AHandler.h revision 5804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14
172961230a5890071bcca436eb5630172ce84ec41Andreas Huber/* 272961230a5890071bcca436eb5630172ce84ec41Andreas Huber * Copyright (C) 2010 The Android Open Source Project 372961230a5890071bcca436eb5630172ce84ec41Andreas Huber * 472961230a5890071bcca436eb5630172ce84ec41Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 572961230a5890071bcca436eb5630172ce84ec41Andreas Huber * you may not use this file except in compliance with the License. 672961230a5890071bcca436eb5630172ce84ec41Andreas Huber * You may obtain a copy of the License at 772961230a5890071bcca436eb5630172ce84ec41Andreas Huber * 872961230a5890071bcca436eb5630172ce84ec41Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 972961230a5890071bcca436eb5630172ce84ec41Andreas Huber * 1072961230a5890071bcca436eb5630172ce84ec41Andreas Huber * Unless required by applicable law or agreed to in writing, software 1172961230a5890071bcca436eb5630172ce84ec41Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 1272961230a5890071bcca436eb5630172ce84ec41Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1372961230a5890071bcca436eb5630172ce84ec41Andreas Huber * See the License for the specific language governing permissions and 1472961230a5890071bcca436eb5630172ce84ec41Andreas Huber * limitations under the License. 1572961230a5890071bcca436eb5630172ce84ec41Andreas Huber */ 1672961230a5890071bcca436eb5630172ce84ec41Andreas Huber 1772961230a5890071bcca436eb5630172ce84ec41Andreas Huber#ifndef A_HANDLER_H_ 1872961230a5890071bcca436eb5630172ce84ec41Andreas Huber 1972961230a5890071bcca436eb5630172ce84ec41Andreas Huber#define A_HANDLER_H_ 2072961230a5890071bcca436eb5630172ce84ec41Andreas Huber 2172961230a5890071bcca436eb5630172ce84ec41Andreas Huber#include <media/stagefright/foundation/ALooper.h> 22f09611f2f33752afc28141e1bbaa897651c05d6fMarco Nelissen#include <utils/KeyedVector.h> 2372961230a5890071bcca436eb5630172ce84ec41Andreas Huber#include <utils/RefBase.h> 2472961230a5890071bcca436eb5630172ce84ec41Andreas Huber 2572961230a5890071bcca436eb5630172ce84ec41Andreas Hubernamespace android { 2672961230a5890071bcca436eb5630172ce84ec41Andreas Huber 2772961230a5890071bcca436eb5630172ce84ec41Andreas Huberstruct AMessage; 2872961230a5890071bcca436eb5630172ce84ec41Andreas Huber 2972961230a5890071bcca436eb5630172ce84ec41Andreas Huberstruct AHandler : public RefBase { 3072961230a5890071bcca436eb5630172ce84ec41Andreas Huber AHandler() 31f09611f2f33752afc28141e1bbaa897651c05d6fMarco Nelissen : mID(0), 325804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar mVerboseStats(false), 33f09611f2f33752afc28141e1bbaa897651c05d6fMarco Nelissen mMessageCounter(0) { 3472961230a5890071bcca436eb5630172ce84ec41Andreas Huber } 3572961230a5890071bcca436eb5630172ce84ec41Andreas Huber 3672961230a5890071bcca436eb5630172ce84ec41Andreas Huber ALooper::handler_id id() const { 3772961230a5890071bcca436eb5630172ce84ec41Andreas Huber return mID; 3872961230a5890071bcca436eb5630172ce84ec41Andreas Huber } 3972961230a5890071bcca436eb5630172ce84ec41Andreas Huber 405804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar sp<ALooper> looper() const { 415804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar return mLooper.promote(); 425804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar } 435804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar 445804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar wp<ALooper> getLooper() const { 455804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar return mLooper; 465804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar } 475804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar 485804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar wp<AHandler> getHandler() const { 495804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar // allow getting a weak reference to a const handler 505804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar return const_cast<AHandler *>(this); 515804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar } 52e2b20987c2652a984d10520ef3542d50d91119c5Andreas Huber 5372961230a5890071bcca436eb5630172ce84ec41Andreas Huberprotected: 5472961230a5890071bcca436eb5630172ce84ec41Andreas Huber virtual void onMessageReceived(const sp<AMessage> &msg) = 0; 5572961230a5890071bcca436eb5630172ce84ec41Andreas Huber 5672961230a5890071bcca436eb5630172ce84ec41Andreas Huberprivate: 575804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar friend struct AMessage; // deliverMessage() 585804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar friend struct ALooperRoster; // setID() 5972961230a5890071bcca436eb5630172ce84ec41Andreas Huber 6072961230a5890071bcca436eb5630172ce84ec41Andreas Huber ALooper::handler_id mID; 615804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar wp<ALooper> mLooper; 6272961230a5890071bcca436eb5630172ce84ec41Andreas Huber 635804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar inline void setID(ALooper::handler_id id, wp<ALooper> looper) { 6472961230a5890071bcca436eb5630172ce84ec41Andreas Huber mID = id; 655804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar mLooper = looper; 6672961230a5890071bcca436eb5630172ce84ec41Andreas Huber } 6772961230a5890071bcca436eb5630172ce84ec41Andreas Huber 685804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar bool mVerboseStats; 69f09611f2f33752afc28141e1bbaa897651c05d6fMarco Nelissen uint32_t mMessageCounter; 70f09611f2f33752afc28141e1bbaa897651c05d6fMarco Nelissen KeyedVector<uint32_t, uint32_t> mMessages; 71f09611f2f33752afc28141e1bbaa897651c05d6fMarco Nelissen 725804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar void deliverMessage(const sp<AMessage> &msg); 735804a76ac5f9f3c311f1bbbcc5ebdc8f8568ae14Lajos Molnar 7472961230a5890071bcca436eb5630172ce84ec41Andreas Huber DISALLOW_EVIL_CONSTRUCTORS(AHandler); 7572961230a5890071bcca436eb5630172ce84ec41Andreas Huber}; 7672961230a5890071bcca436eb5630172ce84ec41Andreas Huber 7772961230a5890071bcca436eb5630172ce84ec41Andreas Huber} // namespace android 7872961230a5890071bcca436eb5630172ce84ec41Andreas Huber 7972961230a5890071bcca436eb5630172ce84ec41Andreas Huber#endif // A_HANDLER_H_ 80