|
To be more exact, new in Java isn't quite the same as alloc() in RPG
or malloc in C/C++, or similar operations in other languages.
I believe a (direct?) ByteBuffer is probably closer, and I believe
those (can be?) uninitialized.
CHarles
On Thu, Oct 28, 2010 at 10:42 AM, <dieter.bender@xxxxxxxxxxxx> wrote:
just to stay exact: in Java you don't need to do--
D*B
--------------------------------------------------
From: "Charles Wilt" <charles.wilt@xxxxxxxxx>
Sent: Thursday, October 28, 2010 4:20 PM
To: "RPG programming on the IBM i / System i" <rpg400-l@xxxxxxxxxxxx>
Subject: Re: Memory being reused by %alloc on second call to program.
Working as designed...--
In any language, you should always initialize newly allocated memory;
if you code depends on it.
Charles
On Thu, Oct 28, 2010 at 9:36 AM, Bryce Martin <BMartin@xxxxxxxxxxxx>
wrote:
I have written my first external stored procedure and it uses dynamic--
memory allocation to create a couple of 2D arrays. The problem that I'm
seeing is this...
ProgramA using CLI calls StoredProc. StoredProc %alloc/%realloc/%dealloc
and uses a regular static array for returning a result set.
ProgramA is two screens. First screen has fields to search by. If I
enter criteria and hit enter ProgramA then calls StoredProc. ProgramA
then processes the ResultSet and puts it into a subfile for viewing. If
I
F12 back to the first screen and change my search criteria to something
that shouldn't return results it still does but refined by whatever I
just
searched by. If I F3 out of ProgramA then all the memory used by the
StoredProc is released even if I don't do a RCLACTGRP of ProgramA's
activation group. If I search a second time after doing the full exit by
the criteria that should not return results then it works and returns no
results. (no results could also be a search that is too generic to have
good results, this is handled by the StoredProc).
In the StoredProc I am doing the following Destroy call, the
DestroyArray() procedure just take a pointer to an array memory address
and does a dealloc(n) pWholeArray;
pArrayElem = *null;
DestroyArray(pWholeArray);
pWholeArray = *null;
I nulled the pointers for good measure but that didn't do anything.
It looks like the second call is doing an %alloc and starting at the same
memory address as the previous call had done. So when I %alloc a block
the memory already contains the data from the previous call. How do I
handle this?
Thanks
Bryce Martin
Programmer/Analyst I
570-546-4777
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