Test which checks the omp_testlock function. The test counts the threads entering and exiting a single region which is build with a test_lock in an endless loop.
2.0
omp_test_lock
omp flush
#include
#include "omp_testsuite.h"
omp_lock_t lck;
int omp_test_lock(FILE * logFile)
{
int nr_threads_in_single = 0;
int result = 0;
int nr_iterations = 0;
int i;
omp_init_lock (&lck);
#pragma omp parallel shared(lck)
{
#pragma omp for
for (i = 0; i < LOOPCOUNT; i++)
{
/*omp_set_lock(&lck);*/
while (!omp_test_lock (&lck))
{};
#pragma omp flush
nr_threads_in_single++;
#pragma omp flush
nr_iterations++;
nr_threads_in_single--;
result = result + nr_threads_in_single;
omp_unset_lock (&lck);
}
}
omp_destroy_lock(&lck);
return ((result == 0) && (nr_iterations == LOOPCOUNT));
}