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/**
* @file bson.h
* @brief BSON Declarations
*/
/* Copyright 2009-2012 10gen 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_H_
#define BSON_H_
#include <time.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdarg.h>
#ifdef __GNUC__
#define MONGO_INLINE static __inline__
#define MONGO_EXPORT
#else
#define MONGO_INLINE static
#ifdef MONGO_STATIC_BUILD
#define MONGO_EXPORT
#elif defined(MONGO_DLL_BUILD)
#define MONGO_EXPORT __declspec(dllexport)
#else
#define MONGO_EXPORT __declspec(dllimport)
#endif
#endif
#ifdef __cplusplus
#define MONGO_EXTERN_C_START extern "C" {
#define MONGO_EXTERN_C_END }
#else
#define MONGO_EXTERN_C_START
#define MONGO_EXTERN_C_END
#endif
#if defined(MONGO_HAVE_STDINT) || __STDC_VERSION__ >= 199901L
#include <stdint.h>
#elif defined(MONGO_HAVE_UNISTD)
#include <unistd.h>
#elif defined(MONGO_USE__INT64)
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;
#elif defined(MONGO_USE_LONG_LONG_INT)
typedef long long int int64_t;
typedef unsigned long long int uint64_t;
#else
#error Must compile with c99 or define MONGO_HAVE_STDINT, MONGO_HAVE_UNISTD, MONGO_USE__INT64, or MONGO_USE_LONG_LONG_INT.
#endif
#ifdef MONGO_BIG_ENDIAN
#define bson_little_endian64(out, in) ( bson_swap_endian64(out, in) )
#define bson_little_endian32(out, in) ( bson_swap_endian32(out, in) )
#define bson_big_endian64(out, in) ( memcpy(out, in, 8) )
#define bson_big_endian32(out, in) ( memcpy(out, in, 4) )
#else
#define bson_little_endian64(out, in) ( memcpy(out, in, 8) )
#define bson_little_endian32(out, in) ( memcpy(out, in, 4) )
#define bson_big_endian64(out, in) ( bson_swap_endian64(out, in) )
#define bson_big_endian32(out, in) ( bson_swap_endian32(out, in) )
#endif
MONGO_EXTERN_C_START
#define BSON_OK 0
#define BSON_ERROR -1
enum bson_error_t {
BSON_SIZE_OVERFLOW = 1 /**< Trying to create a BSON object larger than INT_MAX. */
};
enum bson_validity_t {
BSON_VALID = 0, /**< BSON is valid and UTF-8 compliant. */
BSON_NOT_UTF8 = ( 1<<1 ), /**< A key or a string is not valid UTF-8. */
BSON_FIELD_HAS_DOT = ( 1<<2 ), /**< Warning: key contains '.' character. */
BSON_FIELD_INIT_DOLLAR = ( 1<<3 ), /**< Warning: key starts with '$' character. */
BSON_ALREADY_FINISHED = ( 1<<4 ) /**< Trying to modify a finished BSON object. */
};
enum bson_binary_subtype_t {
BSON_BIN_BINARY = 0,
BSON_BIN_FUNC = 1,
BSON_BIN_BINARY_OLD = 2,
BSON_BIN_UUID = 3,
BSON_BIN_MD5 = 5,
BSON_BIN_USER = 128
};
typedef enum {
BSON_EOO = 0,
BSON_DOUBLE = 1,
BSON_STRING = 2,
BSON_OBJECT = 3,
BSON_ARRAY = 4,
BSON_BINDATA = 5,
BSON_UNDEFINED = 6,
BSON_OID = 7,
BSON_BOOL = 8,
BSON_DATE = 9,
BSON_NULL = 10,
BSON_REGEX = 11,
BSON_DBREF = 12, /**< Deprecated. */
BSON_CODE = 13,
BSON_SYMBOL = 14,
BSON_CODEWSCOPE = 15,
BSON_INT = 16,
BSON_TIMESTAMP = 17,
BSON_LONG = 18
} bson_type;
typedef int bson_bool_t;
typedef struct {
const char *cur;
bson_bool_t first;
} bson_iterator;
typedef struct {
char *data; /**< Pointer to a block of data in this BSON object. */
char *cur; /**< Pointer to the current position. */
int dataSize; /**< The number of bytes allocated to char *data. */
bson_bool_t finished; /**< When finished, the BSON object can no longer be modified. */
int stack[32]; /**< A stack used to keep track of nested BSON elements. */
int stackPos; /**< Index of current stack position. */
int err; /**< Bitfield representing errors or warnings on this buffer */
char *errstr; /**< A string representation of the most recent error or warning. */
} bson;
#pragma pack(1)
typedef union {
char bytes[12];
int ints[3];
} bson_oid_t;
#pragma pack()
typedef int64_t bson_date_t; /* milliseconds since epoch UTC */
typedef struct {
int i; /* increment */
int t; /* time in seconds */
} bson_timestamp_t;
/* ----------------------------
READING
------------------------------ */
MONGO_EXPORT bson* bson_create( void );
MONGO_EXPORT void bson_dispose(bson* b);
/**
* Size of a BSON object.
