I think that this may be the problem because the line that
the application crashes on is never consistant.
Is there a way to increase the size of the stack?
Thank You.
-----Original Message-----
From: jacky Cheung [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, March 21, 2001 4:33 PM
To: Palm Developer Forum
Subject: RE: How do you allocate memory for a structure.
Also, make sure you are not overflowing the stack. You have a pretty large
array (strint_buf) and changing something 'totally unrelated may cause you
to run out of stack space?
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of DIAMOND
JEFF
Sent: Thursday, March 22, 2001 9:26 AM
To: Palm Developer Forum
Subject: Re: How do you allocate memory for a structure.
Mechanically / syntactically you are using the correct functions for memory
management. (So in a pure PalmOS sense, we are done.)
However, your code below has so many unknowns that I couldn't just look at
it and tell you an error.
If you can pinpoint the crash to a specific line of code, it would help.
Otherwise, it's basic memory management - have you written to memory outsied
of what's allocated?
Is the data you're accessing write protected and would need DmWrite?
One thing that seems like a bug off the top of my head is that you are
allocating enough space for ONE CRawHist in rawhistData, but
you later refer to rawhistData[i] as if you had allocated an array. So if i
!= 0 that will crash.
In general, check all the values of your input variables and make sure
you're accessing the memory you think you are. Also view the
actual memory and arrays in the debugger to help.
Good luck!
- Jeff
"Nesselhauf, John" wrote:
> Hi,
>
> I am having a problem with memory, I think. I keep getting a fatal error
> when I run
> this code:
>
> CRawHist *rawhistData = MemPtrNew(sizeof(CRawHist));
> datain2* phistrec;
>
> CharPtr chrtnbuf1;
> int ndatasize;
> char strint_buf[400];
> int nmemcount;
>
> ndatasize = 288;
> phistrec->count1 = 18;
> nmemcount = 16;
>
> chrtnbuf1 = ReceiveSerial( ndatasize/2, 60 );
>
> // Move information into a variable.
> MemSet(&strint_buf, sizeof(strint_buf), 0x00);
> MemMove(&strint_buf, chrtnbuf1, ndatasize/2);
>
> // populate an array with the same information.
> for( i=0; i<=(phistrec->count1/2)-1; i++ )
> {
> MemSet(&rawhistData[i].vtm1, 16, 0x00 );
>
> MemMove(&rawhistData[i].vtm1, &strint_buf[i*nmemcount], 16);
>
> if( rawhistData[i].vtm1 <= 10 )
> {
> break;
> }
> nrecord_no++;
> }
>
> MemPtrFree( rawhistData );
>
> Am I doing this correctly? This code seemed to work fine for a while. I
> fixed something totally
> unrelated then recompiled and now it fails in this code.
>
> Thank you for your help.
>
> John
>
> --
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