lib/replace/system/time.h

   1 #ifndef _system_time_h
   2 #define _system_time_h
   3 /*
   4    Unix SMB/CIFS implementation.
   5
   6    time system include wrappers
   7
   8    Copyright (C) Andrew Tridgell 2004
   9
  10      ** NOTE! The following LGPL license applies to the replace
  11      ** library. This does NOT imply that all of Samba is released
  12      ** under the LGPL
  13
  14    This library is free software; you can redistribute it and/or
  15    modify it under the terms of the GNU Lesser General Public
  16    License as published by the Free Software Foundation; either
  17    version 3 of the License, or (at your option) any later version.
  18
  19    This library is distributed in the hope that it will be useful,
  20    but WITHOUT ANY WARRANTY; without even the implied warranty of
  21    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  22    Lesser General Public License for more details.
  23
  24    You should have received a copy of the GNU Lesser General Public
  25    License along with this library; if not, see <http://www.gnu.org/licenses/>.
  26
  27 */
  28
  29 #ifdef TIME_WITH_SYS_TIME
  30 #include <sys/time.h>
  31 #include <time.h>
  32 #else
  33 #ifdef HAVE_SYS_TIME_H
  34 #include <sys/time.h>
  35 #else
  36 #include <time.h>
  37 #endif
  38 #endif
  39
  40 #ifdef HAVE_UTIME_H
  41 #include <utime.h>
  42 #else
  43 struct utimbuf {
  44         time_t actime;       /* access time */
  45         time_t modtime;      /* modification time */
  46 };
  47 #endif
  48
  49 #ifndef HAVE_STRUCT_TIMESPEC
  50 struct timespec {
  51         time_t tv_sec;            /* Seconds.  */
  52         long tv_nsec;           /* Nanoseconds.  */
  53 };
  54 #endif
  55
  56 #ifndef HAVE_MKTIME
  57 /* define is in "replace.h" */
  58 time_t rep_mktime(struct tm *t);
  59 #endif
  60
  61 #ifndef HAVE_TIMEGM
  62 /* define is in "replace.h" */
  63 time_t rep_timegm(struct tm *tm);
  64 #endif
  65
  66 #ifndef HAVE_UTIME
  67 /* define is in "replace.h" */
  68 int rep_utime(const char *filename, const struct utimbuf *buf);
  69 #endif
  70
  71 #ifndef HAVE_UTIMES
  72 /* define is in "replace.h" */
  73 int rep_utimes(const char *filename, const struct timeval tv[2]);
  74 #endif
  75
  76 #ifndef HAVE_CLOCK_GETTIME
  77 /* CLOCK_REALTIME is required by POSIX */
  78 #define CLOCK_REALTIME 0
  79 typedef int clockid_t;
  80 int rep_clock_gettime(clockid_t clk_id, struct timespec *tp);
  81 #endif
  82 /* make sure we have a best effort CUSTOM_CLOCK_MONOTONIC we can rely on.
  83  *
  84  * on AIX the values of CLOCK_* are cast expressions, not integer constants,
  85  * this prevents them from being compared against in a preprocessor directive.
  86  * The following ...IS_* macros can be used to check which clock is in use.
  87  */
  88 #if defined(CLOCK_MONOTONIC)
  89 #define CUSTOM_CLOCK_MONOTONIC CLOCK_MONOTONIC
  90 #define CUSTOM_CLOCK_MONOTONIC_IS_MONOTONIC
  91 #elif defined(CLOCK_HIGHRES)
  92 #define CUSTOM_CLOCK_MONOTONIC CLOCK_HIGHRES
  93 #define CUSTOM_CLOCK_MONOTONIC_IS_HIGHRES
  94 #else
  95 #define CUSTOM_CLOCK_MONOTONIC CLOCK_REALTIME
  96 #define CUSTOM_CLOCK_MONOTONIC_IS_REALTIME
  97 #endif
  98
  99 #endif