*
* @param b the BSON object.
*
* @return the size.
*/
MONGO_EXPORT int bson_size( const bson *b );
MONGO_EXPORT int bson_buffer_size( const bson *b );
/**
* Print a string representation of a BSON object.
*
* @param b the BSON object to print.
*/
MONGO_EXPORT void bson_print( const bson *b );
/**
* Return a pointer to the raw buffer stored by this bson object.
*
* @param b a BSON object
*/
MONGO_EXPORT const char *bson_data( const bson *b );
/**
* Print a string representation of a BSON object.
*
* @param bson the raw data to print.
* @param depth the depth to recurse the object.x
*/
MONGO_EXPORT void bson_print_raw( const char *bson , int depth );
/**
* Advance a bson_iterator to the named field.
*
* @param it the bson_iterator to use.
* @param obj the BSON object to use.
* @param name the name of the field to find.
*
* @return the type of the found object or BSON_EOO if it is not found.
*/
MONGO_EXPORT bson_type bson_find( bson_iterator *it, const bson *obj, const char *name );
MONGO_EXPORT bson_iterator* bson_iterator_create( void );
MONGO_EXPORT void bson_iterator_dispose(bson_iterator*);
/**
* Initialize a bson_iterator.
*
* @param i the bson_iterator to initialize.
* @param bson the BSON object to associate with the iterator.
*/
MONGO_EXPORT void bson_iterator_init( bson_iterator *i , const bson *b );
/**
* Initialize a bson iterator from a const char* buffer. Note
* that this is mostly used internally.
*
* @param i the bson_iterator to initialize.
* @param buffer the buffer to point to.
*/
MONGO_EXPORT void bson_iterator_from_buffer( bson_iterator *i, const char *buffer );
/* more returns true for eoo. best to loop with bson_iterator_next(&it) */
/**
* Check to see if the bson_iterator has more data.
*
* @param i the iterator.
*
* @return returns true if there is more data.
*/
MONGO_EXPORT bson_bool_t bson_iterator_more( const bson_iterator *i );
/**
* Point the iterator at the next BSON object.
*
* @param i the bson_iterator.
*
* @return the type of the next BSON object.
*/
MONGO_EXPORT bson_type bson_iterator_next( bson_iterator *i );
/**
* Get the type of the BSON object currently pointed to by the iterator.
*
* @param i the bson_iterator
*
* @return the type of the current BSON object.
*/
MONGO_EXPORT bson_type bson_iterator_type( const bson_iterator *i );
/**
* Get the key of the BSON object currently pointed to by the iterator.
*
* @param i the bson_iterator
*
* @return the key of the current BSON object.
*/
MONGO_EXPORT const char *bson_iterator_key( const bson_iterator *i );
/**
* Get the value of the BSON object currently pointed to by the iterator.
*
* @param i the bson_iterator
*
* @return the value of the current BSON object.
*/
MONGO_EXPORT const char *bson_iterator_value( const bson_iterator *i );
/* these convert to the right type (return 0 if non-numeric) */
/**
* Get the double value of the BSON object currently pointed to by the
* iterator.
*
* @param i the bson_iterator
*
* @return the value of the current BSON object.
*/
MONGO_EXPORT double bson_iterator_double( const bson_iterator *i );
/**
* Get the int value of the BSON object currently pointed to by the iterator.
*
* @param i the bson_iterator
*
* @return the value of the current BSON object.
*/
MONGO_EXPORT int bson_iterator_int( const bson_iterator *i );
/**
* Get the long value of the BSON object currently pointed to by the iterator.
*
* @param i the bson_iterator
*
* @return the value of the current BSON object.
