Quick `ktor tcp` question. For the below code on ...

# ktor

[Kwabena Berko]

Quick ktor tcp question.
For the below code on a jvm environment, when the server abruptly closes, we immediately get a null for receiveChannel.readUTF8Line() , but on iOS we never get a null and readUTF8Line() continues to suspend. Is there a workaround to this?
Thanks in advance.

val selectorManager = SelectorManager(Dispatchers.IO)
        val socket = aSocket(selectorManager).tcp().connect("127.0.0.1", 9002)

        val receiveChannel = socket.openReadChannel()
        val sendChannel = socket.openWriteChannel(autoFlush = true)

        launch(Dispatchers.IO) {
            while (true) {
                val greeting = receiveChannel.readUTF8Line()
                if (greeting != null) {
                    println(greeting)
                } else {
                    println("Server closed a connection")
                    socket.close()
                    selectorManager.close()
                    exitProcess(0)
                }
            }
        }

[Aleksei Tirman [JB]]

Can you please file an issue with the listed steps of reproduction?

[Kwabena Berko]

Sure, will do that

[Kwabena Berko]

I just did:
https://youtrack.jetbrains.com/issue/KTOR-6404/Ktor-TCP-readUTF8Line-behavior-discrepancy-between-JVM-and-iOS

[Kwabena Berko]

Hi @Aleksei Tirman [JB]
Is there any update on this issue?

[Aleksei Tirman [JB]]

Unfortunately, there are no updates at this point.

[Kwabena Berko]

Do you have an ETA on this?
I'm currently implementing a TCP Client and Server in the Shared code. Everything works perfectly except just that bit 😄

[Aleksei Tirman [JB]]

I don't have one. Please note that writing comments on the issue would be better so everyone involved could see them.