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Summary: @public EventQueue is a queue of events that synchronizing event dispatching with given Event Beat. The only difference between UnbatchedEventQueue and BatchedEventQueue is that UnbatchedEventQueue `induce` an Event Beat right after enqueing an event. Reviewed By: mdvacca Differential Revision: D8886225 fbshipit-source-id: fedba6fdff2ecb6f3c615cea09b5fdaa58890479
54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include "EventQueue.h"
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#include "EventEmitter.h"
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namespace facebook {
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namespace react {
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EventQueue::EventQueue(const EventPipe &eventPipe, std::unique_ptr<EventBeat> eventBeat):
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eventPipe_(eventPipe),
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eventBeat_(std::move(eventBeat)) {
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eventBeat_->setBeatCallback(std::bind(&EventQueue::onBeat, this));
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}
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void EventQueue::enqueueEvent(const RawEvent &rawEvent) const {
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std::lock_guard<std::mutex> lock(queueMutex_);
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queue_.push_back(rawEvent);
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}
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void EventQueue::onBeat() const {
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std::vector<RawEvent> queue;
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{
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std::lock_guard<std::mutex> lock(queueMutex_);
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if (queue_.size() == 0) {
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return;
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}
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queue = std::move(queue_);
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assert(queue_.size() == 0);
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}
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{
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std::lock_guard<std::recursive_mutex> lock(EventEmitter::DispatchMutex());
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for (const auto &event : queue) {
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eventPipe_(
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event.isDispachable() ? event.eventTarget : EmptyEventTarget,
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event.type,
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event.payload
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);
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}
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}
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}
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} // namespace react
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} // namespace facebook
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