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

source code of openmp/runtime/test/lock/omp_test_nest_lock.c