nptl/tst-cancel3.c

   1 /* Copyright (C) 2002-2016 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, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <pthread.h>
  20 #include <signal.h>
  21 #include <stdio.h>
  22 #include <unistd.h>
  23
  24
  25 static int fd[2];
  26
  27
  28 static void *
  29 tf (void *arg)
  30 {
  31   char buf[100];
  32
  33   if (read (fd[0], buf, sizeof (buf)) == sizeof (buf))
  34     {
  35       puts ("read succeeded");
  36       return (void *) 1l;
  37     }
  38
  39   return NULL;
  40 }
  41
  42
  43 static int
  44 do_test (void)
  45 {
  46   pthread_t th;
  47   void *r;
  48   struct sigaction sa;
  49
  50   sa.sa_handler = SIG_IGN;
  51   sigemptyset (&sa.sa_mask);
  52   sa.sa_flags = 0;
  53
  54   if (sigaction (SIGPIPE, &sa, NULL) != 0)
  55     {
  56       puts ("sigaction failed");
  57       return 1;
  58     }
  59
  60   if (pipe (fd) != 0)
  61     {
  62       puts ("pipe failed");
  63       return 1;
  64     }
  65
  66   if (pthread_create (&th, NULL, tf, NULL) != 0)
  67     {
  68       puts ("create failed");
  69       return 1;
  70     }
  71
  72   if (pthread_cancel (th) != 0)
  73     {
  74       puts ("cancel failed");
  75       return 1;
  76     }
  77
  78   /* This will cause the read in the child to return.  */
  79   close (fd[0]);
  80
  81   if (pthread_join (th, &r) != 0)
  82     {
  83       puts ("join failed");
  84       return 1;
  85     }
  86
  87   if (r != PTHREAD_CANCELED)
  88     {
  89       puts ("result is wrong");
  90       return 1;
  91     }
  92
  93   return 0;
  94 }
  95
  96 #define TEST_FUNCTION do_test ()
  97 #include "../test-skeleton.c"