*/
MONGO_EXPORT int64_t bson_iterator_long( const bson_iterator *i );
/* return the bson timestamp as a whole or in parts */
/**
* Get the timestamp value of the BSON object currently pointed to by
* the iterator.
*
* @param i the bson_iterator
*
* @return the value of the current BSON object.
*/
MONGO_EXPORT bson_timestamp_t bson_iterator_timestamp( const bson_iterator *i );
MONGO_EXPORT int bson_iterator_timestamp_time( const bson_iterator *i );
MONGO_EXPORT int bson_iterator_timestamp_increment( const bson_iterator *i );
/**
* Get the boolean value of the BSON object currently pointed to by
* the iterator.
*
* @param i the bson_iterator
*
* @return the value of the current BSON object.
*/
/* false: boolean false, 0 in any type, or null */
/* true: anything else (even empty strings and objects) */
MONGO_EXPORT bson_bool_t bson_iterator_bool( const bson_iterator *i );
/**
* Get the double value of the BSON object currently pointed to by the
* iterator. Assumes the correct type is used.
*
* @param i the bson_iterator
*
* @return the value of the current BSON object.
*/
/* these assume you are using the right type */
double bson_iterator_double_raw( const bson_iterator *i );
/**
* Get the int value of the BSON object currently pointed to by the
* iterator. Assumes the correct type is used.
*
* @param i the bson_iterator
*
* @return the value of the current BSON object.
*/
int bson_iterator_int_raw( const bson_iterator *i );
/**
* Get the long value of the BSON object currently pointed to by the
* iterator. Assumes the correct type is used.
*
* @param i the bson_iterator
*
* @return the value of the current BSON object.
*/
int64_t bson_iterator_long_raw( const bson_iterator *i );
/**
* Get the bson_bool_t value of the BSON object currently pointed to by the
* iterator. Assumes the correct type is used.
*
* @param i the bson_iterator
*
* @return the value of the current BSON object.
*/
bson_bool_t bson_iterator_bool_raw( const bson_iterator *i );
/**
* Get the bson_oid_t value of the BSON object currently pointed to by the
* iterator.
*
* @param i the bson_iterator
*
* @return the value of the current BSON object.
*/
MONGO_EXPORT bson_oid_t *bson_iterator_oid( const bson_iterator *i );
/**
* Get the string value of the BSON object currently pointed to by the
* iterator.
*
* @param i the bson_iterator
*
* @return the value of the current BSON object.
*/
/* these can also be used with bson_code and bson_symbol*/
MONGO_EXPORT const char *bson_iterator_string( const bson_iterator *i );
/**
* Get the string length of the BSON object currently pointed to by the
* iterator.
*
* @param i the bson_iterator
*
* @return the length of the current BSON object.
*/
int bson_iterator_string_len( const bson_iterator *i );
/**
* Get the code value of the BSON object currently pointed to by the
* iterator. Works with bson_code, bson_codewscope, and BSON_STRING
* returns NULL for everything else.
*
* @param i the bson_iterator
*
* @return the code value of the current BSON object.
*/
/* works with bson_code, bson_codewscope, and BSON_STRING */
/* returns NULL for everything else */
MONGO_EXPORT const char *bson_iterator_code( const bson_iterator *i );
/**
* Calls bson_empty on scope if not a bson_codewscope
*
* @param i the bson_iterator.
* @param scope the bson scope.
*/
/* calls bson_empty on scope if not a bson_codewscope */
MONGO_EXPORT void bson_iterator_code_scope( const bson_iterator *i, bson *scope );
/**
* Get the date value of the BSON object currently pointed to by the
* iterator.
*
* @param i the bson_iterator
*
* @return the date value of the current BSON object.
*/
/* both of these only work with bson_date */
MONGO_EXPORT bson_date_t bson_iterator_date( const bson_iterator *i );
/**
* Get the time value of the BSON object currently pointed to by the
* iterator.
*
* @param i the bson_iterator
*
* @return the time value of the current BSON object.
*/
MONGO_EXPORT time_t bson_iterator_time_t( const bson_iterator *i );
/**
* Get the length of the BSON binary object currently pointed to by the
* iterator.
*
* @param i the bson_iterator
*
* @return the length of the current BSON binary object.
*/
MONGO_EXPORT int bson_iterator_bin_len( const bson_iterator *i );
/**
* Get the type of the BSON binary object currently pointed to by the
* iterator.
*
* @param i the bson_iterator
*
* @return the type of the current BSON binary object.
