1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <gtest/gtest.h>
18
19#include <gui/SurfaceComposerClient.h>
20
21#include <utils/String8.h>
22
23#include <thread>
24#include <functional>
25#include <layerproto/LayerProtoParser.h>
26
27namespace android {
28
29TEST(SurfaceFlingerStress, create_and_destroy) {
30    auto do_stress = []() {
31        sp<SurfaceComposerClient> client = new SurfaceComposerClient;
32        ASSERT_EQ(NO_ERROR, client->initCheck());
33        for (int j = 0; j < 1000; j++) {
34            auto surf = client->createSurface(String8("t"), 100, 100,
35                    PIXEL_FORMAT_RGBA_8888, 0);
36            ASSERT_TRUE(surf != nullptr);
37            client->destroySurface(surf->getHandle());
38        }
39    };
40
41    std::vector<std::thread> threads;
42    for (int i = 0; i < 10; i++) {
43        threads.push_back(std::thread(do_stress));
44    }
45    for (auto& thread : threads) {
46        thread.join();
47    }
48}
49
50surfaceflinger::LayersProto generateLayerProto() {
51    surfaceflinger::LayersProto layersProto;
52    std::array<surfaceflinger::LayerProto*, 10> layers = {};
53    for (size_t i = 0; i < layers.size(); ++i) {
54        layers[i] = layersProto.add_layers();
55        layers[i]->set_id(i);
56    }
57
58    layers[0]->add_children(1);
59    layers[1]->set_parent(0);
60    layers[0]->add_children(2);
61    layers[2]->set_parent(0);
62    layers[0]->add_children(3);
63    layers[3]->set_parent(0);
64    layers[2]->add_children(4);
65    layers[4]->set_parent(2);
66    layers[3]->add_children(5);
67    layers[5]->set_parent(3);
68    layers[5]->add_children(6);
69    layers[6]->set_parent(5);
70    layers[5]->add_children(7);
71    layers[7]->set_parent(5);
72    layers[6]->add_children(8);
73    layers[8]->set_parent(6);
74
75    layers[4]->set_z_order_relative_of(3);
76    layers[3]->add_relatives(4);
77    layers[8]->set_z_order_relative_of(9);
78    layers[9]->add_relatives(8);
79    layers[3]->set_z_order_relative_of(1);
80    layers[1]->add_relatives(3);
81
82/* ----------------------------
83 *       - 0 -      - 9 -
84 *      /  |  \
85 *     1   2   3(1)
86 *         |    |
87 *         4(3) 5
88 *             / \
89 *            6   7
90 *            |
91 *            8(9)
92 * -------------------------- */
93
94    return layersProto;
95}
96
97TEST(LayerProtoStress, mem_info) {
98    std::string cmd = "dumpsys meminfo ";
99    cmd += std::to_string(getpid());
100    system(cmd.c_str());
101    for (int i = 0; i < 100000; i++) {
102        surfaceflinger::LayersProto layersProto = generateLayerProto();
103        auto layerTree = surfaceflinger::LayerProtoParser::generateLayerTree(layersProto);
104        // Allow some layerTrees to just fall out of scope (instead of std::move)
105        if (i % 2) {
106            surfaceflinger::LayerProtoParser::layersToString(std::move(layerTree));
107        }
108    }
109    system(cmd.c_str());
110}
111
112}
113