0,0 → 1,91 |
/* |
* Copyright (C) 2001-2004 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
|
#include <test.h> |
#include <arch.h> |
#include <arch/smp/atomic.h> |
#include <print.h> |
#include <proc/thread.h> |
|
#include <synch/rwlock.h> |
|
#define READERS 50 |
#define WRITERS 50 |
|
static rwlock_t rwlock; |
|
static void writer(void *arg); |
static void failed(void *arg); |
|
void writer(void *arg) |
{ |
printf("Trying to lock rwlock for writing....\n"); |
|
rwlock_write_lock(&rwlock); |
rwlock_write_unlock(&rwlock); |
|
printf("Trying to lock rwlock for reading....\n"); |
rwlock_read_lock(&rwlock); |
rwlock_read_unlock(&rwlock); |
printf("Test passed.\n"); |
} |
|
void failed(void) |
{ |
printf("Test failed prematurely.\n"); |
thread_exit(); |
} |
|
void test(void) |
{ |
thread_t *thrd; |
|
printf("Read/write locks test #2\n"); |
|
rwlock_initialize(&rwlock); |
|
rwlock_read_lock(&rwlock); |
rwlock_read_lock(&rwlock); |
rwlock_read_lock(&rwlock); |
rwlock_read_lock(&rwlock); |
|
thrd = thread_create(writer, NULL, TASK, 0); |
if (thrd) |
thread_ready(thrd); |
else |
failed(); |
|
|
thread_sleep(1); |
|
rwlock_read_unlock(&rwlock); |
rwlock_read_unlock(&rwlock); |
rwlock_read_unlock(&rwlock); |
rwlock_read_unlock(&rwlock); |
|
} |