58 lines
1.5 KiB
Plaintext
58 lines
1.5 KiB
Plaintext
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/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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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 "RuntimeEventBeat.h"
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namespace facebook {
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namespace react {
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RuntimeEventBeat::RuntimeEventBeat(EventBeat::SharedOwnerBox const &ownerBox, RuntimeExecutor runtimeExecutor)
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: EventBeat(ownerBox), runtimeExecutor_(std::move(runtimeExecutor))
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{
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mainRunLoopObserver_ = CFRunLoopObserverCreateWithHandler(
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NULL /* allocator */,
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kCFRunLoopBeforeWaiting /* activities */,
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true /* repeats */,
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0 /* order */,
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^(CFRunLoopObserverRef observer, CFRunLoopActivity activity) {
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// Note: We only `induce` beat here; actual beat will be performed on
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// a different thread.
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this->induce();
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});
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assert(mainRunLoopObserver_);
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CFRunLoopAddObserver(CFRunLoopGetMain(), mainRunLoopObserver_, kCFRunLoopCommonModes);
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}
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RuntimeEventBeat::~RuntimeEventBeat()
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{
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CFRunLoopRemoveObserver(CFRunLoopGetMain(), mainRunLoopObserver_, kCFRunLoopCommonModes);
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CFRelease(mainRunLoopObserver_);
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}
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void RuntimeEventBeat::induce() const
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{
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if (!isRequested_ || isBusy_) {
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return;
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}
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isBusy_ = true;
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runtimeExecutor_([this, ownerBox = ownerBox_](jsi::Runtime &runtime) mutable {
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auto owner = ownerBox->owner.lock();
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if (!owner) {
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return;
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}
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this->beat(runtime);
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isBusy_ = false;
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});
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}
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} // namespace react
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} // namespace facebook
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