nptl/tst-sem10.c

   1 /* Copyright (C) 2007-2017 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Jakub Jelinek <jakub@redhat.com>, 2007.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <pthread.h>
  21 #include <semaphore.h>
  22 #include <stdio.h>
  23 #include <time.h>
  24 #include <unistd.h>
  25 #include <sys/time.h>
  26
  27
  28 static int
  29 do_test (void)
  30 {
  31   sem_t s;
  32   if (sem_init (&s, 0, 0) == -1)
  33     {
  34       puts ("sem_init failed");
  35       return 1;
  36     }
  37
  38   struct timeval tv;
  39   if (gettimeofday (&tv, NULL) != 0)
  40     {
  41       puts ("gettimeofday failed");
  42       return 1;
  43     }
  44
  45   struct timespec ts;
  46   TIMEVAL_TO_TIMESPEC (&tv, &ts);
  47
  48   /* Set ts to yesterday.  */
  49   ts.tv_sec -= 86400;
  50
  51   int type_before;
  52   if (pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &type_before) != 0)
  53     {
  54       puts ("first pthread_setcanceltype failed");
  55       return 1;
  56     }
  57
  58   errno = 0;
  59   if (TEMP_FAILURE_RETRY (sem_timedwait (&s, &ts)) != -1)
  60     {
  61       puts ("sem_timedwait succeeded");
  62       return 1;
  63     }
  64   if (errno != ETIMEDOUT)
  65     {
  66       printf ("sem_timedwait return errno = %d instead of ETIMEDOUT\n",
  67               errno);
  68       return 1;
  69     }
  70
  71   int type_after;
  72   if (pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &type_after) != 0)
  73     {
  74       puts ("second pthread_setcanceltype failed");
  75       return 1;
  76     }
  77   if (type_after != PTHREAD_CANCEL_DEFERRED)
  78     {
  79       puts ("sem_timedwait changed cancellation type");
  80       return 1;
  81     }
  82
  83   return 0;
  84 }
  85
  86 #define TEST_FUNCTION do_test ()
  87 #include "../test-skeleton.c"