RE: Program dumps taking a long time

Why not get a pointer into a user space? Then just have a single occurrence 
data structure and walk through the list. Using a user space would get you up 
to 239,000 file names and managed by the operating system and you can search 
the list with bsearch. This is exactly what I am doing in my trigger mediator. 
I can send you copy and you can just pull out the user space logic if you would 
like. 

-----Original Message-----
From: Dave Murvin [mailto:davem@xxxxxxxx]
Sent: Thursday, June 23, 2005 2:21 PM
To: rpg400-l@xxxxxxxxxxxx
Subject: Program dumps taking a long time


Hi,

I have some programs that use large arrays in which I allocate the memory 
for only the elements I need.  For example:

       * Selected files array
      D                 DS                  Based(SFPtr)
      D SelectedFiles                141    Dim(9999) Ascend
      D  SFFileNam                    10    Overlay(SelectedFiles:1 )
      D  SFFileLib                    10    Overlay(SelectedFiles:11)
      D  SFNamLib                     20    Overlay(SelectedFiles:1 )
      D  SFFileText                   50    Overlay(SelectedFiles:21)
      ...

Now if the program blows up during testing and I take the option to print a 
dump, it takes forever.  For some other programs with similar code, the 
dump ended because there was not enough memory for the dump program to 
process all the unused array elements!  The problem seems to be that the 
dump process does not care how memory much is actually allocated to the 
structure or array, but it looks only at the DIM(9999) field and prints a 
dump statement for all 9999 elements, which are mostly unused or 
not  addressable.   The reason I am using 9999 on the Dim statement is that 
I don't know how many elements I will need.  In the past, I tried 
specifying fewer elements on the DIM statement, but then I can't add any 
more elements to the array than are specified in the Dim statement.

Although I am running at V5R3, I am trying to compile back to V5R1.

Any suggestions on how to improve the situation?  I can always cancel the 
dump, but then I don't get the values of the variables.

Thanks

Dave Murvin
DRM Enterprises, Inc.