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 #include <errno.h>
35 
36 #include "synctest.h"
37 
38 static int run_test(int (*test)(void), char *name)
39 {
40 	int result;
41 	pid_t childpid;
42 
43 	fflush(stdout);
44 	childpid = fork();
45 
46 	if (childpid) {
47 		waitpid(childpid, &result, 0);
48 		if (WIFEXITED(result))
49 			return WEXITSTATUS(result);
50 		return 1;
51 	}
52 
53 	printf("[RUN]\tExecuting %s\n", name);
54 	exit(test());
55 }
56 
57 static int sync_api_supported(void)
58 {
59 	struct stat sbuf;
60 	int ret;
61 
62 	ret = stat("/sys/kernel/debug/sync/sw_sync", &sbuf);
63 	if (!ret)
64 		return 0;
65 
66 	if (errno == ENOENT) {
67 		printf("SKIP: Sync framework not supported by kernel\n");
68 		exit(0);
69 	}
70 	if (errno == EACCES) {
71 		printf("SKIP: Run Sync test as root.\n");
72 		exit(0);
73 	}
74 
75 	perror("stat");
76 	exit(ret);
77 
78 }
79 
80 int main(void)
81 {
82 	int err = 0;
83 
84 	if (!sync_api_supported())
85 		return 0;
86 
87 	printf("[RUN]\tTesting sync framework\n");
88 
89 	err += RUN_TEST(test_alloc_timeline);
90 	err += RUN_TEST(test_alloc_fence);
91 	err += RUN_TEST(test_alloc_fence_negative);
92 
93 	err += RUN_TEST(test_fence_one_timeline_wait);
94 	err += RUN_TEST(test_fence_one_timeline_merge);
95 	err += RUN_TEST(test_fence_merge_same_fence);
96 	err += RUN_TEST(test_fence_multi_timeline_wait);
97 	err += RUN_TEST(test_stress_two_threads_shared_timeline);
98 	err += RUN_TEST(test_consumer_stress_multi_producer_single_consumer);
99 	err += RUN_TEST(test_merge_stress_random_merge);
100 
101 	if (err)
102 		printf("[FAIL]\tsync errors: %d\n", err);
103 	else
104 		printf("[OK]\tsync\n");
105 
106 	return !!err;
107 }
108