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glibc  2.9
tst-cancel15.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   int e;
00052 
00053   pthread_cleanup_push (cleanup, NULL);
00054 
00055   e = pthread_barrier_wait (&bar);
00056   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
00057     {
00058       puts ("tf: 1st barrier_wait failed");
00059       exit (1);
00060     }
00061 
00062   struct timeval tv;
00063   (void) gettimeofday (&tv, NULL);
00064 
00065   struct timespec ts;
00066   TIMEVAL_TO_TIMESPEC (&tv, &ts);
00067 
00068   /* Timeout in 5 seconds.  */
00069   ts.tv_sec += 5;
00070 
00071   /* This call should block and be cancelable.  */
00072   errno = 0;
00073   e = sem_timedwait (&sem, &ts);
00074 
00075   pthread_cleanup_pop (0);
00076 
00077   printf ("sem_timedwait returned, e = %d, errno = %d\n", e, errno);
00078 
00079   return NULL;
00080 }
00081 
00082 
00083 static int
00084 do_test (void)
00085 {
00086   pthread_t th;
00087 
00088   if (pthread_barrier_init (&bar, NULL, 2) != 0)
00089     {
00090       puts ("barrier_init failed");
00091       exit (1);
00092     }
00093 
00094   if (sem_init (&sem, 0, 0) != 0)
00095     {
00096       puts ("sem_init failed");
00097       exit (1);
00098     }
00099 
00100   if (pthread_create (&th, NULL, tf, NULL) != 0)
00101     {
00102       puts ("create failed");
00103       exit (1);
00104     }
00105 
00106   int e = pthread_barrier_wait (&bar);
00107   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
00108     {
00109       puts ("1st barrier_wait failed");
00110       exit (1);
00111     }
00112 
00113   /* Give the child a chance to go to sleep in sem_wait.  */
00114   sleep (1);
00115 
00116   /* Check whether cancellation is honored when waiting in sem_timedwait.  */
00117   if (pthread_cancel (th) != 0)
00118     {
00119       puts ("1st cancel failed");
00120       exit (1);
00121     }
00122 
00123   void *r;
00124   if (pthread_join (th, &r) != 0)
00125     {
00126       puts ("join failed");
00127       exit (1);
00128     }
00129 
00130   if (r != PTHREAD_CANCELED)
00131     {
00132       puts ("thread not canceled");
00133       exit (1);
00134     }
00135 
00136   return 0;
00137 }
00138 
00139 
00140 #define TEST_FUNCTION do_test ()
00141 #include "../test-skeleton.c"