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/* Test of locking in multithreaded situations.
Copyright (C) 2024 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2024. */
#include <config.h>
#if defined _WIN32 && !defined __CYGWIN__
/* Specification. */
# include "windows-recmutex.h"
# include <errno.h>
# include <stdio.h>
# include <string.h>
# include "macros.h"
/* Returns the effective type of a lock. */
static const char *
get_effective_type (glwthread_recmutex_t *lock)
{
/* Lock once. */
ASSERT (glwthread_recmutex_lock (lock) == 0);
/* Try to lock a second time. */
int err = glwthread_recmutex_trylock (lock);
if (err == 0)
return "RECURSIVE";
if (err == EBUSY)
return "NORMAL";
return "impossible!";
}
int
main ()
{
/* Find the effective type of a lock. */
const char *type;
{
glwthread_recmutex_t lock;
glwthread_recmutex_init (&lock);
type = get_effective_type (&lock);
}
printf ("type = %s\n", type);
ASSERT (strcmp (type, "RECURSIVE") == 0);
return test_exit_status;
}
#else
# include <stdio.h>
int
main ()
{
fputs ("Skipping test: not a native Windows system\n", stderr);
return 77;
}
#endif
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