2     util.h - utility functions
3     Copyright (C) 2016-2020, Przemyslaw Skibinski, Yann Collet
17     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
29 /*-****************************************
32 #include "platform.h"     /* PLATFORM_POSIX_VERSION */
33 #include <stddef.h>       /* size_t, ptrdiff_t */
34 #include <stdlib.h>       /* malloc */
35 #include <string.h>       /* strlen, strncpy */
36 #include <stdio.h>        /* fprintf, fileno */
37 #include <assert.h>
38 #include <sys/types.h>    /* stat, utime */
39 #include <sys/stat.h>     /* stat */
41 #  include <sys/utime.h>  /* utime */
42 #  include <io.h>         /* _chmod */
44 #  include <unistd.h>     /* chown, stat */
46 #  include <utime.h>      /* utime */
48 #  include <fcntl.h>      /* AT_FDCWD */
49 #  include <sys/stat.h>   /* for utimensat */
52 #include <time.h>         /* time */
53 #include <limits.h>       /* INT_MAX */
54 #include <errno.h>
58 /*-**************************************************************
62 # include <stdint.h>
95 /*-****************************************
96 *  Sleep functions: Windows - Posix - others
99 #  include <windows.h>
103 #elif PLATFORM_POSIX_VERSION >= 0 /* Unix-like operating system */
104 #  include <unistd.h>
105 #  include <sys/resource.h> /* setpriority */
106 #  include <time.h>         /* clock_t, nanosleep, clock, CLOCKS_PER_SEC */
108 #    define SET_REALTIME_PRIORITY setpriority(PRIO_PROCESS, 0, -20)
113 …_VERSION >= 199309L)) || (PLATFORM_POSIX_VERSION >= 200112L)  /* nanosleep requires POSIX.1-2001 */
125 /*-****************************************
146 /*-****************************************
161 /*-****************************************
178 /*-****************************************
194         return 1000000ULL*(clockEnd.QuadPart - clockStart.QuadPart)/ticksPerSecond.QuadPart;  in UTIL_getSpanTimeMicro()
205         return 1000000000ULL*(clockEnd.QuadPart - clockStart.QuadPart)/ticksPerSecond.QuadPart;  in UTIL_getSpanTimeNano()
210     #include <mach/mach_time.h>
221         return (((clockEnd - clockStart) * (U64)rate.numer) / ((U64)rate.denom)) / 1000ULL;  in UTIL_getSpanTimeMicro()
231         return ((clockEnd - clockStart) * (U64)rate.numer) / ((U64)rate.denom);  in UTIL_getSpanTimeNano()
236     #include <time.h>
249             diff.tv_sec = (end.tv_sec - 1) - begin.tv_sec;  in UTIL_getSpanTime()
250             diff.tv_nsec = (end.tv_nsec + 1000000000ULL) - begin.tv_nsec;  in UTIL_getSpanTime()
252             diff.tv_sec = end.tv_sec - begin.tv_sec;  in UTIL_getSpanTime()
253             diff.tv_nsec = end.tv_nsec - begin.tv_nsec;  in UTIL_getSpanTime()
274 #else   /* relies on standard C (note : clock_t measurements can be wrong when using multi-threadin…
278 …IL_time_t clockStart, UTIL_time_t clockEnd) { return 1000000ULL * (clockEnd - clockStart) / CLOCKS…  in UTIL_getSpanTimeMicro()
279 …time_t clockStart, UTIL_time_t clockEnd) { return 1000000000ULL * (clockEnd - clockStart) / CLOCKS…  in UTIL_getSpanTimeNano()
308 /*-****************************************
327         return -1;  in UTIL_setFileStat()
333         timebuf.modtime = statbuf->st_mtime;  in UTIL_setFileStat()
339         timebuf[1].tv_sec = statbuf->st_mtime;  in UTIL_setFileStat()
345     res += chown(filename, statbuf->st_uid, statbuf->st_gid);  /* Copy ownership */  in UTIL_setFileStat()
348     res += chmod(filename, statbuf->st_mode & 07777);  /* Copy file permissions */  in UTIL_setFileStat()
351     return -res; /* number of errors is returned */  in UTIL_setFileStat()
360     if (r || !(statbuf->st_mode & S_IFREG)) return 0;   /* No good... */  in UTIL_getFileStat()
363     if (r || !S_ISREG(statbuf->st_mode)) return 0;   /* No good... */  in UTIL_getFileStat()
487                 ptrdiff_t newListSize = (*bufEnd - *bufStart) + LIST_SIZE_INCREASE;  in UTIL_prepareFileList()
493                 strncpy(*bufStart + *pos, path, *bufEnd - (*bufStart + *pos));  in UTIL_prepareFileList()
506 …ined(__linux__) || (PLATFORM_POSIX_VERSION >= 200112L)  /* opendir, readdir require POSIX.1-2001 */
508 #  include <dirent.h>       /* opendir, readdir */
509 #  include <string.h>       /* strerror, memcpy */
528         if (strcmp (entry->d_name, "..") == 0 ||  in UTIL_prepareFileList()
529             strcmp (entry->d_name, ".") == 0) continue;  in UTIL_prepareFileList()
530         fnameLength = strlen(entry->d_name);  in UTIL_prepareFileList()
535         memcpy(path+dirLength+1, entry->d_name, fnameLength);  in UTIL_prepareFileList()
544                 size_t const newListSize = (size_t)(*bufEnd - *bufStart) + LIST_SIZE_INCREASE;  in UTIL_prepareFileList()
550                 strncpy(*bufStart + *pos, path, *bufEnd - (*bufStart + *pos));  in UTIL_prepareFileList()
580 …* UTIL_createFileList - takes a list of files and directories (params: inputNames, inputNamesNb), …
614             bufSize = (size_t)(bufend - buf);  in UTIL_createFileList()