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Last updated at 9:48 pm UTC on 26 December 2007
AioPlugin V2.2.1, December 26, 2007
Contributed by Dave Lewis

Download AioPluginV2-2-1.sar

AioPlugin provides support for asynchronous IO event notification. When an external IO event occurs, the event registration causes a Smalltalk semaphore to be signaled. A process can wait on this semaphore, thereby acting as an event handler for the external event. Currently this works with the Unix VM.

UnixAioPlugin implements the primitives that interact with the aio mechanism in the Unix VM. Other platform-specific subclasses could be written to provide a compatible aio mechanism for other platforms.

Changes in AIO 2.2.1 since 2.2:

Development versions are maintained at http://www.squeaksource.com/AioPlugin/

Previous versions of AIO plugin:

AioPlugin V2.2 AioPluginV2-2.sar (December 20, 2007)

AioPlugin V2.1.2 AioPluginV2-1-2.sar (April 2007)

Changes in AIO 2.1.2 since 2.0:

Version 2.1.2:

Version 2.1.1:

Version 2.1:

AioPlugin V2.0 AioPluginV2-0.sar (Sept 2005)

AioPlugin V1.1 AioPluginV1-1.sar (September 2003)

AioEventHandler provides image side support for aio event notification. An AioEventHandler is an object that waits for an external IO event to occur, then sends #changed to itself. Any object that is interested in the external event can register itself as a dependent of the AioEventHandler, and take appropriate action whenever the external event occurs.

AioEventHanderExample demonstrate asynchronous read handers for file streams, OS pipes, standard input, and sockets. See class category 'examples'. Some examples require OSProcess.