sysdeps/pthread/tst-sem2.c

   1 /* Copyright (C) 2002-2023 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 <semaphore.h>
  21 #include <signal.h>
  22 #include <stdio.h>
  23 #include <unistd.h>
  24
  25 static int do_test (void);
  26
  27 #define TEST_FUNCTION do_test ()
  28 #include "../test-skeleton.c"
  29
  30 static int
  31 do_test (void)
  32 {
  33   sem_t s;
  34
  35   if (sem_init (&s, 0, 0) == -1)
  36     {
  37       puts ("init failed");
  38       return 1;
  39     }
  40
  41   delayed_exit (1);
  42
  43   if (TEMP_FAILURE_RETRY (sem_wait (&s)) == -1)
  44     {
  45       puts ("wait failed");
  46       return 1;
  47     }
  48
  49   /* We should never get here.  */
  50   puts ("wait succeeded");
  51   return 1;
  52 }