libguile/stime.h

   1 /* classes: h_files */
   2
   3 #ifndef SCM_STIME_H
   4 #define SCM_STIME_H
   5
   6 /* Copyright (C) 1995,1996,1997,1998,2000, 2003, 2006, 2008 Free Software Foundation, Inc.
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public License
  10  * as published by the Free Software Foundation; either version 3 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  21  * 02110-1301 USA
  22  */
  23
  24 \f
  25
  26 #include "libguile/__scm.h"
  27
  28 #include <unistd.h>  /* for sysconf */
  29
  30 \f
  31
  32 /* This should be figured out by autoconf.
  33
  34    sysconf(_SC_CLK_TCK) is best, since it's the actual running kernel, not
  35    some compile-time CLK_TCK.  On glibc 2.3.2 CLK_TCK (when defined) is in
  36    fact sysconf(_SC_CLK_TCK) anyway.
  37
  38    CLK_TCK is obsolete in POSIX.  In glibc 2.3.2 it's defined by default,
  39    but if you define _GNU_SOURCE or _POSIX_C_SOURCE to get other features
  40    then it goes away.  */
  41
  42 #if ! defined(SCM_TIME_UNITS_PER_SECOND) && defined(_SC_CLK_TCK)
  43 #  define SCM_TIME_UNITS_PER_SECOND ((int) sysconf (_SC_CLK_TCK))
  44 #endif
  45 #if ! defined(SCM_TIME_UNITS_PER_SECOND) && defined(CLK_TCK)
  46 #  define SCM_TIME_UNITS_PER_SECOND ((int) CLK_TCK)
  47 #endif
  48 #if ! defined(SCM_TIME_UNITS_PER_SECOND) && defined(CLOCKS_PER_SEC)
  49 #  define SCM_TIME_UNITS_PER_SECOND ((int) CLOCKS_PER_SEC)
  50 #endif
  51 #if ! defined(SCM_TIME_UNITS_PER_SECOND)
  52 #  define SCM_TIME_UNITS_PER_SECOND 60
  53 #endif
  54
  55 \f
  56 SCM_API long scm_c_get_internal_run_time (void);
  57 SCM_API SCM scm_get_internal_real_time (void);
  58 SCM_API SCM scm_get_internal_run_time (void);
  59 SCM_API SCM scm_current_time (void);
  60 SCM_API SCM scm_gettimeofday (void);
  61 SCM_API SCM scm_localtime (SCM time, SCM zone);
  62 SCM_API SCM scm_gmtime (SCM time);
  63 SCM_API SCM scm_mktime (SCM sbd_time, SCM zone);
  64 SCM_API SCM scm_tzset (void);
  65 SCM_API SCM scm_times (void);
  66 SCM_API SCM scm_strftime (SCM format, SCM stime);
  67 SCM_API SCM scm_strptime (SCM format, SCM string);
  68 SCM_INTERNAL void scm_init_stime (void);
  69
  70 #endif  /* SCM_STIME_H */
  71
  72 /*
  73   Local Variables:
  74   c-file-style: "gnu"
  75   End:
  76 */