sysdeps/pthread/tst-cancel22.c

   1 /* Copyright (C) 2003-2023 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 <errno.h>
  19 #include <pthread.h>
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <unistd.h>
  23
  24 pthread_barrier_t b;
  25 int seen;
  26
  27 static void *
  28 tf (void *arg)
  29 {
  30   int old;
  31   int r = pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &old);
  32   if (r != 0)
  33     {
  34       puts ("setcancelstate failed");
  35       exit (1);
  36     }
  37
  38   r = pthread_barrier_wait (&b);
  39   if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
  40     {
  41       puts ("barrier_wait failed");
  42       exit (1);
  43     }
  44
  45   for (int i = 0; i < 10; ++i)
  46     {
  47       struct timespec ts = { .tv_sec = 0, .tv_nsec = 100000000 };
  48       TEMP_FAILURE_RETRY (nanosleep (&ts, &ts));
  49     }
  50
  51   seen = 1;
  52   pthread_setcancelstate (old, NULL);
  53
  54   struct timespec ts = { .tv_sec = 0, .tv_nsec = 100000000 };
  55   TEMP_FAILURE_RETRY (nanosleep (&ts, &ts));
  56
  57   exit (1);
  58 }
  59
  60
  61 static int
  62 do_test (void)
  63 {
  64   if (pthread_barrier_init (&b, NULL, 2) != 0)
  65    {
  66      puts ("barrier init failed");
  67      return 1;
  68    }
  69
  70   pthread_t th;
  71   if (pthread_create (&th, NULL, tf, NULL) != 0)
  72     {
  73       puts ("thread creation failed");
  74       return 1;
  75     }
  76
  77   int r = pthread_barrier_wait (&b);
  78   if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
  79     {
  80       puts ("barrier_wait failed");
  81       return 1;
  82     }
  83
  84   if (pthread_cancel (th) != 0)
  85     {
  86       puts ("cancel failed");
  87       return 1;
  88     }
  89
  90   void *status;
  91   if (pthread_join (th, &status) != 0)
  92     {
  93       puts ("join failed");
  94       return 1;
  95     }
  96   if (status != PTHREAD_CANCELED)
  97     {
  98       puts ("thread not canceled");
  99       return 1;
 100     }
 101
 102   if (pthread_barrier_destroy (&b) != 0)
 103     {
 104       puts ("barrier_destroy failed");
 105       return 1;
 106     }
 107
 108   if (seen != 1)
 109     {
 110       puts ("thread cancelled when PTHREAD_CANCEL_DISABLED");
 111       return 1;
 112     }
 113
 114   return 0;
 115 }
 116
 117 #define TEST_FUNCTION do_test ()
 118 #include "../test-skeleton.c"