1 /*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "rs_profiler_settings.h"
17
18 #include <string>
19
20 namespace OHOS::Rosen {
21
22 std::mutex SystemParameter::mutex_;
23 std::vector<SystemParameter*> SystemParameter::registry_;
24
SystemParameter(std::string name)25 SystemParameter::SystemParameter(std::string name) : name_(std::move(name))
26 {
27 if (!name_.empty() && !Exists(name_)) {
28 const std::lock_guard<std::mutex> guard(mutex_);
29 registry_.emplace_back(this);
30 }
31 }
32
~SystemParameter()33 SystemParameter::~SystemParameter()
34 {
35 const std::lock_guard<std::mutex> guard(mutex_);
36 const auto position = std::find(registry_.begin(), registry_.end(), this);
37 if (position != registry_.end()) {
38 registry_.erase(position);
39 }
40 }
41
operator =(const SystemParameter & parameter)42 SystemParameter& SystemParameter::operator=(const SystemParameter& parameter)
43 {
44 if (this != ¶meter) {
45 FromString(parameter.ToString());
46 }
47 return *this;
48 }
49
Find(const std::string & name)50 SystemParameter* SystemParameter::Find(const std::string& name)
51 {
52 const std::lock_guard<std::mutex> guard(mutex_);
53 const auto parameter = std::find_if(
54 registry_.begin(), registry_.end(), [&name](SystemParameter* parameter) { return parameter->Name() == name; });
55 return (parameter != registry_.end()) ? *parameter : nullptr;
56 }
57
Exists(const std::string & name)58 bool SystemParameter::Exists(const std::string& name)
59 {
60 return Find(name) != nullptr;
61 }
62
Set(const std::string & name,const std::string & value)63 bool SystemParameter::Set(const std::string& name, const std::string& value)
64 {
65 if (auto parameter = Find(name)) {
66 parameter->FromString(value);
67 return true;
68 }
69 return false;
70 }
71
Get(const std::string & name)72 std::string SystemParameter::Get(const std::string& name)
73 {
74 static const std::string DUMMY;
75 const auto parameter = Find(name);
76 return parameter ? parameter->ToString() : DUMMY;
77 }
78
Dump()79 std::string SystemParameter::Dump()
80 {
81 std::string out;
82 const std::lock_guard<std::mutex> guard(mutex_);
83 for (const auto parameter : registry_) {
84 out += parameter->Name() + " = " + parameter->ToString() + "\n";
85 }
86 return out;
87 }
88
89 } // namespace OHOS::Rosen