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/*
* Copyright 2013 MongoDB, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef BSON_WRITER_H
#define BSON_WRITER_H
#include "bson.h"
BSON_BEGIN_DECLS
/**
* bson_writer_t:
*
* The bson_writer_t structure is a helper for writing a series of BSON
* documents to a single malloc() buffer. You can provide a realloc() style
* function to grow the buffer as you go.
*
* This is useful if you want to build a series of BSON documents right into
* the target buffer for an outgoing packet. The offset parameter allows you to
* start at an offset of the target buffer.
*/
typedef struct _bson_writer_t bson_writer_t;
bson_writer_t *bson_writer_new (uint8_t **buf,
size_t *buflen,
size_t offset,
bson_realloc_func realloc_func,
void *realloc_func_ctx);
void bson_writer_destroy (bson_writer_t *writer);
size_t bson_writer_get_length (bson_writer_t *writer);
bool bson_writer_begin (bson_writer_t *writer,
bson_t **bson);
void bson_writer_end (bson_writer_t *writer);
void bson_writer_rollback (bson_writer_t *writer);
BSON_END_DECLS
#endif /* BSON_WRITER_H */
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