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/*
* Copyright (C) 2011 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.
*/
#ifndef ANDROID_PRIVATE_GUI_COMPOSER_SERVICE_H
#define ANDROID_PRIVATE_GUI_COMPOSER_SERVICE_H
#include <stdint.h>
#include <sys/types.h>
#include <utils/Singleton.h>
#include <utils/StrongPointer.h>
namespace android {
// ---------------------------------------------------------------------------
class IMemoryHeap;
class ISurfaceComposer;
// ---------------------------------------------------------------------------
// 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.
//
// (It's not clear that using Singleton is useful here anymore.)
class ComposerService : public Singleton<ComposerService>
{
sp<ISurfaceComposer> mComposerService;
sp<IBinder::DeathRecipient> mDeathObserver;
Mutex mLock;
ComposerService();
void connectLocked();
void composerServiceDied();
friend class Singleton<ComposerService>;
public:
// Get a connection to the Composer Service. This will block until
// a connection is established.
static sp<ISurfaceComposer> getComposerService();
};
// ---------------------------------------------------------------------------
}; // namespace android
#endif // ANDROID_PRIVATE_GUI_COMPOSER_SERVICE_H
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