RawReceivePort class abstract interface

A low-level asynchronous message receiver.

A RawReceivePort is low level feature, and is not Zone aware. The handler will always be invoked in the Zone.root zone.

The port cannot be paused. The data-handler must be set before the first message is received, otherwise the message is lost.

Messages can be sent to this port using sendPort.


RawReceivePort([Function? handler, String debugName = ''])
Opens a long-lived port for receiving messages.


handler Function?
Sets the handler that is invoked for every incoming message.
no getter
hashCode int
The hash code for this object.
no setterinherited
keepIsolateAlive bool
Whether this RawReceivePort keeps its Isolate alive.
getter/setter pair
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
sendPort SendPort
Returns a SendPort that sends messages to this raw receive port.
no setter


close() → void
Closes the port.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
toString() String
A string representation of this object.


operator ==(Object other) bool
The equality operator.