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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF5.  The full HDF5 copyright notice, including     *
 * terms governing use, modification, and redistribution, is contained in    *
 * the COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/* Programmer:  Scott Wegner
 *              June 3, 2008
 *
 * Purpose: This file is used to map HDF macros to Windows functions.  This
 *          should get included H5private mappings, so as to override them.
 *          Any macro not mapped here, however, will receive a similar mapping
 *          inside H5private.h
 *
 */

/*
 * _MSC_VER = 1900 VS2015
 * _MSC_VER = 1800 VS2013
 * _MSC_VER = 1700 VS2012
 */
#ifdef H5_HAVE_WIN32_API

typedef struct _stati64     h5_stat_t;
typedef __int64             h5_stat_size_t;

#define HDaccess(F,M)       _access(F,M)
#define HDchdir(S)          _chdir(S)
#define HDclose(F)          _close(F)
#define HDcreat(S,M)        Wopen_utf8(S,O_CREAT|O_TRUNC|O_RDWR,M)
#define HDdup(F)            _dup(F)
#define HDfdopen(N,S)       _fdopen(N,S)
#define HDfileno(F)         _fileno(F)
#define HDfstat(F,B)        _fstati64(F,B)
#define HDisatty(F)         _isatty(F)

/* The isnan function needs underscore in VS2012 and earlier */
#if (_MSC_VER <= 1700)
  #define HDisnan(X)      _isnan(X)
#endif /* MSC_VER < 1700 */

#define HDgetcwd(S,Z)       _getcwd(S,Z)
#define HDgetdcwd(D,S,Z)    _getdcwd(D,S,Z)
#define HDgetdrive()        _getdrive()
#define HDlseek(F,O,W)      _lseeki64(F,O,W)
#define HDlstat(S,B)        _lstati64(S,B)
#define HDmkdir(S,M)        _mkdir(S)
#define HDnanosleep(N, O)   Wnanosleep(N, O)
#define HDoff_t             __int64

/* Note that the variadic HDopen macro is using a VC++ extension
 * where the comma is dropped if nothing is passed to the ellipsis.
 */
#ifndef H5_HAVE_MINGW
#define HDopen(S,F,...)     Wopen_utf8(S,F,__VA_ARGS__)
#else
#define HDopen(S,F,...)     Wopen_utf8(S,F,##__VA_ARGS__)
#endif
#define HDread(F,M,Z)       _read(F,M,Z)
#define HDremove(S)         Wremove_utf8(S)
#define HDrmdir(S)          _rmdir(S)
#define HDsetvbuf(F,S,M,Z)  setvbuf(F,S,M,(Z>1?Z:2))
#define HDsleep(S)          Sleep(S*1000)
#define HDstat(S,B)         _stati64(S,B)
#define HDstrcasecmp(A,B)   _stricmp(A,B)
#define HDstrdup(S)         _strdup(S)
#define HDstrtok_r(X,Y,Z)   strtok_s(X,Y,Z)
#define HDtzset()           _tzset()
#define HDunlink(S)         _unlink(S)
#define HDwrite(F,M,Z)      _write(F,M,Z)

#ifdef H5_HAVE_VISUAL_STUDIO

#if (_MSC_VER < 1800)
  #ifndef H5_HAVE_STRTOLL
    #define HDstrtoll(S,R,N)    _strtoi64(S,R,N)
  #endif /* H5_HAVE_STRTOLL */
  #ifndef H5_HAVE_STRTOULL
    #define HDstrtoull(S,R,N)   _strtoui64(S,R,N)
  #endif /* H5_HAVE_STRTOULL */
  /* va_copy() does not exist on pre-2013 Visual Studio. Since va_lists are
   * just pointers into the stack in those CRTs, the usual work-around
   * is to just define the operation as a pointer copy.
   */
  #define HDva_copy(D,S)      ((D) = (S))
#endif /* MSC_VER < 1800 */

/*
 * The (void*) cast just avoids a compiler warning in H5_HAVE_VISUAL_STUDIO
 */
#define HDmemset(X,C,Z)     memset((void*)(X),C,Z)

struct timezone {
    int tz_minuteswest;
    int tz_dsttime;
};

/* time.h before VS2015 does not include timespec */
#if (_MSC_VER < 1900)
struct timespec
{
    time_t tv_sec;  /* Seconds - >= 0 */
    long   tv_nsec; /* Nanoseconds - [0, 999999999] */
};
#endif /* MSC_VER < 1900 */

/* The round functions do not exist in VS2012 and earlier */
#if (_MSC_VER <= 1700)
#define HDllround(V)        Wllround(V)
#define HDllroundf(V)       Wllroundf(V)
#define HDlround(V)         Wlround(V)
#define HDlroundf(V)        Wlroundf(V)
#define HDround(V)          Wround(V)
#define HDroundf(V)         Wroundf(V)
#endif /* MSC_VER < 1700 */

#endif /* H5_HAVE_VISUAL_STUDIO */


#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
    H5_DLL int Wgettimeofday(struct timeval *tv, struct timezone *tz);
    H5_DLL int Wsetenv(const char *name, const char *value, int overwrite);
    H5_DLL int Wflock(int fd, int operation);
    H5_DLL char* Wgetlogin(void);
    H5_DLL int c99_snprintf(char* str, size_t size, const char* format, ...);
    H5_DLL int c99_vsnprintf(char* str, size_t size, const char* format, va_list ap);
    H5_DLL int Wnanosleep(const struct timespec *req, struct timespec *rem);
    H5_DLL herr_t H5_expand_windows_env_vars(char **env_var);
    H5_DLL const wchar_t *H5_get_utf16_str(const char *s);
    H5_DLL int Wopen_utf8(const char *path, int oflag, ...);
    H5_DLL int Wremove_utf8(const char *path);

    /* Round functions only needed for VS2012 and earlier.
     * They are always built to ensure they don't go stale and
     * can be deleted (along with their #defines, above) when we
     * drop VS2012 support.
     */
    H5_DLL long long Wllround(double arg);
    H5_DLL long long Wllroundf(float arg);
    H5_DLL long Wlround(double arg);
    H5_DLL long Wlroundf(float arg);
    H5_DLL double Wround(double arg);
    H5_DLL float Wroundf(float arg);
#ifdef __cplusplus
}
#endif /* __cplusplus */

#define HDgettimeofday(V,Z) Wgettimeofday(V,Z)
#define HDsetenv(N,V,O)     Wsetenv(N,V,O)
#define HDflock(F,L)        Wflock(F,L)
#define HDgetlogin()        Wgetlogin()
#define HDsnprintf          c99_snprintf /*varargs*/
#define HDvsnprintf         c99_vsnprintf /*varargs*/

/* Non-POSIX functions */

#ifndef H5_HAVE_MINGW
#define HDftruncate(F,L)    _chsize_s(F,L)
#define HDfseek(F,O,W)      _fseeki64(F,O,W)
#endif /* H5_HAVE_MINGW */

#endif /* H5_HAVE_WIN32_API */