*/
MONGO_EXPORT char bson_iterator_bin_type( const bson_iterator *i );
/**
* Get the value of the BSON binary object currently pointed to by the
* iterator.
*
* @param i the bson_iterator
*
* @return the value of the current BSON binary object.
*/
MONGO_EXPORT const char *bson_iterator_bin_data( const bson_iterator *i );
/**
* Get the value of the BSON regex object currently pointed to by the
* iterator.
*
* @param i the bson_iterator
*
* @return the value of the current BSON regex object.
*/
MONGO_EXPORT const char *bson_iterator_regex( const bson_iterator *i );
/**
* Get the options of the BSON regex object currently pointed to by the
* iterator.
*
* @param i the bson_iterator.
*
* @return the options of the current BSON regex object.
*/
MONGO_EXPORT const char *bson_iterator_regex_opts( const bson_iterator *i );
/* these work with BSON_OBJECT and BSON_ARRAY */
/**
* Get the BSON subobject currently pointed to by the
* iterator.
*
* @param i the bson_iterator.
* @param sub the BSON subobject destination.
*/
MONGO_EXPORT void bson_iterator_subobject( const bson_iterator *i, bson *sub );
/**
* Get a bson_iterator that on the BSON subobject.
*
* @param i the bson_iterator.
* @param sub the iterator to point at the BSON subobject.
*/
MONGO_EXPORT void bson_iterator_subiterator( const bson_iterator *i, bson_iterator *sub );
/* str must be at least 24 hex chars + null byte */
/**
* Create a bson_oid_t from a string.
*
* @param oid the bson_oid_t destination.
* @param str a null terminated string comprised of at least 24 hex chars.
*/
MONGO_EXPORT void bson_oid_from_string( bson_oid_t *oid, const char *str );
/**
* Create a string representation of the bson_oid_t.
*
* @param oid the bson_oid_t source.
* @param str the string representation destination.
*/
MONGO_EXPORT void bson_oid_to_string( const bson_oid_t *oid, char *str );
/**
* Create a bson_oid object.
*
* @param oid the destination for the newly created bson_oid_t.
*/
MONGO_EXPORT void bson_oid_gen( bson_oid_t *oid );
/**
* Set a function to be used to generate the second four bytes
* of an object id.
*
* @param func a pointer to a function that returns an int.
*/
MONGO_EXPORT void bson_set_oid_fuzz( int ( *func )( void ) );
/**
* Set a function to be used to generate the incrementing part
* of an object id (last four bytes). If you need thread-safety
* in generating object ids, you should set this function.
*
* @param func a pointer to a function that returns an int.
*/
MONGO_EXPORT void bson_set_oid_inc( int ( *func )( void ) );
/**
* Get the time a bson_oid_t was created.
*
* @param oid the bson_oid_t.
*/
MONGO_EXPORT time_t bson_oid_generated_time( bson_oid_t *oid ); /* Gives the time the OID was created */
/* ----------------------------
BUILDING
------------------------------ */
/**
* Initialize a new bson object. If not created
* with bson_new, you must initialize each new bson
* object using this function.
*
* @note When finished, you must pass the bson object to
* bson_destroy( ).
*/
MONGO_EXPORT void bson_init( bson *b );
/**
* Initialize a BSON object, and point its data
* pointer to the provided char*.
*
* @param b the BSON object to initialize.
* @param data the raw BSON data.
*
* @return BSON_OK or BSON_ERROR.
*/
int bson_init_data( bson *b , char *data );
int bson_init_finished_data( bson *b, char *data ) ;
/**
* Initialize a BSON object, and set its
* buffer to the given size.
*
* @param b the BSON object to initialize.
* @param size the initial size of the buffer.
*
* @return BSON_OK or BSON_ERROR.
*/
void bson_init_size( bson *b, int size );
/**
* Grow a bson object.
*
* @param b the bson to grow.
* @param bytesNeeded the additional number of bytes needed.
*
* @return BSON_OK or BSON_ERROR with the bson error object set.
* Exits if allocation fails.
*/
int bson_ensure_space( bson *b, const int bytesNeeded );
/**
* Finalize a bson object.
*
* @param b the bson object to finalize.
*
* @return the standard error code. To deallocate memory,
* call bson_destroy on the bson object.
*/
MONGO_EXPORT int bson_finish( bson *b );
/**
* Destroy a bson object.
*
* @param b the bson object to destroy.
*
*/
MONGO_EXPORT void bson_destroy( bson *b );
/**
* Returns a pointer to a static empty BSON object.
