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70 lines
2.2 KiB
70 lines
2.2 KiB
7 months ago
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/*
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* Copyright 2021 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 specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <android-base/thread_annotations.h>
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#include <android/gui/ITunnelModeEnabledListener.h>
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#include <binder/IBinder.h>
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#include <unordered_map>
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namespace android {
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class Layer;
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class SurfaceFlinger;
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class TunnelModeEnabledReporter : public IBinder::DeathRecipient {
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public:
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TunnelModeEnabledReporter();
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// Checks if there is a tunnel mode enabled state change and if so, dispatches the updated
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// tunnel mode enabled/disabled state to the registered listeners
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// This method performs layer stack traversals, so mStateLock must be held when calling this
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// method.
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void updateTunnelModeStatus();
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// Dispatches tunnelModeEnabled to all registered listeners
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void dispatchTunnelModeEnabled(bool tunnelModeEnabled);
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// Override for IBinder::DeathRecipient
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void binderDied(const wp<IBinder>&) override;
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// Registers a TunnelModeEnabled listener
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void addListener(const sp<gui::ITunnelModeEnabledListener>& listener);
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// Deregisters a TunnelModeEnabled listener
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void removeListener(const sp<gui::ITunnelModeEnabledListener>& listener);
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inline void incrementTunnelModeCount() { mTunnelModeCount++; }
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inline void decrementTunnelModeCount() { mTunnelModeCount--; }
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private:
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mutable std::mutex mMutex;
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struct WpHash {
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size_t operator()(const wp<IBinder>& p) const {
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return std::hash<IBinder*>()(p.unsafe_get());
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}
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};
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std::unordered_map<wp<IBinder>, sp<gui::ITunnelModeEnabledListener>, WpHash> mListeners
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GUARDED_BY(mMutex);
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bool mTunnelModeEnabled GUARDED_BY(mMutex) = false;
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uint32_t mTunnelModeCount = 0;
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};
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} // namespace android
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