support/time.c

   1 /*
   2  * <time.h> wrapper functions.
   3  *
   4  * Authors:
   5  *   Jonathan Pryor (jonpryor@vt.edu)
   6  *
   7  * Copyright (C) 2004 Jonathan Pryor
   8  */
   9
  10 #define _SVID_SOURCE
  11 #include <time.h>
  12 #include <errno.h>
  13
  14 #include "map.h"
  15 #include "mph.h"
  16 #include <glib.h>
  17
  18 G_BEGIN_DECLS
  19
  20 #if defined(HAVE_STRUCT_TIMESPEC) && _POSIX_C_SOURCE >= 199309L
  21 int
  22 Mono_Posix_Syscall_nanosleep (struct Mono_Posix_Timespec *req,
  23                 struct Mono_Posix_Timespec *rem)
  24 {
  25         struct timespec _req, _rem, *prem = NULL;
  26         int r;
  27
  28         if (req == NULL) {
  29                 errno = EFAULT;
  30                 return -1;
  31         }
  32
  33         if (Mono_Posix_FromTimespec (req, &_req) == -1)
  34                 return -1;
  35
  36         if (rem) {
  37                 if (Mono_Posix_FromTimespec (rem, &_rem) == -1)
  38                         return -1;
  39                 prem = &_rem;
  40         }
  41
  42         r = nanosleep (&_req, prem);
  43
  44         if (rem && Mono_Posix_ToTimespec (prem, rem) == -1)
  45                 return -1;
  46
  47         return r;
  48 }
  49 #endif
  50
  51 #ifdef HAVE_STIME
  52 gint32
  53 Mono_Posix_Syscall_stime (mph_time_t *t)
  54 {
  55         time_t _t;
  56         if (t == NULL) {
  57                 errno = EFAULT;
  58                 return -1;
  59         }
  60         mph_return_if_time_t_overflow (*t);
  61         _t = (time_t) *t;
  62         return stime (&_t);
  63 }
  64 #endif /* ndef HAVE_STIME */
  65
  66 mph_time_t
  67 Mono_Posix_Syscall_time (mph_time_t *t)
  68 {
  69         time_t _t, r;
  70         if (t == NULL) {
  71                 errno = EFAULT;
  72                 return -1;
  73         }
  74
  75         mph_return_if_time_t_overflow (*t);
  76
  77         _t = (time_t) *t;
  78         r = time (&_t);
  79         *t = _t;
  80
  81         return r;
  82 }
  83
  84 G_END_DECLS
  85
  86 /*
  87  * vim: noexpandtab
  88  */