*
* @param obj the BSON object to initialize.
*
* @return the empty initialized BSON object.
*/
/* returns pointer to static empty bson object */
MONGO_EXPORT bson *bson_empty( bson *obj );
/**
* Make a complete copy of the a BSON object.
* The source bson object must be in a finished
* state; otherwise, the copy will fail.
*
* @param out the copy destination BSON object.
* @param in the copy source BSON object.
*/
MONGO_EXPORT int bson_copy( bson *out, const bson *in ); /* puts data in new buffer. NOOP if out==NULL */
/**
* Append a previously created bson_oid_t to a bson object.
*
* @param b the bson to append to.
* @param name the key for the bson_oid_t.
* @param oid the bson_oid_t to append.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_oid( bson *b, const char *name, const bson_oid_t *oid );
/**
* Append a bson_oid_t to a bson.
*
* @param b the bson to append to.
* @param name the key for the bson_oid_t.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_new_oid( bson *b, const char *name );
/**
* Append an int to a bson.
*
* @param b the bson to append to.
* @param name the key for the int.
* @param i the int to append.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_int( bson *b, const char *name, const int i );
/**
* Append an long to a bson.
*
* @param b the bson to append to.
* @param name the key for the long.
* @param i the long to append.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_long( bson *b, const char *name, const int64_t i );
/**
* Append an double to a bson.
*
* @param b the bson to append to.
* @param name the key for the double.
* @param d the double to append.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_double( bson *b, const char *name, const double d );
/**
* Append a string to a bson.
*
* @param b the bson to append to.
* @param name the key for the string.
* @param str the string to append.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_string( bson *b, const char *name, const char *str );
/**
* Append len bytes of a string to a bson.
*
* @param b the bson to append to.
* @param name the key for the string.
* @param str the string to append.
* @param len the number of bytes from str to append.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_string_n( bson *b, const char *name, const char *str, int len );
/**
* Append a symbol to a bson.
*
* @param b the bson to append to.
* @param name the key for the symbol.
* @param str the symbol to append.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_symbol( bson *b, const char *name, const char *str );
/**
* Append len bytes of a symbol to a bson.
*
* @param b the bson to append to.
* @param name the key for the symbol.
* @param str the symbol to append.
* @param len the number of bytes from str to append.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_symbol_n( bson *b, const char *name, const char *str, int len );
/**
* Append code to a bson.
*
* @param b the bson to append to.
* @param name the key for the code.
* @param str the code to append.
* @param len the number of bytes from str to append.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_code( bson *b, const char *name, const char *str );
/**
* Append len bytes of code to a bson.
*
* @param b the bson to append to.
* @param name the key for the code.
* @param str the code to append.
* @param len the number of bytes from str to append.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_code_n( bson *b, const char *name, const char *str, int len );
/**
* Append code to a bson with scope.
*
* @param b the bson to append to.
* @param name the key for the code.
* @param str the string to append.
* @param scope a BSON object containing the scope.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_code_w_scope( bson *b, const char *name, const char *code, const bson *scope );
/**
* Append len bytes of code to a bson with scope.
*
* @param b the bson to append to.
* @param name the key for the code.
* @param str the string to append.
* @param len the number of bytes from str to append.
* @param scope a BSON object containing the scope.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_code_w_scope_n( bson *b, const char *name, const char *code, int size, const bson *scope );
/**
* Append binary data to a bson.
*
* @param b the bson to append to.
* @param name the key for the data.
* @param type the binary data type.
* @param str the binary data.
* @param len the length of the data.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_binary( bson *b, const char *name, char type, const char *str, int len );
/**
* Append a bson_bool_t to a bson.
*
* @param b the bson to append to.
* @param name the key for the boolean value.
* @param v the bson_bool_t to append.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_bool( bson *b, const char *name, const bson_bool_t v );
/**
* Append a null value to a bson.
*
* @param b the bson to append to.
* @param name the key for the null value.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_null( bson *b, const char *name );
/**
* Append an undefined value to a bson.
*
* @param b the bson to append to.
* @param name the key for the undefined value.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_undefined( bson *b, const char *name );
/**
* Append a regex value to a bson.
*
* @param b the bson to append to.
* @param name the key for the regex value.
* @param pattern the regex pattern to append.
* @param the regex options.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_regex( bson *b, const char *name, const char *pattern, const char *opts );
/**
* Append bson data to a bson.
