C///

\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// require 'thread' require 'set' require 'rake/promise' module Rake class ThreadPool # :nodoc: all # Creates a ThreadPool object. # The parameter is the size of the pool. def initialize(thread_count) @max_active_threads = [thread_count, 0].max @threads = Set.new @threads_mon = Monitor.new @queue = Queue.new @join_cond = @threads_mon.new_cond @history_start_time = nil @history = [] @history_mon = Monitor.new @total_threads_in_play = 0 end # Creates a future executed by the +ThreadPool+. # # The args are passed to the block when executing (similarly to # Thread#new) The return value is an object representing # a future which has been created and added to the queue in the # pool. Sending #value to the object will sleep the # current thread until the future is finished and will return the # result (or raise an exception thrown from the future) def future(*args, &block) promise = Promise.new(args, &block) promise.recorder = lambda { |*stats| stat(*stats) } @queue.enq promise stat :queued, :item_id => promise.object_id start_thread promise end # Waits until the queue of futures is empty and all threads have exited. def join @threads_mon.synchronize do begin stat :joining @join_cond.wait unless @threads.empty? stat :joined rescue Exception => e stat :joined $stderr.puts e $stderr.print "Queue contains #{@queue.size} items. " + "Thread pool contains #{@threads.count} threads\n" $stderr.print "Current Thread #{Thread.current} status = " + "#{Thread.current.status}\n" $stderr.puts e.backtrace.join("\n") @threads.each do |t| $stderr.print "Thread #{t} status = #{t.status}\n" # 1.8 doesn't support Thread#backtrace $stderr.puts t.backtrace.join("\n") if t.respond_to? :backtrace end raise e end end end # Enable the gathering of history events. def gather_history #:nodoc: @history_start_time = Time.now if @history_start_time.nil? end # Return a array of history events for the thread pool. # # History gathering must be enabled to be able to see the events # (see #gather_history). Best to call this when the job is # complete (i.e. after ThreadPool#join is called). def history # :nodoc: @history_mon.synchronize { @history.dup }. sort_by { |i| i[:time] }. each { |i| i[:time] -= @history_start_time } end # Return a hash of always collected statistics for the thread pool. def statistics # :nodoc: { :total_threads_in_play => @total_threads_in_play, :max_active_threads => @max_active_threads, } end private # processes one item on the queue. Returns true if there was an # item to process, false if there was no