libs/gui/IProducerListener.cpp

/*
 * Copyright 2014 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.
 */

#include <binder/Parcel.h>

#include <gui/IProducerListener.h>

namespace android {

enum {
    ON_BUFFER_RELEASED = IBinder::FIRST_CALL_TRANSACTION,
};

class BpProducerListener : public BpInterface<IProducerListener>
{
public:
    BpProducerListener(const sp<IBinder>& impl)
        : BpInterface<IProducerListener>(impl) {}

    virtual ~BpProducerListener();

    virtual void onBufferReleased() {
        Parcel data, reply;
        data.writeInterfaceToken(IProducerListener::getInterfaceDescriptor());
        remote()->transact(ON_BUFFER_RELEASED, data, &reply, IBinder::FLAG_ONEWAY);
    }
};

// Out-of-line virtual method definition to trigger vtable emission in this
// translation unit (see clang warning -Wweak-vtables)
BpProducerListener::~BpProducerListener() {}

IMPLEMENT_META_INTERFACE(ProducerListener, "android.gui.IProducerListener")

status_t BnProducerListener::onTransact(uint32_t code, const Parcel& data,
        Parcel* reply, uint32_t flags) {
    switch (code) {
        case ON_BUFFER_RELEASED:
            CHECK_INTERFACE(IProducerListener, data, reply);
            onBufferReleased();
            return NO_ERROR;
    }
    return BBinder::onTransact(code, data, reply, flags);
}

} // namespace android