mirror of
https://github.com/status-im/react-native.git
synced 2025-02-24 07:08:27 +00:00
53 lines
1.3 KiB
C
53 lines
1.3 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 <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 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);
|
||
|
|
void remove(const LongLivedObject *o);
|
||
|
|
void clear();
|
||
|
|
|
||
|
|
private:
|
||
|
|
LongLivedObjectCollection();
|
||
|
|
std::unordered_set<std::shared_ptr<LongLivedObject>> collection_;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace react
|
||
|
|
} // namespace facebook
|