nptl/tst-cancel22.c

   1 /* Copyright (C) 2003-2020 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Jakub Jelinek <jakub@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, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <pthread.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <unistd.h>
  24
  25 pthread_barrier_t b;
  26 int seen;
  27
  28 static void *
  29 tf (void *arg)
  30 {
  31   int old;
  32   int r = pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &old);
  33   if (r != 0)
  34     {
  35       puts ("setcancelstate failed");
  36       exit (1);
  37     }
  38
  39   r = pthread_barrier_wait (&b);
  40   if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
  41     {
  42       puts ("barrier_wait failed");
  43       exit (1);
  44     }
  45
  46   for (int i = 0; i < 10; ++i)
  47     {
  48       struct timespec ts = { .tv_sec = 0, .tv_nsec = 100000000 };
  49       TEMP_FAILURE_RETRY (nanosleep (&ts, &ts));
  50     }
  51
  52   seen = 1;
  53   pthread_setcancelstate (old, NULL);
  54
  55   struct timespec ts = { .tv_sec = 0, .tv_nsec = 100000000 };
  56   TEMP_FAILURE_RETRY (nanosleep (&ts, &ts));
  57
  58   exit (1);
  59 }
  60
  61
  62 static int
  63 do_test (void)
  64 {
  65   if (pthread_barrier_init (&b, NULL, 2) != 0)
  66    {
  67      puts ("barrier init failed");
  68      return 1;
  69    }
  70
  71   pthread_t th;
  72   if (pthread_create (&th, NULL, tf, NULL) != 0)
  73     {
  74       puts ("thread creation failed");
  75       return 1;
  76     }
  77
  78   int r = pthread_barrier_wait (&b);
  79   if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
  80     {
  81       puts ("barrier_wait failed");
  82       return 1;
  83     }
  84
  85   if (pthread_cancel (th) != 0)
  86     {
  87       puts ("cancel failed");
  88       return 1;
  89     }
  90
  91   void *status;
  92   if (pthread_join (th, &status) != 0)
  93     {
  94       puts ("join failed");
  95       return 1;
  96     }
  97   if (status != PTHREAD_CANCELED)
  98     {
  99       puts ("thread not canceled");
 100       return 1;
 101     }
 102
 103   if (pthread_barrier_destroy (&b) != 0)
 104     {
 105       puts ("barrier_destroy failed");
 106       return 1;
 107     }
 108
 109   if (seen != 1)
 110     {
 111       puts ("thread cancelled when PTHREAD_CANCEL_DISABLED");
 112       return 1;
 113     }
 114
 115   return 0;
 116 }
 117
 118 #define TEST_FUNCTION do_test ()
 119 #include "../test-skeleton.c"