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BPI-CM9-Linux/aml-comp/multimedia/aml_mp_sdk/utils/AmlMpEventHandler.h
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2026-08-24 10:03:24 +08:00

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/*
* Copyright (C) 2010 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 AML_MP_EVENT_HANDLER_H_
#define AML_MP_EVENT_HANDLER_H_
#include "AmlMpEventLooper.h"
#include <map>
#include "AmlMpRefBase.h"
namespace aml_mp {
struct AmlMpMessage;
struct AmlMpEventHandler : public AmlMpRefBase {
AmlMpEventHandler()
: mID(0),
mVerboseStats(false),
mMessageCounter(0) {
}
AmlMpEventLooper::handler_id id() const {
return mID;
}
sptr<AmlMpEventLooper> looper() const {
return mLooper.promote();
}
wptr<AmlMpEventLooper> getLooper() const {
return mLooper;
}
wptr<AmlMpEventHandler> getHandler() const {
// allow getting a weak reference to a const handler
return const_cast<AmlMpEventHandler *>(this);
}
protected:
virtual void onMessageReceived(const sptr<AmlMpMessage> &msg) = 0;
private:
friend struct AmlMpMessage; // deliverMessage()
friend struct AmlMpEventLooperRoster; // setID()
AmlMpEventLooper::handler_id mID;
wptr<AmlMpEventLooper> mLooper;
inline void setID(AmlMpEventLooper::handler_id id, const wptr<AmlMpEventLooper> &looper) {
mID = id;
mLooper = looper;
}
bool mVerboseStats;
uint32_t mMessageCounter;
std::map<uint32_t, uint32_t> mMessages;
void deliverMessage(const sptr<AmlMpMessage> &msg);
AmlMpEventHandler(const AmlMpEventHandler&) = delete;
AmlMpEventHandler& operator= (const AmlMpEventHandler&) = delete;
};
} // namespace aml_mp
#endif // A_HANDLER_H_