nptl/tst-cancel9.c

   1 /* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
   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 <fcntl.h>
  21 #include <pthread.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <unistd.h>
  26
  27
  28 static pthread_barrier_t b;
  29
  30
  31 static void
  32 cleanup (void *arg)
  33 {
  34   fputs ("in cleanup\n", stdout);
  35 }
  36
  37
  38 static void *
  39 tf (void *arg)
  40 {
  41   int fd = open ("/dev/null", O_RDWR);
  42   if (fd == -1)
  43     {
  44       puts ("cannot open /dev/null");
  45       exit (1);
  46     }
  47   FILE *fp = fdopen (fd, "w");
  48   if (fp == NULL)
  49     {
  50       puts ("fdopen failed");
  51       exit (1);
  52     }
  53
  54   pthread_cleanup_push (cleanup, NULL);
  55
  56   int e = pthread_barrier_wait (&b);
  57   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
  58     {
  59       puts ("barrier_wait failed");
  60       exit (1);
  61     }
  62
  63   while (1)
  64     /* fprintf() uses write() which is a cancallation point.  */
  65     fprintf (fp, "foo");
  66
  67   pthread_cleanup_pop (0);
  68
  69   return NULL;
  70 }
  71
  72
  73 static int
  74 do_test (void)
  75 {
  76   if (pthread_barrier_init (&b, NULL, 2) != 0)
  77     {
  78       puts ("barrier_init failed");
  79       exit (1);
  80     }
  81
  82   pthread_t th;
  83   if (pthread_create (&th, NULL, tf, NULL) != 0)
  84     {
  85       puts ("create failed");
  86       return 1;
  87     }
  88
  89   int e = pthread_barrier_wait (&b);
  90   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
  91     {
  92       puts ("barrier_wait failed");
  93       exit (1);
  94     }
  95
  96   sleep (1);
  97
  98   puts ("cancel now");
  99
 100   if (pthread_cancel (th) != 0)
 101     {
 102       puts ("cancel failed");
 103       exit (1);
 104     }
 105
 106   puts ("waiting for the child");
 107
 108   void *r;
 109   if (pthread_join (th, &r) != 0)
 110     {
 111       puts ("join failed");
 112       exit (1);
 113     }
 114
 115   if (r != PTHREAD_CANCELED)
 116     {
 117       puts ("thread wasn't canceled");
 118       exit (1);
 119     }
 120
 121   return 0;
 122 }
 123
 124
 125 #define TEST_FUNCTION do_test ()
 126 #include "../test-skeleton.c"