Class: DaemonSpawnBase

Inherits:
DaemonSpawn::Base
  • Object
show all
Defined in:
lib/daemon_spawn_base.rb

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ DaemonSpawnBase

Returns a new instance of DaemonSpawnBase.



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# File 'lib/daemon_spawn_base.rb', line 5

def initialize(args)
  GC.copy_on_write_friendly = true if GC.respond_to?(:copy_on_write_friendly=)
  @args = args
  @procs = @args[:procs]
  @restart = true        

  super
end

Instance Method Details

#start(_) ⇒ Object 



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# File 'lib/daemon_spawn_base.rb', line 14

def start(_)
  raise "empty @procs" if !@procs || @procs.empty?

  # HUP is restart all childs
  trap("HUP") do
    stop_all
  end
  
  @args[:before_fork].call if @args[:before_fork]

  start_all

  while @restart
    pid = nil
    
    begin  
      pid = Process.wait
    rescue Errno::ECHILD
    end
    
    process = @procs.detect{|p| p.pid == pid }
    puts "#{process.name} had just died!"

    process.start if @restart
  end
  
rescue
  stop_all
end

#stop ⇒ Object 



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# File 'lib/daemon_spawn_base.rb', line 44

def stop
  @restart = false
  stop_all
end