amis-rpc-design/node_modules/react-native/ReactCommon/react/renderer/mounting/ShadowTreeRegistry.cpp

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2023-10-07 19:42:30 +08:00
/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#include "ShadowTreeRegistry.h"
#include <react/debug/react_native_assert.h>
namespace facebook::react {
ShadowTreeRegistry::~ShadowTreeRegistry() {
react_native_assert(
registry_.empty() && "Deallocation of non-empty `ShadowTreeRegistry`.");
}
void ShadowTreeRegistry::add(std::unique_ptr<ShadowTree> &&shadowTree) const {
std::unique_lock lock(mutex_);
registry_.emplace(shadowTree->getSurfaceId(), std::move(shadowTree));
}
std::unique_ptr<ShadowTree> ShadowTreeRegistry::remove(
SurfaceId surfaceId) const {
std::unique_lock lock(mutex_);
auto iterator = registry_.find(surfaceId);
if (iterator == registry_.end()) {
return {};
}
auto shadowTree = std::unique_ptr<ShadowTree>(iterator->second.release());
registry_.erase(iterator);
return shadowTree;
}
bool ShadowTreeRegistry::visit(
SurfaceId surfaceId,
std::function<void(const ShadowTree &shadowTree)> const &callback) const {
std::shared_lock lock(mutex_);
auto iterator = registry_.find(surfaceId);
if (iterator == registry_.end()) {
return false;
}
callback(*iterator->second);
return true;
}
void ShadowTreeRegistry::enumerate(
std::function<void(const ShadowTree &shadowTree, bool &stop)> const
&callback) const {
std::shared_lock lock(mutex_);
auto stop = false;
for (auto const &pair : registry_) {
callback(*pair.second, stop);
if (stop) {
return;
}
}
}
} // namespace facebook::react