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 
37 static 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 
56 static int sync_api_supported(void)
57 {
58 	struct stat sbuf;
59 
60 	return 0 == stat("/sys/kernel/debug/sync/sw_sync", &sbuf);
61 }
62 
63 int 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