* */
//* Function Name: Get_Boot_Manager_Options */
//* */
//* Descriptive Name: This function returns the current Boot Manager*/
//* settings for the various Boot Manager options.*/
//* */
//* Input: ADDRESS * Handle - The handle for the default boot volume*/
//* or partition. */
//* BOOLEAN * Handle_Is_Volume - If TRUE, then Handle */
//* represents a volume. If */
//* FALSE, then Handle */
//* represents a partition. */
//* BOOLEAN * Timer_Active - If TRUE, then the time-out timer*/
//* is active. If FALSE, then the */
//* time-out timer is not active. */
//* CARDINAL32 * Time_Out_Value - If the time-out timer is */
//* active, then this is the */
//* number of seconds that Boot*/
//* Manager will wait for user */
//* input before booting the */
//* default volume/partition. */
//* BOOLEAN * Advanced_Mode - If TRUE, the Boot Manager is */
//* operating in advanced mode. If*/
//* FALSE, then Boot Manager is */
//* operating in normal mode. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Handle, *Handle_Is_Volume, *Timer_Active, */
//* *Time_out_value, *Advanced_Mode, and *Error_Code are all*/
//* set by this function. If there are no errors, then */
//* *Error_Code will be set to 0. If any errors occur, then*/
//* *Error_Code will be > 0. */
//* */
//* Error Handling: If any of the parameters are invalid, then a */
//* trap is likely. If Boot Manager is not */
//* installed, then *Error_Code will be > 0. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Get_Boot_Manager_Options(Handle: PADDRESS;
Handle_Is_Volume: PBOOLEAN;
Timer_Active: PBOOLEAN;
Time_Out_Value: PCARDINAL32;
Advanced_Mode: PBOOLEAN;
Error_Code: PCARDINAL32
); external 'lvm' name 'Get_Boot_Manager_Options';
//****************************************************************************
//
// Other Functions
//
//***************************************************************************
//*********************************************************************/
//* */
//* Function Name: Allocate_Engine_Memory */
//* */
//* Descriptive Name: Allocates a block of memory using LVM.DLL's */
//* memory management functions. */
//* */
//* Input: CARDINAL32 Size - The number of bytes of memory to */
//* allocate. */
//* */
//* Output: The address of the block of memory which was allocated, */
//* or NULL if the requested amount of memory could not be */
//* allocated. */
//* */
//* Error Handling: None. */
//* */
//* Side Effects: The specified number of bytes is allocated from */
//* the memory manager imbedded in LVM.DLL. Memory */
//* allocated by this function must be freed using */
//* Free_Engine_Memory function. The use of any */
//* memory manager to free the memory could result in*/
//* Bad Things Happening! */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
{$ifdef lvm2}
ADDRESS _System Allocate_Engine_Memory( CARDINAL32 Size );
{$endif}
//*********************************************************************/
//* */
//* Function Name: Free_Engine_Memory */
//* */
//* Descriptive Name: Frees a memory object created by LVM.DLL and */
//* returned to a user of LVM.DLL. */
//* */
//* Input: ADDRESS Object : The address of the memory object to */
//* free. This could be the */
//* Drive_Control_Data field of a */
//* Drive_Control_Record, the */
//* Partition_Array field of a */
//* Partition_Information_Array structure, */
//* or any other dynamically allocated */
//* memory object created by LVM.DLL and */
//* returned by a function in LVM.DLL. */
//* */
//* Output: None. */
//* */
//* Error Handling: None. */
//* */
//* Side Effects: None. */
//* */
//* Notes: A trap or exception could occur if a bad address is */
//* passed into this function. */
//* */
//*********************************************************************/
procedure Free_Engine_Memory(Object_: ADDRESS); external 'lvm' name 'Free_Engine_Memory';
//*********************************************************************/
//* */
//* Function Name: New_MBR */
//* */
//* Descriptive Name: This function lays down a new MBR on the */
//* specified drive. */
//* */
//* Input: ADDRESS Drive_Handle - The handle of the drive on which */
//* the new MBR is to be placed. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if the new MBR was successfully */
//* placed on the specified drive. If the operation failed */
//* for any reason, then *Error_Code will contain a non-zero*/
//* error code. */
//* */
//* Error Handling: If an error occurs, then the existing MBR is not*/
//* altered and *Error_Code will be > 0. */
//* */
//* Side Effects: A new MBR may be placed on the specified drive. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure New_MBR(Drive_Handle: ADDRESS; Error_Code: PCARDINAL32); external 'lvm' name 'New_MBR';
//*********************************************************************/
//* */
//* Function Name: Get_Available_Drive_Letters */
//* */
//* Descriptive Name: This function returns a bitmap indicating */
//* which drive letters are available for use. */
//* */
//* Input: CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: This function returns a bitmap of the available drive */
//* letters. If this function is successful, then */
//* *Error_Code will be set to 0. Otherwise, *Error_Code */
//* will be > 0 and the bitmap returned will have all bits */
//* set to 0. */
//* */
//* Error Handling: If an error occurs, *Error_Code will be > 0. */
//* */
//* Side Effects: None. */
//* */
//* Notes: A drive letter is available if it is not associated */
//* with a volume located on a disk drive controlled */
//* by OS2DASD. */
//* */
//*********************************************************************/
function Get_Available_Drive_Letters(Error_Code: PCARDINAL32): CARDINAL32; external 'lcm' name 'Get_Available_Drive_Letters';
//*********************************************************************/
//* */
//* Function Name: Get_Reserved_Drive_Letters */
//* */
//* Descriptive Name: This function returns a bitmap indicating */
//* which drive letters are reserved for use by */
//* devices NOT under the control of LVM. */
//* */
//* Input: CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: This function returns a bitmap of the drive letters */
//* which are being used by devices which are NOT controlled*/
//* by LVM. While a Volume CAN be assigned a drive letter */
//* from this list, a reboot will almost always be required */
//* in order for the assignment to take place. */
//* If this function is successful, then *Error_Code will be*/
//* set to 0. Otherwise, *Error_Code will be > 0 and the */
//* bitmap returned will have all bits set to 0. */
//* */
//* Error Handling: If an error occurs, *Error_Code will be > 0. */
//* */
//* Side Effects: None. */
//* */
//* Notes: Devices which are assigned drive letters but which are */
//* NOT under LVM control include: CD-ROM, Network drives, */
//* parallel port attached devices, and any DASD devices */
//* not controlled by OS2DASD. */
//* */
//*********************************************************************/
function Get_Reserved_Drive_Letters(Error_Code: CARDINAL32): CARDINAL32; external 'lvm' name 'Get_Reserved_Drive_Letters';
//*********************************************************************/
//* */
//* Function Name: Reboot_Required */
//* */
//* Descriptive Name: This function indicates whether or not any */
//* changes were made to the partitioning of the */
//* disks in the system which would require a */
//* reboot to make functional. */
//* */
//* Input: None. */
//* */
//* Output: The function return value will be TRUE if the system */
//* must be rebooted as a result of disk partitioning */
//* changes. */
//* */
//* Error Handling: None required. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
function Reboot_Required: BOOLEAN; external 'lvm' name 'Reboot_Required';
//*********************************************************************/
//* */
//* Function Name: Changes_Pending */
//* */
//* Descriptive Name: This function indicates whether or not any */
//* changes were made to the partitioning of the */
//* disks in the system which have not yet been */
//* comitted to disk. */
//* */
//* Input: None. */
//* */
//* Output: The function return value will be TRUE if there are */
//* uncomitted changes to the partitioning of one or more of*/
//* the drives in the system. */
//* */
//* Error Handling: None required. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
function Changes_Pending: BOOLEAN; external 'lvm' name 'Changes_Pending';
//*********************************************************************/
//* */
//* Function Name: Set_Reboot_Flag */
//* */
//* Descriptive Name: This function sets the Reboot Flag. The */
//* Reboot Flag is a special flag on the boot */
//* disk used by the install program to keep */
//* track of whether or not the system was just */
//* rebooted. It is used by the various phases */
//* of install. */
//* */
//* Input: BOOLEAN Reboot - The new value for the Reboot Flag. If */
//* TRUE, then the reboot flag will be set. */
//* If FALSE, then the reboot flag will be */
//* cleared. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be set to 0 if there are no errors. */
//* *Error_Code will be > 0 if an error occurs. */
//* */
//* Error Handling: If an error occurs, then the value of the Reboot*/
//* Flag will be unchanged. */
//* */
//* Side Effects: The value of the Reboot Flag may be changed. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Set_Reboot_Flag(Reboot: BOOLEAN; Error_Code: PCARDINAL32); external 'lvm' name 'Set_Reboot_Flag';
//*********************************************************************/
//* */
//* Function Name: Get_Reboot_Flag */
//* */
//* Descriptive Name: This function returns the value of the Reboot */
//* Flag. The Reboot Flag is a special flag on */
//* the boot disk used by the install program to */
//* keep track of whether or not the system was */
//* just rebooted. It is used by the various */
//* phases of install. */
//* */
//* Input: CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: The function return value will be TRUE if no errors */
//* occur and the Reboot Flag is set. *Error_Code will be */
//* 0 under these conditions. If an error occurs, the */
//* function return value will be FALSE and *Error_Code */
//* will be > 0. */
//* */
//* Error Handling: If an error occurs, *Error_Code will be > 0. */
//* The value of the reboot flag will be unchanged. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
function Get_Reboot_Flag(Error_Code: PCARDINAL32): BOOLEAN; external 'lvm' name 'Get_Reboot_Flag';
//*********************************************************************/
//* */
//* */
//* Function Name: Set_Install_Flags */
//* */
//* Descriptive Name: This function sets the value of the Install */
//* Flags. The Install Flags reside in a 32 bit */
//* field in the LVM dataspace. These flags are */
//* not used by LVM, thereby leaving Install free */
//* to use them for whatever it wants. */
//* */
//* Input: CARDINAL32 Install_Flags - The new value for the Install */
//* Flags. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be set to 0 if there are no errors. */
//* *Error_Code will be > 0 if an error occurs. */
//* */
//* Error Handling: If an error occurs, then the value of the */
//* Install Flags will be unchanged. */
//* */
//* Side Effects: The value of the Install Flags may be changed. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Set_Install_Flags(Install_Flags: CARDINAL32; Error_Code: PCARDINAL32); external 'lvm' name 'Set_Install_Flags';
