mirror of
https://github.com/msgpack/msgpack-python.git
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119 lines
2.6 KiB
C
119 lines
2.6 KiB
C
/*
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* MessagePack for Python packing routine
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*
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* Copyright (C) 2009 Naoki INADA
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stddef.h>
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#include <stdlib.h>
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#include "sysdep.h"
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#include <limits.h>
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#include <string.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef _MSC_VER
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#define inline __inline
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#endif
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typedef struct msgpack_packer {
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char *buf;
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size_t length;
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size_t buf_size;
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bool use_bin_type;
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} msgpack_packer;
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typedef struct Packer Packer;
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static inline int msgpack_pack_write(msgpack_packer* pk, const char *data, size_t l)
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{
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char* buf = pk->buf;
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size_t bs = pk->buf_size;
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size_t len = pk->length;
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if (len + l > bs) {
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bs = (len + l) * 2;
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buf = (char*)PyMem_Realloc(buf, bs);
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if (!buf) {
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PyErr_NoMemory();
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return -1;
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}
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}
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memcpy(buf + len, data, l);
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len += l;
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pk->buf = buf;
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pk->buf_size = bs;
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pk->length = len;
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return 0;
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}
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#define msgpack_pack_append_buffer(user, buf, len) \
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return msgpack_pack_write(user, (const char*)buf, len)
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#include "pack_template.h"
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// return -2 when o is too long
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static inline int
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msgpack_pack_unicode(msgpack_packer *pk, PyObject *o, long long limit)
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{
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#if PY_MAJOR_VERSION >= 3
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assert(PyUnicode_Check(o));
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Py_ssize_t len;
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const char* buf = PyUnicode_AsUTF8AndSize(o, &len);
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if (buf == NULL)
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return -1;
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if (len > limit) {
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return -2;
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}
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int ret = msgpack_pack_raw(pk, len);
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if (ret) return ret;
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return msgpack_pack_raw_body(pk, buf, len);
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#else
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PyObject *bytes;
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Py_ssize_t len;
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int ret;
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// py2
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bytes = PyUnicode_AsUTF8String(o);
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if (bytes == NULL)
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return -1;
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len = PyString_GET_SIZE(bytes);
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if (len > limit) {
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Py_DECREF(bytes);
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return -2;
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}
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ret = msgpack_pack_raw(pk, len);
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if (ret) {
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Py_DECREF(bytes);
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return -1;
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}
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ret = msgpack_pack_raw_body(pk, PyString_AS_STRING(bytes), len);
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Py_DECREF(bytes);
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return ret;
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#endif
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}
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#ifdef __cplusplus
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}
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#endif
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