nptl/tst-cancel15.c

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