49 lines
1.5 KiB
Cython
49 lines
1.5 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 inline as_pg_string_and_size(
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CodecContext settings, obj, char **cstr, ssize_t *size):
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if not cpython.PyUnicode_Check(obj):
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raise TypeError('expected str, got {}'.format(type(obj).__name__))
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if settings.is_encoding_utf8():
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cstr[0] = <char*>cpythonx.PyUnicode_AsUTF8AndSize(obj, size)
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else:
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encoded = settings.get_text_codec().encode(obj)[0]
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cpython.PyBytes_AsStringAndSize(encoded, cstr, size)
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if size[0] > 0x7fffffff:
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raise ValueError('string too long')
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cdef text_encode(CodecContext settings, WriteBuffer buf, obj):
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cdef:
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char *str
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ssize_t size
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as_pg_string_and_size(settings, obj, &str, &size)
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buf.write_int32(<int32_t>size)
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buf.write_cstr(str, size)
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cdef inline decode_pg_string(CodecContext settings, const char* data,
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ssize_t len):
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if settings.is_encoding_utf8():
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# decode UTF-8 in strict mode
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return cpython.PyUnicode_DecodeUTF8(data, len, NULL)
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else:
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bytes = cpython.PyBytes_FromStringAndSize(data, len)
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return settings.get_text_codec().decode(bytes)[0]
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cdef text_decode(CodecContext settings, FRBuffer *buf):
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cdef ssize_t buf_len = buf.len
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return decode_pg_string(settings, frb_read_all(buf), buf_len)
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