1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef A_LOOPER_ROSTER_H_ 18 19 #define A_LOOPER_ROSTER_H_ 20 21 #include <media/stagefright/foundation/ALooper.h> 22 #include <utils/KeyedVector.h> 23 24 namespace android { 25 26 struct ALooperRoster { 27 ALooperRoster(); 28 29 ALooper::handler_id registerHandler( 30 const sp<ALooper> looper, const sp<AHandler> &handler); 31 32 void unregisterHandler(ALooper::handler_id handlerID); 33 void unregisterStaleHandlers(); 34 35 status_t postMessage(const sp<AMessage> &msg, int64_t delayUs = 0); 36 void deliverMessage(const sp<AMessage> &msg); 37 38 status_t postAndAwaitResponse( 39 const sp<AMessage> &msg, sp<AMessage> *response); 40 41 void postReply(uint32_t replyID, const sp<AMessage> &reply); 42 43 sp<ALooper> findLooper(ALooper::handler_id handlerID); 44 45 private: 46 struct HandlerInfo { 47 wp<ALooper> mLooper; 48 wp<AHandler> mHandler; 49 }; 50 51 Mutex mLock; 52 KeyedVector<ALooper::handler_id, HandlerInfo> mHandlers; 53 ALooper::handler_id mNextHandlerID; 54 uint32_t mNextReplyID; 55 Condition mRepliesCondition; 56 57 KeyedVector<uint32_t, sp<AMessage> > mReplies; 58 59 DISALLOW_EVIL_CONSTRUCTORS(ALooperRoster); 60 }; 61 62 } // namespace android 63 64 #endif // A_LOOPER_ROSTER_H_ 65