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Explain the concept of Quasi Reentrant


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bharathyyy

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Joined: 13 Jun 2005
Posts: 6

PostPosted: Wed Jun 15, 2005 4:16 pm
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Can anyone, plz, explain the concept of QUASSI REENTRANT ?
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arunoday

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Joined: 17 May 2005
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Location: Bangalore

PostPosted: Wed Jun 15, 2005 4:55 pm
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Hi Bharath,

Re-entrancy property means the capability of a program to behave differently for different invocations under different conditions. icon_eek.gif Too theoritical !!! In easy terms and with CICS program examples - each CICS program is invoked by a unique transaction and the program again can start another program by issuing transaction -

EXEC CICS START TRANS('T123') END-EXEC.

Like this way a program can re-start itself also. Now, with this again-and-again re-entering you can insert different processing logics for different entry , like -

If the program is invoked for first time
Do Logic 1
If the program is invoked for first time
Do Logic 2
If the program is invoked for first time
Do Logic 3 ....

This property is Re-entrancy . In CICS terminology, this re-entrancy property is called Quasi-Reentrancy.


Thnaks
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