Files
react-native/ReactCommon/react/nativemodule/core/LongLivedObject.h
T
Kevin GozaliandFacebook GitHub Bot 7c93f5b001 Move TurboModule Core from ReactCommon/turbomodule to ReactCommon/react/nativemodule
Summary:
This diff moves the code of TurboModule Core from ReactCommon/turbomodule to ReactCommon/react/nativemodule

For iOS: Pod spec name stays as "ReactCommon/turbomodule/..." for now, only the source/header location is affected. The target will be renamed/restructured closer to TurboModule rollout.

changelog: [internal] Internal

Reviewed By: RSNara

Differential Revision: D23362253

fbshipit-source-id: c2c8207578e50821c7573255d4319b9051b58a37
2020-09-19 00:42:30 -07:00

57 lines
1.4 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.
*/
#pragma once
#include <memory>
#include <mutex>
#include <unordered_set>
namespace facebook {
namespace react {
/**
* A simple wrapper class that can be registered to a collection that keep it
* alive for extended period of time. This object can be removed from the
* collection when needed.
*
* The subclass of this class must be created using std::make_shared<T>().
* After creation, add it to the `LongLivedObjectCollection`.
* When done with the object, call `allowRelease()` to allow the OS to release
* it.
*/
class LongLivedObject {
public:
void allowRelease();
protected:
LongLivedObject();
};
/**
* A singleton, thread-safe, write-only collection for the `LongLivedObject`s.
*/
class LongLivedObjectCollection {
public:
static LongLivedObjectCollection &get();
LongLivedObjectCollection(LongLivedObjectCollection const &) = delete;
void operator=(LongLivedObjectCollection const &) = delete;
void add(std::shared_ptr<LongLivedObject> o) const;
void remove(const LongLivedObject *o) const;
void clear() const;
private:
LongLivedObjectCollection();
mutable std::unordered_set<std::shared_ptr<LongLivedObject>> collection_;
mutable std::mutex collectionMutex_;
};
} // namespace react
} // namespace facebook