144 lines
4.4 KiB
Cython
144 lines
4.4 KiB
Cython
# Copyright (C) 2016-present the asyncpg authors and contributors
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# <see AUTHORS file>
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#
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# This module is part of asyncpg and is released under
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# the Apache 2.0 License: http://www.apache.org/licenses/LICENSE-2.0
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cdef bool_encode(CodecContext settings, WriteBuffer buf, obj):
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if not cpython.PyBool_Check(obj):
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raise TypeError('a boolean is required (got type {})'.format(
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type(obj).__name__))
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buf.write_int32(1)
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buf.write_byte(b'\x01' if obj is True else b'\x00')
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cdef bool_decode(CodecContext settings, FRBuffer *buf):
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return frb_read(buf, 1)[0] is b'\x01'
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cdef int2_encode(CodecContext settings, WriteBuffer buf, obj):
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cdef int overflow = 0
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cdef long val
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try:
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if type(obj) is not int and hasattr(type(obj), '__int__'):
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# Silence a Python warning about implicit __int__
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# conversion.
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obj = int(obj)
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val = cpython.PyLong_AsLong(obj)
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except OverflowError:
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overflow = 1
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if overflow or val < INT16_MIN or val > INT16_MAX:
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raise OverflowError('value out of int16 range')
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buf.write_int32(2)
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buf.write_int16(<int16_t>val)
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cdef int2_decode(CodecContext settings, FRBuffer *buf):
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return cpython.PyLong_FromLong(hton.unpack_int16(frb_read(buf, 2)))
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cdef int4_encode(CodecContext settings, WriteBuffer buf, obj):
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cdef int overflow = 0
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cdef long val = 0
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try:
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if type(obj) is not int and hasattr(type(obj), '__int__'):
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# Silence a Python warning about implicit __int__
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# conversion.
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obj = int(obj)
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val = cpython.PyLong_AsLong(obj)
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except OverflowError:
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overflow = 1
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# "long" and "long long" have the same size for x86_64, need an extra check
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if overflow or (sizeof(val) > 4 and (val < INT32_MIN or val > INT32_MAX)):
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raise OverflowError('value out of int32 range')
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buf.write_int32(4)
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buf.write_int32(<int32_t>val)
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cdef int4_decode(CodecContext settings, FRBuffer *buf):
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return cpython.PyLong_FromLong(hton.unpack_int32(frb_read(buf, 4)))
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cdef uint4_encode(CodecContext settings, WriteBuffer buf, obj):
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cdef int overflow = 0
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cdef unsigned long val = 0
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try:
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if type(obj) is not int and hasattr(type(obj), '__int__'):
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# Silence a Python warning about implicit __int__
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# conversion.
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obj = int(obj)
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val = cpython.PyLong_AsUnsignedLong(obj)
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except OverflowError:
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overflow = 1
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# "long" and "long long" have the same size for x86_64, need an extra check
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if overflow or (sizeof(val) > 4 and val > UINT32_MAX):
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raise OverflowError('value out of uint32 range')
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buf.write_int32(4)
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buf.write_int32(<int32_t>val)
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cdef uint4_decode(CodecContext settings, FRBuffer *buf):
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return cpython.PyLong_FromUnsignedLong(
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<uint32_t>hton.unpack_int32(frb_read(buf, 4)))
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cdef int8_encode(CodecContext settings, WriteBuffer buf, obj):
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cdef int overflow = 0
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cdef long long val
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try:
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if type(obj) is not int and hasattr(type(obj), '__int__'):
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# Silence a Python warning about implicit __int__
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# conversion.
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obj = int(obj)
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val = cpython.PyLong_AsLongLong(obj)
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except OverflowError:
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overflow = 1
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# Just in case for systems with "long long" bigger than 8 bytes
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if overflow or (sizeof(val) > 8 and (val < INT64_MIN or val > INT64_MAX)):
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raise OverflowError('value out of int64 range')
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buf.write_int32(8)
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buf.write_int64(<int64_t>val)
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cdef int8_decode(CodecContext settings, FRBuffer *buf):
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return cpython.PyLong_FromLongLong(hton.unpack_int64(frb_read(buf, 8)))
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cdef uint8_encode(CodecContext settings, WriteBuffer buf, obj):
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cdef int overflow = 0
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cdef unsigned long long val = 0
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try:
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if type(obj) is not int and hasattr(type(obj), '__int__'):
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# Silence a Python warning about implicit __int__
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# conversion.
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obj = int(obj)
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val = cpython.PyLong_AsUnsignedLongLong(obj)
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except OverflowError:
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overflow = 1
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# Just in case for systems with "long long" bigger than 8 bytes
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if overflow or (sizeof(val) > 8 and val > UINT64_MAX):
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raise OverflowError('value out of uint64 range')
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buf.write_int32(8)
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buf.write_int64(<int64_t>val)
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cdef uint8_decode(CodecContext settings, FRBuffer *buf):
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return cpython.PyLong_FromUnsignedLongLong(
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<uint64_t>hton.unpack_int64(frb_read(buf, 8))) |