services/surfaceflinger/RenderResourceCache.h

/*
 * Copyright (C) 2025 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 <binder/IBinder.h>
#include <gui/LocklessQueue.h>
#include <map>

namespace android {
struct IPCServerResourceCache;

namespace gui {
struct GraphicBuffersRegisterInfo;
struct GraphicBuffersUnregisterInfo;
} // namespace gui
} // namespace android

namespace android::surfaceflinger {

class RenderResourceCache : public IBinder::DeathRecipient {
public:
    RenderResourceCache();
    ~RenderResourceCache() override;

    void queueRegisterGraphicBuffers(const gui::GraphicBuffersRegisterInfo& info);
    void queueUnregisterGraphicBuffers(const gui::GraphicBuffersUnregisterInfo& info);

    void processPendingOperations();

    std::shared_ptr<IPCServerResourceCache> getCache(const sp<IBinder>& token);

private:
    std::shared_ptr<IPCServerResourceCache> createCache(const sp<IBinder>& token);
    void binderDied(const wp<IBinder>& binder) override;

    std::map<wp<IBinder>, std::shared_ptr<IPCServerResourceCache>> mCaches;
    LocklessQueue<std::function<void()>> mPendingOps;
};

} // namespace android::surfaceflinger