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/*
* 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 <stdint.h>
#include <sys/types.h>
#include <android/gui/ISurfaceComposer.h>
#include <ui/DisplayId.h>
#include <utils/Singleton.h>
#include <utils/StrongPointer.h>
namespace android {
// ---------------------------------------------------------------------------
// ---------------------------------------------------------------------------
// This holds our connection to the composer service (i.e. SurfaceFlinger).
// If the remote side goes away, we will re-establish the connection.
// Users of this class should not retain the value from
// getComposerService() for an extended period.
//
// (TODO: b/219785927, It's not clear that using Singleton is useful here anymore.)
class ComposerServiceAIDL : public Singleton<ComposerServiceAIDL> {
sp<gui::ISurfaceComposer> mComposerService;
sp<IBinder::DeathRecipient> mDeathObserver;
mutable std::mutex mMutex;
ComposerServiceAIDL();
bool connectLocked();
void composerServiceDied();
friend class Singleton<ComposerServiceAIDL>;
public:
// Get a connection to the Composer Service. This will block until
// a connection is established. Returns null if permission is denied.
static sp<gui::ISurfaceComposer> getComposerService();
};
// ---------------------------------------------------------------------------
}; // namespace android
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