51 lines
1.3 KiB
Swift
51 lines
1.3 KiB
Swift
//
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// SafeTimer.swift
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// VoidLink
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//
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// Created by True砖家 on 2025/9/9.
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// Copyright © 2025 True砖家@Bilibili. All rights reserved.
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//
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class SafeTimer {
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private var timer: DispatchSourceTimer
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private(set) var isRunning = false
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private var interval: TimeInterval = 0
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init(interval: TimeInterval = 1.0, queue: DispatchQueue = .global(), handler: @escaping () -> Void) {
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timer = DispatchSource.makeTimerSource(queue: queue)
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timer.schedule(deadline: .now(), repeating: interval)
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timer.setEventHandler(handler: handler)
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self.interval = interval
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// 注意：这里不调用 resume，保持 suspended，等 start() 时才运行
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}
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public func resume() {
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guard !isRunning else { return }
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timer.resume()
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isRunning = true
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}
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public func suspend() {
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guard isRunning else { return }
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timer.suspend()
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isRunning = false
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}
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func restart() {
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if isRunning {
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timer.suspend()
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isRunning = false
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}
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timer.schedule(deadline: .now(), repeating: self.interval) // 重置时间
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timer.resume()
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isRunning = true
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}
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deinit {
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if !timer.isCancelled {
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timer.cancel()
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}
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}
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}
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