Class: TkRTTimer

Class | TkRTTimer
In: | tk/lib/tk/timer.rb
Parent: | TkTimer

### Methods

cancel cb_call continue new set_interval set_next_callback start stop

### Constants

DEFAULT_OFFSET_LIST_SIZE | = | 5

### Public Class methods

new(*args, &b)

[Source]

    # File tk/lib/tk/timer.rb, line 511
      def initialize(*args, &b)
        super(*args, &b)

        @offset_list = Array.new(DEFAULT_OFFSET_LIST_SIZE){ [0, 0] }
        @offset_s = 0
        @offset_u = 0
        @est_time = nil
      end

### Public Instance methods

cancel()

[Source]

    # File tk/lib/tk/timer.rb, line 527
      def cancel
        super()
        @est_time = nil
        @cb_start_time = Time.now
        self
      end

cb_call()

[Source]

    # File tk/lib/tk/timer.rb, line 614
      def cb_call
        if @est_time
          @offset_list.shift

          @cb_start_time = Time.now

          if @current_sleep == 0
            @offset_list.push([
                                @offset_s - @cb_start_time.to_i,
                                @offset_u - @cb_start_time.usec
                              ])
          else
            @offset_list.push([
                                @offset_s + (@est_time.to_i - @cb_start_time.to_i),
                                @offset_u + (@est_time.usec - @cb_start_time.usec)
                              ])
          end
        end

        @cb_cmd.call
      end

continue(wait=nil)

[Source]

    # File tk/lib/tk/timer.rb, line 535
      def continue(wait=nil)
        fail RuntimeError, "is already running" if @running
        @cb_start_time = Time.now
        super(wait)
      end

set_interval(interval)

[Source]

    # File tk/lib/tk/timer.rb, line 541
      def set_interval(interval)
        super(interval)
        @est_time = nil
      end

set_next_callback(args)

[Source]

    # File tk/lib/tk/timer.rb, line 562
      def set_next_callback(args)
        if @running == false || @proc_max == 0 || @do_loop == 0
          Tk_CBTBL.delete(@id) ;# for GC
          @running = false
          @wait_var.value = 0
          return
        end
        if @current_pos >= @proc_max
          if @do_loop < 0 || (@do_loop -= 1) > 0
            @current_pos = 0
          else
            Tk_CBTBL.delete(@id) ;# for GC
            @running = false
            @wait_var.value = 0
            return
          end
        end

        @current_args = args

        cmd, *cmd_args = @loop_proc[@current_pos]
        @current_pos += 1
        @current_proc = cmd

        @offset_s, @offset_u = _offset_ave

        if TkComm._callback_entry?(@sleep_time)
          sleep = @sleep_time.call(self)
        else
          sleep = @sleep_time
        end

        if @est_time
          @est_time = Time.at(@est_time.to_i, @est_time.usec + sleep*1000)
        else
          @est_time = Time.at(@cb_start_time.to_i,
                              @cb_start_time.usec + sleep*1000)
        end

        now = Time.now
        real_sleep = ((@est_time.to_i - now.to_i + @offset_s)*1000.0 +
                      (@est_time.usec - now.usec + @offset_u)/1000.0).round
        if real_sleep <= 0
          real_sleep = 0
          @offset_s = now.to_i
          @offset_u = now.usec
        end
        @current_sleep = real_sleep

        set_callback(real_sleep, cmd_args)
      end

start(*args, &b)

[Source]

    # File tk/lib/tk/timer.rb, line 520
      def start(*args, &b)
        return nil if @running
        @est_time = nil
        @cb_start_time = Time.now
        super(*args, &b)
      end

stop()

Alias for cancel

[Validate]