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glibc  2.9
tst-sem10.c
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00001 /* Copyright (C) 2007 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Jakub Jelinek <jakub@redhat.com>, 2007.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <errno.h>
00021 #include <pthread.h>
00022 #include <semaphore.h>
00023 #include <stdio.h>
00024 #include <time.h>
00025 #include <unistd.h>
00026 #include <sys/time.h>
00027 
00028 
00029 static int
00030 do_test (void)
00031 {
00032   sem_t s;
00033   if (sem_init (&s, 0, 0) == -1)
00034     {
00035       puts ("sem_init failed");
00036       return 1;
00037     }
00038 
00039   struct timeval tv;
00040   if (gettimeofday (&tv, NULL) != 0)
00041     {
00042       puts ("gettimeofday failed");
00043       return 1;
00044     }
00045 
00046   struct timespec ts;
00047   TIMEVAL_TO_TIMESPEC (&tv, &ts);
00048 
00049   /* Set ts to yesterday.  */
00050   ts.tv_sec -= 86400;
00051 
00052   int type_before;
00053   if (pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &type_before) != 0)
00054     {
00055       puts ("first pthread_setcanceltype failed");
00056       return 1;
00057     }
00058 
00059   errno = 0;
00060   if (TEMP_FAILURE_RETRY (sem_timedwait (&s, &ts)) != -1)
00061     {
00062       puts ("sem_timedwait succeeded");
00063       return 1;
00064     }
00065   if (errno != ETIMEDOUT)
00066     {
00067       printf ("sem_timedwait return errno = %d instead of ETIMEDOUT\n",
00068              errno);
00069       return 1;
00070     }
00071 
00072   int type_after;
00073   if (pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &type_after) != 0)
00074     {
00075       puts ("second pthread_setcanceltype failed");
00076       return 1;
00077     }
00078   if (type_after != PTHREAD_CANCEL_DEFERRED)
00079     {
00080       puts ("sem_timedwait changed cancellation type");
00081       return 1;
00082     }
00083 
00084   return 0;
00085 }
00086 
00087 #define TEST_FUNCTION do_test ()
00088 #include "../test-skeleton.c"