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implement buffer protocol (#602)

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Fix #479
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Inada Naoki 2024-05-05 23:14:27 +09:00 • committed by GitHub
parent 526ec9c923
commit 52f8bc2e55
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2 changed files with 7 additions and 11 deletions
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10
msgpack/_packer.pyx
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@ -44,8 +44,6 @@ cdef extern from "pack.h":
int msgpack_pack_timestamp(msgpack_packer* x, long long seconds, unsigned long nanoseconds);
int msgpack_pack_unicode(msgpack_packer* pk, object o, long long limit)
cdef extern from "buff_converter.h":
object buff_to_buff(char *, Py_ssize_t)
cdef int DEFAULT_RECURSE_LIMIT=511
cdef long long ITEM_LIMIT = (2**32)-1
@ -371,4 +369,10 @@ cdef class Packer(object):
def getbuffer(self):
"""Return view of internal buffer."""
return buff_to_buff(self.pk.buf, self.pk.length)
return memoryview(self)
def __getbuffer__(self, Py_buffer *buffer, int flags):
PyBuffer_FillInfo(buffer, self, self.pk.buf, self.pk.length, 1, flags)
def __releasebuffer__(self, Py_buffer *buffer):
pass

8
msgpack/buff_converter.h
View file

@ -1,8 +0,0 @@
#include "Python.h"
/* cython does not support this preprocessor check => write it in raw C */
static PyObject *
buff_to_buff(char *buff, Py_ssize_t size)
{
return PyMemoryView_FromMemory(buff, size, PyBUF_READ);
}