d1ab8cd588
hardware/google/pixel/power-libperfmgr from android11-release Signed-off-by: Subhajeet Muhuri <subhajeet.muhuri@gmail.com>
98 lines
3.4 KiB
C++
98 lines
3.4 KiB
C++
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specic language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_LIBPERFMGR_HINTMANAGER_H_
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#define ANDROID_LIBPERFMGR_HINTMANAGER_H_
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#include <cstddef>
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#include <map>
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#include <memory>
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#include <string>
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#include <utility>
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#include <vector>
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#include "perfmgr/NodeLooperThread.h"
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namespace android {
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namespace perfmgr {
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// HintManager is the external interface of the library to be used by PowerHAL
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// to do power hints with sysfs nodes. HintManager maintains a representation of
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// the actions that are parsed from the configuration file as a mapping from a
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// PowerHint to the set of actions that are performed for that PowerHint.
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class HintManager {
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public:
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HintManager(sp<NodeLooperThread> nm,
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const std::map<std::string, std::vector<NodeAction>>& actions)
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: nm_(std::move(nm)), actions_(actions) {}
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~HintManager() {
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if (nm_.get() != nullptr) nm_->Stop();
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}
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// Return true if the sysfs manager thread is running.
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bool IsRunning() const;
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// Do hint based on hint_type which defined as PowerHint in the actions
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// section of the JSON config. Return true with valid hint_type and also
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// NodeLooperThread::Request succeeds; otherwise return false.
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bool DoHint(const std::string& hint_type);
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// Do hint with the override time for all actions defined for the given
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// hint_type. Return true with valid hint_type and also
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// NodeLooperThread::Request succeeds; otherwise return false.
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bool DoHint(const std::string& hint_type,
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std::chrono::milliseconds timeout_ms_override);
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// End hint early. Return true with valid hint_type and also
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// NodeLooperThread::Cancel succeeds; otherwise return false.
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bool EndHint(const std::string& hint_type);
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// Query if given hint supported.
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bool IsHintSupported(const std::string& hint_type) const;
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// Static method to construct HintManager from the JSON config file.
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static std::unique_ptr<HintManager> GetFromJSON(
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const std::string& config_path, bool start = true);
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// Return available hints managed by HintManager
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std::vector<std::string> GetHints() const;
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// Dump internal status to fd
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void DumpToFd(int fd);
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// Start thread loop
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bool Start();
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protected:
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static std::vector<std::unique_ptr<Node>> ParseNodes(
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const std::string& json_doc);
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static std::map<std::string, std::vector<NodeAction>> ParseActions(
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const std::string& json_doc,
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const std::vector<std::unique_ptr<Node>>& nodes);
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private:
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HintManager(HintManager const&) = delete;
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void operator=(HintManager const&) = delete;
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bool ValidateHint(const std::string& hint_type) const;
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sp<NodeLooperThread> nm_;
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const std::map<std::string, std::vector<NodeAction>> actions_;
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};
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} // namespace perfmgr
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} // namespace android
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#endif // ANDROID_LIBPERFMGR_HINTMANAGER_H_
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