WebSVN – HelenOS – Diff – /branches/dd/kernel/test/synch/rwlock4.c



{
    uint32_t rc;
 
    spinlock_lock(&rw_lock);   
    rc = seed % max;
    seed = (((seed << 2) ^ (seed >> 2)) * 487) + rc;
    spinlock_unlock(&rw_lock);
    return rc;
}
 
static void writer(void *arg)

    waitq_sleep(&can_start);
 
    to = random(40000);
   
    if (!sh_quiet)
        printf("cpu%u, tid %" PRIu64 " w+ (%d)\n", CPU->id, THREAD->tid, to);
   
    rc = rwlock_write_lock_timeout(&rwlock, to);
    if (SYNCH_FAILED(rc)) {
        if (!sh_quiet)
            printf("cpu%u, tid %" PRIu64 " w!\n", CPU->id, THREAD->tid);
        atomic_dec(&thread_count);
        return;
    }
   
    if (!sh_quiet)
        printf("cpu%u, tid %" PRIu64 " w=\n", CPU->id, THREAD->tid);
 
    if (rwlock.readers_in) {
        if (!sh_quiet)
            printf("Oops.");
        atomic_inc(&threads_fault);

    }
 
    rwlock_write_unlock(&rwlock);
   
    if (!sh_quiet)
        printf("cpu%u, tid %" PRIu64 " w-\n", CPU->id, THREAD->tid);
    atomic_dec(&thread_count);
}
 
static void reader(void *arg)
{

    waitq_sleep(&can_start);
   
    to = random(2000);
   
    if (!sh_quiet)
        printf("cpu%u, tid %" PRIu64 " r+ (%d)\n", CPU->id, THREAD->tid, to);
   
    rc = rwlock_read_lock_timeout(&rwlock, to);
    if (SYNCH_FAILED(rc)) {
        if (!sh_quiet)
            printf("cpu%u, tid %" PRIu64 " r!\n", CPU->id, THREAD->tid);
        atomic_dec(&thread_count);
        return;
    }
   
    if (!sh_quiet)
        printf("cpu%u, tid %" PRIu64 " r=\n", CPU->id, THREAD->tid);
   
    thread_usleep(30000);
    rwlock_read_unlock(&rwlock);
   
    if (!sh_quiet)
        printf("cpu%u, tid %" PRIu64 " r-\n", CPU->id, THREAD->tid);
    atomic_dec(&thread_count);
}
 
char * test_rwlock4(bool quiet)
{

   
    thread_t *thrd;
   
    context_save(&ctx);
    if (!quiet) {
        printf("sp=%#x, readers_in=%" PRIc "\n", ctx.sp, rwlock.readers_in);
        printf("Creating %" PRIu32 " readers\n", rd);
    }
   
    for (i = 0; i < rd; i++) {
        thrd = thread_create(reader, NULL, TASK, 0, "reader", false);
        if (thrd)
            thread_ready(thrd);
        else if (!quiet)
            printf("Could not create reader %" PRIu32 "\n", i);
    }
 
    if (!quiet)
        printf("Creating %" PRIu32 " writers\n", wr);
   
    for (i = 0; i < wr; i++) {
        thrd = thread_create(writer, NULL, TASK, 0, "writer", false);
        if (thrd)
            thread_ready(thrd);
        else if (!quiet)
            printf("Could not create writer %" PRIu32 "\n", i);
    }
   
    thread_usleep(20000);
    waitq_wakeup(&can_start, WAKEUP_ALL);
   
    while (atomic_get(&thread_count) > 0) {
        if (!quiet)
            printf("Threads left: %ld\n", atomic_get(&thread_count));
        thread_sleep(1);
    }
   
    if (atomic_get(&threads_fault) == 0)
        return NULL;

