1  /* Copyright (C) 2007-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <errno.h>
      19  #include <pthread.h>
      20  #include <semaphore.h>
      21  #include <stdio.h>
      22  #include <time.h>
      23  #include <unistd.h>
      24  #include <sys/time.h>
      25  
      26  
      27  static int
      28  do_test (void)
      29  {
      30    sem_t s;
      31    if (sem_init (&s, 0, 0) == -1)
      32      {
      33        puts ("sem_init failed");
      34        return 1;
      35      }
      36  
      37    struct timeval tv;
      38    if (gettimeofday (&tv, NULL) != 0)
      39      {
      40        puts ("gettimeofday failed");
      41        return 1;
      42      }
      43  
      44    struct timespec ts;
      45    TIMEVAL_TO_TIMESPEC (&tv, &ts);
      46  
      47    /* Set ts to yesterday.  */
      48    ts.tv_sec -= 86400;
      49  
      50    int type_before;
      51    if (pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &type_before) != 0)
      52      {
      53        puts ("first pthread_setcanceltype failed");
      54        return 1;
      55      }
      56  
      57    errno = 0;
      58    if (TEMP_FAILURE_RETRY (sem_timedwait (&s, &ts)) != -1)
      59      {
      60        puts ("sem_timedwait succeeded");
      61        return 1;
      62      }
      63    if (errno != ETIMEDOUT)
      64      {
      65        printf ("sem_timedwait return errno = %d instead of ETIMEDOUT\n",
      66  	      errno);
      67        return 1;
      68      }
      69  
      70    int type_after;
      71    if (pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &type_after) != 0)
      72      {
      73        puts ("second pthread_setcanceltype failed");
      74        return 1;
      75      }
      76    if (type_after != PTHREAD_CANCEL_DEFERRED)
      77      {
      78        puts ("sem_timedwait changed cancellation type");
      79        return 1;
      80      }
      81  
      82    return 0;
      83  }
      84  
      85  #define TEST_FUNCTION do_test ()
      86  #include "../test-skeleton.c"