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Merge branch '201407-abnormal'
[shogi-server/shogi-server.git] / 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       $league.reload
68       floodgate.match_game
69     end
70
71     # Regenerate floodgate instances from next_instances for the next matches.
72     # @param next_instances array of [game_name, next_time]
73     #
74     def regenerate_leagues(next_instances)
75       leagues = next_instances.collect do |prev|
76         log_message("Regenerating a floodgate league...: %s %s %s %s" %
77                     [prev.game_name, prev.next_time, prev.pairing_factory, prev.sacrifice])
78         floodgate = ShogiServer::League::Floodgate.new($league, 
79                       {:game_name       => prev.game_name,       :next_time => prev.next_time,
80                        :pairing_factory => prev.pairing_factory, :sacrifice => prev.sacrifice})
81       end
82       floodgate_reload_log(leagues)
83       return leagues
84     end
85
86     def start
87       return nil if @game_names.nil? || @game_names.empty?
88
89       log_message("Set up floodgate games: %s" % [@game_names.join(",")])
90       @thread = Thread.start(@game_names) do |game_names|
91         Thread.pass
92         leagues = mk_leagues
93         if leagues.nil? || leagues.empty?
94           return # exit from this thread
95         end
96
97         while (true)
98           begin
99             floodgate = next_league(leagues)
100             next if wait_next_floodgate(floodgate)
101
102             next_instances = leagues.collect do |floodgate|
103               unless (floodgate.next_time - Time.now) > 0
104                 start_games(floodgate)
105                 floodgate.charge # updates next_time
106               end
107               floodgate
108             end
109
110             reload_shogi_server
111
112             # Regenerate floodgate instances after ShogiServer.realod
113             leagues = regenerate_leagues(next_instances)
114           rescue Exception => ex 
115             # ignore errors
116             log_error("[in Floodgate's thread] #{ex} #{ex.backtrace}")
117           end
118         end # infinite loop
119       end # Thread
120
121       return @thread
122     end # def start
123
124     def kill
125       @thread.kill if @thread
126     end
127
128   end # class SetupFloodgate
129
130 end # module ShogiServer