//*********************************************************************/
//* */
//* Function Name: Get_Install_Flags */
//* */
//* Descriptive Name: This function returns the value of the Install*/
//* Flags. The Install Flags reside in a 32 bit */
//* field in the LVM dataspace. These flags are */
//* not used by LVM, thereby leaving Install free */
//* to use them for whatever it wants. */
//* */
//* Input: CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: The function returns the current value of the Install */
//* Flags stored in the LVM Dataspace. */
//* *Error_Code will be LVM_ENGINE_NO_ERROR if the function */
//* is successful. If an error occurs, the function will */
//* return 0 and *Error_Code will be > 0. */
//* */
//* Error Handling: If an error occurs, *Error_Code will be > 0. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
function Get_Install_Flags(Error_Code: PCARDINAL32): CARDINAL32; external 'lvm' name 'Get_Install_Flags';
//*********************************************************************/
//* */
//* Function Name: Set_Min_Install_Size */
//* */
//* Descriptive Name: This function tells the LVM Engine how big a */
//* partition/volume must be in order for it to */
//* marked installable. If this function is not */
//* used to set the minimum size for an */
//* installable partition/volume, the LVM Engine */
//* will use a default value of 300 MB. */
//* */
//* Input: CARDINAL32 Min_Sectors - The minimum size, in sectors, */
//* that a partition must be in */
//* order for it to be marked as */
//* installable. */
//* */
//* Output: None. */
//* */
//* Error Handling: None required. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Set_Min_Install_Size(Min_Sectors: CARDINAL32); external 'lvm' name 'Set_Min_Install_Size';
//*********************************************************************/
//* */
//* Function Name: Set_Free_Space_Threshold */
//* */
//* Descriptive Name: This function tells the LVM Engine not to */
//* report blocks of free space which are less */
//* than the size specified. The engine defaults */
//* to not reporting blocks of free space which */
//* are smaller than 2048 sectors (1 MB). */
//* */
//* Input: CARDINAL32 Min_Sectors - The minimum size, in sectors, */
//* that a block of free space must */
//* be in order for the LVM engine */
//* to report it. */
//* */
//* Output: None. */
//* */
//* Error Handling: None required. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Set_Free_Space_Threshold(Min_Sectors: CARDINAL32); external 'lvm' name 'Set_Free_Space_Threshold';
//*********************************************************************/
//* */
//* Function Name: Read_Sectors */
//* */
//* Descriptive Name: This function reads one or more sectors from */
//* the specified drive and places the data read */
//* in Buffer. */
//* */
//* Input: CARDINAL32 Drive_Number : The number of the hard drive to*/
//* read from. The drives in the */
//* system are numbered from 1 to */
//* n, where n is the total number */
//* of hard drives in the system. */
//* LBA Starting_Sector : The first sector to read from. */
//* CARDINAL32 Sectors_To_Read : The number of sectors to */
//* read into memory. */
//* ADDRESS Buffer : The location to put the data read into. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code. */
//* */
//* Output: If Successful, then the data read will be placed in */
//* memory starting at Buffer, and *Error will be */
//* LVM_ENGINE_NO_ERROR. */
//* If Unsuccessful, then *Error will be > 0 and the */
//* contents of memory starting at Buffer is undefined. */
//* */
//* Error Handling: *Error will be > 0 if an error occurs. */
//* */
//* Side Effects: Data may be read into memory starting at Buffer. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Read_Sectors(Drive_Number: CARDINAL32;
Starting_Sector: LBA;
Sectors_To_Read: CARDINAL32;
Buffer: ADDRESS;
Error: PCARDINAL32); external 'lvm' name 'Read_Sectors';
//*********************************************************************/
//* */
//* Function Name: Write_Sectors */
//* */
//* Descriptive Name: This function writes data from memory to one */
//* or more sectors on the specified drive. */
//* */
//* Input: CARDINAL32 Drive_Number : The number of the hard drive to*/
//* write to. The drives in the */
//* system are numbered from 1 to */
//* n, where n is the total number */
//* of hard drives in the system. */
//* LBA Starting_Sector : The first sector to write to. */
//* CARDINAL32 Sectors_To_Read : The number of sectors to */
//* be written. */
//* ADDRESS Buffer : The location of the data to be written */
//* to disk. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code. */
//* */
//* Output: If Successful, then the data at Buffer will be placed */
//* on the disk starting at the sector specified, and */
//* *Error will be LVM_ENGINE_NO_ERROR. */
//* If Unsuccessful, then *Error will be > 0 and the */
//* contents of the disk starting at sector */
//* Starting_Sector is undefined. */
//* */
//* Error Handling: *Error will be > 0 if an error occurs. */
//* */
//* Side Effects: Data may be written to disk. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Write_Sectors(Drive_Number: CARDINAL32;
Starting_Sector: LBA;
Sectors_To_Write: CARDINAL32;
Buffer: ADDRESS;
Error: PCARDINAL32); external 'lvm' name 'Write_Sectors';
//*********************************************************************/
//* */
//* Function Name: Rediscover_PRMs */
//* */
//* Descriptive Name: Causes OS2LVM and OS2DASD to check PRMs for */
//* new or changed media. */
//* */
//* Input: CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: If the Rediscover PRM operation was successful, then */
//* *Error_Code will be LVM_ENGINE_NO_ERROR. If there */
//* was an error, then *Error_Code will be > 0. */
//* */
//* Error Handling: None. */
//* */
//* Side Effects: New volumes may be discovered and assigned drive */
//* letters by OS2LVM and OS2DASD. */
//* */
//* Notes: The LVM Engine must be CLOSED when this function is */
//* called as this function is disabled while it is open! */
//* */
//*********************************************************************/
procedure Rediscover_PRMs(Error_Code: PCARDINAL32); external 'lvm' name 'Rediscover_PRMs';
//*********************************************************************/
//* */
//* Function Name: Get_LVM_View */
//* */
//* Descriptive Name: This function gets the OS2LVM data for the */
//* specified drive letter. The intent is to */
//* allow the determination of what drive letter */
//* a volume really has given the possibilities */
//* of conflict or a drive preference of '*'. */
//* */
//* Input: char IFSM_Drive_Letter : The drive letter for which the*/
//* OS2LVM data is requested. */
//* CARDINAL32 * Drive_Number : The address of a variable */
//* to hold the OS/2 drive */
//* number of the drive */
//* containing the first */
//* partition of the volume */
//* currently assigned to the */
//* requested drive letter. */
//* CARDINAL32 * Partition_LBA : The address of a variable */
//* to hold the LBA of the */
//* first partition of the */
//* volume currently assigned */
//* to the requested drive */
//* letter. */
//* char * LVM_Drive_Letter : The address of a variable to */
//* hold the drive letter that */
//* OS2LVM thinks the volume */
//* assigned to the requested */
//* drive letter should have. */
//* BYTE * UnitID : The address of a variable to hold the */
//* OS2LVM unit ID for the volume associated*/
//* with the requested drive letter. */
//* */
//* Output: The function return value will be TRUE if the function */
//* completed successfully. */
//* */
//* Error Handling: If this function fails, the specified drive */
//* letter is either not in use, or is in use by a */
//* device not controlled by OS2LVM. */
//* */
//* Side Effects: None. */
//* */
//* Notes: This function can be used with the LVM Engine open or */
//* closed. */
//* */
//*********************************************************************/
function Get_LVM_View(IFSM_Drive_Letter: char;
Drive_Number: PCARDINAL32;
Partition_LBA: PCARDINAL32;
LVM_Drive_Letter: Pchar;
UnitID: PBYTE): BOOLEAN; external 'lvm' name 'Get_LVM_View';
//*********************************************************************/
//* */
//* Function Name: Start_Logging */
//* */
//* Descriptive Name: Enables the LVM Engine logging. Once enabled,*/
//* the LVM Engine logging function will log all */
//* LVM Engine activity to the specified log file.*/
//* The data is logged in a binary format for */
//* compactness and speed. */
//* */
//* Input: char * Filename - The filename of the file to use as the */
//* log file. */
//* CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: If the logging file was successfully created, then */
//* *Error_Code will be 0. If the log file could not be */
//* created, then *Error_Code will be > 0. */
//* */
//* Error Handling: If the log file can not be created, then */
//* *Error_Code will be > 0. */
//* */
//* Side Effects: A file may be created/opened for logging of */
//* LVM Engine actions. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Start_Logging(Filename: Pchar; Error_Code: PCARDINAL32); external 'lvm' name 'Start_Logging';
//*********************************************************************/
//* */
//* Function Name: Stop_Logging */
//* */
//* Descriptive Name: This function ends LVM Engine logging and */
//* closes the log file. */
//* */
//* Input: CARDINAL32 * Error_Code - The address of a CARDINAL32 in */
//* in which to store an error code*/
//* should an error occur. */
//* */
//* Output: *Error_Code will be 0 if this function completes */
//* successfully; otherwise it will be > 0. */
//* */
//* Error Handling: If the log file is not currently opened, or if */
//* the close operation fails on the log file, then */
//* *Error_Code will be > 0. */
//* */
//* Side Effects: The log file may be closed. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
procedure Stop_Logging(Error_Code: PCARDINAL32); external 'lvm' name 'Stop_Logging';
{$ifdef lists}
(*
* Description: This module implements a simple, generic, doubly linked list.
* Data objects of any type can be placed into a linked list
* created by this module. Futhermore, data objects of different
* types may be placed into the same linked list.
*
* Notes: This linked list implementation makes use of the concept of the
* current item. In any non-empty list, one item in the list will
* be designated as the current item. When any of the following
* functions are called, they will operate upon the current item
* only: GetItem, ReplaceItem, DeleteItem, GetTag, NextItem,
* PreviousItem, GetObject, ExtractItem, and ExtractObject. The
* user of this module may set the current item through the use of
* the GoToStartOfList, GoToEndOfList, NextItem, PreviousItem,
* and GoToSpecifiedItem functions.
*
* Since a linked list created by this module may contain items
* of different types, the user will need a way to identify items
* of different types which may be in the same list. To allow users
* to do this, the concept of an item tag is used. When an item is
* added to the list, the user must enter an item tag. The item
* tag is merely some identifier that the user wishes to associate
* with the item being placed into the list. When used as intended,
* each type of data item will have a unique tag associated with it.
* This way, all data items of the same type will have the same tag
* while data items of different types will have different tags.
