Class: OSProcessStatus (private in UnixOperatingSystem

• Inheritance
• Description
• Related information
• Class protocol
  • instance creation
• Instance protocol
  • accessing
  • initialization
  • printing & storing
  • private-OS interface
  • queries

Inheritance:

   Object
   |
   +--UnixOperatingSystem::OSProcessStatus

Package:

stx:libbasic

Category:

OS-Unix

Owner:

UnixOperatingSystem

Author:

Stefan Vogel

Description:

This is an auxillary class, that holds information about status changes of
operating system processes (these are no smalltalk processes!).

[Instance variables:]

    pid     <Integer>       OS-Process identifier

    status  <Symbol>        either #exit #signal #stop #continue

    code    <Integer>       either exitcode or signalnumber

    core    <Boolean>       true if core has been dumped

Related information:

    OperatingSystem

Class protocol:

 pid: pid status: status code: code core: core

private interface for UnixOperatingSystem

 processCreationFailure

private interface for UnixOperatingSystem

Instance protocol:

 code

return the exitcode / signalNumber

 core

return true if core has been dumped, false otherwise

 pid

return the pid

 status

return status as a Symbol;
one of #exit #signal #stop #continue

 pid: newPid status: newStatus code: newCode core: newCore

 printOn: aStream

(comment from inherited method)
append a user printed representation of the receiver to aStream.
The format is suitable for a human - not meant to be read back.

The default here is to output the receiver's class name.
BUT: this method is heavily redefined for objects which
can print prettier.

 code: exitCode

set the exitCode

 core: something

set core

 pid: something

set pid

 status: something

set status

 couldNotExecute

return true when a command could not be executed

 isError

true if process terminated with error

 stillAlive

true if process is still alive

 success

true if process terminated with success