Class: DangoServerFramework

Inherits:
Object show all
Includes:
DangoFrameworkModule, DefaultDangoReceive, ServerMonitorModule
Defined in:
lib/dango/server_framework.rb

Overview

フレームワーククラス

Constant Summary collapse

RAILS_ENV = 
ENV['RAILS_ENV'] || 'development'
DefaultNetworkPort =

以下すべてデフォルト値

15000
DefaultNetworkHost =

デフォルトのポート番号

'localhost'
DefaultServerHost =

デフォルトのサーバーホスト名

'localhost'
DefaultMaxConnections =

接続制限ホスト “0.0.0.0”にすれば全接続オッケイ

10
DefaultLogFile =

デフォルトの最大接続人数

"log/dango_#{RAILS_ENV}.log"
DefaultLogLevel = 
Logger::INFO
DefaultLogMaxSize = 
1048576
DefaultLogShiftAge = 
99
DefaultGServerLogFile = 
""
DefaultPidFile = 
"tmp/pids/dango.#{RAILS_ENV}.pid"
SendReceiveSleepIntervalSec =

ここから先は普通は変更しなくていいだろうというもの

0.2
SendReceiveTimeoutDefaultSec =

データ送信時の送信間隔秒

5.0
HeartBeatIntervalSec =

SendTimeoutSec = 4.0 # データ送受信時の送信のタイムアウト秒数

10.0
HeartBeatReceiveWaitSec =

HeartBeatResponseWaitSec = 10.0 # S=>Cのheart beatの返信待ち秒数

30.0
GCIntervalSec =

C=>Sのheart beatの受信待ち秒数

5.0
StatisticsProcessMemoryCount =

GCの発生タイミング

100
ServerStopWait =

GCがこの回数起きた時に統計を取る

0.2
MainLoopWaitSec =

サーバー停止時のGServerの確認待ち時間

3.0

Constants included from DangoFrameworkModule

DangoFrameworkModule::CommMaxDigit, DangoFrameworkModule::DefaultEncodeType, DangoFrameworkModule::EncodeTypeJSON, DangoFrameworkModule::EncodeTypeMarshal, DangoFrameworkModule::EncodeTypeYAML, DangoFrameworkModule::MaxLenRecv, DangoFrameworkModule::MaxLenSend, DangoFrameworkModule::ReadTimeoutSec

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from DangoFrameworkModule

#dango_receive_data, #dango_send_data, #debug_print, #error_print

Methods included from DangoLoggerModule

#logger

Methods included from ErrorMessage

#error_message

Methods included from ServerMonitorModule

#_monitor_get_action_stat, #_monitor_get_server_info, #_monitor_get_session_list, #_monitor_get_shared, #_monitor_get_socket_list, #_monitor_mutex_status, #_monitor_send_system_message, #_monitor_server_reload, #_monitor_thread_status, #_monitor_write_shared

Methods included from DefaultDangoReceive

#dango_receive__change_encode_type, #dango_receive__notice_heart_beat

Constructor Details

#initialize(config) ⇒ DangoServerFramework

Returns a new instance of DangoServerFramework.



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# File 'lib/dango/server_framework.rb', line 89

def initialize(config)
  @config           = config # 設定ファイル
  
  @gserver = nil # Gserver用の変数
  @server_reload = nil # サーバーのリロード用フラグ
  
  @is_pid_file_create_time = nil # pidファイルを作ったかどうかのフラグ
  
  # SIGINT の捕捉
  Signal.trap(:INT) do 
    begin
      logger.warn "SIGINT\n#{caller(0).pretty_inspect}"
    rescue Exception
      logger.warn "SIGINT\n#{caller(0).inspect}"
    end
    stop_gserver() # gserverの停止
    exit_process() # プロセス終了処理
  end
  
  # 終了処理を登録しておく(これが無いとWindowsではエラーが出てもプロセスが落ちないことがある)
  at_exit do
    begin
      logger.info "at_exit ERROR\n#{caller(0).pretty_inspect}"
    rescue Exception
      logger.info "at_exit ERROR\n#{caller(0).inspect}"
    end
    stop_gserver() # gserverの停止
    exit_process() # プロセス終了処理
  end
  
  # スレッドグループの初期化
  @thr_gr_gserver_serve = ThreadGroup.new
  
  # データ送信用スレッドとQueue
  @queue_send_notice = Queue.new
  @mutex_send_notice = DangoMutex.new(:mutex_send_notice)
  Thread.start{ thread_send_notice_queue() }
  
  # メインスレッドの名前
  Thread.current[:_name] = "main"
  
  # サーバー開始
  server_start()
  
  loop do # 待ちで無限ループに入る
    sleep MainLoopWaitSec
#      p( Time.now_to_s + ":#{@server_reload.inspect}")
    check_reload_class()
  end
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args) ⇒ Object

必要に応じて追加するメソッド



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# File 'lib/dango/server_framework.rb', line 1068

def method_missing(name, *args)
  if name.to_s =~ /^dango_receive_action_notice_shared_(.+)/ # 共有メモリ変更通知なら
    key = $1
    method_action_notice_shared(key, name, *args)
  else
#      logger.error "method not found. #{name.inspect} #{args.inspect}"
    raise(NoMethodError, "method not found. #{name.inspect} #{args.inspect}")
  end
end

Instance Attribute Details

#config ⇒ Object (readonly)

読みよみのみのアクセサ



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# File 'lib/dango/server_framework.rb', line 140

def config
  @config
end

#shared ⇒ Object

Returns the value of attribute shared.



