1/*
2 * sync fence merge tests
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 "sync.h"
29#include "sw_sync.h"
30#include "synctest.h"
31
32int test_fence_merge_same_fence(void)
33{
34 int fence, valid, merged;
35 int timeline = sw_sync_timeline_create();
36
37 valid = sw_sync_timeline_is_valid(fd: timeline);
38 ASSERT(valid, "Failure allocating timeline\n");
39
40 fence = sw_sync_fence_create(fd: timeline, name: "allocFence", value: 5);
41 valid = sw_sync_fence_is_valid(fd: fence);
42 ASSERT(valid, "Failure allocating fence\n");
43
44 merged = sync_merge(name: "mergeFence", fd1: fence, fd2: fence);
45 valid = sw_sync_fence_is_valid(fd: fence);
46 ASSERT(valid, "Failure merging fence\n");
47
48 ASSERT(sync_fence_count_with_status(merged, FENCE_STATUS_SIGNALED) == 0,
49 "fence signaled too early!\n");
50
51 sw_sync_timeline_inc(fd: timeline, count: 5);
52 ASSERT(sync_fence_count_with_status(merged, FENCE_STATUS_SIGNALED) == 1,
53 "fence did not signal!\n");
54
55 sw_sync_fence_destroy(fd: merged);
56 sw_sync_fence_destroy(fd: fence);
57 sw_sync_timeline_destroy(fd: timeline);
58
59 return 0;
60}
61

source code of linux/tools/testing/selftests/sync/sync_merge.c