Queryable Daemon

Sat Aug 1 17:14:59 EDT 2009

MRAB <python at mrabarnett.plus.com> wrote:
> Justin DeCell wrote:
>> Hi All,
>> 

...

>> The only other way I thought 
>> of would be to write to a file on disk every so often from the daemon 
>> and just read the from the query process but it seems like there should 
>> be a more elegant way to do this...
>> 
>> By the way I'm writing this for unix only so there's no need to worry 
>> about compatibility with other os'.
>> 
> Instead of a file descriptor, how about a socket? A certain port at
> "127.0.0.1"?

Or a Unix domain socket.

Or let the demon catch signal, say SIGUSR1 and dump its state to a file.
A bit easier programming that a socket, a bit less elegant.

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| Radovan Garabík http://kassiopeia.juls.savba.sk/~garabik/ |
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