nptl/tst-cancel14.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   pthread_cleanup_push (cleanup, NULL);
  52
  53   int e = pthread_barrier_wait (&bar);
  54   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
  55     {
  56       puts ("tf: 1st barrier_wait failed");
  57       exit (1);
  58     }
  59
  60   struct timeval tv;
  61   (void) gettimeofday (&tv, NULL);
  62
  63   struct timespec ts;
  64   TIMEVAL_TO_TIMESPEC (&tv, &ts);
  65
  66   /* Timeout in 5 seconds.  */
  67   ts.tv_sec += 5;
  68
  69   /* This call should block and be cancelable.  */
  70   sem_timedwait (&sem, &ts);
  71
  72   pthread_cleanup_pop (0);
  73
  74   puts ("sem_timedwait returned");
  75
  76   return NULL;
  77 }
  78
  79
  80 static int
  81 do_test (void)
  82 {
  83   pthread_t th;
  84
  85   if (pthread_barrier_init (&bar, NULL, 2) != 0)
  86     {
  87       puts ("barrier_init failed");
  88       exit (1);
  89     }
  90
  91   if (sem_init (&sem, 0, 1) != 0)
  92     {
  93       puts ("sem_init failed");
  94       exit (1);
  95     }
  96
  97   if (pthread_create (&th, NULL, tf, NULL) != 0)
  98     {
  99       puts ("create failed");
 100       exit (1);
 101     }
 102
 103   /* Check whether cancellation is honored even before sem_timedwait does
 104      anything.  */
 105   if (pthread_cancel (th) != 0)
 106     {
 107       puts ("1st cancel failed");
 108       exit (1);
 109     }
 110
 111   int e = pthread_barrier_wait (&bar);
 112   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
 113     {
 114       puts ("1st barrier_wait failed");
 115       exit (1);
 116     }
 117
 118   void *r;
 119   if (pthread_join (th, &r) != 0)
 120     {
 121       puts ("join failed");
 122       exit (1);
 123     }
 124
 125   if (r != PTHREAD_CANCELED)
 126     {
 127       puts ("thread not canceled");
 128       exit (1);
 129     }
 130
 131   return 0;
 132 }
 133
 134
 135 #define TEST_FUNCTION do_test ()
 136 #include "../test-skeleton.c"