107 строки
2.4 KiB
C
107 строки
2.4 KiB
C
#include "ompi_config.h"
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#include <stdio.h>
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#include <time.h>
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#include "support.h"
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#include "include/constants.h"
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#include "threads/thread.h"
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#include "threads/condition.h"
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#include "include/sys/atomic.h"
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#if !OMPI_HAVE_THREAD_SUPPORT
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/* If we don't have thread support, there's no point in running this
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test */
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int main(int argc, char *argv[])
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{
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printf("OMPI was compiled without thread support -- skipping this test\n");
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return 77;
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}
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#else
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/* Only have the body of this test if we have thread support */
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ompi_mutex_t mutex;
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ompi_condition_t thr1_cond;
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ompi_condition_t thr2_cond;
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static volatile int thr1_count = 0;
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static volatile int thr2_count = 0;
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#define TEST_COUNT 1000000
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static void* thr1_run(ompi_object_t* obj)
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{
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int i;
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clock_t c1, c2;
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ompi_mutex_lock(&mutex);
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c1 = clock();
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for(i=0; i<TEST_COUNT; i++) {
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ompi_condition_wait(&thr1_cond, &mutex);
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ompi_condition_signal(&thr2_cond);
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thr1_count++;
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}
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c2 = clock();
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ompi_mutex_unlock(&mutex);
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fprintf(stderr, "thr1: time per iteration: %ld usec\n", (c2 - c1) / TEST_COUNT);
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return NULL;
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}
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static void* thr2_run(ompi_object_t* obj)
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{
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int i;
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clock_t c1, c2;
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ompi_mutex_lock(&mutex);
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c1 = clock();
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for(i=0; i<TEST_COUNT; i++) {
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ompi_condition_signal(&thr1_cond);
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ompi_condition_wait(&thr2_cond, &mutex);
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thr2_count++;
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}
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c2 = clock();
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ompi_mutex_unlock(&mutex);
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fprintf(stderr, "thr2: time per iteration: %ld usec\n", (c2 - c1) / TEST_COUNT);
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return NULL;
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}
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int main(int argc, char** argv)
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{
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int rc;
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ompi_thread_t* thr1;
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ompi_thread_t* thr2;
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test_init("ompi_condition_t");
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OBJ_CONSTRUCT(&mutex, ompi_mutex_t);
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OBJ_CONSTRUCT(&thr1_cond, ompi_condition_t);
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OBJ_CONSTRUCT(&thr2_cond, ompi_condition_t);
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thr1 = OBJ_NEW(ompi_thread_t);
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thr2 = OBJ_NEW(ompi_thread_t);
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thr1->t_run = thr1_run;
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thr2->t_run = thr2_run;
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rc = ompi_thread_start(thr1);
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test_verify_int(OMPI_SUCCESS, rc);
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rc = ompi_thread_start(thr2);
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test_verify_int(OMPI_SUCCESS, rc);
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rc = ompi_thread_join(thr1, NULL);
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test_verify_int(OMPI_SUCCESS, rc);
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test_verify_int(TEST_COUNT, thr1_count);
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rc = ompi_thread_join(thr2, NULL);
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test_verify_int(OMPI_SUCCESS, rc);
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test_verify_int(TEST_COUNT, thr2_count);
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return test_finalize();
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}
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#endif /* OMPI_HAVE_THREAD_SUPPORT */
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