shogi_server/league/floodgate_thread.rb

   1 require 'shogi_server'
   2 require 'shogi_server/league/floodgate'
   3
   4 module ShogiServer
   5
   6   class SetupFloodgate
   7     # Constructor.
   8     # @param game_names an array of game name strings
   9     #
  10     def initialize(game_names)
  11       @game_names = game_names
  12       @thread = nil
  13     end
  14
  15     # Return the most recent Floodgate instance
  16     #
  17     def next_league(leagues)
  18       floodgate = leagues.min {|a,b| a.next_time <=> b.next_time}
  19       return floodgate
  20     end
  21
  22     def floodgate_reload_log(leagues)
  23       floodgate = next_league(leagues)
  24       diff = floodgate.next_time - Time.now
  25       log_message("Floodgate reloaded. The next match will start at %s in %d seconds" %
  26                   [floodgate.next_time, diff])
  27     end
  28
  29     def mk_leagues
  30       leagues = @game_names.collect do |game_name|
  31         ShogiServer::League::Floodgate.new($league,
  32                                            {:game_name => game_name})
  33       end
  34       leagues.delete_if do |floodgate|
  35         ret = false
  36         unless floodgate.next_time
  37           log_error("Unsupported game name: %s" % floodgate.game_name)
  38           ret = true
  39         end
  40         ret
  41       end
  42       if leagues.empty?
  43         log_error("No valid Floodgate game names found")
  44         return [] # will exit the thread
  45       end
  46       floodgate_reload_log(leagues)
  47       return leagues
  48     end
  49
  50     def wait_next_floodgate(floodgate)
  51       diff = floodgate.next_time - Time.now
  52       if diff > 0
  53         sleep(diff/2)
  54         return true
  55       end
  56       return false
  57     end
  58
  59     def reload_shogi_server
  60       $mutex.synchronize do
  61         log_message("Reloading source...")
  62         ShogiServer.reload
  63       end
  64     end
  65
  66     def start_games(floodgate)
  67       log_message("Starting Floodgate games...: %s" % [floodgate.game_name])
  68       $league.reload
  69       floodgate.match_game
  70     end
  71
  72     # Regenerate floodgate instances from next_array for the next matches.
  73     # @param next_array array of [game_name, next_time]
  74     #
  75     def regenerate_leagues(next_array)
  76       leagues = next_array.collect do |game_name, next_time|
  77         floodgate = ShogiServer::League::Floodgate.new($league,
  78                                                        {:game_name => game_name,
  79                                                         :next_time => next_time})
  80       end
  81       floodgate_reload_log(leagues)
  82       return leagues
  83     end
  84
  85     def start
  86       return nil if @game_names.nil? || @game_names.empty?
  87
  88       log_message("Set up floodgate games: %s" % [@game_names.join(",")])
  89       @thread = Thread.start(@game_names) do |game_names|
  90         Thread.pass
  91         leagues = mk_leagues
  92         if leagues.nil? || leagues.empty?
  93           return # exit from this thread
  94         end
  95
  96         while (true)
  97           begin
  98             floodgate = next_league(leagues)
  99             next if wait_next_floodgate(floodgate)
 100
 101             next_array = leagues.collect do |floodgate|
 102               if (floodgate.next_time - Time.now) > 0
 103                 [floodgate.game_name, floodgate.next_time]
 104               else
 105                 start_games(floodgate)
 106                 floodgate.charge # updates next_time
 107                 [floodgate.game_name, floodgate.next_time]
 108               end
 109             end
 110
 111             reload_shogi_server
 112
 113             # Regenerate floodgate instances after ShogiServer.realod
 114             leagues = regenerate_leagues(next_array)
 115           rescue Exception => ex
 116             # ignore errors
 117             log_error("[in Floodgate's thread] #{ex} #{ex.backtrace}")
 118           end
 119         end # infinite loop
 120       end # Thread
 121
 122       return @thread
 123     end # def start
 124
 125     def kill
 126       @thread.kill if @thread
 127     end
 128
 129   end # class SetupFloodgate
 130
 131 end # module ShogiServer