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63 lines
1.9 KiB
63 lines
1.9 KiB
5 years ago
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/*
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* Copyright (C) 2011 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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#ifndef ANDROID_PRIVATE_GUI_COMPOSER_SERVICE_H
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#define ANDROID_PRIVATE_GUI_COMPOSER_SERVICE_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <utils/Singleton.h>
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#include <utils/StrongPointer.h>
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namespace android {
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// ---------------------------------------------------------------------------
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class IMemoryHeap;
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class ISurfaceComposer;
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// ---------------------------------------------------------------------------
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// This holds our connection to the composer service (i.e. SurfaceFlinger).
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// If the remote side goes away, we will re-establish the connection.
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// Users of this class should not retain the value from
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// getComposerService() for an extended period.
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//
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// (It's not clear that using Singleton is useful here anymore.)
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class ComposerService : public Singleton<ComposerService>
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{
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sp<ISurfaceComposer> mComposerService;
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sp<IBinder::DeathRecipient> mDeathObserver;
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Mutex mLock;
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ComposerService();
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void connectLocked();
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void composerServiceDied();
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friend class Singleton<ComposerService>;
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public:
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// Get a connection to the Composer Service. This will block until
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// a connection is established.
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static sp<ISurfaceComposer> getComposerService();
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};
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// ---------------------------------------------------------------------------
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}; // namespace android
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#endif // ANDROID_PRIVATE_GUI_COMPOSER_SERVICE_H
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