mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Samuel Susla
1b592631a7
Summary: Changelog: [internal] Current implementation of `AsynchronousEventBeat` dispatches lambdas through `RuntimeExecutor` regardless if it has done so previously. So if `AsynchronousEventBeat::induce` is called 30 times, it will dispatch 30 lambdas. In `AsynchronousEventBeatV2`, we make sure only single lambda is dispatched to `RuntimeExecutor` at a time. Reviewed By: mdvacca Differential Revision: D27940300 fbshipit-source-id: 2bad25c86315c1712b4a1da8c1d4702734cec70f
42 lines
1.1 KiB
C++
42 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.
|
|
*/
|
|
|
|
#include <ReactCommon/RuntimeExecutor.h>
|
|
#include <react/renderer/core/EventBeat.h>
|
|
#include <react/utils/RunLoopObserver.h>
|
|
|
|
namespace facebook::react {
|
|
|
|
/*
|
|
* Event beat associated with JavaScript runtime.
|
|
* The beat is called on `RuntimeExecutor`'s thread induced by the UI thread
|
|
* event loop.
|
|
*/
|
|
class AsynchronousEventBeatV2 : public EventBeat,
|
|
public RunLoopObserver::Delegate {
|
|
public:
|
|
AsynchronousEventBeatV2(
|
|
RunLoopObserver::Unique uiRunLoopObserver,
|
|
RuntimeExecutor runtimeExecutor);
|
|
|
|
void induce() const override;
|
|
|
|
#pragma mark - RunLoopObserver::Delegate
|
|
|
|
void activityDidChange(
|
|
RunLoopObserver::Delegate const *delegate,
|
|
RunLoopObserver::Activity activity) const noexcept override;
|
|
|
|
private:
|
|
RunLoopObserver::Unique uiRunLoopObserver_;
|
|
RuntimeExecutor runtimeExecutor_;
|
|
|
|
mutable std::atomic<bool> isBeatCallbackScheduled_{false};
|
|
};
|
|
|
|
} // namespace facebook::react
|