feat: M3 mosh 挂起→恢复<3s（唤醒脉冲 + 会话状态机三相）
- SessionMachine 加 mosh 三相(moshActive/moshParked/moshResuming)+看门狗兜底， mosh 接管即拆 SSH、后台冻结不重建、前台唤醒脉冲等 SSP 续（+5 单测） - bridge.go: Node.WakeUp()(tsnet InjectEvent+MagicSock.Rebind/ReSTUN) + MoshRelay.Rebind()(同端口重开 loopback、泵按 socket 生成容错) - iosclient.cc: g_mosh_last_heard 探针(导出 mosh_last_heard_ms) + SIGCONT 全屏重绘 - MoshSession: nudge()(SIGCONT) + lastHeardMs()；SSHTerminalModel 前台脉冲三连 + healthy 轮询 + beginBackgroundTask；URL scheme 供无头前台唤醒 - 验证(vohive-vm over tsnet)：15s 冻结→前台 wake pulse→1.3s recovered，<3s Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
kid
@@ -22,6 +22,13 @@ public struct SessionMachine: Sendable, Equatable {
|
||||
case failed(reason: String)
|
||||
/// 用户主动关闭。
|
||||
case closed
|
||||
// —— M3 mosh 会话相（mosh 接管后，SSH 已拆，生命周期由 mosh SSP 承载）——
|
||||
/// mosh 已接管并活跃（底层 SSH 已拆除；transportClosed 不再影响）。
|
||||
case moshActive
|
||||
/// 进入后台，mosh 冻结（SSP 会在前台自动续传，不重建）。
|
||||
case moshParked
|
||||
/// 前台恢复中：已发唤醒脉冲，等 mosh SSP resync（记录第几次尝试，超时兜底）。
|
||||
case moshResuming(attempt: Int)
|
||||
}
|
||||
|
||||
public enum Event: Sendable, Equatable {
|
||||
@@ -35,6 +42,11 @@ public struct SessionMachine: Sendable, Equatable {
|
||||
case enteredForeground
|
||||
case closeRequested
|
||||
case retryRequested // 用户手动重试（从 failed 复位）
|
||||
// —— M3 mosh ——
|
||||
case moshEstablished // mosh 接管会话成功（此后拆 SSH）
|
||||
case moshHealthy // 前台恢复后收到服务器合法包（SSP 已续上）
|
||||
case moshExited(rc: Int) // mosh 主循环退出（会话结束）
|
||||
case resumeWatchdogFired // 恢复看门狗到点（本次唤醒脉冲未见 healthy）
|
||||
}
|
||||
|
||||
public enum Effect: Sendable, Equatable {
|
||||
@@ -43,6 +55,11 @@ public struct SessionMachine: Sendable, Equatable {
|
||||
case cancelReconnectTimer
|
||||
case teardownTransport
|
||||
case notify(String) // UI 提示
|
||||
// —— M3 mosh ——
|
||||
case nudgeResume // 打唤醒脉冲：tsnet WakeUp + relay Rebind + mosh SIGCONT
|
||||
case scheduleResumeWatchdog(ms: Int) // 排程恢复看门狗
|
||||
case cancelResumeWatchdog
|
||||
case teardownMosh // 拆除 mosh 会话（relay + 线程）
|
||||
}
|
||||
|
||||
public private(set) var phase: Phase = .idle
|
||||
@@ -52,11 +69,18 @@ public struct SessionMachine: Sendable, Equatable {
|
||||
/// 退避基数与上限（毫秒）。
|
||||
private let baseDelayMS: Int
|
||||
private let maxDelayMS: Int
|
||||
/// M3：单次唤醒脉冲后等 mosh SSP 续上的看门狗窗口；超时则再脉冲一次。
|
||||
public let resumeWatchdogMS: Int
|
||||
/// M3：最多打几次唤醒脉冲，仍未 healthy 则兜底全量重建。
|
||||
public let maxResumePulses: Int
|
||||
|
||||
public init(maxReconnectAttempts: Int = 6, baseDelayMS: Int = 500, maxDelayMS: Int = 16000) {
|
||||
public init(maxReconnectAttempts: Int = 6, baseDelayMS: Int = 500, maxDelayMS: Int = 16000,
|
||||
resumeWatchdogMS: Int = 3000, maxResumePulses: Int = 2) {
|
||||
self.maxReconnectAttempts = maxReconnectAttempts
|
||||
