mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
b42fdae3e7
Summary: The new methods provides a way to iterate over all registered shadow trees. Reviewed By: zackargyle, JoshuaGross, mdvacca Differential Revision: D17175954 fbshipit-source-id: e4e6ee5a0e0a4e4e36b99d546f8724b99559c8c2
57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
// Copyright (c) Facebook, Inc. and its affiliates.
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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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#include "ShadowTreeRegistry.h"
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namespace facebook {
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namespace react {
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void ShadowTreeRegistry::add(std::unique_ptr<ShadowTree> &&shadowTree) const {
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std::unique_lock<better::shared_mutex> lock(mutex_);
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registry_.emplace(shadowTree->getSurfaceId(), std::move(shadowTree));
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}
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std::unique_ptr<ShadowTree> ShadowTreeRegistry::remove(
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SurfaceId surfaceId) const {
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std::unique_lock<better::shared_mutex> lock(mutex_);
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auto iterator = registry_.find(surfaceId);
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auto shadowTree = std::unique_ptr<ShadowTree>(iterator->second.release());
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registry_.erase(iterator);
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return shadowTree;
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}
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bool ShadowTreeRegistry::visit(
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SurfaceId surfaceId,
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std::function<void(const ShadowTree &shadowTree)> callback) const {
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std::shared_lock<better::shared_mutex> lock(mutex_);
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auto iterator = registry_.find(surfaceId);
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if (iterator == registry_.end()) {
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return false;
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}
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callback(*iterator->second);
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return true;
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}
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void ShadowTreeRegistry::enumerate(
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std::function<void(const ShadowTree &shadowTree, bool &stop)> callback)
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const {
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std::shared_lock<better::shared_mutex> lock(mutex_);
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bool stop = false;
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for (auto const &pair : registry_) {
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callback(*pair.second, stop);
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if (stop) {
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break;
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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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