Files
react-native/ReactCommon/react/renderer/scheduler/SynchronousEventBeat.cpp
T
Samuel Susla 3a9e14e8a9 Add synchronous access to the runtime to RuntimeScheduler
Summary:
Changelog: [internal]

Introduces synchronous access to the runtime from RuntimeScheduler.
At the moment, this is not used anywhere.

In case RuntimeScheduler isn't defined (controlled by MC), falls back to RuntimeExecutor.

Reviewed By: mdvacca

Differential Revision: D28024380

fbshipit-source-id: 90be36dd390202540ed51940a4396040f043cd90
2021-05-25 07:42:06 -07:00

60 lines
1.5 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 "SynchronousEventBeat.h"
#include <react/debug/react_native_assert.h>
namespace facebook {
namespace react {
SynchronousEventBeat::SynchronousEventBeat(
RunLoopObserver::Unique uiRunLoopObserver,
RuntimeExecutor runtimeExecutor,
std::shared_ptr<RuntimeScheduler> const &runtimeScheduler)
: EventBeat({}),
uiRunLoopObserver_(std::move(uiRunLoopObserver)),
runtimeExecutor_(std::move(runtimeExecutor)),
runtimeScheduler_(runtimeScheduler) {
uiRunLoopObserver_->setDelegate(this);
uiRunLoopObserver_->enable();
}
void SynchronousEventBeat::activityDidChange(
RunLoopObserver::Delegate const *delegate,
RunLoopObserver::Activity activity) const noexcept {
react_native_assert(delegate == this);
lockExecutorAndBeat();
}
void SynchronousEventBeat::induce() const {
if (!this->isRequested_) {
return;
}
if (uiRunLoopObserver_->isOnRunLoopThread()) {
this->lockExecutorAndBeat();
}
}
void SynchronousEventBeat::lockExecutorAndBeat() const {
if (!this->isRequested_) {
return;
}
if (runtimeScheduler_) {
runtimeScheduler_->executeNowOnTheSameThread(
[this](jsi::Runtime &runtime) { beat(runtime); });
} else {
executeSynchronouslyOnSameThread_CAN_DEADLOCK(
runtimeExecutor_, [this](jsi::Runtime &runtime) { beat(runtime); });
}
}
} // namespace react
} // namespace facebook