self.baseDelayMS = baseDelayMS
|
||||
self.maxDelayMS = maxDelayMS
|
||||
self.resumeWatchdogMS = resumeWatchdogMS
|
||||
self.maxResumePulses = maxResumePulses
|
||||
}
|
||||
|
||||
/// 指数退避：base * 2^(attempt-1)，封顶 maxDelayMS。
|
||||
@@ -135,10 +159,60 @@ public struct SessionMachine: Sendable, Equatable {
|
||||
phase = .backgroundParked
|
||||
return [.cancelReconnectTimer]
|
||||
|
||||
// —— M3 mosh 会话相 ——
|
||||
// mosh 接管成功（引导完成）：拆掉底层 SSH，进入 mosh 自持会话。
|
||||
case (.connected, .moshEstablished), (.reconnecting, .moshEstablished):
|
||||
phase = .moshActive
|
||||
return [.teardownTransport, .notify("mosh 已接管")]
|
||||
|
||||
// mosh 活跃期间底层 SSH 残连断开：忽略（mosh 不依赖 SSH）。
|
||||
case (.moshActive, .transportClosed):
|
||||
return []
|
||||
|
||||
// mosh 活跃 → 后台：冻结，不重建。
|
||||
case (.moshActive, .enteredBackground):
|
||||
phase = .moshParked
|
||||
return []
|
||||
|
||||
// mosh 后台 → 前台：打唤醒脉冲 + 排看门狗，等 SSP 续上。
|
||||
case (.moshParked, .enteredForeground):
|
||||
phase = .moshResuming(attempt: 1)
|
||||
return [.nudgeResume, .scheduleResumeWatchdog(ms: resumeWatchdogMS), .notify("恢复中…")]
|
||||
|
||||
// mosh 后台期间的杂项（底层断/重复进后台）：保持 parked。
|
||||
case (.moshParked, .transportClosed), (.moshParked, .enteredBackground):
|
||||
return []
|
||||
|
||||
// 恢复中收到服务器合法包（SSP 已续）：回到活跃。
|
||||
case (.moshResuming, .moshHealthy):
|
||||
phase = .moshActive
|
||||
return [.cancelResumeWatchdog, .notify("已恢复")]
|
||||
|
||||
// 恢复看门狗到点：未 healthy → 再脉冲；达上限 → 兜底全量重建。
|
||||
case (.moshResuming(let attempt), .resumeWatchdogFired):
|
||||
if attempt < maxResumePulses {
|
||||
phase = .moshResuming(attempt: attempt + 1)
|
||||
return [.nudgeResume, .scheduleResumeWatchdog(ms: resumeWatchdogMS)]
|
||||
}
|
||||
phase = .reconnecting(attempt: 1)
|
||||
return [.teardownMosh, .startConnect, .notify("mosh 恢复失败，重建会话…")]
|
||||
|
||||
// 恢复中又进后台：取消看门狗，回 parked。
|
||||
case (.moshResuming, .enteredBackground):
|
||||
phase = .moshParked
|
||||
return [.cancelResumeWatchdog]
|
||||
|
||||
// mosh 主循环退出（会话结束）：终态失败，可手动重试。
|
||||
case (.moshActive, .moshExited(let rc)),
|
||||
(.moshResuming, .moshExited(let rc)),
|
||||
(.moshParked, .moshExited(let rc)):
|
||||
phase = .failed(reason: "mosh 已结束（rc=\(rc)）")
|
||||
return [.cancelResumeWatchdog, .teardownMosh, .notify("mosh 会话结束")]
|
||||
|
||||
// —— 关闭 ——
|
||||
case (_, .closeRequested):
|
||||
phase = .closed
|
||||
return [.cancelReconnectTimer, .teardownTransport]
|
||||
return [.cancelReconnectTimer, .cancelResumeWatchdog, .teardownTransport, .teardownMosh]
|
||||
|
||||
// 其它组合不改变状态
|
||||
default:
|
||||
|
||||
@@ -125,4 +125,78 @@ struct SessionMachineTests {
|
||||
#expect(m2.reduce(.retryRequested) == [.startConnect])
|
||||
#expect(m2.phase == .connecting)
|
||||
}
|
||||
|
||||
