1 /* 2 * Copyright (C) 2019 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 _UI_INPUT_INPUTDISPATCHER_CONNECTION_H 18 #define _UI_INPUT_INPUTDISPATCHER_CONNECTION_H 19 20 #include "InputState.h" 21 22 #include <input/InputTransport.h> 23 #include <deque> 24 25 namespace android::inputdispatcher { 26 27 struct DispatchEntry; 28 29 /* Manages the dispatch state associated with a single input channel. */ 30 class Connection : public RefBase { 31 protected: 32 virtual ~Connection(); 33 34 public: 35 enum Status { 36 // Everything is peachy. 37 STATUS_NORMAL, 38 // An unrecoverable communication error has occurred. 39 STATUS_BROKEN, 40 // The input channel has been unregistered. 41 STATUS_ZOMBIE 42 }; 43 44 Status status; 45 std::shared_ptr<InputChannel> inputChannel; // never null 46 bool monitor; 47 InputPublisher inputPublisher; 48 InputState inputState; 49 50 // True if this connection is responsive. 51 // If this connection is not responsive, avoid publishing more events to it until the 52 // application consumes some of the input. 53 bool responsive = true; 54 55 // Queue of events that need to be published to the connection. 56 std::deque<DispatchEntry*> outboundQueue; 57 58 // Queue of events that have been published to the connection but that have not 59 // yet received a "finished" response from the application. 60 std::deque<DispatchEntry*> waitQueue; 61 62 Connection(const std::shared_ptr<InputChannel>& inputChannel, bool monitor, 63 const IdGenerator& idGenerator); 64 getInputChannelName()65 inline const std::string getInputChannelName() const { return inputChannel->getName(); } 66 67 const std::string getWindowName() const; 68 const char* getStatusLabel() const; 69 70 std::deque<DispatchEntry*>::iterator findWaitQueueEntry(uint32_t seq); 71 }; 72 73 } // namespace android::inputdispatcher 74 75 #endif // _UI_INPUT_INPUTDISPATCHER_CONNECTION_H 76