Legacy Document
Important: The information in this document is obsolete and should not be used for new development.
NSPort
Overview
NSPort is an abstract class that represents a communication channel to or from another NSPort, which typically resides in a different thread or task.
To receive incoming messages, NSPorts must be added to an NSRunLoop as input sources.
Tasks
Constructors
Validation
Setting the Delegate
Constructors
NSPort
Creates a new NSPort object capable of both sending and receiving messages.
public NSPort()
Creates a newly allocated NSPort object to use the Mach port machPort.
public NSPort(int machPort)
Discussion
Depending on the access rights for machPort, the new NSPort may only be able to send messages.
Instance Methods
delegate
Returns the receiver’s delegate.
public Object delegate()
See Also
invalidate
Marks the receiver as invalid.
public void invalidate()
See Also
isValid
Returns false if the receiver is known to be invalid, true otherwise (an NSPort only notes that it has become invalid when it tries to send or receive a message).
public boolean isValid()
Discussion
An NSPort becomes invalid when its underlying communication resource, which is operating system dependent, is closed or damaged.
See Also
setDelegate
public void setDelegate(Object anObject)
Discussion
Sets the receiver’s delegate to anObject.
See Also
© 1997, 2006 Apple Computer, Inc. All Rights Reserved. (Last updated: 2006-07-24)