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 <string.h>
      23  #include <unistd.h>
      24  
      25  
      26  static pthread_barrier_t bar;
      27  static int fd[2];
      28  
      29  
      30  static void
      31  cleanup (void *arg)
      32  {
      33    static int ncall;
      34  
      35    if (++ncall != 1)
      36      {
      37        puts ("second call to cleanup");
      38        exit (1);
      39      }
      40  
      41    printf ("cleanup call #%d\n", ncall);
      42  }
      43  
      44  
      45  static void *
      46  tf (void *arg)
      47  {
      48    pthread_cleanup_push (cleanup, NULL);
      49  
      50    int e = pthread_barrier_wait (&bar);
      51    if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
      52      {
      53        puts ("tf: 1st barrier_wait failed");
      54        exit (1);
      55      }
      56  
      57    /* This call should block and be cancelable.  */
      58    char buf[20];
      59    if (read (fd[0], buf, sizeof (buf)))
      60    {
      61      puts ("read unexpectedly returned");
      62      exit (1);
      63    }
      64  
      65    pthread_cleanup_pop (0);
      66  
      67    return NULL;
      68  }
      69  
      70  
      71  static int
      72  do_test (void)
      73  {
      74    pthread_t th;
      75  
      76    if (pthread_barrier_init (&bar, NULL, 2) != 0)
      77      {
      78        puts ("barrier_init failed");
      79        exit (1);
      80      }
      81  
      82    if (pipe (fd) != 0)
      83      {
      84        puts ("pipe failed");
      85        exit (1);
      86      }
      87  
      88    if (pthread_create (&th, NULL, tf, NULL) != 0)
      89      {
      90        puts ("create failed");
      91        exit (1);
      92      }
      93  
      94    int e = pthread_barrier_wait (&bar);
      95    if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
      96      {
      97        puts ("1st barrier_wait failed");
      98        exit (1);
      99      }
     100  
     101    if (pthread_cancel (th) != 0)
     102      {
     103        puts ("1st cancel failed");
     104        exit (1);
     105      }
     106  
     107    void *r;
     108    if (pthread_join (th, &r) != 0)
     109      {
     110        puts ("join failed");
     111        exit (1);
     112      }
     113  
     114    if (r != PTHREAD_CANCELED)
     115      {
     116        puts ("thread not canceled");
     117        exit (1);
     118      }
     119  
     120    return 0;
     121  }
     122  
     123  
     124  #define TEST_FUNCTION do_test ()
     125  #include "../test-skeleton.c"