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// RUN: %libomp-compile-and-run
#include "omp_testsuite.h"
#include <stdio.h>
// This should be slightly less than KMP_I_LOCK_CHUNK, which is 1024
#define LOCKS_PER_ITER 1000
#define ITERATIONS (REPETITIONS + 1)
// This tests concurrently using locks on one thread while initializing new
// ones on another thread. This exercises the global lock pool.
int test_omp_init_lock() {
int i;
omp_lock_t lcks[ITERATIONS * LOCKS_PER_ITER];
#pragma omp parallel for schedule(static) num_threads(NUM_TASKS)
for (i = 0; i < ITERATIONS; i++) {
int j;
omp_lock_t *my_lcks = &lcks[i * LOCKS_PER_ITER];
for (j = 0; j < LOCKS_PER_ITER; j++) {
omp_init_lock(&my_lcks[j]);
}
for (j = 0; j < LOCKS_PER_ITER * 100; j++) {
omp_set_lock(&my_lcks[j % LOCKS_PER_ITER]);
omp_unset_lock(&my_lcks[j % LOCKS_PER_ITER]);
}
}
// Wait until all repititions are done. The test is exercising growth of
// the global lock pool, which does not shrink when no locks are allocated.
{
int j;
for (j = 0; j < ITERATIONS * LOCKS_PER_ITER; j++) {
omp_destroy_lock(&lcks[j]);
}
}
return 0;
}
int main() {
// No use repeating this test, since it's exercising a private global pool
// which is not reset between test iterations.
return test_omp_init_lock();
}
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