nptl/tst-cond5.c

   1 /* Copyright (C) 2002 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <errno.h>
  21 #include <pthread.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <time.h>
  26 #include <sys/time.h>
  27
  28
  29 static pthread_mutex_t mut;
  30 static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
  31
  32
  33 static int
  34 do_test (void)
  35 {
  36   pthread_mutexattr_t ma;
  37   int err;
  38   struct timespec ts;
  39   struct timeval tv;
  40
  41   if (pthread_mutexattr_init (&ma) != 0)
  42     {
  43       puts ("mutexattr_init failed");
  44       exit (1);
  45     }
  46
  47   if (pthread_mutexattr_settype (&ma, PTHREAD_MUTEX_ERRORCHECK) != 0)
  48     {
  49       puts ("mutexattr_settype failed");
  50       exit (1);
  51     }
  52
  53   if (pthread_mutex_init (&mut, &ma) != 0)
  54     {
  55       puts ("mutex_init failed");
  56       exit (1);
  57     }
  58
  59   /* Get the mutex.  */
  60   if (pthread_mutex_lock (&mut) != 0)
  61     {
  62       puts ("mutex_lock failed");
  63       exit (1);
  64     }
  65
  66   /* Waiting for the condition will fail.  But we want the timeout here.  */
  67   if (gettimeofday (&tv, NULL) != 0)
  68     {
  69       puts ("gettimeofday failed");
  70       exit (1);
  71     }
  72
  73   TIMEVAL_TO_TIMESPEC (&tv, &ts);
  74   ts.tv_nsec += 500000000;
  75   if (ts.tv_nsec >= 1000000000)
  76     {
  77       ts.tv_nsec -= 1000000000;
  78       ++ts.tv_sec;
  79     }
  80   err = pthread_cond_timedwait (&cond, &mut, &ts);
  81   if (err == 0)
  82     {
  83       /* This could in theory happen but here without any signal and
  84          additional waiter it should not.  */
  85       puts ("cond_timedwait succeeded");
  86       exit (1);
  87     }
  88   else if (err != ETIMEDOUT)
  89     {
  90       printf ("cond_timedwait returned with %s\n", strerror (err));
  91       exit (1);
  92     }
  93
  94   err = pthread_mutex_unlock (&mut);
  95   if (err != 0)
  96     {
  97       printf ("mutex_unlock failed: %s\n", strerror (err));
  98       exit (1);
  99     }
 100
 101   return 0;
 102 }
 103
 104
 105 #define TEST_FUNCTION do_test ()
 106 #include "../test-skeleton.c"