Copyright (C) 2004-2018 Jürgen "eTM" Mangler [email protected]
Daemonite is freely distributable according to the terms of the GNU Lesser General Public License 3.0 (see the file 'COPYING').
This code is distributed without any warranty. See the file 'COPYING' for details.
Deamonite is just syntactic sugar around Process.daemon and argparse, which are part of ruby. And it gives you a simple loop. And it only works on *nix, because it runs 'ps ax' (that rhymes). I know, thats clumsy and I'm a lazy git. Please contribute a better solution if you have to.
After I reused similar code in about 20 projects I had make it into a gem. Sorry. Probably much better code out there does the same, but I am too lazy to search for it. Sorry.
Its fairly simple for now:
Daemonite.new do |opts|
opts['bla']
run do |opts|
p opts
sleep 1
end
end.loop!Everything inside the #new block is executed once. Everything inside the #run block is executed periodically. So make sure to include sleep to not bog down your CPU. Or not - i.e. listen to network connections. #loop! finally invokes the contents of #run continuously.
In order to override or provide your own options:
Daemonite.new(opts)Also be aware that a json configuration file
Give PID file + daemon start, stop, restart, info functionality to sinatra. Stack overflow overflows with questions about it :-)
require 'sinatra/base'
require 'daemonite'
Daemonite.new do |opts|
on startup do
opts[:sin] = Sinatra.new do
set :port, 9327
Encoding.default_external = "UTF-8"
get '/' do
'Hello world!'
end
end
end
run do
opts[:sin].run!
end
end.go!daemon = Daemonite.new(opts)
daemon.run do |opts|
p opts
sleep 1
end
daemon.loop!- An example how to integrate with EventMachine (replace the #loop!).