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27
28
29 /*
30 * Test case for pipe_barrier.
31 *
32 * The test succeeds if no thread exits before all the other threads reach
33 * the barrier.
34 */
35
36
37 #include <stdio.h>
38
39 #include "os/os_thread.h"
40 #include "os/os_time.h"
41
42
43 #define NUM_THREADS 10
44
45 static pipe_thread threads[NUM_THREADS];
46 static pipe_barrier barrier;
47 static int thread_ids[NUM_THREADS];
48
49
PIPE_THREAD_ROUTINE(thread_function,thread_data)50 static PIPE_THREAD_ROUTINE(thread_function, thread_data)
51 {
52 int thread_id = *((int *) thread_data);
53
54 printf("thread %d starting\n", thread_id);
55 os_time_sleep(thread_id * 1000 * 1000);
56 printf("thread %d before barrier\n", thread_id);
57 pipe_barrier_wait(&barrier);
58 printf("thread %d exiting\n", thread_id);
59
60 return NULL;
61 }
62
63
main()64 int main()
65 {
66 int i;
67
68 printf("pipe_barrier_test starting\n");
69
70 pipe_barrier_init(&barrier, NUM_THREADS);
71
72 for (i = 0; i < NUM_THREADS; i++) {
73 thread_ids[i] = i;
74 threads[i] = pipe_thread_create(thread_function, (void *) &thread_ids[i]);
75 }
76
77 for (i = 0; i < NUM_THREADS; i++ ) {
78 pipe_thread_wait(threads[i]);
79 }
80
81 pipe_barrier_destroy(&barrier);
82
83 printf("pipe_barrier_test exiting\n");
84
85 return 0;
86 }
87