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# File 'lib/dango/server_framework.rb', line 748

def shared
  @shared
end

#socket_list ⇒ Object

Returns the value of attribute socket_list.



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# File 'lib/dango/server_framework.rb', line 765

def socket_list
  @socket_list
end

Class Method Details

.start(config = {}) ⇒ Object

起動用のインスタンスメソッド



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# File 'lib/dango/server_framework.rb', line 143

def self.start(config = {})
  self.new(config)
end

Instance Method Details

#check_reload_class ⇒ Object

サーバーのループ時のクラス読み直し処理



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# File 'lib/dango/server_framework.rb', line 240

def check_reload_class()
  begin
    if @server_reload
      @server_reload = nil
      
      debug_print("-- stopping server")
      stop_gserver() # gserverの停止
      @gserver = nil
      
      if @drb # drbを起動していればそれの停止
        DRb.stop_service()
        puts "stop drb server"
        @drb = nil
      end
      
      debug_print("-- stopped server")
      
      # GCを行う
      GC.enable
      GC.start 
      GC.disable
      
      # サーバーファイルを読み直し
      debug_print("-- reload classes")
      tmp_verbose = $VERBOSE
      $VERBOSE = nil
      
      # serverファイル名一覧を取得
      load_files = []
      glob_str = 'dango/server/*.rb'
      Dir.glob(glob_str) do |srv_file|
        load_files.push({:file=>srv_file, :mtime=>File.mtime(srv_file)})
      end
      
      # ファイル名順にソート
      load_files = load_files.sort_by{|f| f[:file] }
      load_files.each do |f|
        begin
          load f[:file]
        rescue Exception
          debug_print("#{error_message($!, 'u')}")
        end
      end
      
      $VERBOSE = tmp_verbose
      
      # サーバーを再度起動
      debug_print("-- start server")
      server_start() # サーバー開始
    end
  rescue Exception
    error_print("#{error_message($!, 'u')}")
  end
end

#connecting(sock) ⇒ Object

gserver接続開始処理



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# File 'lib/dango/server_framework.rb', line 296

def connecting(sock)
  logger.info "connecting:sock=#{sock.object_id} peeraddr=#{sock.peeraddr.inspect} addr=#{sock.addr.inspect}"
end

#dango_close ⇒ Object

接続解除時に呼び出されるメソッド



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# File 'lib/dango/server_framework.rb', line 773

def dango_close
end

#dango_connect ⇒ Object

接続時に呼び出されるメソッド



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# File 'lib/dango/server_framework.rb', line 769

def dango_connect
end

#dango_server_init ⇒ Object

attr_reader(:start_time, :recv_count, :send_count, :recv_fail_count, :send_fail_count)

attr_reader(:recv_byte, :send_byte, :mutex_fail_count, :action_stat)
attr_reader(:log_level_str, :log_file, :log_max_size, :log_shift_age)



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# File 'lib/dango/server_framework.rb', line 732

def dango_server_init # 初期設定
end

#dango_server_receive_decrypt(str) ⇒ Object

サーバーの復号化処理



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# File 'lib/dango/server_framework.rb', line 786

def dango_server_receive_decrypt(str) # 継承用
  str
end

#dango_server_send_encrypt(str) ⇒ Object

サーバーの暗号化処理



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# File 'lib/dango/server_framework.rb', line 778

def dango_server_send_encrypt(str) # 継承用
  str
end

#disconnecting(port) ⇒ Object

gserver接続開始処理



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# File 'lib/dango/server_framework.rb', line 301

def disconnecting(port)
  logger.info "disconnecting:port=#{port}"
end

#do_flash_policy_file(sid, sock) ⇒ Object

Flashのポリシーファイルの処理



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# File 'lib/dango/server_framework.rb', line 621

def do_flash_policy_file(sid, sock) 
  
  if @policy_file_request # ポリシーファイルを返す設定なら
    logger.info "is_flash_policy_file #{sid} #{@policy_file_request}"
    
    allow_str = ""
    
    @policy_file_allow_domain.each do |one_host|
      allow_str += %Q|<allow-access-from domain="#{one_host}" to-ports="#{@policy_file_allow_port.join(',')}" />|
      allow_str += "\n"
    end

    policy_data = <<EOF
<?xml version="1.0"?>
<cross-domain-policy>
#{allow_str}
</cross-domain-policy>
EOF

    logger.debug policy_data
    @mutex_sock[sock.object_id].timeout_sync(2, "policy_send #{sock.object_id}") do
      sock.write policy_data
      sock.flush
    end
    
    logger.info "policy file sent."
  end
end

#exit_process ⇒ Object

プロセス終了処理



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# File 'lib/dango/server_framework.rb', line 76

def exit_process() # プロセス終了処理
  debug_print("shutdown")
  if @is_pid_file_create_time == File.mtime(@pid_file)
    begin
      File.delete(@pid_file)
    rescue 
      puts "failed delete file. #{@pid_file}:#{$!.class}:#{$!.message}"
    end
  end
  puts "shutdown"
  exit!
end

