| /* |
| * 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 A_LOOPER_H_ |
| |
| #define A_LOOPER_H_ |
| |
| #include <media/stagefright/foundation/ABase.h> |
| #include <utils/Errors.h> |
| #include <utils/KeyedVector.h> |
| #include <utils/List.h> |
| #include <utils/RefBase.h> |
| #include <utils/threads.h> |
| |
| namespace android { |
| |
| struct AHandler; |
| struct AMessage; |
| |
| struct ALooper : public RefBase { |
| typedef int32_t event_id; |
| typedef int32_t handler_id; |
| |
| ALooper(); |
| |
| handler_id registerHandler(const sp<AHandler> &handler); |
| void unregisterHandler(handler_id handlerID); |
| |
| status_t start( |
| bool runOnCallingThread = false, |
| bool canCallJava = false, |
| int32_t priority = PRIORITY_DEFAULT |
| ); |
| |
| status_t stop(); |
| |
| static int64_t GetNowUs(); |
| |
| protected: |
| virtual ~ALooper(); |
| |
| private: |
| friend struct ALooperRoster; |
| |
| struct Event { |
| int64_t mWhenUs; |
| sp<AMessage> mMessage; |
| }; |
| |
| Mutex mLock; |
| Condition mQueueChangedCondition; |
| |
| List<Event> mEventQueue; |
| |
| struct LooperThread; |
| sp<LooperThread> mThread; |
| bool mRunningLocally; |
| |
| void post(const sp<AMessage> &msg, int64_t delayUs); |
| bool loop(); |
| |
| DISALLOW_EVIL_CONSTRUCTORS(ALooper); |
| }; |
| |
| } // namespace android |
| |
| #endif // A_LOOPER_H_ |