Linked by Thom Holwerda on Sun 17th Sep 2006 16:57 UTC, submitted by martini
OS/2 and eComStation "OS/2 has many applications that had been created by companies, individual developers and hobbyists. Many of these applications still works under the newest version of eComStation and have demonstrated a good quality. The only issue is that they are turning into abandonware since developers had switched to other platforms, but there is a chance to extend their life with the 'Open Source Long Live Elixir'. Here at OS2World.com we will like to make a call to OS/2-eCS developers and ex-developers to open source their creations. We believe that the software can be expanded for the benefit of the community and allowing a learning experience from the code of these applications."
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RE[2]: Good idea
by simmoV on Mon 18th Sep 2006 00:56 UTC in reply to "RE: Good idea"
simmoV
Member since:
2005-07-08

"...The implementation is flawed as it is based upon a single input queue. The SIQ means, in practical terms, that a single crashing application can make any mouse or keyboard interaction with the OS impossible; in these situations, the OS seems to working and applications seem to be running but you can't interact with them. After such a crash, all you can do is reset the machine."

It is not a single input queue. If for any reason it's called SIQ, it is because the Presentation Manager's shell is a synchronous event. And it rarely would bring the machine down. An ALT-ESC or CTRL-ESC would have sufficed to bring up the window list and (if needed) close the offending program. Later versions would have a feature that would revive stuck windows without having to terminate them (Asynchronous Focus Change).

Reply Parent Score: 1

RE[3]: Good idea
by galvanash on Mon 18th Sep 2006 01:33 in reply to "RE[2]: Good idea"
galvanash Member since:
2006-01-25

It is not a single input queue.

Sorry, but you are completely wrong. I ran OS/2 for many years, from the original release up to Warp 3. All versions of OS/2 have a single input queue (even eCom Station does), and until FixPack 17 it was very easy to run into this issue. With some software you were lucky to get more than an hour out of it before it would lock up the queue (early versions of IBM Works was famous for this).

The infamous "fix" for this didnt remove the limitation, it just worked around it in a clever manner. But dont take my word for it...

http://www.os2ezine.com/v1n5/queue.html

Hell, you could have just googled for this, there are like over 600 references to +"OS/2" +"single input queue".

Reply Parent Score: 4