nptl/tst-cancel15.c

   1 /* Copyright (C) 2003-2015 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
   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 <stdlib.h>
  24 #include <string.h>
  25 #include <unistd.h>
  26 #include <sys/time.h>
  27
  28
  29 static pthread_barrier_t bar;
  30 static sem_t sem;
  31
  32
  33 static void
  34 cleanup (void *arg)
  35 {
  36   static int ncall;
  37
  38   if (++ncall != 1)
  39     {
  40       puts ("second call to cleanup");
  41       exit (1);
  42     }
  43
  44   printf ("cleanup call #%d\n", ncall);
  45 }
  46
  47
  48 static void *
  49 tf (void *arg)
  50 {
  51   int e;
  52
  53   pthread_cleanup_push (cleanup, NULL);
  54
  55   e = pthread_barrier_wait (&bar);
  56   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
  57     {
  58       puts ("tf: 1st barrier_wait failed");
  59       exit (1);
  60     }
  61
  62   struct timeval tv;
  63   (void) gettimeofday (&tv, NULL);
  64
  65   struct timespec ts;
  66   TIMEVAL_TO_TIMESPEC (&tv, &ts);
  67
  68   /* Timeout in 5 seconds.  */
  69   ts.tv_sec += 5;
  70
  71   /* This call should block and be cancelable.  */
  72   errno = 0;
  73   e = sem_timedwait (&sem, &ts);
  74
  75   pthread_cleanup_pop (0);
  76
  77   printf ("sem_timedwait returned, e = %d, errno = %d\n", e, errno);
  78
  79   return NULL;
  80 }
  81
  82
  83 static int
  84 do_test (void)
  85 {
  86   pthread_t th;
  87
  88   if (pthread_barrier_init (&bar, NULL, 2) != 0)
  89     {
  90       puts ("barrier_init failed");
  91       exit (1);
  92     }
  93
  94   if (sem_init (&sem, 0, 0) != 0)
  95     {
  96       puts ("sem_init failed");
  97       exit (1);
  98     }
  99
 100   if (pthread_create (&th, NULL, tf, NULL) != 0)
 101     {
 102       puts ("create failed");
 103       exit (1);
 104     }
 105
 106   int e = pthread_barrier_wait (&bar);
 107   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
 108     {
 109       puts ("1st barrier_wait failed");
 110       exit (1);
 111     }
 112
 113   /* Give the child a chance to go to sleep in sem_wait.  */
 114   sleep (1);
 115
 116   /* Check whether cancellation is honored when waiting in sem_timedwait.  */
 117   if (pthread_cancel (th) != 0)
 118     {
 119       puts ("1st cancel failed");
 120       exit (1);
 121     }
 122
 123   void *r;
 124   if (pthread_join (th, &r) != 0)
 125     {
 126       puts ("join failed");
 127       exit (1);
 128     }
 129
 130   if (r != PTHREAD_CANCELED)
 131     {
 132       puts ("thread not canceled");
 133       exit (1);
 134     }
 135
 136   return 0;
 137 }
 138
 139
 140 #define TEST_FUNCTION do_test ()
 141 #include "../test-skeleton.c"