mirror of
https://github.com/darlinghq/darling-libkqueue.git
synced 2024-11-23 03:39:51 +00:00
af270012fc
git-svn-id: svn://svn.code.sf.net/p/libkqueue/code/trunk@515 fb4e3144-bc1c-4b72-a658-5bcd248dd7f7
76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/*
|
|
* Copyright (c) 2011 Mark Heily <mark@heily.com>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <err.h>
|
|
#include <pthread.h>
|
|
#include "../src/common/private.h"
|
|
|
|
int DEBUG_KQUEUE = 1;
|
|
char * KQUEUE_DEBUG_IDENT = "lockstat";
|
|
|
|
struct foo {
|
|
tracing_mutex_t foo_lock;
|
|
};
|
|
|
|
void *test_assert_unlocked(void *_x)
|
|
{
|
|
struct foo *x = (struct foo *) _x;
|
|
tracing_mutex_assert(&x->foo_lock, MTX_UNLOCKED);
|
|
pthread_exit(NULL);
|
|
}
|
|
|
|
void *test_assert_locked(void *_x)
|
|
{
|
|
struct foo *x = (struct foo *) _x;
|
|
puts("The following assertion should fail");
|
|
tracing_mutex_assert(&x->foo_lock, MTX_LOCKED);
|
|
pthread_exit(NULL);
|
|
}
|
|
|
|
/*
|
|
* Test the lockstat.h API
|
|
*/
|
|
int main() {
|
|
struct foo x;
|
|
pthread_t tid;
|
|
void *rv;
|
|
|
|
tracing_mutex_init(&x.foo_lock, NULL);
|
|
tracing_mutex_lock(&x.foo_lock);
|
|
tracing_mutex_assert(&x.foo_lock, MTX_LOCKED);
|
|
tracing_mutex_unlock(&x.foo_lock);
|
|
tracing_mutex_assert(&x.foo_lock, MTX_UNLOCKED);
|
|
|
|
/*
|
|
* Ensure that the assert() function works when there
|
|
* are multiple threads contenting for the mutex.
|
|
*/
|
|
tracing_mutex_lock(&x.foo_lock);
|
|
if (pthread_create(&tid, NULL, test_assert_unlocked, &x) != 0)
|
|
err(1, "pthread_create");
|
|
pthread_join(tid, &rv);
|
|
tracing_mutex_unlock(&x.foo_lock);
|
|
tracing_mutex_lock(&x.foo_lock);
|
|
if (pthread_create(&tid, NULL, test_assert_locked, &x) != 0)
|
|
err(1, "pthread_create");
|
|
sleep(3); // Crude way to ensure the other thread is scheduled
|
|
pthread_join(tid, &rv);
|
|
tracing_mutex_unlock(&x.foo_lock);
|
|
|
|
puts("+OK");
|
|
return (0);
|
|
}
|