Multiple Thread Database Access

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1 total messages Started by Michael Donaldson Wed, 22 Jul 1992 07:14

#402

Author: Michael Donaldson
Date: Wed, 22 Jul 1992 07:14

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I am an honours student at Monash University currently looking at ways
to enable  access to OS/2 Database Manager from multiple threads.  I
am looking for anyone who has successfully achieved this.

I would appeciate any information on the topic generally.

The problem with OS/2 DM is that it locks database regions on process id.
(PID) and not thread id. (TID) as well.  As you can imagine, concurrent
access of the database from multiple threads with the same PID will/can
corrupt the database.

Typically EnterDosCritSec is a method to solve the problem, but this does
not allow multi-tasking to occur.

What would be fantastic is any information or source code that wil access
the database from multiple threads.

If you need any more information regarding the request, feel free to contact
me at my E-mail address (below).

Thanks in advance,

Michael Donaldson.
mdonalds@monu6.cc.monash.edu.au

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