//
//  SDLQPSCounter.swift
//  Tun
//
//  Created by 安礼成 on 2024/4/16.
//

import Foundation

// 计数器，用来统计qps
class SDLQPSCounter: @unchecked Sendable {
    private var count = 0
    private let timer: DispatchSourceTimer
    private let label: String
    private let queue = DispatchQueue(label: "com.punchnet.qps")
    
    init(label: String) {
        self.label = label
        timer = DispatchSource.makeTimerSource(queue: queue)
        timer.schedule(deadline: .now(), repeating: .seconds(1), leeway: .milliseconds(100))
        timer.setEventHandler { [weak self] in
            guard let self = self else { return }
            NSLog("[\(self.label)] QPS: \(self.count)")
            self.count = 0
        }
        timer.resume()
    }
    
    func increment(num: Int = 1) {
        queue.async {
            self.count += num
        }
    }
    
    deinit {
        timer.cancel()
    }
}