WebSVN – HelenOS-historic – Diff – /kernel/trunk/test/synch/rwlock3/test.c


/*
 * 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/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 reader(void *arg);
static void failed(void);
 
void reader(void *arg)
{
    printf("cpu%d, tid %d: trying to lock rwlock for reading....\n", CPU->id, THREAD->tid);    
    rwlock_read_lock(&rwlock);
    rwlock_read_unlock(&rwlock);   
    printf("cpu%d, tid %d: success\n", CPU->id, THREAD->tid);          
 
    printf("cpu%d, tid %d: trying to lock rwlock for writing....\n", CPU->id, THREAD->tid);    
 
    rwlock_write_lock(&rwlock);
    rwlock_write_unlock(&rwlock);
    printf("cpu%d, tid %d: success\n", CPU->id, THREAD->tid);              
   
    printf("Test passed.\n");  
 
}
 
void failed(void)
{
    printf("Test failed prematurely.\n");
    thread_exit();
}
 
void test(void)
{
    int i;
    thread_t *thrd;
   
    printf("Read/write locks test #2\n");
   
    rwlock_initialize(&rwlock);
 
    rwlock_write_lock(&rwlock);
   
    for (i=0; i<4; i++) {
        thrd = thread_create(reader, NULL, TASK, 0);
        if (thrd)
            thread_ready(thrd);
        else
            failed();
    }
 
 
    thread_sleep(1);
   
    rwlock_write_unlock(&rwlock);
}
 

Rev 532	Rev 534
1	/*	1	/*
2	* Copyright (C) 2001-2004 Jakub Jermar	2	* Copyright (C) 2001-2004 Jakub Jermar
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	#include <test.h>	29	#include <test.h>
30	#include <arch.h>	30	#include <arch.h>
31	#include <arch/atomic.h>	31	#include <arch/atomic.h>
32	#include <print.h>	32	#include <print.h>
33	#include <proc/thread.h>	33	#include <proc/thread.h>
34		34
35	#include <synch/rwlock.h>	35	#include <synch/rwlock.h>
36		36
37	#define READERS 50	37	#define READERS 50
38	#define WRITERS 50	38	#define WRITERS 50
39		39
40	static rwlock_t rwlock;	40	static rwlock_t rwlock;
41		41
42	static void reader(void *arg);	42	static void reader(void *arg);
43	static void failed(void);	43	static void failed(void);
44		44
45	void reader(void *arg)	45	void reader(void *arg)
46	{	46	{
47	printf("cpu%d, tid %d: trying to lock rwlock for reading....\n", CPU->id, THREAD->tid);	47	printf("cpu%d, tid %d: trying to lock rwlock for reading....\n", CPU->id, THREAD->tid);
48	rwlock_read_lock(&rwlock);	48	rwlock_read_lock(&rwlock);
49	rwlock_read_unlock(&rwlock);	49	rwlock_read_unlock(&rwlock);
50	printf("cpu%d, tid %d: success\n", CPU->id, THREAD->tid);	50	printf("cpu%d, tid %d: success\n", CPU->id, THREAD->tid);
51		51
52	printf("cpu%d, tid %d: trying to lock rwlock for writing....\n", CPU->id, THREAD->tid);	52	printf("cpu%d, tid %d: trying to lock rwlock for writing....\n", CPU->id, THREAD->tid);
53		53
54	rwlock_write_lock(&rwlock);	54	rwlock_write_lock(&rwlock);
55	rwlock_write_unlock(&rwlock);	55	rwlock_write_unlock(&rwlock);
56	printf("cpu%d, tid %d: success\n", CPU->id, THREAD->tid);	56	printf("cpu%d, tid %d: success\n", CPU->id, THREAD->tid);
57		57
58	printf("Test passed.\n");	58	printf("Test passed.\n");
59		59
60	}	60	}
61		61
62	void failed(void)	62	void failed(void)
63	{	63	{
64	printf("Test failed prematurely.\n");	64	printf("Test failed prematurely.\n");
65	thread_exit();	65	thread_exit();
66	}	66	}
67		67
68	void test(void)	68	void test(void)
69	{	69	{
70	int i;	70	int i;
71	thread_t *thrd;	71	thread_t *thrd;
72		72
73	printf("Read/write locks test #2\n");	73	printf("Read/write locks test #2\n");
74		74
75	rwlock_initialize(&rwlock);	75	rwlock_initialize(&rwlock);
76		76
77	rwlock_write_lock(&rwlock);	77	rwlock_write_lock(&rwlock);
78		78
79	for (i=0; i<4; i++) {	79	for (i=0; i<4; i++) {
80	thrd = thread_create(reader, NULL, TASK, 0);	80	thrd = thread_create(reader, NULL, TASK, 0);
81	if (thrd)	81	if (thrd)
82	thread_ready(thrd);	82	thread_ready(thrd);
83	else	83	else
84	failed();	84	failed();
85	}	85	}
86		86
87		87
88	thread_sleep(1);	88	thread_sleep(1);
89		89
90	rwlock_write_unlock(&rwlock);	90	rwlock_write_unlock(&rwlock);
91	}	91	}
92		92

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/test/synch/rwlock3/test.c – Rev 532 → 534