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glibc  2.9
tst-cancel11.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 <stdio.h>
00023 #include <stdlib.h>
00024 #include <string.h>
00025 #include <unistd.h>
00026 
00027 
00028 static pthread_barrier_t bar;
00029 static int fd[2];
00030 
00031 
00032 static void
00033 cleanup (void *arg)
00034 {
00035   static int ncall;
00036 
00037   if (++ncall != 1)
00038     {
00039       puts ("second call to cleanup");
00040       exit (1);
00041     }
00042 
00043   printf ("cleanup call #%d\n", ncall);
00044 }
00045 
00046 
00047 static void *
00048 tf (void *arg)
00049 {
00050   pthread_cleanup_push (cleanup, NULL);
00051 
00052   int e = pthread_barrier_wait (&bar);
00053   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
00054     {
00055       puts ("tf: 1st barrier_wait failed");
00056       exit (1);
00057     }
00058 
00059   /* This call should block and be cancelable.  */
00060   char buf[20];
00061   read (fd[0], buf, sizeof (buf));
00062 
00063   pthread_cleanup_pop (0);
00064 
00065   return NULL;
00066 }
00067 
00068 
00069 static int
00070 do_test (void)
00071 {
00072   pthread_t th;
00073 
00074   if (pthread_barrier_init (&bar, NULL, 2) != 0)
00075     {
00076       puts ("barrier_init failed");
00077       exit (1);
00078     }
00079 
00080   if (pipe (fd) != 0)
00081     {
00082       puts ("pipe failed");
00083       exit (1);
00084     }
00085 
00086   if (pthread_create (&th, NULL, tf, NULL) != 0)
00087     {
00088       puts ("create failed");
00089       exit (1);
00090     }
00091 
00092   int e = pthread_barrier_wait (&bar);
00093   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
00094     {
00095       puts ("1st barrier_wait failed");
00096       exit (1);
00097     }
00098 
00099   if (pthread_cancel (th) != 0)
00100     {
00101       puts ("1st cancel failed");
00102       exit (1);
00103     }
00104 
00105   void *r;
00106   if (pthread_join (th, &r) != 0)
00107     {
00108       puts ("join failed");
00109       exit (1);
00110     }
00111 
00112   if (r != PTHREAD_CANCELED)
00113     {
00114       puts ("thread not canceled");
00115       exit (1);
00116     }
00117 
00118   return 0;
00119 }
00120 
00121 
00122 #define TEST_FUNCTION do_test ()
00123 #include "../test-skeleton.c"