* Thus, by using the GetTag function, the user can get the item
* tag for the current item without having to get the item from the
* list. This allows the user to differentiate between items of
* different types which reside in the same list.
*
* This module is single threaded. If used in a multi-threaded
* environment, the user must implement appropriate access controls.
*
* When an item is inserted or appended to a list, this module
* allocates memory on the heap to hold the item and then copies
* the item to the memory that it allocated. This allows local
* variables to be safely inserted or appended to a list. However,
* it should be noted that under certain circumstances a copy of the
* entire data item will NOT be made. Specifically, if the data item
* is a structure or array containing pointers, then the data pointed
* to by the pointers will NOT be copied even though the structure or
* array is! This results from the fact that, when an item is being
* inserted or appended to a list, the user provides just an address
* and size. This module assumes that the item to inserted or append
* lies in a contiguous block of memory at the address provided by the
* user. This module has no way of knowing the structure of the data
* at the specified address, and therefore can not know about any
* embedded pointers which may lie within that block of memory.
*
* This module now employs the concept of a handle. A handle is a
* reference to a specific item in a list which allows that item to
* be made the current item in the list quickly. Example: If you
* use the GetHandle function to get a handle for the current item
* (lets call the item B1), then, regardless of where you are in the
* list (or any reodering of the items in the list), you can make item
* B1 the current item by passing its handle to the GoToSpecifiedItem
* function. Alternatively, you could operate directly on B1 using
* the other handle based functions, such as GetItem_By_Handle, for
* example. GetItem_By_Handle gets the item associated with the
* specified handle without changing which item in the list is the
* current item in the list.
*
* The functions of this module refer to user data as either items or
* objects. The difference between the two is simple, yet subtle. It
* deals with who is responsible for the memory used to hold the data.
* In the case of an item, this module is responsible for the memory
* used to hold the user data. In the case of an object, the user
* is responsible for the memory used to hold the data.
*
* What this means is that, for functions adding ITEMS to a list,
* this module will be responsible for allocating memory to hold
* the user data and then copying the user data into the memory
* that was allocated. For functions which return items, this
* module will COPY the user data from the LIST into a buffer
* specified by the user. For functions which add objects to a
* list, the user provides a pointer to a block of memory holding
* user data. This block of memory was allocated by the user, and
* becomes the "property" of this module once it has been added to
* a LIST. For functions which return objects, a pointer to the
* memory where the data is stored is returned. As long as an item/object
* is in a LIST, this module will be responsible for the memory that
* is used to store the data associated with that item. This means that
* users of this module should not call free on an object returned by this
* module as long as that object is still within a list.
*
*
*)
typedef unsigned long TAG;
typedef ADDRESS DLIST;
//*--------------------------------------------------
//* Type definitions
//--------------------------------------------------*/
typedef enum _Insertion_Modes {
InsertAtStart,
InsertBefore,
InsertAfter,
AppendToList
} Insertion_Modes;
//************************************************
//* Functions Available *
//************************************************/
//*
//* The parameter *Error is set by every function in this module. It
//* will be set to 0 to indicate success, and will be > 0 if an
//* error occurs. The following table lists the possible error codes:
//* 0 : No error.
//* 1 : Out of memory
//* 2 : Memory has been corrupted!
//* 3 : Bad List Record!
//* 4 : List Record not initialized yet!
//* 5 : List is empty!
//* 6 : Item size mismatch!
//* 7 : Bad item pointer!
//* 8 : Item has zero size!
//* 9 : Item tag mismatch!
//* 10 : Already at end of list!
//* 11 : Already at start of list!
//* 12 : Bad Handle!
//* 13 : Invalid Insertion Mode!
//*/
const
DLIST_SUCCESS = 0;
DLIST_OUT_OF_MEMORY = 1;
DLIST_CORRUPTED = 2;
DLIST_BAD = 3;
DLIST_NOT_INITIALIZED = 4;
DLIST_EMPTY = 5;
DLIST_ITEM_SIZE_WRONG = 6;
DLIST_BAD_ITEM_POINTER = 7;
DLIST_ITEM_SIZE_ZERO = 8;
DLIST_ITEM_TAG_WRONG = 9;
DLIST_END_OF_LIST =10;
DLIST_ALREADY_AT_START =11;
DLIST_BAD_HANDLE =12;
DLIST_INVALID_INSERTION_MODE =13;
///* The following code is special. It is for use with the PruneList and ForEachItem functions. Basically, these functions
//can be thought of as "searching" a list. They present each item in the list to a user supplied function which can then
//operate on the items. If the user supplied function returns a non-zero error code, ForEachItem and PruneList abort and
//return an error to the caller. This may be undesirable. If the user supplied function used with PruneList and ForEachItem
//returns the code below, PruneList/ForEachItem will abort and return DLIST_SUCCESS. This allows PruneList and ForEachItem
//to be used to search a list and terminate the search when the desired item is found without having to traverse the
//remaining items in the list. */
#define DLIST_SEARCH_COMPLETE 0xFF
#ifdef USE_POOLMAN
//*********************************************************************/
//* */
//* Function Name: CreateList */
//* */
//* Descriptive Name: This function allocates and initializes the */
//* data structures associated with a list and */
//* then returns a pointer to these structures. */
//* */
//* Input: CARDINAL32 InitialPoolSize - Each List gets a pool of */
//* link nodes. When items are */
//* added to the List, a link node*/
//* is removed from the pool. */
//* When an item is removed from */
//* the List, the link node used */
//* for that item is returned to */
//* the pool. InitialPoolSize is */
//* the number of link nodes to */
//* place in the pool when the */
//* pool is created. */
//* CARDINAL32 MaximumPoolSize - When the pool runs out of */
//* link nodes, new nodes are */
//* allocated by the pool. When */
//* these links start being */
//* returned to the pool, the pool*/
//* will grow. This parameter */
//* puts a limit on how big the */
//* pool may grow to. Once the */
//* pool reaches this size, any */
//* link nodes being returned to */
//* the pool will be deallocated. */
//* CARDINAL32 PoolIncrement - When the pool runs out of link*/
//* nodes and more are required, */
//* the pool will allocate one or */
//* more link nodes. This tells the*/
//* pool how many link nodes to */
//* allocate at one time. */
//* */
//* Output: If Success : The function return value will be non-NULL */
//* */
//* If Failure : The function return value will be NULL. */
//* */
//* Error Handling: The function will only fail if it can not */
//* allocate enough memory to create the new list */
//* and its associated pool of link nodes. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
DLIST _System CreateList(CARDINAL32 InitialPoolSize,
CARDINAL32 MaximumPoolSize,
CARDINAL32 PoolIncrement);
#else
//*********************************************************************/
//* */
//* Function Name: CreateList */
//* */
//* Descriptive Name: This function allocates and initializes the */
//* data structures associated with a list and */
//* then returns a pointer to these structures. */
//* */
//* Input: None. */
//* */
//* Output: If Success : The function return value will be non-NULL */
//* */
//* If Failure : The function return value will be NULL. */
//* */
//* Error Handling: The function will only fail if it can not */
//* allocate enough memory to create the new list. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
DLIST _System CreateList( void );
#endif
//*********************************************************************/
//* */
//* Function Name: InsertItem */
//* */
//* Descriptive Name: This function inserts an item into a DLIST. */
//* The item can be placed either before or */
//* after the current item in the DLIST. */
//* */
//* Input: DLIST ListToAddTo : The list to which the */
//* data item is to be */
//* added. */
//* CARDINAL32 ItemSize : The size of the data item, in */
//* bytes. */
//* ADDRESS ItemLocation : The address of the data */
//* to append to the list */
//* TAG ItemTag : The item tag to associate with */
//* item being appended to the list */
//* ADDRESS TargetHandle : The item in ListToAddTo which */
//* is used to determine where */
//* the item being transferred will */
//* be placed. If this is NULL, */
//* then the current item in */
//* ListToAddTo will be used. */
//* Insertion_Modes InsertMode : This indicates where, */
//* relative to the item in */
//* ListToAddTo specified by */
//* Target_Handle, the item being */
//* inserted can be placed. */
//* BOOLEAN MakeCurrent : If TRUE, the item being inserted */
//* into ListToAddTo becomes the */
//* current item in ListToAddTo. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code. */
//* */
//* Output: If the operation is successful, then *Error will be */
//* set to 0 and the function return value will be the */
//* handle for the item that was appended to the list. */
//* If the operation fails, then *Error will contain an */
//* error code and the function return value will be NULL. */
//* */
//* Error Handling: This function will fail under the following */
//* conditions: */
//* ListToAddTo does not point to a valid */
//* list */
//* ItemSize is 0 */
//* ItemLocation is NULL */
//* The memory required to hold a copy of the */
//* item can not be allocated. */
//* The memory required to create a LINK NODE */
//* can not be allocated. */
//* TargetHandle is invalid or is for an item */
//* in another list. */
//* If this routine fails, an error code is returned*/
//* and any memory allocated by this function is */
//* freed. */
//* */
//* Side Effects: None. */
//* */
//* Notes: The item to add is copied to the heap to */
//* avoid possible conflicts with the usage of */
//* local variables in functions which process */
//* DLISTs. However, a pointer to a local variable */
//* should not be appended to the DLIST. */
//* */
//* It is assumed that TargetHandle is valid, or is at least*/
//* the address of an accessible block of storage. If */
//* TargetHandle is invalid, or is not the address of an */
//* accessible block of storage, then a trap or exception */
//* may occur. */
//* */
//* It is assumed that Error contains a valid address. It */
//* is also assumed that if ItemLocation is not NULL, then */
//* it is a valid address that can be dereferenced. If */
//* these assumptions are violated, an exception or trap */
//* may occur. */
//* */
//* */
//*********************************************************************/
ADDRESS _System InsertItem ( DLIST ListToAddTo,
CARDINAL32 ItemSize,
ADDRESS ItemLocation,
TAG ItemTag,
ADDRESS TargetHandle,
Insertion_Modes Insert_Mode,
BOOLEAN MakeCurrent,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: InsertObject */
//* */
//* Descriptive Name: This function inserts an object into a DLIST.*/
//* The object can be inserted before or after */
//* the current item in the list. */
//* */
//* Input: DLIST ListToAddTo : The list to which the */
//* data object is to be */
//* inserted. */
//* CARDINAL32 ItemSize : The size of the data item, in */
//* bytes. */
//* ADDRESS ItemLocation : The address of the data */
//* to append to the list */
//* TAG ItemTag : The item tag to associate with */
//* the item being appended to the */
//* list */
//* ADDRESS TargetHandle : The item in ListToAddTo which */
//* is used to determine where */
//* the item being transferred will */
//* be placed. If this is NULL, */
//* then the current item in */
//* ListToAddTo will be used. */
