sysdeps/pthread/tst-mutex1.c

   1 /* Copyright (C) 2002-2022 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 <errno.h>
  21 #include <stdbool.h>
  22 #include <libc-diag.h>
  23
  24 #ifndef ATTR
  25 # define ATTR NULL
  26 # define ATTR_NULL true
  27 #endif
  28
  29
  30 static int
  31 do_test (void)
  32 {
  33   pthread_mutex_t m;
  34
  35   int e = pthread_mutex_init (&m, ATTR);
  36   if (!ATTR_NULL && e == ENOTSUP)
  37     {
  38       puts ("cannot support selected type of mutexes");
  39       return 0;
  40     }
  41   else if (e != 0)
  42     {
  43       puts ("mutex_init failed");
  44       return 1;
  45     }
  46
  47   /* This deliberately tests supplying a null pointer to a function whose
  48      argument is marked __attribute__ ((nonnull)). */
  49   DIAG_PUSH_NEEDS_COMMENT;
  50   DIAG_IGNORE_NEEDS_COMMENT (5, "-Wnonnull");
  51   if (!ATTR_NULL && pthread_mutexattr_destroy (ATTR) != 0)
  52     {
  53       puts ("mutexattr_destroy failed");
  54       return 1;
  55     }
  56   DIAG_POP_NEEDS_COMMENT;
  57
  58   if (pthread_mutex_lock (&m) != 0)
  59     {
  60       puts ("mutex_lock failed");
  61       return 1;
  62     }
  63
  64   if (pthread_mutex_unlock (&m) != 0)
  65     {
  66       puts ("mutex_unlock failed");
  67       return 1;
  68     }
  69
  70   if (pthread_mutex_destroy (&m) != 0)
  71     {
  72       puts ("mutex_destroy failed");
  73       return 1;
  74     }
  75
  76   return 0;
  77 }
  78
  79 #ifndef TEST_FUNCTION
  80 # define TEST_FUNCTION do_test ()
  81 #endif
  82 #include "../test-skeleton.c"