| 1 | // RUN: %libomp-compile-and-run |
|---|---|
| 2 | // RUN: env KMP_LOCK_KIND=tas KMP_SPIN_BACKOFF_PARAMS=2048,200 %libomp-run |
| 3 | // RUN: env KMP_LOCK_KIND=futex %libomp-run |
| 4 | #include <stdio.h> |
| 5 | #include "omp_testsuite.h" |
| 6 | |
| 7 | omp_lock_t lck; |
| 8 | |
| 9 | int test_omp_lock() |
| 10 | { |
| 11 | int nr_threads_in_single = 0; |
| 12 | int result = 0; |
| 13 | int nr_iterations = 0; |
| 14 | int i; |
| 15 | |
| 16 | omp_init_lock(&lck); |
| 17 | #pragma omp parallel shared(lck) |
| 18 | { |
| 19 | #pragma omp for |
| 20 | for(i = 0; i < LOOPCOUNT; i++) { |
| 21 | omp_set_lock(&lck); |
| 22 | #pragma omp flush |
| 23 | nr_threads_in_single++; |
| 24 | #pragma omp flush |
| 25 | nr_iterations++; |
| 26 | nr_threads_in_single--; |
| 27 | result = result + nr_threads_in_single; |
| 28 | omp_unset_lock(&lck); |
| 29 | } |
| 30 | } |
| 31 | omp_destroy_lock(&lck); |
| 32 | |
| 33 | return ((result == 0) && (nr_iterations == LOOPCOUNT)); |
| 34 | } |
| 35 | |
| 36 | int main() |
| 37 | { |
| 38 | int i; |
| 39 | int num_failed=0; |
| 40 | |
| 41 | for(i = 0; i < REPETITIONS; i++) { |
| 42 | if(!test_omp_lock()) { |
| 43 | num_failed++; |
| 44 | } |
| 45 | } |
| 46 | return num_failed; |
| 47 | } |
| 48 |