//* Insertion_Modes InsertMode : This indicates where, */
//* relative to the item in */
//* ListToAddTo specified by */
//* Target_Handle, the item being */
//* inserted can be placed. */
//* BOOLEAN MakeCurrent : If TRUE, the item being inserted */
//* into ListToAddTo becomes the */
//* current item in ListToAddTo. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code. */
//* */
//* Output: If the operation is successful, then *Error will be */
//* set to 0 and the function return value will be the */
//* handle for the item that was appended to the list. */
//* If the operation fails, then *Error will contain an */
//* error code and the function return value will be NULL. */
//* */
//* Error Handling: This function will fail under the following */
//* conditions: */
//* ListToAddTo does not point to a valid */
//* list */
//* ItemSize is 0 */
//* ItemLocation is NULL */
//* The memory required for a LINK NODE can not */
//* be allocated. */
//* TargetHandle is invalid or is for an item */
//* in another list. */
//* If this routine fails, an error code is returned*/
//* and any memory allocated by this function is */
//* freed. */
//* */
//* Side Effects: None. */
//* */
//* Notes: The item to insert is NOT copied to the heap. Instead, */
//* the location of the item is stored in the list. This */
//* is the major difference between InsertObject and */
//* InsertItem. InsertItem allocates memory on the heap, */
//* copies the item to the memory it allocated, and stores */
//* the address of the memory it allocated in the list. */
//* InsertObject stores the address provided by the user. */
//* */
//* It is assumed that TargetHandle is valid, or is at least*/
//* the address of an accessible block of storage. If */
//* TargetHandle is invalid, or is not the address of an */
//* accessible block of storage, then a trap or exception */
//* may occur. */
//* */
//* It is assumed that Error contains a valid address. It */
//* is also assumed that if ItemLocation is not NULL, then */
//* it is a valid address that can be dereferenced. If */
//* these assumptions are violated, an exception or trap */
//* may occur. */
//* */
//* */
//*********************************************************************/
ADDRESS _System InsertObject ( DLIST ListToAddTo,
CARDINAL32 ItemSize,
ADDRESS ItemLocation,
TAG ItemTag,
ADDRESS TargetHandle,
Insertion_Modes Insert_Mode,
BOOLEAN MakeCurrent,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: DeleteItem */
//* */
//* Descriptive Name: This function removes the specified item from*/
//* the list and optionally frees the memory */
//* associated with it. */
//* */
//* Input: DLIST ListToDeleteFrom : The list whose current */
//* item is to be deleted. */
//* BOOLEAN FreeMemory : If TRUE, then the memory */
//* associated with the current */
//* item will be freed. If FALSE */
//* then the current item will be */
//* removed from the list but its */
//* memory will not be freed. */
//* ADDRESS Handle : The handle of the item to get. This */
//* handle must be of an item which resides*/
//* in ListToDeleteFrom, or NULL. If */
//* NULL is used, then the current item */
//* in ListToDeleteFrom will be deleted. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code. */
//* */
//* Output: If the operation is successful, then *Error will be */
//* set to 0. If the operation fails, then *Error will */
//* contain an error code. */
//* */
//* Error Handling: This function will fail if ListToDeleteFrom is */
//* not a valid list, or if ListToDeleteFrom is */
//* empty, or if Handle is invalid. */
//* If this routine fails, an error code is returned*/
//* in *Error. */
//* */
//* Side Effects: None. */
//* */
//* Notes: Items in a list can be accessed in two ways: A copy of */
//* the item can be obtained using GetItem and its related */
//* calls, or a pointer to the item can be obtained using */
//* GetObject and its related calls. If you have a copy of */
//* the data and wish to remove the item from the list, set */
//* FreeMemory to TRUE. This will remove the item from the */
//* list and deallocate the memory used to hold it. If you */
//* have a pointer to the item in the list (from one of the */
//* GetObject style functions) and wish to remove the item */
//* from the list, set FreeMemory to FALSE. This removes */
//* the item from the list without freeing its memory, so */
//* that the pointer obtained with the GetObject style */
//* functions is still useable. */
//* */
//* It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap */
//* may occur. */
//* */
//* It is assumed that Handle is valid, or is at least the */
//* address of an accessible block of storage. If Handle */
//* is invalid, or is not the address of an accessible block*/
//* of storage, then a trap or exception may occur. */
//* NOTE: For this function, NULL is considered a valid */
//* handle which refers to the current item in */
//* ListToDeleteFrom. */
//* */
//* This function does not alter which item is the current */
//* item in the list, unless the handle specified belongs */
//* to the current item in the list, in which case the */
//* item following the current item becomes the current */
//* item in the list. If there is no item following the */
//* current item in the list, then the item preceeding the */
//* current item will become the current item in the list. */
//* */
//*********************************************************************/
void _System DeleteItem (DLIST ListToDeleteFrom,
BOOLEAN FreeMemory,
ADDRESS Handle,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: DeleteAllItems */
//* */
//* Descriptive Name: This function deletes all of the items in the*/
//* specified list and optionally frees the */
//* memory associated with each item deleted. */
//* */
//* Input: DLIST ListToDeleteFrom : The list whose items */
//* are to be deleted. */
//* BOOLEAN FreeMemory : If TRUE, then the memory */
//* associated with each item in the*/
//* list will be freed. If FALSE */
//* then the each item will be */
//* removed from the list but its */
//* memory will not be freed. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code. */
//* */
//* Output: If the operation is successful, then *Error will be */
//* set to 0. If the operation fails, then *Error will */
//* contain an error code. */
//* */
//* Error Handling: This function will fail if ListToDeleteFrom is */
//* not a valid list, or if ListToDeleteFrom is */
//* empty. */
//* If this routine fails, an error code is returned*/
//* in *Error. */
//* */
//* Side Effects: None. */
//* */
//* Notes: Items in a list can be accessed in two ways: A copy of */
//* the item can be obtained using GetItem and its related */
//* calls, or a pointer to the item can be obtained using */
//* GetObject and its related calls. If you have a copy of */
//* the data and wish to remove the item from the list, set */
//* FreeMemory to TRUE. This will remove the item from the */
//* list and deallocate the memory used to hold it. If you */
//* have a pointer to the item in the list (from one of the */
//* GetObject style functions) and wish to remove the item */
//* from the list, set FreeMemory to FALSE. This removes */
//* the item from the list without freeing its memory, so */
//* that the pointer obtained with the GetObject style */
//* functions is still useable. */
//* */
//* It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap */
//* may occur. */
//* */
//*********************************************************************/
void _System DeleteAllItems (DLIST ListToDeleteFrom,
BOOLEAN FreeMemory,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: GetItem */
//* */
//* Descriptive Name: This function copies the specified item in */
//* the list to a buffer provided by the caller. */
//* */
//* Input: DLIST ListToGetItemFrom : The list whose current item */
//* is to be copied and returned */
//* to the caller. */
//* CARDINAL32 ItemSize : What the caller thinks the size of*/
//* the current item is. */
//* ADDRESS ItemLocation : This is the location of the */
//* buffer into which the current*/
//* item is to be copied. */
//* TAG ItemTag : What the caller thinks the item tag */
//* of the current item is. */
//* ADDRESS Handle : The handle of the item to get. This */
//* handle must be of an item which resides*/
//* in ListToGetItemFrom, or NULL. If */
//* NULL, then the current item in the list*/
//* will be used. */
//* BOOLEAN MakeCurrent : If TRUE, the item to get will */
//* become the current item in the */
//* list. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code. */
//* */
//* Output: If Successful : */
//* *Error will be set to 0. */
//* The buffer at ItemLocation will contain a copy of */
//* the current item from ListToGetItemFrom. */
//* If Failure : */
//* *Error will contain an error code. */
//* */
//* */
//* Error Handling: This function will fail under any of the */
//* following conditions: */
//* ListToGetItemFrom is not a valid list */
//* ItemSize does not match the size of the */
//* current item in the list */
//* ItemLocation is NULL */
//* ItemTag does not match the item tag */
//* of the current item in the list */
//* Handle is invalid, or is for an item */
//* which is not in ListToGetItemFrom */
//* If any of these conditions occur, *Error will */
//* contain a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. It */
//* is also assumed that if ItemLocation is not NULL, then */
//* it is a valid address that can be dereferenced. If */
//* these assumptions are violated, an exception or trap */
//* may occur. */
//* */
//* It is assumed that Handle is valid, or is at least the */
//* address of an accessible block of storage. If Handle */
//* is invalid, or is not the address of an accessible block*/
//* of storage, then a trap or exception may occur. */
//* NOTE: For this function, NULL is considered a valid */
//* handle corresponding to the current item in the */
//* list. */
//* */
//* This function does not alter which item is the current */
//* item in the list. */
//* */
//*********************************************************************/
void _System GetItem( DLIST ListToGetItemFrom,
CARDINAL32 ItemSize,
ADDRESS ItemLocation,
TAG ItemTag,
ADDRESS Handle,
BOOLEAN MakeCurrent,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: GetNextItem */
//* */
//* Descriptive Name: This function advances the current item */
//* pointer and then copies the current item in */
//* the list to a buffer provided by the caller. */
//* */
//* Input: DLIST ListToGetItemFrom : The list whose current item */
//* is to be copied and returned */
//* to the caller. */
//* CARDINAL32 ItemSize : What the caller thinks the size of*/
//* the current item is. */
//* ADDRESS ItemLocation : This is the location of the */
//* buffer into which the current*/
//* item is to be copied. */
//* TAG ItemTag : What the caller thinks the item tag */
//* of the current item is. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code. */
//* */
//* Output: If Successful : */
//* *Error will be set to 0. */
//* The buffer at ItemLocation will contain a copy of */
//* the current item from ListToGetItemFrom. */
//* If Failure : */
//* *Error will contain an error code. */
//* The current item pointer will NOT be advanced. */
//* The current item in the list will be the same */
//* as before the call to this function. */
//* */
//* Error Handling: This function will fail under any of the */
//* following conditions: */
//* ListToGetItemFrom is not a valid list */
//* ItemSize does not match the size of the */
//* current item in the list */
//* ItemLocation is NULL */
//* ItemTag does not match the item tag */
//* of the current item in the list */
//* The current item in the list before this */
//* function is called is the last item */
//* item in the list. */
//* If any of these conditions occur, *Error will */
//* contain a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. It */
//* is also assumed that if ItemLocation is not NULL, then */
//* it is a valid address that can be dereferenced. If */
//* these assumptions are violated, an exception or trap */
//* may occur. */
//* */
