Re: Buffered reading of stream files

Scott Klement wrote:

Perhaps 2 years ago, I wrote some routines intended to solve the same sort of problem when working with sockets. (Where fopen, fread, fgets, et al isn't available.)

I didn't mention this before because you said you already had your own buffering routines -- so I figured you wouldn't care much about my buffering routines :)

But the more I think of it, the more it makes sense to compare notes. Perhaps I could send you what I've done (off-list) and you could run your benchmarks over my routines for comparison? Of course, my tools are aimed at sockets rather than IFS, but small modifications should make IFS possible...

Sure, I'd be happy to compare. I think I might be able to improve my buffering code based on some thoughts I've come up with while trying out the _C_IFS_f* family. I'm sure your code will give me some ideas too.

It doesn't much help in your sockets situation, but I can get down to 1.1 seconds (a 1.2s improvement over my roll-my-own buffering) using fgets(). I've needed to add two assumptions, one record per line and known maximum length from the start of a line to the end of a record.

All in all, I'd say it's probably worth having functions in the toolbox for both types of stream.