FILEREAD as a buffer

[Bolt]

I'd like to treat a file as a buffer, by writing to it (when my FIFO buffer gets full) and then reading back out of it when ready to do so.  I have figured the FILEWRITE portion out, and can do a FILEREAD of the first row of data ($0D$0A), but am at a loss on how to proceed from there, either drop that row, or don't read it next time around.  I think FILETRUNC works in reverse of what I need.

Am I going about this the right way or need to look at something else?

[franji1]

Is a TEXT LINE in your file is a SINGLE RECORD from your FIFO?
OR
Is it one huge text line with ALL the FIFO records, followed by a single CR/LF?

[Bolt]

I was envisioning it as each buffer line followed by a carriage return line feed

[franji1]

Q1. When you say "buffer line" you mean "FIFO record".

Q2. Is the FIFO strings or is it a UDT or a simple numeric type.  The first doesn't need any parsing, the 2nd and 3rd need some kind of parsing for each text line to convert it from text to numeric

[ATU]

I did something similar, not on BRX, but the commands were almost the same. I needed to buffer a bunch of strings.   Not sure how fast you need to access the data, but rather than trying to keep track of position in the file, I used separate numbered files for each entry It was much easier.  It is slower, but you do have the advantage of using the RAM file.

[Bolt]

Sorry for being vague.

Yes, each line of the text file would be equivalent to a record in a FIFO Buffer.

Each FIFO record is a string.

I'm basically wanting to create an overflow area for a buffer consisting of SL strings.  The buffer posts to a server.  Due to memory limitations, I can't make the buffer large enough to survive potential network failures.