aosp12/frameworks/native/services/inputflinger/dispatcher/Connection.h

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2023-01-09 17:11:35 +08:00
/*
* Copyright (C) 2019 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 _UI_INPUT_INPUTDISPATCHER_CONNECTION_H
#define _UI_INPUT_INPUTDISPATCHER_CONNECTION_H
#include "InputState.h"
#include <input/InputTransport.h>
#include <deque>
namespace android::inputdispatcher {
struct DispatchEntry;
/* Manages the dispatch state associated with a single input channel. */
class Connection : public RefBase {
protected:
virtual ~Connection();
public:
enum Status {
// Everything is peachy.
STATUS_NORMAL,
// An unrecoverable communication error has occurred.
STATUS_BROKEN,
// The input channel has been unregistered.
STATUS_ZOMBIE
};
Status status;
std::shared_ptr<InputChannel> inputChannel; // never null
bool monitor;
InputPublisher inputPublisher;
InputState inputState;
// True if this connection is responsive.
// If this connection is not responsive, avoid publishing more events to it until the
// application consumes some of the input.
bool responsive = true;
// Queue of events that need to be published to the connection.
std::deque<DispatchEntry*> outboundQueue;
// Queue of events that have been published to the connection but that have not
// yet received a "finished" response from the application.
std::deque<DispatchEntry*> waitQueue;
Connection(const std::shared_ptr<InputChannel>& inputChannel, bool monitor,
const IdGenerator& idGenerator);
inline const std::string getInputChannelName() const { return inputChannel->getName(); }
const std::string getWindowName() const;
const char* getStatusLabel() const;
std::deque<DispatchEntry*>::iterator findWaitQueueEntry(uint32_t seq);
};
} // namespace android::inputdispatcher
#endif // _UI_INPUT_INPUTDISPATCHER_CONNECTION_H