Solved

Very large Tfilestreams

Posted on 2003-11-28
5
240 Views
Last Modified: 2010-04-05
I have one exe that gathers all files that I choose into one package. This package is attatched to another exe that has the function to extract the package from itself and to un-package the files into a folder.

The problem is when the package file gets a bit too large, on my PC it works fine but on an older machine with a bit less memory I get a disk read error and stuff.

Is there a easy way to read bit by bit so that I am able to unpack the exe on a older machine?


/Fixzy



0
Comment
Question by:Fixzy
5 Comments
 
LVL 3

Accepted Solution

by:
SteveWaite earned 125 total points
ID: 9840926
Be careful, when going from say what works on xp and not on win98, I have found that a bug in my source actually worked ok on xp but not on 98. But when i fix it the program works ok on both platforms. Something like your program  using streams should work the same on both, assuming a large enough swap file exists on the older. I find testing on win 95 (if poss) can even show up shortcomings in the code.

Regards
Steve
0
 
LVL 9

Assisted Solution

by:mocarts
mocarts earned 125 total points
ID: 9843131
hi, Fixzy :)
there is two options to work with large files - use BlockRead and work with small sized (tenth of Kb) buffer or use memory mapped files (work with file with simple pointer).

wbr,mo.
0
 

Author Comment

by:Fixzy
ID: 9843849
Hi.

Do u have a bit of code to share?

/Fixzy
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Introduction I have seen many questions in this Delphi topic area where queries in threads are needed or suggested. I know bumped into a similar need. This article will address some of the concepts when dealing with a multithreaded delphi database…
Introduction Raise your hands if you were as upset with FireMonkey as I was when I discovered that there was no TListview.  I use TListView in almost all of my applications I've written, and I was not going to compromise by resorting to TStringGrid…
Along with being a a promotional video for my three-day Annielytics Dashboard Seminor, this Micro Tutorial is an intro to Google Analytics API data.
Many functions in Excel can make decisions. The most simple of these is the IF function: it returns a value depending on whether a condition you describe is true or false. Once you get the hang of using the IF function, you will find it easier to us…

920 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now