//*********************************************************************/
void _System GetNextItem( DLIST ListToGetItemFrom,
CARDINAL32 ItemSize,
ADDRESS ItemLocation,
TAG ItemTag,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: GetPreviousItem */
//* */
//* Descriptive Name: This function makes the previous item in the */
//* list the current item in the list and then */
//* copies that item to a buffer provided by the */
//* user. */
//* */
//* Input: DLIST ListToGetItemFrom : The list whose current item */
//* is to be copied and returned */
//* to the caller. */
//* CARDINAL32 ItemSize : What the caller thinks the size of*/
//* the current item is. */
//* ADDRESS ItemLocation : This is the location of the */
//* buffer into which the current*/
//* item is to be copied. */
//* TAG ItemTag : What the caller thinks the item tag */
//* of the current item is. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code. */
//* */
//* Output: If Successful : */
//* *Error will be set to 0. */
//* The buffer at ItemLocation will contain a copy of */
//* the current item from ListToGetItemFrom. */
//* If Failure : */
//* *Error will contain an error code. */
//* The current item pointer will NOT be advanced. */
//* The current item in the list will be the same */
//* as before the call to this function. */
//* */
//* Error Handling: This function will fail under any of the */
//* following conditions: */
//* ListToGetItemFrom is not a valid list */
//* ItemSize does not match the size of the */
//* current item in the list */
//* ItemLocation is NULL */
//* ItemTag does not match the item tag */
//* of the current item in the list */
//* The current item in the list before this */
//* function is called is the last item */
//* item in the list. */
//* If any of these conditions occur, *Error will */
//* contain a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. It */
//* is also assumed that if ItemLocation is not NULL, then */
//* it is a valid address that can be dereferenced. If */
//* these assumptions are violated, an exception or trap */
//* may occur. */
//* */
//*********************************************************************/
void _System GetPreviousItem( DLIST ListToGetItemFrom,
CARDINAL32 ItemSize,
ADDRESS ItemLocation,
TAG ItemTag,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: GetObject */
//* */
//* Descriptive Name: This function returns the address of the data*/
//* associated with the specified item in the */
//* list. */
//* */
//* Input: DLIST ListToGetItemFrom : The list whose current item */
//* is to have its address */
//* returned to the caller. */
//* CARDINAL32 ItemSize : What the caller thinks the size of*/
//* the current item is. */
//* TAG ItemTag : What the caller thinks the item tag */
//* of the current item is. */
//* ADDRESS Handle : The handle of the item to get. This */
//* handle must be of an item which resides*/
//* in ListToGetItemFrom, or NULL. If */
//* NULL, then the current item in the list*/
//* BOOLEAN MakeCurrent : If TRUE, the item to get will */
//* become the current item in the */
//* list. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code. */
//* */
//* Output: If Successful : */
//* *Error will be set to 0. */
//* The function return value will be the address of */
//* the data associated with the current item in the */
//* list. */
//* If Failure : */
//* *Error will contain an error code. */
//* The function return value will be NULL. */
//* */
//* Error Handling: This function will fail under any of the */
//* following conditions: */
//* ListToGetItemFrom is not a valid list */
//* ItemSize does not match the size of the */
//* current item in the list */
//* ItemTag does not match the item tag */
//* of the current item in the list */
//* Handle is invalid, or is for an item */
//* which is not in ListToGetItemFrom */
//* If any of these conditions occur, *Error will */
//* contain a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: The user should not free the memory associated with */
//* the address returned by this function as the object is */
//* still in the list. */
//* */
//* It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap may */
//* occur. */
//* */
//* It is assumed that Handle is valid, or is at least the */
//* address of an accessible block of storage. If Handle */
//* is invalid, or is not the address of an accessible block*/
//* of storage, then a trap or exception may occur. */
//* NOTE: For this function, NULL is considered a valid */
//* handle designating the current item in the list. */
//* */
//* This function does not alter which item is the current */
//* item in the list. */
//* */
//*********************************************************************/
ADDRESS _System GetObject( DLIST ListToGetItemFrom,
CARDINAL32 ItemSize,
TAG ItemTag,
ADDRESS Handle,
BOOLEAN MakeCurrent,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: GetNextObject */
//* */
//* Descriptive Name: This function advances the current item */
//* pointer and then returns the address of the */
//* data associated with the current item in the */
//* list. */
//* */
//* Input: DLIST ListToGetItemFrom : The list whose current item */
//* is to be copied and returned */
//* to the caller. */
//* CARDINAL32 ItemSize : What the caller thinks the size of*/
//* the current item is. */
//* TAG ItemTag : What the caller thinks the item tag */
//* of the current item is. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code. */
//* */
//* Output: If Successful : */
//* *Error will be set to 0. */
//* The function return value will be the address of */
//* the data associated with the current item in the */
//* list. */
//* If Failure : */
//* *Error will contain an error code. */
//* The function return value will be NULL. */
//* The current item pointer will NOT be advanced. */
//* The current item in the list will be the same */
//* as before the call to this function. */
//* */
//* Error Handling: This function will fail under any of the */
//* following conditions: */
//* ListToGetItemFrom is not a valid list */
//* ItemSize does not match the size of the */
//* current item in the list */
//* ItemTag does not match the item tag */
//* of the current item in the list */
//* The current item in the list before this */
//* function is called is the last item */
//* item in the list. */
//* If any of these conditions occur, *Error will */
//* contain a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: The user should not free the memory associated with */
//* the address returned by this function as the object is */
//* still in the list. */
//* */
//* It is assumed that Error contains a valid address. If */
//* this assumption are violated, an exception or trap may */
//* occur. */
//* */
//*********************************************************************/
ADDRESS _System GetNextObject( DLIST ListToGetItemFrom,
CARDINAL32 ItemSize,
TAG ItemTag,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: GetPreviousObject */
//* */
//* Descriptive Name: This function makes the previous item in the */
//* list the current item and then returns the */
//* address of the data associated with the */
//* current item in the list. */
//* */
//* Input: DLIST ListToGetItemFrom : The list whose current item */
//* is to be copied and returned */
//* to the caller. */
//* CARDINAL32 ItemSize : What the caller thinks the size of*/
//* the current item is. */
//* TAG ItemTag : What the caller thinks the item tag */
//* of the current item is. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code. */
//* */
//* Output: If Successful : */
//* *Error will be set to 0. */
//* The function return value will be the address of */
//* the data associated with the current item in the */
//* list. */
//* If Failure : */
//* *Error will contain an error code. */
//* The function return value will be NULL. */
//* The current item pointer will NOT be advanced. */
//* The current item in the list will be the same */
//* as before the call to this function. */
//* */
//* Error Handling: This function will fail under any of the */
//* following conditions: */
//* ListToGetItemFrom is not a valid list */
//* ItemSize does not match the size of the */
//* current item in the list */
//* ItemTag does not match the item tag */
//* of the current item in the list */
//* The current item in the list before this */
//* function is called is the last item */
//* item in the list. */
//* If any of these conditions occur, *Error will */
//* contain a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: The user should not free the memory associated with */
//* the address returned by this function as the object is */
//* still in the list. */
//* */
//* It is assumed that Error contains a valid address. If */
//* this assumption are violated, an exception or trap may */
//* occur. */
//* */
//*********************************************************************/
ADDRESS _System GetPreviousObject( DLIST ListToGetItemFrom,
CARDINAL32 ItemSize,
TAG ItemTag,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: ExtractItem */
//* */
//* Descriptive Name: This function copies the specified item in */
//* the list to a buffer provided by the caller */
//* and removes the item from the list. */
//* */
//* Input: DLIST ListToGetItemFrom : The list whose current item */
//* is to be copied and returned */
//* to the caller. */
//* CARDINAL32 ItemSize : What the caller thinks the size of*/
//* the current item is. */
//* ADDRESS ItemLocation : This is the location of the */
//* buffer into which the current*/
//* item is to be copied. */
//* TAG ItemTag : What the caller thinks the item tag */
//* of the current item is. */
//* ADDRESS Handle : The handle of the item to get. This */
//* handle must be of an item which resides*/
//* in ListToGetItemFrom, or NULL. If */
//* NULL, then the current item in the list*/
//* will be used. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code. */
//* */
//* Output: If Successful : */
//* *Error will be set to 0. */
//* The buffer at ItemLocation will contain a copy of */
//* the current item from ListToGetItemFrom. */
//* The item will have been removed from the list and */
//* its memory deallocated. */
//* If Failure : */
//* *Error will contain an error code. */
//* */
//* Error Handling: This function will fail under any of the */
//* following conditions: */
//* ListToGetItemFrom is not a valid list */
//* ItemSize does not match the size of the */
//* current item in the list */
//* ItemLocation is NULL */
//* ItemTag does not match the item tag */
//* of the current item in the list */
//* Handle is invalid, or is for an item */
//* which is not in ListToGetItemFrom */
//* If any of these conditions occur, *Error will */
//* contain a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. It */
//* is also assumed that if ItemLocation is not NULL, then */
//* it is a valid address that can be dereferenced. If */
//* these assumptions are violated, an exception or trap */
//* may occur. */
//* */
//* It is assumed that Handle is valid, or is at least the */
//* address of an accessible block of storage. If Handle */
//* is invalid, or is not the address of an accessible block*/
//* of storage, then a trap or exception may occur. */
//* NOTE: For this function, NULL is considered a valid */
//* handle which refers to the current item in the */
//* list. */
//* */
//* This function does not alter which item is the current */
//* item in the list, unless the handle specified belongs */
//* to the current item in the list, in which case the */
//* item following the current item becomes the current */
//* item in the list. If there is no item following the */
//* current item in the list, then the item preceeding the */
//* current item will become the current item in the list. */
//* */
//*********************************************************************/
void _System ExtractItem( DLIST ListToGetItemFrom,
CARDINAL32 ItemSize,
ADDRESS ItemLocation,
TAG ItemTag,
ADDRESS Handle,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: ExtractObject */
//* */
//* Descriptive Name: This function returns the address of the data*/