Rev 3022	Rev 4055
Line 58...	Line 58...
58	{	58	{
59	uint32_t rc;	59	uint32_t rc;
60		60
61	spinlock_lock(&rw_lock);	61	spinlock_lock(&rw_lock);
62	rc = seed % max;	62	rc = seed % max;
63	seed = (((seed<<2) ^ (seed>>2)) * 487) + rc;	63	seed = (((seed << 2) ^ (seed >> 2)) * 487) + rc;
64	spinlock_unlock(&rw_lock);	64	spinlock_unlock(&rw_lock);
65	return rc;	65	return rc;
66	}	66	}
67		67
68	static void writer(void *arg)	68	static void writer(void *arg)
Line 72...	Line 72...
72	waitq_sleep(&can_start);	72	waitq_sleep(&can_start);
73		73
74	to = random(40000);	74	to = random(40000);
75		75
76	if (!sh_quiet)	76	if (!sh_quiet)
77	printf("cpu%d, tid %llu w+ (%d)\n", CPU->id, THREAD->tid, to);	77	printf("cpu%u, tid %" PRIu64 " w+ (%d)\n", CPU->id, THREAD->tid, to);
78		78
79	rc = rwlock_write_lock_timeout(&rwlock, to);	79	rc = rwlock_write_lock_timeout(&rwlock, to);
80	if (SYNCH_FAILED(rc)) {	80	if (SYNCH_FAILED(rc)) {
81	if (!sh_quiet)	81	if (!sh_quiet)
82	printf("cpu%d, tid %llu w!\n", CPU->id, THREAD->tid);	82	printf("cpu%u, tid %" PRIu64 " w!\n", CPU->id, THREAD->tid);
83	atomic_dec(&thread_count);	83	atomic_dec(&thread_count);
84	return;	84	return;
85	}	85	}
86		86
87	if (!sh_quiet)	87	if (!sh_quiet)
88	printf("cpu%d, tid %llu w=\n", CPU->id, THREAD->tid);	88	printf("cpu%u, tid %" PRIu64 " w=\n", CPU->id, THREAD->tid);
89		89
90	if (rwlock.readers_in) {	90	if (rwlock.readers_in) {
91	if (!sh_quiet)	91	if (!sh_quiet)
92	printf("Oops.");	92	printf("Oops.");
93	atomic_inc(&threads_fault);	93	atomic_inc(&threads_fault);
Line 104...	Line 104...
104	}	104	}
105		105
106	rwlock_write_unlock(&rwlock);	106	rwlock_write_unlock(&rwlock);
107		107
108	if (!sh_quiet)	108	if (!sh_quiet)
109	printf("cpu%d, tid %llu w-\n", CPU->id, THREAD->tid);	109	printf("cpu%u, tid %" PRIu64 " w-\n", CPU->id, THREAD->tid);
110	atomic_dec(&thread_count);	110	atomic_dec(&thread_count);
111	}	111	}
112		112
113	static void reader(void *arg)	113	static void reader(void *arg)
114	{	114	{
Line 117...	Line 117...
117	waitq_sleep(&can_start);	117	waitq_sleep(&can_start);
118		118
119	to = random(2000);	119	to = random(2000);
120		120
121	if (!sh_quiet)	121	if (!sh_quiet)
122	printf("cpu%d, tid %llu r+ (%d)\n", CPU->id, THREAD->tid, to);	122	printf("cpu%u, tid %" PRIu64 " r+ (%d)\n", CPU->id, THREAD->tid, to);
123		123
124	rc = rwlock_read_lock_timeout(&rwlock, to);	124	rc = rwlock_read_lock_timeout(&rwlock, to);
125	if (SYNCH_FAILED(rc)) {	125	if (SYNCH_FAILED(rc)) {
126	if (!sh_quiet)	126	if (!sh_quiet)
127	printf("cpu%d, tid %llu r!\n", CPU->id, THREAD->tid);	127	printf("cpu%u, tid %" PRIu64 " r!\n", CPU->id, THREAD->tid);
128	atomic_dec(&thread_count);	128	atomic_dec(&thread_count);
129	return;	129	return;
130	}	130	}
131		131
132	if (!sh_quiet)	132	if (!sh_quiet)
133	printf("cpu%d, tid %llu r=\n", CPU->id, THREAD->tid);	133	printf("cpu%u, tid %" PRIu64 " r=\n", CPU->id, THREAD->tid);
134		134
135	thread_usleep(30000);	135	thread_usleep(30000);
136	rwlock_read_unlock(&rwlock);	136	rwlock_read_unlock(&rwlock);
137		137
138	if (!sh_quiet)	138	if (!sh_quiet)
139	printf("cpu%d, tid %llu r-\n", CPU->id, THREAD->tid);	139	printf("cpu%u, tid %" PRIu64 " r-\n", CPU->id, THREAD->tid);
140	atomic_dec(&thread_count);	140	atomic_dec(&thread_count);
141	}	141	}
142		142
143	char * test_rwlock4(bool quiet)	143	char * test_rwlock4(bool quiet)
144	{	144	{
Line 157...	Line 157...
157		157
158	thread_t *thrd;	158	thread_t *thrd;
159		159
160	context_save(&ctx);	160	context_save(&ctx);
161	if (!quiet) {	161	if (!quiet) {
162	printf("sp=%#x, readers_in=%d\n", ctx.sp, rwlock.readers_in);	162	printf("sp=%#x, readers_in=%" PRIc "\n", ctx.sp, rwlock.readers_in);
163	printf("Creating %d readers\n", rd);	163	printf("Creating %" PRIu32 " readers\n", rd);
164	}	164	}
165		165
166	for (i = 0; i < rd; i++) {	166	for (i = 0; i < rd; i++) {
167	thrd = thread_create(reader, NULL, TASK, 0, "reader", false);	167	thrd = thread_create(reader, NULL, TASK, 0, "reader", false);
168	if (thrd)	168	if (thrd)
169	thread_ready(thrd);	169	thread_ready(thrd);
170	else if (!quiet)	170	else if (!quiet)
171	printf("Could not create reader %d\n", i);	171	printf("Could not create reader %" PRIu32 "\n", i);
172	}	172	}
173		173
174	if (!quiet)	174	if (!quiet)
175	printf("Creating %d writers\n", wr);	175	printf("Creating %" PRIu32 " writers\n", wr);
176		176
177	for (i = 0; i < wr; i++) {	177	for (i = 0; i < wr; i++) {
178	thrd = thread_create(writer, NULL, TASK, 0, "writer", false);	178	thrd = thread_create(writer, NULL, TASK, 0, "writer", false);
179	if (thrd)	179	if (thrd)
180	thread_ready(thrd);	180	thread_ready(thrd);
181	else if (!quiet)	181	else if (!quiet)
182	printf("Could not create writer %d\n", i);	182	printf("Could not create writer %" PRIu32 "\n", i);
183	}	183	}
184		184
185	thread_usleep(20000);	185	thread_usleep(20000);
186	waitq_wakeup(&can_start, WAKEUP_ALL);	186	waitq_wakeup(&can_start, WAKEUP_ALL);
187		187
188	while (atomic_get(&thread_count) > 0) {	188	while (atomic_get(&thread_count) > 0) {
189	if (!quiet)	189	if (!quiet)
190	printf("Threads left: %d\n", atomic_get(&thread_count));	190	printf("Threads left: %ld\n", atomic_get(&thread_count));
191	thread_sleep(1);	191	thread_sleep(1);
192	}	192	}
193		193
194	if (atomic_get(&threads_fault) == 0)	194	if (atomic_get(&threads_fault) == 0)
195	return NULL;	195	return NULL;

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(root)/branches/dd/kernel/test/synch/rwlock4.c – Rev 3022 → 4055