*
* @param b the bson to append to.
* @param name the key for the bson data.
* @param bson the bson object to append.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_bson( bson *b, const char *name, const bson *bson );
/**
* Append a BSON element to a bson from the current point of an iterator.
*
* @param b the bson to append to.
* @param name_or_null the key for the BSON element, or NULL.
* @param elem the bson_iterator.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_element( bson *b, const char *name_or_null, const bson_iterator *elem );
/**
* Append a bson_timestamp_t value to a bson.
*
* @param b the bson to append to.
* @param name the key for the timestampe value.
* @param ts the bson_timestamp_t value to append.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_timestamp( bson *b, const char *name, bson_timestamp_t *ts );
MONGO_EXPORT int bson_append_timestamp2( bson *b, const char *name, int time, int increment );
/* these both append a bson_date */
/**
* Append a bson_date_t value to a bson.
*
* @param b the bson to append to.
* @param name the key for the date value.
* @param millis the bson_date_t to append.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_date( bson *b, const char *name, bson_date_t millis );
/**
* Append a time_t value to a bson.
*
* @param b the bson to append to.
* @param name the key for the date value.
* @param secs the time_t to append.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_time_t( bson *b, const char *name, time_t secs );
/**
* Start appending a new object to a bson.
*
* @param b the bson to append to.
* @param name the name of the new object.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_start_object( bson *b, const char *name );
/**
* Start appending a new array to a bson.
*
* @param b the bson to append to.
* @param name the name of the new array.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_start_array( bson *b, const char *name );
/**
* Finish appending a new object or array to a bson.
*
* @param b the bson to append to.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_finish_object( bson *b );
/**
* Finish appending a new object or array to a bson. This
* is simply an alias for bson_append_finish_object.
*
* @param b the bson to append to.
*
* @return BSON_OK or BSON_ERROR.
*/
MONGO_EXPORT int bson_append_finish_array( bson *b );
void bson_numstr( char *str, int i );
void bson_incnumstr( char *str );
/* Error handling and standard library function over-riding. */
/* -------------------------------------------------------- */
/* bson_err_handlers shouldn't return!!! */
typedef void( *bson_err_handler )( const char *errmsg );
typedef int (*bson_printf_func)( const char *, ... );
typedef int (*bson_fprintf_func)( FILE *, const char *, ... );
typedef int (*bson_sprintf_func)( char *, const char *, ... );
extern void *( *bson_malloc_func )( size_t );
extern void *( *bson_realloc_func )( void *, size_t );
extern void ( *bson_free_func )( void * );
extern bson_printf_func bson_printf;
extern bson_fprintf_func bson_fprintf;
extern bson_sprintf_func bson_sprintf;
extern bson_printf_func bson_errprintf;
MONGO_EXPORT void bson_free( void *ptr );
/**
* Allocates memory and checks return value, exiting fatally if malloc() fails.
*
* @param size bytes to allocate.
*
* @return a pointer to the allocated memory.
*
* @sa malloc(3)
*/
MONGO_EXPORT void *bson_malloc( int size );
/**
* Changes the size of allocated memory and checks return value,
* exiting fatally if realloc() fails.
*
* @param ptr pointer to the space to reallocate.
* @param size bytes to allocate.
*
* @return a pointer to the allocated memory.
*
* @sa realloc()
*/
void *bson_realloc( void *ptr, int size );
/**
* Set a function for error handling.
*
* @param func a bson_err_handler function.
*
* @return the old error handling function, or NULL.
*/
MONGO_EXPORT bson_err_handler set_bson_err_handler( bson_err_handler func );
/* does nothing if ok != 0 */
/**
* Exit fatally.
*
* @param ok exits if ok is equal to 0.
*/
void bson_fatal( int ok );
/**
* Exit fatally with an error message.
*
* @param ok exits if ok is equal to 0.
* @param msg prints to stderr before exiting.
*/
void bson_fatal_msg( int ok, const char *msg );
/**
* Invoke the error handler, but do not exit.
*
* @param b the buffer object.
*/
void bson_builder_error( bson *b );
/**
* Cast an int64_t to double. This is necessary for embedding in
* certain environments.
*
*/
MONGO_EXPORT double bson_int64_to_double( int64_t i64 );
MONGO_EXPORT void bson_swap_endian32( void *outp, const void *inp );
MONGO_EXPORT void bson_swap_endian64( void *outp, const void *inp );
MONGO_EXTERN_C_END
#endif