jiuyiUniapp/service/node_modules/react-native/ReactCommon/react/runtime/BufferedRuntimeExecutor.h

51 lines
1.2 KiB
C
Raw Normal View History

2025-02-13 09:59:20 +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.
*/
#pragma once
#include <ReactCommon/RuntimeExecutor.h>
#include <jsi/jsi.h>
#include <atomic>
#include <queue>
namespace facebook::react {
class BufferedRuntimeExecutor {
public:
using Work = std::function<void(jsi::Runtime& runtime)>;
// A utility structure to track pending work in the order of when they arrive.
struct BufferedWork {
uint64_t index_;
Work work_;
bool operator<(const BufferedWork& rhs) const {
// Higher index has lower priority, so this inverted comparison puts
// the smaller index on top of the queue.
return index_ > rhs.index_;
}
};
BufferedRuntimeExecutor(RuntimeExecutor runtimeExecutor);
void execute(Work&& callback);
// Flush buffered JS calls and then diable JS buffering
void flush();
private:
// Perform flushing without locking mechanism
void unsafeFlush();
RuntimeExecutor runtimeExecutor_;
std::atomic<bool> isBufferingEnabled_;
std::mutex lock_;
std::atomic<uint64_t> lastIndex_;
std::priority_queue<BufferedWork> queue_;
};
} // namespace facebook::react