[Tutor] reading output from a c executable.

[Lie Ryan]

On Fri, 12 Dec 2008 03:13:16 -0800, Ravi Kondamuru wrote:

> Denis, These are 32bit, 64bit counters (essentially numbers). Bob, There
> are well over 10K counters in the log file that are updated every 5
> secs. If a counter1's graph was requested, log will have to be parsed
> once to get the data points. If a user asked for a counter2, now it
> needs to be retrieved from the log file. Which essentially means having
> to go through the logfile again. This is because i want to try to avoid
> using a database to store values after parsing the file. thanks,
> Ravi.

Instead of using a file, why not use pipes? Using pipes is surely much 
faster than reading from a file, and using pipes allow you to send log 
entries in "messages" which means you don't need to reparse the whole 
logfile on every update, just the parts that have changed.