//* associated with the specified item in the */
//* list and then removes that item from the list*/
//* */
//* Input: DLIST ListToGetItemFrom : The list whose current item */
//* is to be copied and returned */
//* to the caller. */
//* CARDINAL32 ItemSize : What the caller thinks the size of*/
//* the current item is. */
//* TAG ItemTag : What the caller thinks the item tag */
//* of the current item is. */
//* ADDRESS Handle : The handle of the item to get. This */
//* handle must be of an item which resides*/
//* in ListToGetItemFrom, or NULL. If */
//* NULL, then the current item in the */
//* list will be used. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code. */
//* */
//* Output: If Successful : */
//* *Error will be set to 0. */
//* The function return value will be the address of */
//* the data associated with the current item in the */
//* list. */
//* The current item is removed from the list. */
//* If Failure : */
//* *Error will contain an error code. */
//* The function return value will be NULL. */
//* */
//* Error Handling: This function will fail under any of the */
//* following conditions: */
//* ListToGetItemFrom is not a valid list */
//* ItemSize does not match the size of the */
//* current item in the list */
//* ItemTag does not match the item tag */
//* of the current item in the list */
//* Handle is invalid, or is for an item */
//* which is not in ListToGetItemFrom */
//* If any of these conditions occur, *Error will */
//* contain a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: The user is responsible for the memory associated with */
//* the address returned by this function since this */
//* function removes that object from the list. This means */
//* that, when the user is through with the object, they */
//* should free it. */
//* */
//* It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap may */
//* occur. */
//* */
//* It is assumed that Handle is valid, or is at least the */
//* address of an accessible block of storage. If Handle */
//* is invalid, or is not the address of an accessible block*/
//* of storage, then a trap or exception may occur. */
//* NOTE: For this function, NULL is considered a valid */
//* handle which refers to the current item in the */
//* list. */
//* */
//* This function does not alter which item is the current */
//* item in the list, unless the handle specified belongs */
//* to the current item in the list, in which case the */
//* item following the current item becomes the current */
//* item in the list. If there is no item following the */
//* current item in the list, then the item preceeding the */
//* current item will become the current item in the list. */
//* */
//*********************************************************************/
ADDRESS _System ExtractObject( DLIST ListToGetItemFrom,
CARDINAL32 ItemSize,
TAG ItemTag,
ADDRESS Handle,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: ReplaceItem */
//* */
//* Descriptive Name: This function replaces the specified item in */
//* the list with the one provided as its */
//* argument. */
//* */
//* Input: DLIST ListToReplaceItemIn : The list whose current item*/
//* is to be replaced */
//* CARDINAL32 ItemSize : The size, in bytes, of the */
//* replacement item */
//* ADDRESS ItemLocation : The address of the replacement*/
//* item */
//* TAG ItemTag : The item tag that the user wishes to */
//* associate with the replacement item */
//* ADDRESS Handle : The handle of the item to get. This */
//* handle must be of an item which resides */
//* in ListToGetItemFrom, or NULL. If NULL */
//* then the current item in the list will */
//* used. */
//* BOOLEAN MakeCurrent : If TRUE, the item to get will */
//* become the current item in the */
//* list. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code */
//* */
//* Output: If Successful then *Error will be set to 0. */
//* If Unsuccessful, then *Error will be set to a non-zero */
//* error code. */
//* */
//* Error Handling: This function will fail under the following */
//* conditions: */
//* ListToReplaceItemIn is empty */
//* ItemSize is 0 */
//* ItemLocation is NULL */
//* The memory required can not be allocated. */
//* Handle is invalid, or is for an item */
//* which is not in ListToGetItemFrom */
//* If any of these conditions occurs, *Error */
//* will contain a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. It */
//* is also assumed that if ItemLocation is not NULL, then */
//* it is a valid address that can be dereferenced. If */
//* these assumptions are violated, an exception or trap */
//* may occur. */
//* */
//* It is assumed that Handle is valid, or is at least the */
//* address of an accessible block of storage. If Handle */
//* is invalid, or is not the address of an accessible block*/
//* of storage, then a trap or exception may occur. */
//* NOTE: For this function, NULL is a valid handle which */
//* refers to the current item in the list. */
//* */
//* This function does not alter which item is the current */
//* item in the list. */
//* */
//*********************************************************************/
void _System ReplaceItem( DLIST ListToReplaceItemIn,
CARDINAL32 ItemSize,
ADDRESS ItemLocation,
TAG ItemTag,
ADDRESS Handle,
BOOLEAN MakeCurrent,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: ReplaceObject */
//* */
//* Descriptive Name: This function replaces the specified object */
//* in the list with the one provided as its */
//* argument. */
//* */
//* Input: DLIST ListToReplaceItemIn : The list whose current */
//* object is to be replaced */
//* CARDINAL32 ItemSize : The size, in bytes, of the */
//* replacement object */
//* ADDRESS ItemLocation : The address of the replacement*/
//* item */
//* TAG ItemTag : The item tag that the user wishes to */
//* associate with the replacement item */
//* ADDRESS Handle : The handle of the item to get. This */
//* handle must be of an item which resides */
//* in ListToGetItemFrom, or NULL. If NULL */
//* then the current item in the list will */
//* be used. */
//* BOOLEAN MakeCurrent : If TRUE, the item to get will */
//* become the current item in the */
//* list. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code */
//* */
//* Output: If Successful then *Error will be set to 0 and the */
//* return value of the function will be the address */
//* of the object that was replaced. */
//* If Unsuccessful, then *Error will be set to a non-zero */
//* error code and the function return value will be */
//* NULL. */
//* */
//* Error Handling: This function will fail under the following */
//* conditions: */
//* ListToReplaceItemIn is empty */
//* ItemSize is 0 */
//* ItemLocation is NULL */
//* The memory required can not be allocated. */
//* Handle is invalid, or is for an item */
//* which is not in ListToGetItemFrom */
//* If any of these conditions occurs, *Error */
//* will contain a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: The user is responsible for the memory associated with */
//* the object returned by this function as that object is */
//* removed from the list. This means that, when the user */
//* is through with the object returned by this function, */
//* they should free it. */
//* */
//* It is assumed that Error contains a valid address. It */
//* is also assumed that if ItemLocation is not NULL, then */
//* it is a valid address that can be dereferenced. If */
//* these assumptions are violated, an exception or trap */
//* may occur. */
//* */
//* It is assumed that Handle is valid, or is at least the */
//* address of an accessible block of storage. If Handle */
//* is invalid, or is not the address of an accessible block*/
//* of storage, then a trap or exception may occur. */
//* NOTE: For this function, NULL is a valid handle for the */
//* current item in the list. */
//* */
//* This function does not alter which item is the current */
//* item in the list. */
//* */
//*********************************************************************/
ADDRESS _System ReplaceObject( DLIST ListToReplaceItemIn,
CARDINAL32 * ItemSize, /* On input - size of new object. On return = size of old object. */
ADDRESS ItemLocation,
TAG * ItemTag, /* On input - TAG of new object. On return = TAG of old object. */
ADDRESS Handle,
BOOLEAN MakeCurrent,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: GetTag */
//* */
//* Descriptive Name: This function returns the item tag associated*/
//* with the current item in the list. */
//* */
//* Input: DLIST ListToGetTagFrom : The list from which the item */
//* tag of the current item is to */
//* be returned */
//* ADDRESS Handle : The handle of the item whose TAG and */
//* size we are to get. This handle must */
//* be of an item which resides in */
//* in ListToGetTagFrom, or NULL. If NULL */
//* then the current item in the list will */
//* be used. */
//* CARDINAL32 * ItemSize : The size, in bytes, of the */
//* current item in the list. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code */
//* */
//* Output: If successful, the function returns the item tag & size*/
//* associated with the current item in ListToGetTagFrom*/
//* and *Error is set to 0. */
//* If unsuccessful, the function returns 0 and *Error is */
//* set to a non-zero error code. */
//* */
//* Error Handling: This function will fail if ListToGetTagFrom is */
//* not a valid list or is an empty list. In either*/
//* of these cases, *Error is set to a non-zero */
//* error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap */
//* may occur. */
//* */
//* */
//*********************************************************************/
TAG _System GetTag( DLIST ListToGetTagFrom,
ADDRESS Handle,
CARDINAL32 * ItemSize,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: GetHandle */
//* */
//* Descriptive Name: This function returns a handle for the */
//* current item in the list. This handle is */
//* then associated with that item regardless of */
//* its position in the list. This handle can be*/
//* used to make its associated item the current */
//* item in the list. */
//* */
//* Input: DLIST ListToGetHandleFrom : The list from which a */
//* handle is needed. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code */
//* */
//* Output: If successful, the function returns a handle for the */
//* the current item in ListToGetHandleFrom, and *Error */
//* is set to 0. */
//* If unsuccessful, the function returns 0 and *Error is */
//* set to a non-zero error code. */
//* */
//* Error Handling: This function will fail if ListToGetHandleFrom */
//* is not a valid list or is an empty list. In */
//* either of these cases, *Error is set to a */
//* non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap */
//* may occur. */
//* */
//* The handle returned is a pointer to an internal */
//* structure within the list. If the item associated */
//* with this handle is removed from the list, the handle */
//* will be invalid and should not be used as the internal */
//* structure it points to will nolonger exist! */
//* */
//*********************************************************************/
ADDRESS _System GetHandle ( DLIST ListToGetHandleFrom, CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: GetListSize */
//* */
//* Descriptive Name: This function returns the number of items in */
//* a list. */
//* */
//* Input: DLIST ListToGetSizeOf : The list whose size we wish to*/
//* know */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code */
//* */
//* Output: If successful, the function returns the a count of the */
//* number of items in the list, and *Error is set to 0.*/
//* If unsuccessful, the function returns 0 and *Error is */
//* set to a non-zero error code. */
//* */
//* Error Handling: This function will fail if ListToGetSizeOf is */
//* not a valid list. If this happens, then *Error */
//* is set to a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap */
//* may occur. */
//* */
//*********************************************************************/
CARDINAL32 _System GetListSize( DLIST ListToGetSizeOf, CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: ListEmpty */
//* */
//* Descriptive Name: This function returns TRUE if the */
