/*
 * 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_PRIVATE_H
#define BSON_PRIVATE_H


#include "bson-macros.h"
#include "bson-memory.h"
#include "bson-types.h"


BSON_BEGIN_DECLS


typedef enum
{
   BSON_FLAG_NONE = 0,
   BSON_FLAG_INLINE = (1 << 0),
   BSON_FLAG_STATIC = (1 << 1),
   BSON_FLAG_RDONLY = (1 << 2),
   BSON_FLAG_CHILD = (1 << 3),
   BSON_FLAG_IN_CHILD = (1 << 4),
   BSON_FLAG_NO_FREE = (1 << 5),
} bson_flags_t;


BSON_ALIGNED_BEGIN (128)
typedef struct
{
   bson_flags_t flags;
   uint32_t len;
   uint8_t data[120];
} bson_impl_inline_t
BSON_ALIGNED_END (128);


BSON_STATIC_ASSERT (sizeof (bson_impl_inline_t) == 128);


BSON_ALIGNED_BEGIN (128)
typedef struct
{
   bson_flags_t flags;           /* flags describing the bson_t */
   uint32_t len;            /* length of bson document in bytes */
   bson_t *parent;               /* parent bson if a child */
   uint32_t depth;          /* Subdocument depth. */
   uint8_t **buf;           /* pointer to buffer pointer */
   size_t *buflen;               /* pointer to buffer length */
   size_t offset;                /* our offset inside *buf  */
   uint8_t *alloc;          /* buffer that we own. */
   size_t alloclen;              /* length of buffer that we own. */
   bson_realloc_func realloc;    /* our realloc implementation */
} bson_impl_alloc_t
BSON_ALIGNED_END (128);


BSON_STATIC_ASSERT (sizeof (bson_impl_alloc_t) <= 128);


BSON_END_DECLS


#endif /* BSON_PRIVATE_H */