Android开发Kotlin语言协程中的并发问题和互斥锁

import kotlinx.coroutines.*
fun main() = runBlocking {
    launch {
        delay(1000L)
        println("World!")
    }
    println("Hello,")
}

import kotlinx.coroutines.*
import kotlinx.coroutines.sync.Mutex
import kotlinx.coroutines.sync.withLock
val mutex = Mutex()
var counter = 0
fun main() = runBlocking {
    val jobs = List(100) {
        launch {
            repeat(1000) {
                // 在这里使用 mutex 来保护对 counter 的访问
                mutex.withLock {
                    counter++
                }
            }
        }
    }
    jobs.forEach { it.join() }
    println("Counter = $counter")
}

import kotlinx.coroutines.*
import kotlinx.coroutines.sync.Mutex
val mutex = Mutex()
fun main() = runBlocking {
    launch {
        mutex.lock() // 获取锁
        try {
            // 保护的代码段
            println("Locked by coroutine 1")
            delay(1000)
        } finally {
            mutex.unlock() // 确保释放锁
        }
    }
    launch {
        mutex.lock() // 等待并获取锁
        try {
            // 保护的代码段
            println("Locked by coroutine 2")
        } finally {
            mutex.unlock() // 确保释放锁
        }
    }
}

import kotlinx.coroutines.*
import kotlinx.coroutines.sync.Mutex
val mutex = Mutex()
fun main() = runBlocking {
    launch {
        if (mutex.tryLock()) { // 尝试获取锁
            try {
                println("Lock acquired by coroutine 1")
                delay(1000)
            } finally {
                mutex.unlock()
            }
        } else {
            println("Coroutine 1: Lock not acquired")
        }
    }
    launch {
        if (mutex.tryLock()) { // 尝试获取锁
            try {
                println("Lock acquired by coroutine 2")
            } finally {
                mutex.unlock()
            }
        } else {
            println("Coroutine 2: Lock not acquired")
        }
    }
}