mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Samuel Susla
e665a0f995
Summary: changelog: [internal] C++17 has implementation of shared_mutex in standard library. Let's use it instead of folly. Reviewed By: cipolleschi Differential Revision: D43275493 fbshipit-source-id: d766251226aa230110011aca94b4e697fe0d31a1
69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
/*
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* Copyright (c) Meta Platforms, Inc. and 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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#pragma once
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#include <butter/map.h>
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#include <mutex>
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#include <shared_mutex>
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#include <react/renderer/core/LayoutConstraints.h>
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#include <react/renderer/mounting/MountingCoordinator.h>
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#include <react/renderer/scheduler/SurfaceHandler.h>
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namespace facebook {
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namespace react {
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/*
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* `SurfaceManager` allows controlling React Native Surfaces via
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* `SurfaceHandler` without using `SurfaceHandler` directly. `SurfaceManager`
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* maintains a registry of `SurfaceHandler`s and allows to reference to them via
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* a `SurfaceId`.
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* The is supposed to be used during the transition period only.
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*/
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class SurfaceManager final {
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public:
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explicit SurfaceManager(Scheduler const &scheduler) noexcept;
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#pragma mark - Surface Management
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void startSurface(
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SurfaceId surfaceId,
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std::string const &moduleName,
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folly::dynamic const &props,
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LayoutConstraints const &layoutConstraints = {},
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LayoutContext const &layoutContext = {}) const noexcept;
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void stopSurface(SurfaceId surfaceId) const noexcept;
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Size measureSurface(
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SurfaceId surfaceId,
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LayoutConstraints const &layoutConstraints,
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LayoutContext const &layoutContext) const noexcept;
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void constraintSurfaceLayout(
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SurfaceId surfaceId,
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LayoutConstraints const &layoutConstraints,
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LayoutContext const &layoutContext) const noexcept;
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MountingCoordinator::Shared findMountingCoordinator(
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SurfaceId surfaceId) const noexcept;
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private:
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void visit(
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SurfaceId surfaceId,
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std::function<void(SurfaceHandler const &surfaceHandler)> const &callback)
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const noexcept;
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Scheduler const &scheduler_;
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mutable std::shared_mutex mutex_; // Protects `registry_`.
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mutable butter::map<SurfaceId, SurfaceHandler> registry_{};
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};
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} // namespace react
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} // namespace facebook
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