Class: RSched::Engine

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

Defined Under Namespace

Classes: Sched, TimerThread

Instance Method Summary collapse

Constructor Details

#initialize(lock, conf) ⇒ Engine

Returns a new instance of Engine.



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# File 'lib/rsched/engine.rb', line 48

def initialize(lock, conf)
  @lock = lock
  @resume = conf[:resume]
  @delay = conf[:delay]
  @interval = conf[:interval]
  @delete = conf[:delete]
  @extend_timeout = conf[:extend_timeout]
  @kill_timeout = conf[:kill_timeout]
  @kill_retry = conf[:kill_retry]
  @sched_start = conf[:from] || 0
  @release_on_fail = conf[:release_on_fail]
  @finished = false
  @ss = {}

  @extender = TimerThread.new(@lock, @extend_timeout, @kill_timeout, @kill_retry)

  @mutex = Mutex.new
  @cond = ConditionVariable.new
end

Instance Method Details

#init_proc(run_proc, kill_proc) ⇒ Object 



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# File 'lib/rsched/engine.rb', line 74

def init_proc(run_proc, kill_proc)
  @run_proc = run_proc
  @extender.init_proc(kill_proc)
end

#run ⇒ Object 



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# File 'lib/rsched/engine.rb', line 79

def run
  @extender.start
  until @finished
    one = false

    sched_time = Time.now.to_i - @delay
    @ss.each_pair {|ident,s|

      s.sched(sched_time)
      s.queue.delete_if {|time|
        next if @finished

        token = @lock.acquire(ident, time)
        case token
        when nil
          # already finished
          true

        when false
          # not finished but already locked
          false

        else
          one = true
          process(token, ident, time, s.action)
        end
      }

      break if @finished
    }

    return if @finished

    unless one
      cond_wait(@interval)
    end

  end
end

#set_sched(ident, action, cron) ⇒ Object

=> (ident,action)



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# File 'lib/rsched/engine.rb', line 69

def set_sched(ident, action, cron)
  now = Time.now.to_i
  @ss[ident] = Sched.new(cron, action, @sched_start, now-@delay-@resume, now-@delay)
end

#shutdown ⇒ Object 



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# File 'lib/rsched/engine.rb', line 119

def shutdown
  @finished = true
  @extender.shutdown
  @mutex.synchronize {
    @cond.broadcast
  }
end