PackageDescription: OSXExternalProcessFix

OSX External Process Fix

Last published: March 16, 2011 by 'shaffer'

Defines 0 Classes
Extends 1 Classes

It appears as though the OSX VM doesn't always signal the process status change semaphore when children exit. This can be demonstated pretty easily but evaluating the following block:

100 timesRepeat:
[t := ExternalProcess new.
t cshOne: 'ls'.
t wait].

This will block in one of the waits. This package is a workaround for this problem. It creates a background process that periodically signals the status change semaphore.