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#include "ompi_config.h"
#include <stdio.h>
#include <time.h>
#include "support.h"
#include "opal/constants.h"
#include "opal/threads/threads.h"
#include "opal/threads/condition.h"
#include "opal/sys/atomic.h"
#if !OMPI_HAVE_THREAD_SUPPORT
/* If we don't have thread support, there's no point in running this
test */
int main(int argc, char *argv[])
{
printf("OMPI was compiled without thread support -- skipping this test\n");
return 77;
}
#else
/* Only have the body of this test if we have thread support */
opal_mutex_t mutex;
opal_condition_t thr1_cond;
opal_condition_t thr2_cond;
static volatile int thr1_count = 0;
static volatile int thr2_count = 0;
#define TEST_COUNT 1000000
static void* thr1_run(opal_object_t* obj)
{
int i;
clock_t c1, c2;
opal_mutex_lock(&mutex);
c1 = clock();
for(i=0; i<TEST_COUNT; i++) {
opal_condition_wait(&thr1_cond, &mutex);
opal_condition_signal(&thr2_cond);
thr1_count++;
}
c2 = clock();
opal_mutex_unlock(&mutex);
fprintf(stderr, "thr1: time per iteration: %ld usec\n", (c2 - c1) / TEST_COUNT);
return NULL;
}
static void* thr2_run(opal_object_t* obj)
{
int i;
clock_t c1, c2;
opal_mutex_lock(&mutex);
c1 = clock();
for(i=0; i<TEST_COUNT; i++) {
opal_condition_signal(&thr1_cond);
opal_condition_wait(&thr2_cond, &mutex);
thr2_count++;
}
c2 = clock();
opal_mutex_unlock(&mutex);
fprintf(stderr, "thr2: time per iteration: %ld usec\n", (c2 - c1) / TEST_COUNT);
return NULL;
}
int main(int argc, char** argv)
{
int rc;
opal_thread_t* thr1;
opal_thread_t* thr2;
test_init("opal_condition_t");
OBJ_CONSTRUCT(&mutex, opal_mutex_t);
OBJ_CONSTRUCT(&thr1_cond, opal_condition_t);
OBJ_CONSTRUCT(&thr2_cond, opal_condition_t);
thr1 = OBJ_NEW(opal_thread_t);
thr2 = OBJ_NEW(opal_thread_t);
thr1->t_run = thr1_run;
thr2->t_run = thr2_run;
rc = opal_thread_start(thr1);
test_verify_int(OPAL_SUCCESS, rc);
rc = opal_thread_start(thr2);
test_verify_int(OPAL_SUCCESS, rc);
rc = opal_thread_join(thr1, NULL);
test_verify_int(OPAL_SUCCESS, rc);
test_verify_int(TEST_COUNT, thr1_count);
rc = opal_thread_join(thr2, NULL);
test_verify_int(OPAL_SUCCESS, rc);
test_verify_int(TEST_COUNT, thr2_count);
return test_finalize();
}
#endif /* OMPI_HAVE_THREAD_SUPPORT */
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