#gc_thread_start ⇒ Object

GCスレッドの開始(メモリ使用量統計も含む)



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# File 'lib/dango/server_framework.rb', line 794

def gc_thread_start
  th = Thread.start do
    Thread.current[:_name] = "thread_gc"
    loop do
      begin
        sleep @gc_interval_sec
        
#          logger.debug "mpth:1:GC start mutex start"
#          @mutex_proc_thread.timeout_sync(3, :gc) do
#            logger.debug "mpth:2:GC start #{Time.now_to_s}"
          
          logger.debug "GC start mutex start"
          gc_start_time = Time.now
          GC.enable
          GC.start 
          GC.disable
          logger.debug "GC end #{Time.now - gc_start_time}sec "
#          end
        logger.debug "GC start mutex end"
        
        output_memory_statistics() if @statistics_process_memory # メモリ使用量統計
        
      rescue DangoFrameworkMutexTimeoutException
        @mutex_fail_count += 1 if @mutex_fail_count
        logger.warn "DangoFrameworkMutexTimeoutException gc_thread_start" + 
                     "#{error_message($!, 'u')}"
      rescue Exception
        logger.error "Exception gc_thread_start  #{error_message($!, 'u')}"
      end
    end # loop end
  end
  th.priority = 3
end

#heart_beat_thread_start ⇒ Object

ハートビートスレッドの開始



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# File 'lib/dango/server_framework.rb', line 852

def heart_beat_thread_start
  shared[:_heart_beat_time_hash] = {}
  
  th = Thread.start do
    Thread.current[:_name] = "thread_heart_beat"
    loop do
      begin
        sleep @herat_beat_interval_sec
        
        # gserverが初期化されていなければスキップ
        # gserverが起動していればスキップ
        next if ! @gserver 
        next if ! @gserver.respond_to?(:stopped?)
        next if @gserver.stopped?
        
#          logger.debug "mpth:1:heart_beat_thread_start "
#          @mutex_proc_thread.timeout_sync(3, :heart_beat_thread) do
#            logger.debug "mpth:2:heart_beat_thread_start "
          
          # 古いハートビート情報は先に削除しておく
          shared.transaction(:_heart_beat_time_hash) do |hbt_hash|
            hbt_hash.keys.each do |sid|
              hbt_hash.delete(sid) if hbt_hash[sid] < Time.now - @heart_beat_receive_wait_sec * 30
            end
            shared.commit(hbt_hash)
          end
          
          # クライアントから来るハートビートのチェック
          heart_beat_time_hash = shared[:_heart_beat_time_hash]
          
          # 全員分のチェック
          socket_list.all_sid.each do |sid|
            sock = socket_list[sid]
            
            if ! sock # すでにsocketが無い場合は、スキップ
              logger.warn "!!!! heart_beat_thread_start:sock is not found. #{sid}:#{sock.object_id}"
              shared.transaction(:_heart_beat_time_hash) do |hbt_hash|
                hbt_hash.delete(sid)
                shared.commit(hbt_hash)
              end
              next 
            end
            
            # クライアントから来たハートビートの時間チェックし、古ければsocketを閉じる
            if heart_beat_time_hash[sid] && 
               heart_beat_time_hash[sid] < Time.now - @heart_beat_receive_wait_sec
              
              logger.warn "!!!! heart_beat_thread_start:heart beat old:#{sid}:" + 
                          "#{heart_beat_time_hash[sid]}:#{sock.object_id}:#{sock.closed?}"
              
              shared.transaction(:_heart_beat_time_hash) do |hbt_hash|
                hbt_hash.delete(sid)
                shared.commit(hbt_hash)
              end
              
              begin
                @mutex_sock[sock.object_id].timeout_sync(2, "hb_close #{sock.object_id}") do
                  sock.close
                end 
              rescue IOError
                logger.debug "heart_beat_thread_start:maybe already closed. IOError:#{sid}:#{sock.object_id}"
              rescue Exception
                logger.warn "heart_beat_thread_start:failed close socket:#{error_message($!, 'u')}"
              end
              next
            end
          end # socket_list
          
#          end # @mutex_proc_thread
        logger.debug "heart_beat_thread_start end"
        
      rescue DangoFrameworkMutexTimeoutException
        @mutex_fail_count += 1 if @mutex_fail_count
        logger.warn "DangoFrameworkMutexTimeoutException heart_beat_thread_start" + 
                     "#{error_message($!, 'u')}"
      rescue Exception
        logger.error "Exception heart_beat_thread_start  #{error_message($!, 'u')}"
      end
    end # loop end
  end
  th.priority = 1
end

#method_action_notice_shared(key, name, *args) ