Home | History | Annotate | Download | only in unit 
      1 /**************************************************************************
      2  *
      3  * Copyright 2009-2010 VMware, Inc.
      4  * All Rights Reserved.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the
      8  * "Software"), to deal in the Software without restriction, including
      9  * without limitation the rights to use, copy, modify, merge, publish,
     10  * distribute, sub license, and/or sell copies of the Software, and to
     11  * permit persons to whom the Software is furnished to do so, subject to
     12  * the following conditions:
     13  *
     14  * The above copyright notice and this permission notice (including the
     15  * next paragraph) shall be included in all copies or substantial portions
     16  * of the Software.
     17  *
     18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
     19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
     21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
     22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
     23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
     24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     25  *
     26  **************************************************************************/
     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 
     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 
     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