mirror of
https://github.com/status-im/react-native.git
synced 2025-02-05 14:13:26 +00:00
c25d5948a5
Summary: As we did in the previous diff, here we implemented `EventEmitter`'s ownership model as a `shared_ptr`. This change fixes problem with leaking `WeakObject`s which happens on hot-reload. So, in short: * `EventTargetWrapper` object owns `jsi::WeakObject` that can be converted to actual `jsi::Object` that represent event target in JavaScript realm; * `EventTargetWrapper` and `jsi::WeakObject` objects must be deallocated as soon as native part does not need them anymore; * `EventEmitter` objects retain `EventTarget` objects; * `EventEmitter` can loose event target object in case if assosiated `ShadowNode` got unmounted (not deallocated); in this case `EventEmitter` is loosing possibility to dispatch event even if some mounting-layer code is still retaining it. Reviewed By: mdvacca Differential Revision: D9762755 fbshipit-source-id: 96e989767a32914db9f4627fce51b044c71f257a
49 lines
1.1 KiB
C++
49 lines
1.1 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 <fabric/events/EventBeat.h>
|
|
#include <fabric/events/primitives.h>
|
|
#include <fabric/events/RawEvent.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, std::unique_ptr<EventBeat> eventBeat);
|
|
virtual ~EventQueue() = default;
|
|
|
|
/*
|
|
* Enqueues and (probably later) dispatch a given event.
|
|
* Can be called on any thread.
|
|
*/
|
|
virtual void enqueueEvent(const RawEvent &rawEvent) const;
|
|
|
|
protected:
|
|
|
|
void onBeat() const;
|
|
|
|
const EventPipe eventPipe_;
|
|
const std::unique_ptr<EventBeat> eventBeat_;
|
|
mutable std::vector<RawEvent> queue_; // Thread-safe, protected by `queueMutex_`.
|
|
mutable std::mutex queueMutex_;
|
|
};
|
|
|
|
} // namespace react
|
|
} // namespace facebook
|