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glibc  2.9
tst-cancel14.c
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00001 /* Copyright (C) 2003 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
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 <stdlib.h>
00025 #include <string.h>
00026 #include <unistd.h>
00027 
00028 
00029 static pthread_barrier_t bar;
00030 static sem_t sem;
00031 
00032 
00033 static void
00034 cleanup (void *arg)
00035 {
00036   static int ncall;
00037 
00038   if (++ncall != 1)
00039     {
00040       puts ("second call to cleanup");
00041       exit (1);
00042     }
00043 
00044   printf ("cleanup call #%d\n", ncall);
00045 }
00046 
00047 
00048 static void *
00049 tf (void *arg)
00050 {
00051   pthread_cleanup_push (cleanup, NULL);
00052 
00053   int e = pthread_barrier_wait (&bar);
00054   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
00055     {
00056       puts ("tf: 1st barrier_wait failed");
00057       exit (1);
00058     }
00059 
00060   struct timeval tv;
00061   (void) gettimeofday (&tv, NULL);
00062 
00063   struct timespec ts;
00064   TIMEVAL_TO_TIMESPEC (&tv, &ts);
00065 
00066   /* Timeout in 5 seconds.  */
00067   ts.tv_sec += 5;
00068 
00069   /* This call should block and be cancelable.  */
00070   sem_timedwait (&sem, &ts);
00071 
00072   pthread_cleanup_pop (0);
00073 
00074   puts ("sem_timedwait returned");
00075 
00076   return NULL;
00077 }
00078 
00079 
00080 static int
00081 do_test (void)
00082 {
00083   pthread_t th;
00084 
00085   if (pthread_barrier_init (&bar, NULL, 2) != 0)
00086     {
00087       puts ("barrier_init failed");
00088       exit (1);
00089     }
00090 
00091   if (sem_init (&sem, 0, 1) != 0)
00092     {
00093       puts ("sem_init failed");
00094       exit (1);
00095     }
00096 
00097   if (pthread_create (&th, NULL, tf, NULL) != 0)
00098     {
00099       puts ("create failed");
00100       exit (1);
00101     }
00102 
00103   /* Check whether cancellation is honored even before sem_timedwait does
00104      anything.  */
00105   if (pthread_cancel (th) != 0)
00106     {
00107       puts ("1st cancel failed");
00108       exit (1);
00109     }
00110 
00111   int e = pthread_barrier_wait (&bar);
00112   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
00113     {
00114       puts ("1st barrier_wait failed");
00115       exit (1);
00116     }
00117 
00118   void *r;
00119   if (pthread_join (th, &r) != 0)
00120     {
00121       puts ("join failed");
00122       exit (1);
00123     }
00124 
00125   if (r != PTHREAD_CANCELED)
00126     {
00127       puts ("thread not canceled");
00128       exit (1);
00129     }
00130 
00131   return 0;
00132 }
00133 
00134 
00135 #define TEST_FUNCTION do_test ()
00136 #include "../test-skeleton.c"