Ruby daemon script only runs once
-
25-09-2019 - |
Question
I've written a ruby NFC reader script and daemonised it with the daemons gem. It all works great except the script only runs once...
Daemon.rb
require 'rubygems'
require 'daemons'
pwd = File.dirname(File.expand_path(__FILE__))
file = pwd + '/touchatag.rb'
Daemons.run_proc(
'touchatag_project_daemon', # name of daemon
:dir_mode => :normal,
:dir => File.join(pwd, 'tmp/pids'), # directory where pid file will be stored
:backtrace => true,
:monitor => true,
:log_output => true
) do
exec "ruby #{file}"
end
touchatag.rb
quire 'rubygems'
require 'nfc'
require 'httparty'
class TagAssociator
include HTTParty
base_uri 'localhost:3000'
end
NFC.instance.find do |tag|
puts "Processing tag..."
TagAssociator.post('/answers/answer', :query => {:uid => tag.uid})
end
This works great and i'm receiving the tag.uid in my app. But when i scan another RFID tag the script wont run again...
Does anyone know how to adjust the script that it runs "forever" and stops when the daemon is stopped?
Thanks
UPDATE
i updated my daemon.rb script:
require 'rubygems'
require 'daemons'
options = {
:app_name => "touchatag_project_daemon",
:ARGV => ['start', '-f', '--', 'param_for_myscript'],
:dir_mode => :script,
:dir => 'tmp/pids',
:multiple => true,
:ontop => true,
# :mode => :exec,
:backtrace => true,
:monitor => true
}
Daemons.run(File.join(File.dirname(__FILE__), '/touchatag.rb'), options)
But it just runs once... i don't get it any other suggestions?
Solution
You almost certainly want to be using Daemon.run
. run_proc
would be useful if you wanted to move the code from touchtag.rb
into Daemon.rb
.
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