# Copyright (C) 2016-present the asyncpg authors and contributors
# <see AUTHORS file>
#
# This module is part of asyncpg and is released under
# the Apache 2.0 License: http://www.apache.org/licenses/LICENSE-2.0
cdef bool_encode(CodecContext settings, WriteBuffer buf, obj):
if not cpython.PyBool_Check(obj):
raise TypeError('a boolean is required (got type {})'.format(
type(obj).__name__))
buf.write_int32(1)
buf.write_byte(b'\x01' if obj is True else b'\x00')
cdef bool_decode(CodecContext settings, FRBuffer *buf):
return frb_read(buf, 1)[0] is b'\x01'
cdef int2_encode(CodecContext settings, WriteBuffer buf, obj):
cdef int overflow = 0
cdef long val
try:
val = cpython.PyLong_AsLong(obj)
except OverflowError:
overflow = 1
if overflow or val < INT16_MIN or val > INT16_MAX:
raise OverflowError('value out of int16 range')
buf.write_int32(2)
buf.write_int16(<int16_t>val)
cdef int2_decode(CodecContext settings, FRBuffer *buf):
return cpython.PyLong_FromLong(hton.unpack_int16(frb_read(buf, 2)))
cdef int4_encode(CodecContext settings, WriteBuffer buf, obj):
cdef int overflow = 0
cdef long val = 0
try:
val = cpython.PyLong_AsLong(obj)
except OverflowError:
overflow = 1
# "long" and "long long" have the same size for x86_64, need an extra check
if overflow or (sizeof(val) > 4 and (val < INT32_MIN or val > INT32_MAX)):
raise OverflowError('value out of int32 range')
buf.write_int32(4)
buf.write_int32(<int32_t>val)
cdef int4_decode(CodecContext settings, FRBuffer *buf):
return cpython.PyLong_FromLong(hton.unpack_int32(frb_read(buf, 4)))
cdef uint4_encode(CodecContext settings, WriteBuffer buf, obj):
cdef int overflow = 0
cdef unsigned long val = 0
try:
val = cpython.PyLong_AsUnsignedLong(obj)
except OverflowError:
overflow = 1
# "long" and "long long" have the same size for x86_64, need an extra check
if overflow or (sizeof(val) > 4 and val > UINT32_MAX):
raise OverflowError('value out of uint32 range')
buf.write_int32(4)
buf.write_int32(<int32_t>val)
cdef uint4_decode(CodecContext settings, FRBuffer *buf):
return cpython.PyLong_FromUnsignedLong(
<uint32_t>hton.unpack_int32(frb_read(buf, 4)))
cdef int8_encode(CodecContext settings, WriteBuffer buf, obj):
cdef int overflow = 0
cdef long long val
try:
val = cpython.PyLong_AsLongLong(obj)
except OverflowError:
overflow = 1
# Just in case for systems with "long long" bigger than 8 bytes
if overflow or (sizeof(val) > 8 and (val < INT64_MIN or val > INT64_MAX)):
raise OverflowError('value out of int64 range')
buf.write_int32(8)
buf.write_int64(<int64_t>val)
cdef int8_decode(CodecContext settings, FRBuffer *buf):
return cpython.PyLong_FromLongLong(hton.unpack_int64(frb_read(buf, 8)))