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Ignore whitespace Rev 4376 → Rev 4377

/branches/tracing/kernel/test/synch/rwlock4.c
40,13 → 40,12
#include <synch/synch.h>
#include <synch/spinlock.h>
 
#define READERS 50
#define WRITERS 50
#define READERS 50
#define WRITERS 50
 
static atomic_t thread_count;
static rwlock_t rwlock;
static atomic_t threads_fault;
static bool sh_quiet;
 
SPINLOCK_INITIALIZE(rw_lock);
 
57,10 → 56,10
static uint32_t random(uint32_t max)
{
uint32_t rc;
 
spinlock_lock(&rw_lock);
spinlock_lock(&rw_lock);
rc = seed % max;
seed = (((seed<<2) ^ (seed>>2)) * 487) + rc;
seed = (((seed << 2) ^ (seed >> 2)) * 487) + rc;
spinlock_unlock(&rw_lock);
return rc;
}
70,43 → 69,39
int rc, to;
thread_detach(THREAD);
waitq_sleep(&can_start);
 
to = random(40000);
if (!sh_quiet)
printf("cpu%u, tid %" PRIu64 " w+ (%d)\n", CPU->id, THREAD->tid, to);
TPRINTF("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);
TPRINTF("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);
 
TPRINTF("cpu%u, tid %" PRIu64 " w=\n", CPU->id, THREAD->tid);
if (rwlock.readers_in) {
if (!sh_quiet)
printf("Oops.");
TPRINTF("Oops.\n");
atomic_inc(&threads_fault);
atomic_dec(&thread_count);
return;
}
thread_usleep(random(1000000));
if (rwlock.readers_in) {
if (!sh_quiet)
printf("Oops.");
TPRINTF("Oops.\n");
atomic_inc(&threads_fault);
atomic_dec(&thread_count);
return;
}
 
rwlock_write_unlock(&rwlock);
if (!sh_quiet)
printf("cpu%u, tid %" PRIu64 " w-\n", CPU->id, THREAD->tid);
TPRINTF("cpu%u, tid %" PRIu64 " w-\n", CPU->id, THREAD->tid);
atomic_dec(&thread_count);
}
 
118,33 → 113,28
to = random(2000);
if (!sh_quiet)
printf("cpu%u, tid %" PRIu64 " r+ (%d)\n", CPU->id, THREAD->tid, to);
TPRINTF("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);
TPRINTF("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);
TPRINTF("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);
TPRINTF("cpu%u, tid %" PRIu64 " r-\n", CPU->id, THREAD->tid);
atomic_dec(&thread_count);
}
 
char * test_rwlock4(bool quiet)
char *test_rwlock4(void)
{
context_t ctx;
uint32_t i;
sh_quiet = quiet;
waitq_initialize(&can_start);
rwlock_initialize(&rwlock);
158,28 → 148,25
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);
}
TPRINTF("sp=%#x, readers_in=%" PRIc "\n", ctx.sp, rwlock.readers_in);
TPRINTF("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);
else
TPRINTF("Could not create reader %" PRIu32 "\n", i);
}
 
if (!quiet)
printf("Creating %" PRIu32 " writers\n", wr);
TPRINTF("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);
else
TPRINTF("Could not create writer %" PRIu32 "\n", i);
}
thread_usleep(20000);
186,8 → 173,7
waitq_wakeup(&can_start, WAKEUP_ALL);
while (atomic_get(&thread_count) > 0) {
if (!quiet)
printf("Threads left: %ld\n", atomic_get(&thread_count));
TPRINTF("Threads left: %ld\n", atomic_get(&thread_count));
thread_sleep(1);
}