//* specified list is empty, otherwise it returns*/
//* FALSE. */
//* */
//* Input: DLIST ListToCheck : The list to check to see if it*/
//* is empty */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code */
//* */
//* Output: If successful, the function returns TRUE if the */
//* number of items in the list is 0, otherwise it */
//* returns FALSE. Also, *Error is set to 0. */
//* If unsuccessful, the function returns TRUE and */
//* *Error is set to a non-zero error code. */
//* */
//* Error Handling: This function will fail if ListToCheck is not */
//* a valid list. If this happens, then *Error */
//* is set to a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap */
//* may occur. */
//* */
//*********************************************************************/
BOOLEAN _System ListEmpty( DLIST ListToCheck, CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: AtEndOfList */
//* */
//* Descriptive Name: This function returns TRUE if the */
//* current item in the list is the last item */
//* in the list. Returns FALSE otherwise. */
//* */
//* Input: DLIST ListToCheck : The list to check. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code */
//* */
//* Output: If successful, the function returns TRUE if the */
//* current item in the list is the last item in the */
//* list. If it is not the last item in the list, */
//* FALSE is returned. *Error_Code is set to */
//* DLIST_SUCCESS. */
//* If unsuccessful, the function returns FALSE and */
//* *Error is set to a non-zero error code. */
//* */
//* Error Handling: This function will fail if ListToCheck is not */
//* a valid list. If this happens, then *Error */
//* is set to a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap */
//* may occur. */
//* */
//*********************************************************************/
BOOLEAN _System AtEndOfList( DLIST ListToCheck, CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: AtStartOfList */
//* */
//* Descriptive Name: This function returns TRUE if the */
//* current item in the list is the first item */
//* in the list. Returns FALSE otherwise. */
//* */
//* Input: DLIST ListToCheck : The list to check. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code */
//* */
//* Output: If successful, the function returns TRUE if the */
//* current item in the list is the first item in the */
//* list. If it is not the first item in the list, */
//* FALSE is returned. *Error_Code is set to */
//* DLIST_SUCCESS. */
//* If unsuccessful, the function returns FALSE and */
//* *Error is set to a non-zero error code. */
//* */
//* Error Handling: This function will fail if ListToCheck is not */
//* a valid list. If this happens, then *Error */
//* is set to a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap */
//* may occur. */
//* */
//*********************************************************************/
BOOLEAN _System AtStartOfList( DLIST ListToCheck, CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: DestroyList */
//* */
//* Descriptive Name: This function releases the memory associated */
//* with the internal data structures of a DLIST.*/
//* Once a DLIST has been eliminated by this */
//* function, it must be reinitialized before it */
//* can be used again. */
//* */
//* Input: DLIST ListToDestroy : The list to be eliminated */
//* from memory. */
//* BOOLEAN FreeItemMemory : If TRUE, all items in the list */
//* will be freed. If FALSE, all */
//* items in the list are not */
//* freed, only the list structures*/
//* associated with them are. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code */
//* */
//* Output: If successful, *Error will be set to 0. */
//* If unsuccessful, *Error will be set to a non-zero error*/
//* code. */
//* */
//* Error Handling: This function will fail if ListToDestroy is not */
//* a valid list. If this happens, then *Error */
//* is set to a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap */
//* may occur. */
//* */
//* If FreeItemMemory is TRUE, then this function will try */
//* to delete any items which may be in the list. However, */
//* since this function has no way of knowing the internal */
//* structure of an item, items which contain embedded */
//* pointers will not be entirely freed. This can lead to */
//* memory leaks. The programmer should ensure that any */
//* list passed to this function when the FreeItemMemory */
//* parameter is TRUE is empty or does not contain any */
//* items with embedded pointers. */
//* */
//*********************************************************************/
void _System DestroyList( DLIST * ListToDestroy, BOOLEAN FreeItemMemory, CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: NextItem */
//* */
//* Descriptive Name: This function makes the next item in the list*/
//* the current item in the list (i.e. it */
//* advances the current item pointer). */
//* */
//* Input: DLIST ListToAdvance : The list whose current item */
//* pointer is to be advanced */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code */
//* */
//* Output: If successful, *Error will be set to 0. */
//* If unsuccessful, *Error will be set to a non-zero error*/
//* code. */
//* */
//* Error Handling: This function will fail under the following */
//* conditions: */
//* ListToAdvance is not a valid list */
//* ListToAdvance is empty */
//* The current item is the last item in the */
//* list */
//* If any of these conditions occurs, then *Error */
//* is set to a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap */
//* may occur. */
//* */
//*********************************************************************/
void _System NextItem( DLIST ListToAdvance, CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: PreviousItem */
//* */
//* Descriptive Name: This function makes the previous item in the */
//* list the current item in the list. */
//* */
//* Input: DLIST ListToChange : The list whose current item */
//* pointer is to be changed */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code */
//* */
//* Output: If successful, *Error will be set to 0. */
//* If unsuccessful, *Error will be set to a non-zero error*/
//* code. */
//* */
//* Error Handling: This function will fail under the following */
//* conditions: */
//* ListToChange is not a valid list */
//* ListToChange is empty */
//* The current item is the first item in the */
//* list */
//* If any of these conditions occurs, then *Error */
//* is set to a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap */
//* may occur. */
//* */
//*********************************************************************/
void _System PreviousItem( DLIST ListToChange, CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: GoToStartOfList */
//* */
//* Descriptive Name: This function makes the first item in the */
//* list the current item in the list. */
//* */
//* Input: DLIST ListToReset : The list whose current item */
//* is to be set to the first item */
//* in the list */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code */
//* */
//* Output: If successful, *Error will be set to 0. */
//* If unsuccessful, *Error will be set to a non-zero error*/
//* code. */
//* */
//* Error Handling: This function will fail if ListToReset is not */
//* a valid list. If this occurs, then *Error */
//* is set to a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap */
//* may occur. */
//* */
//*********************************************************************/
void _System GoToStartOfList( DLIST ListToReset, CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: GoToEndOfList */
//* */
//* Descriptive Name: This function makes the last item in the */
//* list the current item in the list. */
//* */
//* Input: DLIST ListToSet : The list whose current item */
//* is to be set to the last item */
//* in the list */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code */
//* */
//* Output: If successful, *Error will be set to 0. */
//* If unsuccessful, *Error will be set to a non-zero error*/
//* code. */
//* */
//* Error Handling: This function will fail if ListToSet is not */
//* a valid list. If this occurs, then *Error */
//* is set to a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap */
//* may occur. */
//* */
//*********************************************************************/
void _System GoToEndOfList( DLIST ListToSet, CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: GoToSpecifiedItem */
//* */
//* Descriptive Name: This function makes the item associated with */
//* Handle the current item in the list. */
//* */
//* Input: DLIST ListToReposition: The list whose current item */
//* is to be set to the item */
//* associated with Handle. */
//* ADDRESS Handle : A handle obtained by using the */
//* GetHandle function. This handle */
//* identifies a unique item in the list. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return code */
//* */
//* Output: If successful, *Error will be set to 0. */
//* If unsuccessful, *Error will be set to a non-zero error*/
//* code. */
//* */
//* Error Handling: This function will fail if ListToReposition is */
//* not a valid list. If this occurs, then *Error */
//* is set to a non-zero error code. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap */
//* may occur. */
//* */
//* */
//* It is assumed that Handle is a valid handle and that */
//* the item associated with Handle is still in the list. */
//* If these conditions are not met, an exception or trap */
//* may occur. */
//* */
//*********************************************************************/
void _System GoToSpecifiedItem( DLIST ListToReposition, ADDRESS Handle, CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: SortList */
//* */
//* Descriptive Name: This function sorts the contents of a list. */
//* The sorting algorithm used is a stable sort */
//* whose performance is not dependent upon the */
//* initial order of the items in the list. */
//* */
//* Input: DLIST ListToSort : The DLIST that is to be sorted. */
//* */
//* INTEGER32 ( *Compare) ( ... ) */
//* */
//* This is a pointer to a function that can compare any */
//* two items in the list. It should return -1 if */
//* Object1 is less than Object2, 0 if Object1 is equal */
//* to Object2, and 1 if Object1 is greater than Object2.*/
//* This function will be called during the sort whenever*/
//* the sorting algorithm needs to compare two objects. */
//* */
//* The Compare function takes the following parameters: */
//* */
//* ADDRESS Object1 : The address of the data for the */
//* first object to be compared. */
//* TAG Object1Tag : The user assigned TAG value for the */
//* first object to be compared. */
//* ADDRESS Object2 : The address of the data for the */
//* second object to be compared. */
//* TAG Object2Tag : The user assigned TAG value for the */
//* second object to be compared. */
//* CARDINAL32 * Error : The address of a variable to */
//* hold the error return value. */
//* */
//* If this function ever sets *Error to a non-zero value*/
//* the sort will terminate and the error code will be */
//* returned to the caller of the SortList function. */
//* */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return value. */
//* */
//* Output: If successful, this function will set *Error to */
//* DLIST_SUCCESS and ListToSort will have been sorted. */
//* If unsuccessful, *Error will contain an error code. */
//* The order of the items in ListToSort is undefined */
//* and may have changed. */
//* */
//* Error Handling: This function will terminate if *Compare sets */
//* *Error to a non-zero value, or if ListToSort */
//* is invalid. If this function does terminate in */
//* the middle of a sort, the order of the items in */
//* ListToSort may be different than it was before */
//* the function was called. */
//* */
//* Side Effects: None. */
//* */
//* Notes: It is assumed that Error contains a valid address. If */
//* this assumption is violated, an exception or trap */
//* may occur. */
//* */
//*********************************************************************/
void _System SortList(DLIST ListToSort,
INTEGER32 ( * _System Compare) (ADDRESS Object1, TAG Object1Tag, ADDRESS Object2, TAG Object2Tag,CARDINAL32 * Error),