// MARK: - M3 mosh 生命周期
|
||||
|
||||
private func connectedThenMosh() -> SessionMachine {
|
||||
var m = SessionMachine()
|
||||
_ = m.reduce(.connectRequested)
|
||||
_ = m.reduce(.established)
|
||||
return m
|
||||
}
|
||||
|
||||
@Test("mosh 接管拆 SSH，之后忽略 transportClosed")
|
||||
func moshTakeover() {
|
||||
var m = connectedThenMosh()
|
||||
let e = m.reduce(.moshEstablished)
|
||||
#expect(m.phase == .moshActive)
|
||||
#expect(e.contains(.teardownTransport))
|
||||
// 底层 SSH 残连断开，不影响 mosh
|
||||
#expect(m.reduce(.transportClosed(reason: "ssh eof")) == [])
|
||||
#expect(m.phase == .moshActive)
|
||||
}
|
||||
|
||||
@Test("mosh 后台→前台：唤醒脉冲 + 看门狗，收到 healthy 即恢复")
|
||||
func moshSuspendResumeHealthy() {
|
||||
var m = connectedThenMosh()
|
||||
_ = m.reduce(.moshEstablished)
|
||||
#expect(m.reduce(.enteredBackground) == [])
|
||||
#expect(m.phase == .moshParked)
|
||||
let e = m.reduce(.enteredForeground)
|
||||
#expect(m.phase == .moshResuming(attempt: 1))
|
||||
#expect(e.contains(.nudgeResume))
|
||||
#expect(e.contains(.scheduleResumeWatchdog(ms: 3000)))
|
||||
// SSP 续上
|
||||
let e2 = m.reduce(.moshHealthy)
|
||||
#expect(m.phase == .moshActive)
|
||||
#expect(e2.contains(.cancelResumeWatchdog))
|
||||
}
|
||||
|
||||
@Test("恢复看门狗：一次超时再脉冲，两次仍失败则兜底全量重建")
|
||||
func moshResumeWatchdogFallback() {
|
||||
var m = SessionMachine(resumeWatchdogMS: 3000, maxResumePulses: 2)
|
||||
_ = m.reduce(.connectRequested)
|
||||
_ = m.reduce(.established)
|
||||
_ = m.reduce(.moshEstablished)
|
||||
_ = m.reduce(.enteredBackground)
|
||||
_ = m.reduce(.enteredForeground) // moshResuming(1)
|
||||
// 第一次看门狗到点 → 再脉冲，进 moshResuming(2)
|
||||
let e1 = m.reduce(.resumeWatchdogFired)
|
||||
#expect(m.phase == .moshResuming(attempt: 2))
|
||||
#expect(e1.contains(.nudgeResume))
|
||||
// 第二次看门狗到点 → 兜底全量重建
|
||||
let e2 = m.reduce(.resumeWatchdogFired)
|
||||
#expect(m.phase == .reconnecting(attempt: 1))
|
||||
#expect(e2.contains(.teardownMosh))
|
||||
#expect(e2.contains(.startConnect))
|
||||
}
|
||||
|
||||
@Test("mosh 主循环退出转 failed 并拆除")
|
||||
func moshExited() {
|
||||
var m = connectedThenMosh()
|
||||
_ = m.reduce(.moshEstablished)
|
||||
let e = m.reduce(.moshExited(rc: 1))
|
||||
if case .failed = m.phase {} else { Issue.record("期望 failed，实际 \(m.phase)") }
|
||||
#expect(e.contains(.teardownMosh))
|
||||
}
|
||||
|
||||
@Test("mosh 恢复中进后台取消看门狗")
|
||||
func moshResumingToBackground() {
|
||||
var m = connectedThenMosh()
|
||||
_ = m.reduce(.moshEstablished)
|
||||
_ = m.reduce(.enteredBackground)
|
||||
_ = m.reduce(.enteredForeground) // moshResuming(1)
|
||||
#expect(m.reduce(.enteredBackground) == [.cancelResumeWatchdog])
|
||||
#expect(m.phase == .moshParked)
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user