linuxthreads/tst-cancel3.c

   1 /* Copyright (C) 2002 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <pthread.h>
  21 #include <signal.h>
  22 #include <stdio.h>
  23 #include <unistd.h>
  24
  25
  26 static int fd[2];
  27
  28
  29 static void *
  30 tf (void *arg)
  31 {
  32   char buf[100];
  33
  34   if (read (fd[0], buf, sizeof (buf)) == sizeof (buf))
  35     {
  36       puts ("read succeeded");
  37       return (void *) 1l;
  38     }
  39
  40   return NULL;
  41 }
  42
  43
  44 static int
  45 do_test (void)
  46 {
  47   pthread_t th;
  48   void *r;
  49   struct sigaction sa;
  50
  51   sa.sa_handler = SIG_IGN;
  52   sigemptyset (&sa.sa_mask);
  53   sa.sa_flags = 0;
  54
  55   if (sigaction (SIGPIPE, &sa, NULL) != 0)
  56     {
  57       puts ("sigaction failed");
  58       return 1;
  59     }
  60
  61   if (pipe (fd) != 0)
  62     {
  63       puts ("pipe failed");
  64       return 1;
  65     }
  66
  67   if (pthread_create (&th, NULL, tf, NULL) != 0)
  68     {
  69       puts ("create failed");
  70       return 1;
  71     }
  72
  73   if (pthread_cancel (th) != 0)
  74     {
  75       puts ("cancel failed");
  76       return 1;
  77     }
  78
  79   /* This will cause the read in the child to return.  */
  80   close (fd[0]);
  81
  82   if (pthread_join (th, &r) != 0)
  83     {
  84       puts ("join failed");
  85       return 1;
  86     }
  87
  88   if (r != PTHREAD_CANCELED)
  89     {
  90       puts ("result is wrong");
  91       return 1;
  92     }
  93
  94   return 0;
  95 }
  96
  97 #define TEST_FUNCTION do_test ()
  98 #include "../test-skeleton.c"