Server

open external class Server : EventEmitter(source)

This class is used to create a TCP or IPC server.

Since

v0.1.90

Inheritors

Constructors

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constructor(connectionListener: (socket: Socket) -> Unit = definedExternally)
constructor(options: ServerOpts = definedExternally, connectionListener: (socket: Socket) -> Unit = definedExternally)

Properties

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Indicates whether or not the server is listening for connections.

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Set this property to reject connections when the server's connection count gets high.

Functions

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fun addListener(type: EventType, listener: EventListener)

Alias for emitter.on(eventName, listener).

open fun addListener(event: String, listener: Function<Unit>)

events.EventEmitter

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fun address(): Any?

Returns the bound address, the address family name, and port of the server as reported by the operating system if listening on an IP socket (useful to find which port was assigned when getting an OS-assigned address):{ port: 12346, family: 'IPv4', address: '127.0.0.1' }.

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fun close(callback: (JsError?) -> Unit = definedExternally)

Stops the server from accepting new connections and keeps existing connections. This function is asynchronous, the server is finally closed when all connections are ended and the server emits a 'close' event. The optional callback will be called once the 'close' event occurs. Unlike that event, it will be called with an Error as its only argument if the server was not open when it was closed.

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fun emit(type: EventType, vararg args: Any?): Boolean

Synchronously calls each of the listeners registered for the event named eventName, in the order they were registered, passing the supplied arguments to each.

open fun emit(event: Symbol, vararg args: Any?): Boolean
open fun emit(event: String, vararg args: Any?): Boolean
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Returns an array listing the events for which the emitter has registered listeners. The values in the array are strings or Symbols.

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fun getConnections(cb: (JsError?, count: Double) -> Unit)

Asynchronously get the number of concurrent connections on the server. Works when sockets were sent to forks.

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Returns the current max listener value for the EventEmitter which is either set by emitter.setMaxListeners(n) or defaults to {@link defaultMaxListeners}.

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fun listen(handle: Any?, listeningListener: () -> Unit = definedExternally)
fun listen(port: Number = definedExternally, listeningListener: () -> Unit = definedExternally)
fun listen(path: String, listeningListener: () -> Unit = definedExternally)
fun listen(options: ListenOptions, listeningListener: () -> Unit = definedExternally)
fun listen(handle: Any?, backlog: Number = definedExternally, listeningListener: () -> Unit = definedExternally)
fun listen(port: Number = definedExternally, backlog: Number = definedExternally, listeningListener: () -> Unit = definedExternally)
fun listen(port: Number = definedExternally, hostname: String = definedExternally, listeningListener: () -> Unit = definedExternally)
fun listen(path: String, backlog: Number = definedExternally, listeningListener: () -> Unit = definedExternally)

fun listen(port: Number = definedExternally, hostname: String = definedExternally, backlog: Number = definedExternally, listeningListener: () -> Unit = definedExternally)

Start a server listening for connections. A net.Server can be a TCP or an IPC server depending on what it listens to.

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fun listenerCount(type: EventType, listener: EventListener = definedExternally): Double

Returns the number of listeners listening for the event named eventName. If listener is provided, it will return how many times the listener is found in the list of the listeners of the event.

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Returns a copy of the array of listeners for the event named eventName.

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fun off(type: EventType, listener: EventListener)

Alias for emitter.removeListener().

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fun on(type: EventType, listener: EventListener)

Adds the listener function to the end of the listeners array for the event named eventName. No checks are made to see if the listener has already been added. Multiple calls passing the same combination of eventName and listener will result in the listener being added, and called, multiple times.

open fun on(event: String, listener: Function<Unit>)
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fun once(type: EventType, listener: EventListener)

Adds a one-time listener function for the event named eventName. The next time eventName is triggered, this listener is removed and then invoked.

open fun once(event: String, listener: Function<Unit>)
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Adds the listener function to the beginning of the listeners array for the event named eventName. No checks are made to see if the listener has already been added. Multiple calls passing the same combination of eventName and listener will result in the listener being added, and called, multiple times.

open fun prependListener(event: String, listener: Function<Unit>)
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Adds a one-timelistener function for the event named eventName to the beginning of the listeners array. The next time eventName is triggered, this listener is removed, and then invoked.

open fun prependOnceListener(event: String, listener: Function<Unit>)
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Returns a copy of the array of listeners for the event named eventName, including any wrappers (such as those created by .once()).

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fun ref()

Opposite of unref(), calling ref() on a previously unrefed server will not let the program exit if it's the only server left (the default behavior). If the server is refed calling ref() again will have no effect.

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fun removeAllListeners(type: EventType = definedExternally)

Removes all listeners, or those of the specified eventName.

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fun removeListener(type: EventType, listener: EventListener)

Removes the specified listener from the listener array for the event named eventName.

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By default EventEmitters will print a warning if more than 10 listeners are added for a particular event. This is a useful default that helps finding memory leaks. The emitter.setMaxListeners() method allows the limit to be modified for this specific EventEmitter instance. The value can be set to Infinity (or 0) to indicate an unlimited number of listeners.

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fun unref()

Calling unref() on a server will allow the program to exit if this is the only active server in the event system. If the server is already unrefed callingunref() again will have no effect.