FiveTech Software tech support forums

All, I put together a quick buffer class and I did some simple testing and it seems to be working. Give it a try. James /*Purpose  : Write buffer classAuthor   : James Bott, jbott@compuserve.comDate     : 9/3/2015 9:04:36 AMCompany  : IntellitechCopyright: Copyright © 2015 IntellitechLanguage : Five...

Hi Enrico, We need to clear understand if and where the problem is. IMHO the "where" is clear: buffering in a string built of small pieces in a intense computing program could lead in reallocation problems due to Harbour's memory management lack of garbage collection. It is a known problem...

James, Enrico, I think that you must have the problematic code in your hands, then try a possible solution. I'm not sure what you mean--that the problem was in my code? I dont' know, but I know that you should not make "premature optimization". We don't need a general tool for buffered wri...

James, So I am thinking that in order to use a buffer and prevent memory fragmentation I could pre-allocate a blank string of 400 line by 80 characters as my buffer. Then just keep replacing the spaces in the string with text until it is full, then write to disk. +1, access to the filesystems is alw...

Tim, My point is that maybe there is a way to gather a sufficient amount of data between each commit that will speed up the process. If you are talking about the ADORDD and the commit after each record, then I agree, and I am the one who pointed it out as an issue. But the ADO functions apparently d...

When I first started working with dBase in CP/M, the machine had little memory, used floppy disks, and drove a monochrome monitor. The programming skills I learned by working in the very small resource setting is a benefit today, even with our faster machines that have ample resources. James, Initia...

Enrico, I think that you must have the problematic code in your hands, then try a possible solution. I'm not sure what you mean--that the problem was in my code? Which example are you referring to. For one the code was simply APPEND FROM [filename]. The other was read line, write line. In both cases...

James, Enrico, Yes that is the one. It only had a cassette drive to store data. It took about a half hour just to load the program I wrote (in BASIC). Then another half hour to load the data. Then after it started processing it would hang for 10 minutes to an hour. Whew! It was still better than a p...

James,

I think that you must have the problematic code in your hands, then try a possible solution.

EMG

Enrico, Yes that is the one. It only had a cassette drive to store data. It took about a half hour just to load the program I wrote (in BASIC). Then another half hour to load the data. Then after it started processing it would hang for 10 minutes to an hour. Whew! It was still better than a pocket c...

Carlos, In my case, i changed the function to not use the buffer, but write directly to the resulting file, Just a few days ago I was processing a lot of large files with a program I wrote in FWH. It was reading and writing each line from and to disk. I was taking an incredibly long time with the di...

Tim,

great!

EMG

My first was a Toshiba T100 running CP/M ( with dBase II even ), pictured here: http://www.oldcomputers.net/toshiba-t100.html Not shown in this listing are the Dual floppy drive box and the monitor.

Was it this?

https://en.wikipedia.org/wiki/TRS-80

EMG

James,

James Bott wrote:I still remember on my first computer, a Radio Shack TRS-80,

EMG