/*
 * 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_COMPAT_H
#define BSON_COMPAT_H


#if !defined (BSON_INSIDE) && !defined (BSON_COMPILATION)
# error "Only <bson.h> can be included directly."
#endif


#include "bson-config.h"
#include "bson-macros.h"


#ifdef BSON_OS_WIN32
# if defined(_WIN32_WINNT) && (_WIN32_WINNT < 0x0600)
#  undef _WIN32_WINNT
# endif
# ifndef _WIN32_WINNT
#  define _WIN32_WINNT 0x0600
# endif
# include <winsock2.h>
#  ifndef WIN32_LEAN_AND_MEAN
#   define WIN32_LEAN_AND_MEAN
#   include <windows.h>
#   undef  WIN32_LEAN_AND_MEAN
#  else
#   include <windows.h>
# endif
#include <direct.h>
#include <io.h>
#endif


#ifdef BSON_OS_UNIX
# include <unistd.h>
# include <sys/time.h>
#endif


#include "bson-macros.h"


#include <errno.h>
#include <ctype.h>
#include <limits.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>


BSON_BEGIN_DECLS


#ifdef _MSC_VER
# include "bson-stdint-win32.h"
# ifndef __cplusplus
   /* benign redefinition of type */
#  pragma warning (disable :4142)
#  ifndef _SSIZE_T_DEFINED
#   define _SSIZE_T_DEFINED
    typedef SSIZE_T ssize_t;
#  endif
    typedef SIZE_T size_t;
#  pragma warning (default :4142)
# else
    /*
     * MSVC++ does not include ssize_t, just size_t.
     * So we need to synthesize that as well.
     */
#  pragma warning (disable :4142)
#  ifndef _SSIZE_T_DEFINED
#   define _SSIZE_T_DEFINED
    typedef SSIZE_T ssize_t;
#  endif
#  pragma warning (default :4142)
# endif
# define PRIi32 "d"
# define PRId32 "d"
# define PRIu32 "u"
# define PRIi64 "I64i"
# define PRId64 "I64i"
# define PRIu64 "I64u"
#else
# include "bson-stdint.h"
# include <inttypes.h>
#endif

#if defined(__MINGW32__) && ! defined(INIT_ONCE_STATIC_INIT)
# define INIT_ONCE_STATIC_INIT RTL_RUN_ONCE_INIT
typedef RTL_RUN_ONCE INIT_ONCE;
#endif

#ifdef BSON_HAVE_STDBOOL_H
# include <stdbool.h>
#elif !defined(__bool_true_false_are_defined)
# ifndef __cplusplus
   typedef signed char bool;
#  define false 0
#  define true 1
# endif
# define __bool_true_false_are_defined 1
#endif


#if defined(__GNUC__)
# if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)
#  define bson_sync_synchronize() __sync_synchronize()
# elif defined(__i386__ ) || defined( __i486__ ) || defined( __i586__ ) || \
          defined( __i686__ ) || defined( __x86_64__ )
#  define bson_sync_synchronize() asm volatile("mfence":::"memory")
# else
#  define bson_sync_synchronize() asm volatile("sync":::"memory")
# endif
#elif defined(_MSC_VER)
# define bson_sync_synchronize() MemoryBarrier()
#endif


#if !defined(va_copy) && defined(_MSC_VER)
# define va_copy(dst,src) ((dst) = (src))
#endif


#if !defined(va_copy) && defined(__GNUC__) && __GNUC__ < 3
# define va_copy(dst,src) __va_copy(dst, src)
#endif


BSON_END_DECLS


#endif /* BSON_COMPAT_H */