65 lines
1.9 KiB
Swift
65 lines
1.9 KiB
Swift
//
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// SDLNetworkMonitor.swift
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// Tun
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//
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// Created by 安礼成 on 2024/5/16.
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//
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import Foundation
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import Network
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import Combine
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// 监控网络的变化
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class SDLNetworkMonitor: @unchecked Sendable {
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private var monitor: NWPathMonitor
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private var interfaceType: NWInterface.InterfaceType?
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private let publisher = PassthroughSubject<NWInterface.InterfaceType, Never>()
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private var cancel: AnyCancellable?
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public let eventStream: AsyncStream<MonitorEvent>
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private let eventContinuation: AsyncStream<MonitorEvent>.Continuation
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enum MonitorEvent {
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case changed
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case unreachable
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}
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init() {
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self.monitor = NWPathMonitor()
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(self.eventStream , self.eventContinuation) = AsyncStream.makeStream(of: MonitorEvent.self, bufferingPolicy: .unbounded)
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}
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func start() {
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self.monitor.pathUpdateHandler = {path in
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if path.status == .satisfied {
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if path.usesInterfaceType(.wifi) {
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self.publisher.send(.wifi)
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} else if path.usesInterfaceType(.cellular) {
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self.publisher.send(.cellular)
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} else if path.usesInterfaceType(.wiredEthernet) {
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self.publisher.send(.wiredEthernet)
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}
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} else {
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self.eventContinuation.yield(.unreachable)
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self.interfaceType = nil
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}
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}
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self.monitor.start(queue: DispatchQueue.global())
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self.cancel = publisher.throttle(for: 5.0, scheduler: DispatchQueue.global(), latest: true)
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.sink { type in
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if self.interfaceType != nil && self.interfaceType != type {
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self.eventContinuation.yield(.changed)
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}
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self.interfaceType = type
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}
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}
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deinit {
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self.monitor.cancel()
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self.cancel?.cancel()
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self.eventContinuation.finish()
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}
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}
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