LXR linux/tools/testing/selftests/sync/sync

   1/*
   2 *  sync test runner
   3 *  Copyright 2015-2016 Collabora Ltd.
   4 *
   5 *  Based on the implementation from the Android Open Source Project,
   6 *
   7 *  Copyright 2012 Google, Inc
   8 *
   9 *  Permission is hereby granted, free of charge, to any person obtaining a
  10 *  copy of this software and associated documentation files (the "Software"),
  11 *  to deal in the Software without restriction, including without limitation
  12 *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13 *  and/or sell copies of the Software, and to permit persons to whom the
  14 *  Software is furnished to do so, subject to the following conditions:
  15 *
  16 *  The above copyright notice and this permission notice shall be included in
  17 *  all copies or substantial portions of the Software.
  18 *
  19 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  22 *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  23 *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  24 *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  25 *  OTHER DEALINGS IN THE SOFTWARE.
  26 */
  27
  28#include <stdio.h>
  29#include <unistd.h>
  30#include <stdlib.h>
  31#include <sys/types.h>
  32#include <sys/stat.h>
  33#include <sys/wait.h>
  34
  35#include "synctest.h"
  36
  37static int run_test(int (*test)(void), char *name)
  38{
  39        int result;
  40        pid_t childpid;
  41
  42        fflush(stdout);
  43        childpid = fork();
  44
  45        if (childpid) {
  46                waitpid(childpid, &result, 0);
  47                if (WIFEXITED(result))
  48                        return WEXITSTATUS(result);
  49                return 1;
  50        }
  51
  52        printf("[RUN]\tExecuting %s\n", name);
  53        exit(test());
  54}
  55
  56static int sync_api_supported(void)
  57{
  58        struct stat sbuf;
  59
  60        return 0 == stat("/sys/kernel/debug/sync/sw_sync", &sbuf);
  61}
  62
  63int main(void)
  64{
  65        int err = 0;
  66
  67        if (!sync_api_supported()) {
  68                printf("SKIP: Sync framework not supported by kernel\n");
  69                return 0;
  70        }
  71
  72        printf("[RUN]\tTesting sync framework\n");
  73
  74        err += RUN_TEST(test_alloc_timeline);
  75        err += RUN_TEST(test_alloc_fence);
  76        err += RUN_TEST(test_alloc_fence_negative);
  77
  78        err += RUN_TEST(test_fence_one_timeline_wait);
  79        err += RUN_TEST(test_fence_one_timeline_merge);
  80        err += RUN_TEST(test_fence_merge_same_fence);
  81        err += RUN_TEST(test_fence_multi_timeline_wait);
  82        err += RUN_TEST(test_stress_two_threads_shared_timeline);
  83        err += RUN_TEST(test_consumer_stress_multi_producer_single_consumer);
  84        err += RUN_TEST(test_merge_stress_random_merge);
  85
  86        if (err)
  87                printf("[FAIL]\tsync errors: %d\n", err);
  88        else
  89                printf("[OK]\tsync\n");
  90
  91        return !!err;
  92}
  93