Class: OSHandle

• Inheritance
• Description
• Class protocol
  • Compatibility-VW
  • initialization
• Instance protocol
  • comparing
  • finalization
  • queries
  • testing

Inheritance:

   Object
   |
   +--ExternalAddress
      |
      +--OSHandle
         |
         +--OSFileHandle

Package:

stx:libbasic

Category:

Compatibility-VisualWorks

Version:

rev: 1.17 date: 2024/01/25 11:29:28

user: cg

file: OSHandle.st directory: libbasic

module: stx stc-classLibrary: libbasic

Description:

Ongoing work: 
    extract handle specific operations and rewrite Streams, Sockets etc.
    to pass all work to these handles.

copyright
COPYRIGHT (c) 1999 by eXept Software AG
             All Rights Reserved

This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice.   This software may not
be provided or otherwise made available to, or used by, any
other person.  No title to or ownership of the software is
hereby transferred.

Class protocol:

 currentOS

ST-80 compatibility.

Usage example(s):

OSHandle currentOS

 currentProcessID

ST-80 compatibility.

Usage example(s):

OSHandle currentProcessID

 initialize

(comment from inherited method)
called only once - initialize signals

Instance protocol:

 < anOSHandleOrNumber

 finalizationLobby

answer a Registry used for finalization.

 finalize

(comment from inherited method)
a previously registered external address was finalized.
Concrete subclasses should know what to do

** This method must be redefined in concrete classes (subclassResponsibility) **

 handleType

** This method must be redefined in concrete classes (subclassResponsibility) **

 isValid

(comment from inherited method)
true if I have an address

 isOsHandle

 isSocketHandle