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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
45static pipe_thread threads[NUM_THREADS];
46static pipe_barrier barrier;
47static int thread_ids[NUM_THREADS];
48
49
50static 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
64int 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