Files
react-native/ReactCommon/fabric/core/events/EventQueue.h
T
Andres Suarez 3b31e69e28 Tidy up license headers [2/n]
Summary: Changelog: [General] [Fixed] - License header cleanup

Reviewed By: yungsters

Differential Revision: D17952694

fbshipit-source-id: 17c87de7ebb271fa2ac8d00af72a4d1addef8bd0
2019-10-16 10:06:34 -07:00

71 lines
1.7 KiB
C++

/*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#pragma once
#include <memory>
#include <mutex>
#include <vector>
#include <jsi/jsi.h>
#include <react/core/EventBeat.h>
#include <react/core/EventPipe.h>
#include <react/core/RawEvent.h>
#include <react/core/StatePipe.h>
#include <react/core/StateUpdate.h>
namespace facebook {
namespace react {
/*
* Event Queue synchronized with given Event Beat and dispatching event
* using given Event Pipe.
*/
class EventQueue {
public:
EventQueue(
EventPipe eventPipe,
StatePipe statePipe,
std::unique_ptr<EventBeat> eventBeat);
virtual ~EventQueue() = default;
/*
* Enqueues and (probably later) dispatch a given event.
* Can be called on any thread.
*/
void enqueueEvent(const RawEvent &rawEvent) const;
/*
* Enqueues and (probably later) dispatch a given state update.
* Can be called on any thread.
*/
void enqueueStateUpdate(const StateUpdate &stateUpdate) const;
protected:
/*
* Called on any enqueue operation.
* Override in subclasses to trigger beat `request` and/or beat `induce`.
* Default implementation does nothing.
*/
virtual void onEnqueue() const;
void onBeat(jsi::Runtime &runtime) const;
void flushEvents(jsi::Runtime &runtime) const;
void flushStateUpdates() const;
const EventPipe eventPipe_;
const StatePipe statePipe_;
const std::unique_ptr<EventBeat> eventBeat_;
// Thread-safe, protected by `queueMutex_`.
mutable std::vector<RawEvent> eventQueue_;
mutable std::vector<StateUpdate> stateUpdateQueue_;
mutable std::mutex queueMutex_;
};
} // namespace react
} // namespace facebook