sysdeps/pthread/tst-cancel6.c

   1 /* Copyright (C) 2002-2021 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <pthread.h>
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <unistd.h>
  22
  23
  24 static void *
  25 tf (void *arg)
  26 {
  27   char buf[100];
  28   fgets (buf, sizeof (buf), arg);
  29   /* This call should never return.  */
  30   return NULL;
  31 }
  32
  33
  34 static int
  35 do_test (void)
  36 {
  37   int fd[2];
  38   if (pipe (fd) != 0)
  39     {
  40       puts ("pipe failed");
  41       return 1;
  42     }
  43
  44   FILE *fp = fdopen (fd[0], "r");
  45   if (fp == NULL)
  46     {
  47       puts ("fdopen failed");
  48       return 1;
  49     }
  50
  51   pthread_t th;
  52   if (pthread_create (&th, NULL, tf, fp) != 0)
  53     {
  54       puts ("pthread_create failed");
  55       return 1;
  56     }
  57
  58   sleep (1);
  59
  60   if (pthread_cancel (th) != 0)
  61     {
  62       puts ("pthread_cancel failed");
  63       return 1;
  64     }
  65
  66   void *r;
  67   if (pthread_join (th, &r) != 0)
  68     {
  69       puts ("pthread_join failed");
  70       return 1;
  71     }
  72
  73   return r != PTHREAD_CANCELED;
  74 }
  75
  76 #define TEST_FUNCTION do_test ()
  77 #include "../test-skeleton.c"