1/*
2 * sync fence wait 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_multi_timeline_wait(void)
33{
34 int timelineA, timelineB, timelineC;
35 int fenceA, fenceB, fenceC, merged;
36 int valid, active, signaled, ret;
37
38 timelineA = sw_sync_timeline_create();
39 timelineB = sw_sync_timeline_create();
40 timelineC = sw_sync_timeline_create();
41
42 fenceA = sw_sync_fence_create(fd: timelineA, name: "fenceA", value: 5);
43 fenceB = sw_sync_fence_create(fd: timelineB, name: "fenceB", value: 5);
44 fenceC = sw_sync_fence_create(fd: timelineC, name: "fenceC", value: 5);
45
46 merged = sync_merge(name: "mergeFence", fd1: fenceB, fd2: fenceA);
47 merged = sync_merge(name: "mergeFence", fd1: fenceC, fd2: merged);
48
49 valid = sw_sync_fence_is_valid(fd: merged);
50 ASSERT(valid, "Failure merging fence from various timelines\n");
51
52 /* Confirm fence isn't signaled */
53 active = sync_fence_count_with_status(fd: merged, FENCE_STATUS_ACTIVE);
54 ASSERT(active == 3, "Fence signaled too early!\n");
55
56 ret = sync_wait(fd: merged, timeout: 0);
57 ASSERT(ret == 0,
58 "Failure waiting on fence until timeout\n");
59
60 ret = sw_sync_timeline_inc(fd: timelineA, count: 5);
61 active = sync_fence_count_with_status(fd: merged, FENCE_STATUS_ACTIVE);
62 signaled = sync_fence_count_with_status(fd: merged, FENCE_STATUS_SIGNALED);
63 ASSERT(active == 2 && signaled == 1,
64 "Fence did not signal properly!\n");
65
66 ret = sw_sync_timeline_inc(fd: timelineB, count: 5);
67 active = sync_fence_count_with_status(fd: merged, FENCE_STATUS_ACTIVE);
68 signaled = sync_fence_count_with_status(fd: merged, FENCE_STATUS_SIGNALED);
69 ASSERT(active == 1 && signaled == 2,
70 "Fence did not signal properly!\n");
71
72 ret = sw_sync_timeline_inc(fd: timelineC, count: 5);
73 active = sync_fence_count_with_status(fd: merged, FENCE_STATUS_ACTIVE);
74 signaled = sync_fence_count_with_status(fd: merged, FENCE_STATUS_SIGNALED);
75 ASSERT(active == 0 && signaled == 3,
76 "Fence did not signal properly!\n");
77
78 /* confirm you can successfully wait */
79 ret = sync_wait(fd: merged, timeout: 100);
80 ASSERT(ret > 0, "Failure waiting on signaled fence\n");
81
82 sw_sync_fence_destroy(fd: merged);
83 sw_sync_fence_destroy(fd: fenceC);
84 sw_sync_fence_destroy(fd: fenceB);
85 sw_sync_fence_destroy(fd: fenceA);
86 sw_sync_timeline_destroy(fd: timelineC);
87 sw_sync_timeline_destroy(fd: timelineB);
88 sw_sync_timeline_destroy(fd: timelineA);
89
90 return 0;
91}
92

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