18 lines
539 B
Kotlin
18 lines
539 B
Kotlin
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package com.gzzn.omms.msgexchange.processing
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import jakarta.inject.Singleton
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import java.util.concurrent.locks.ReentrantLock
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import kotlin.concurrent.withLock
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/**
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* 串行化“终态回填”与“人工重放”，避免旧回填任务在消息重新入队后写入信箱标记。
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* 生产只允许单活动实例；该锁处理同一实例内的 job 线程和管理请求并发。
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*/
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@Singleton
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class MessageLifecycleGate {
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private val lock = ReentrantLock()
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fun <T> exclusive(block: () -> T): T = lock.withLock(block)
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}
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