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: ForEachItem */
//* */
//* Descriptive Name: This function passes a pointer to each item */
//* in a list to a user provided function for */
//* processing by the user provided function. */
//* */
//* Input: DLIST ListToProcess : The DLIST whose items are to be */
//* processed by the user provided */
//* function. */
//* */
//* void ( * ProcessItem) (...) */
//* */
//* This is a pointer to the user provided function. */
//* This user provided function takes the following */
//* parameters: */
//* */
//* ADDRESS Object : A pointer to an item in */
//* ListToProcess. */
//* TAG Object1Tag : The user assigned TAG value for */
//* the item pointed to by Object. */
//* ADDRESS Parameter : The address of a block of */
//* memory containing any */
//* parameters that the user */
//* wishes to have passed to this*/
//* function. */
//* CARDINAL32 * Error : The address of a variable to*/
//* hold the error return value.*/
//* */
//* ADDRESS Parameters : This field is passed through to */
//* *ProcessItem. This function does */
//* not even look at the contents of */
//* this field. This field is here to */
//* provide the user a way to pass */
//* additional data to *ProcessItem */
//* that *ProcessItem may need to */
//* function correctly. */
//* */
//* BOOLEAN Forward : If TRUE, then the list is traversed */
//* from the start of the list to the end */
//* of the list. If FALSE, then the list */
//* is traversed from the end of the list */
//* to the beginning. */
//* */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return value. */
//* */
//* Output: If successful, this function will set *Error to */
//* DLIST_SUCCESS. */
//* If unsuccessful, then this function will set *Error to */
//* a non-zero error code. */
//* */
//* Error Handling: This function aborts immediately when an error */
//* is detected, and any remaining items in the list*/
//* will not be processed. */
//* */
//* Side Effects: None. */
//* */
//* Notes: This function allows the user to access all of the items */
//* in a list and perform an operation on them. The */
//* operation performed must not free any items in the list, */
//* or perform any list operations on the list being */
//* processed. */
//* */
//* As an example of when this would be useful, consider a */
//* a list of graphic objects (rectangles, triangles, circles*/
//* etc.) which comprise a drawing. To draw the picture */
//* that these graphic objects represent, one could build a */
//* loop which gets and draws each item. Another way to */
//* do this would be to build a drawing function which can */
//* draw any of the graphic objects, and then use that */
//* function as the ProcessItem function in a call to */
//* ForEachItem. */
//* */
//* If the ProcessItem function sets *Error to something */
//* other than DLIST_SUCCESS, then ForEachItem will terminate*/
//* and return an error to whoever called it. The single */
//* exception to this is if ProcessItem sets *Error to */
//* DLIST_SEARCH_COMPLETE, in which case ForEachItem */
//* terminates and sets *Error to DLIST_SUCCESS. This is */
//* useful for using ForEachItem to search a list and then */
//* terminating the search once the desired item is found. */
//* */
//* A word about the Parameters parameter. This parameter */
//* is passed through to *ProcessItem and is never looked at */
//* by this function. This means that the user can put any */
//* value they desire into Parameters as long as it is the */
//* same size (in bytes) as Parameters. The intended use of */
//* Parameters is to allow the user to pass information to */
//* *ProcessItem that *ProcessItem may need. Either way, */
//* how Parameters is used is literally up to the user. */
//* */
//*********************************************************************/
void _System ForEachItem(DLIST ListToProcess,
void ( * _System ProcessItem) (ADDRESS Object, TAG ObjectTag, CARDINAL32 ObjectSize, ADDRESS ObjectHandle, ADDRESS Parameters, CARDINAL32 * Error),
ADDRESS Parameters,
BOOLEAN Forward,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: PruneList */
//* */
//* Descriptive Name: This function allows the caller to examine */
//* each item in a list and optionally delete */
//* it from the list. */
//* */
//* Input: DLIST ListToProcess : The DLIST to be pruned. */
//* */
//* BOOLEAN ( * KillItem) (...) */
//* */
//* This is a pointer to a user provided function. */
//* This user provided function takes the following */
//* parameters: */
//* */
//* ADDRESS Object : A pointer to an item in */
//* ListToProcess. */
//* TAG Object1Tag : The user assigned TAG value for */
//* the item pointed to by Object. */
//* ADDRESS Parameter : The address of a block of */
//* memory containing any */
//* parameters that the user */
//* wishes to have passed to this*/
//* function. */
//* BOOLEAN * FreeMemory : The address of a BOOLEAN */
//* variable which this */
//* function will set to */
//* either TRUE or FALSE. */
//* If the function return */
//* value is TRUE, then the */
//* value in *FreeMemory will */
//* be examined. If it is */
//* TRUE, then PruneList will */
//* free the memory associated*/
//* with the item being */
//* deleted. If *FreeMemory */
//* is FALSE, then the item */
//* being removed from the */
//* DLIST will not be freed, */
//* and it is up to the user */
//* to ensure that this memory*/
//* is handled properly. */
//* CARDINAL32 * Error : The address of a variable to*/
//* hold the error return value.*/
//* */
//* ADDRESS Parameters : This field is passed through to */
//* *ProcessItem. This function does */
//* not even look at the contents of */
//* this field. This field is here to */
//* provide the user a way to pass */
//* additional data to *ProcessItem */
//* that *ProcessItem may need to */
//* function correctly. */
//* */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return value. */
//* */
//* Output: If successful, this function will set *Error to */
//* DLIST_SUCCESS. */
//* If unsuccessful, then this function will set *Error to */
//* a non-zero error code. */
//* */
//* Error Handling: This function aborts immediately when an error */
//* is detected, and any remaining items in the list*/
//* will not be processed. */
//* */
//* Side Effects: None. */
//* */
//* Notes: This function allows the user to access all of the items */
//* in a list, perform an operation on them, and then */
//* optionally delete ("remove") them from the DLIST. The */
//* operation performed must not free any items in the list, */
//* or perform any list operations on the list being */
//* processed. */
//* */
//* If the KillItem function sets *Error to something other */
//* than DLIST_SUCCESS, then PruneList will terminate and */
//* return an error to whoever called it. The single */
//* exception to this is if KillItem sets *Error to */
//* DLIST_SEARCH_COMPLETE, in which case KillItem */
//* terminates and sets *Error to DLIST_SUCCESS. This is */
//* useful for using KillItem to search a list and then */
//* terminating the search once the desired item is found. */
//* */
//* A word about the Parameters parameter. This parameter */
//* is passed through to *ProcessItem and is never looked at */
//* by this function. This means that the user can put any */
//* value they desire into Parameters as long as it is the */
//* same size (in bytes) as Parameters. The intended use of */
//* Parameters is to allow the user to pass information to */
//* *ProcessItem that *ProcessItem may need. Either way, */
//* how Parameters is used is literally up to the user. */
//* */
//*********************************************************************/
void _System PruneList(DLIST ListToProcess,
BOOLEAN ( * _System KillItem) (ADDRESS Object, TAG ObjectTag, CARDINAL32 ObjectSize, ADDRESS ObjectHandle, ADDRESS Parameters, BOOLEAN * FreeMemory, CARDINAL32 * Error),
ADDRESS Parameters,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: AppendList */
//* */
//* Descriptive Name: Removes the items in SourceList and appends */
//* them to TargetList. */
//* */
//* Input: DLIST TargetList : The DLIST which is to have the items */
//* from SourceList appended to it. */
//* DLIST SourceList : The DLIST whose items are to be */
//* removed and appended to TargetList. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return value. */
//* */
//* Output: If successful, *Error will be set to DLIST_SUCCESS, */
//* SourceList will be empty, and TargetList will contain*/
//* all of its original items and all of the items that */
//* were in SourceList. */
//* If unsuccessful, *Error will be set to a non-zero value */
//* and SourceList and TargetList will be unmodified. */
//* */
//* Error Handling: This function will abort immediately upon */
//* detection of an error. All errors that can be */
//* detected are detected before the contents of */
//* SourceList are appended to TargetList, so if an*/
//* error is detected and the function aborts, */
//* SourceList and TargetList are unaltered. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
void _System AppendList(DLIST TargetList,
DLIST SourceList,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: TransferItem */
//* */
//* Descriptive Name: Removes an item in SourceList and places in */
//* TargetList. */
//* */
//* Input: DLIST SourceList : The DLIST containing the item which */
//* is to be transferred. */
//* ADDRESS SourceHandle : The handle of the item in */
//* SourceList which is to be */
//* transferred to another DLIST. */
//* If this is NULL, then the */
//* current item in SourceList will */
//* be used. */
//* DLIST TargetList : The DLIST which is to receive the */
//* item being transferred. */
//* ADDRESS TargetHandle : The item in TargetList which */
//* is used to determine where */
//* the item being transferred will */
//* be placed. If this is NULL, */
//* then the current item in */
//* TargetList will be used. */
//* Insertion_Modes TransferMode : This indicates where, */
//* relative to the item in */
//* TargetList specified by */
//* Target_Handle, the item being */
//* transferred can be placed. */
//* BOOLEAN MakeCurrent : If TRUE, the item transferred to */
//* TargetList becomes the current */
//* item in TargetList. */
//* CARDINAL32 * Error : The address of a variable to hold */
//* the error return value. */
//* */
//* Output: If successful, *Error will be set to DLIST_SUCCESS, */
//* SourceList will be empty, and TargetList will contain*/
//* all of its original items and all of the items that */
//* were in SourceList. */
//* If unsuccessful, *Error will be set to a non-zero value */
//* and SourceList and TargetList will be unmodified. */
//* */
//* Error Handling: This function will abort immediately upon */
//* detection of an error. All errors that can be */
//* detected are detected before the contents of */
//* SourceList are appended to TargetList, so if an*/
//* error is detected and the function aborts, */
//* SourceList and TargetList are unaltered. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
void _System TransferItem(DLIST SourceList,
ADDRESS SourceHandle,
DLIST TargetList,
ADDRESS TargetHandle,
Insertion_Modes TransferMode,
BOOLEAN MakeCurrent,
CARDINAL32 * Error);
//*********************************************************************/
//* */
//* Function Name: CheckListIntegrity */
//* */
//* Descriptive Name: Checks the integrity of a DLIST. All link */
//* nodes in the list are checked, as are all */
//* fields in the list control block. */
//* */
//* Input: DLIST ListToCheck - The list whose integrity is to be */
//* checked. */
//* */
//* Output: The function return value will be TRUE if all of the */
//* elements in the DLIST are correct. If this function */
//* returns FALSE, then the DLIST being checked has been */
//* corrupted! */
//* */
//* Error Handling: If this function encounters an error in a DLIST,*/
//* it will return FALSE. */
//* */
//* Side Effects: None. */
//* */
//* Notes: None. */
//* */
//*********************************************************************/
BOOLEAN _System CheckListIntegrity(DLIST ListToCheck);
{$endif}
Implementation
End.