Re: CRONOLOG: Not cutting in middle of line

[Andrew Ford <A.Ford@xxxxxxxxxxxxxxxx>]

Luciano L.Mannucci wrote:

> On Tuesday, Sep 2, 2003, at 15:51 Europe/Rome, Wim Godden wrote:
>
> > Is there some way to stop cronolog from cutting in the middle of a line
> > ? It now splits a logfile in the middle of a line, instead of at the end
> > of a line.
>
> I've noticed that too.
> I've tried to rewrite the io part of cronolog, switching from raw
> (open, close, read, write) to line buffered (fopen, fclose, fread,
> fwrite, fflush), though I'm not sure it is a good idea safety wise,
> and - of course - I'm still testing it.
>
> Regards,
>
> luciano mannucci.

Cronolog merely acts as a filter, reading whatever is available and 
writing to the current log file.  It seems that someone in Canada is 
even using it to split an MP3 stream of radio broadcast, so one doesn't 
necessarily want it to start trying to parse the stream unless 
explicitly told to do so.  However I am coming to the conclusion that it 
would be a good idea to have options to tell cronolog to interpret the 
data in various ways.

I wouldn't necessarily switch to buffered IO, but what could be done is 
to check the end of the buffer if the timer has gone off.  If the last 
character (or two characters) is not the end of line marker then do a 
non-blocking read on the input to see if more data is available, and at 
least copy the remainder of the split line to the old log file before 
switching to the new one.

I have a trade fair on next week where my wife and I will be launching a 
new business, but I will try and get a new version of cronolog out after 
that,  I did in fact have a tidied up version of cronolog just about 
ready at the start of the year, but then I lost my hard disk, and it 
took me a month just to catch up with my work for a client.  A lot of my 
spare time this year has been taken up with catching up with things that 
were lost in that disk crash or the ensuing panic.

Regards
Andrew