1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/*
* Copyright (C) 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <cstdint>
#include <optional>
#include <string>
namespace android {
// Manages flags for SurfaceFlinger, including default values, system properties, and Mendel
// experiment configuration values.
class FlagManager {
public:
FlagManager() = default;
virtual ~FlagManager();
void dump(std::string& result) const;
int64_t demo_flag() const;
bool use_adpf_cpu_hint() const;
bool use_skia_tracing() const;
private:
friend class FlagManagerTest;
// Wrapper for mocking in test.
virtual std::string getServerConfigurableFlag(const std::string& experimentFlagName) const;
template <typename T>
T getValue(const std::string& experimentFlagName, std::optional<T> systemPropertyOpt,
T defaultValue) const;
};
} // namespace android
|
