/*
 * 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 */
   void               *realloc_func_ctx; /* context for our realloc func */
} bson_impl_alloc_t
BSON_ALIGNED_END (128);


BSON_STATIC_ASSERT (sizeof (bson_impl_alloc_t) <= 128);


BSON_END_DECLS


#endif /* BSON_PRIVATE_H */
