Class: Chukan::ZombieKiller

Inherits:
Object
  • Object
show all
Defined in:
lib/chukan.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(pid) ⇒ ZombieKiller 



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# File 'lib/chukan.rb', line 296

def initialize(pid)
  @pid = pid
end

Instance Attribute Details

#pid ⇒ Object (readonly)

Returns the value of attribute pid.



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# File 'lib/chukan.rb', line 302

def pid
  @pid
end

Class Method Details

.define_finalizer(obj, pid) ⇒ Object 



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# File 'lib/chukan.rb', line 304

def self.define_finalizer(obj, pid)
  killer = self.new(pid)
  ObjectSpace.define_finalizer(obj, self.finalizer(killer))
  killer
end

.finalizer(killer) ⇒ Object 



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# File 'lib/chukan.rb', line 310

def self.finalizer(killer)
  proc {
    if pid = killer.pid
      [:SIGTERM, :SIGKILL].each {|sig|
        Process.kill(sig, pid)
        break if 10.times {
          begin
            if Process.waitpid(pid, Process::WNOHANG)
              break true
            end
            sleep 0.1
          rescue
            break true
          end
          nil
        }
      }
    end
  }
end

Instance Method Details

#killed ⇒ Object 



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# File 'lib/chukan.rb', line 299

def killed
  @pid = nil
end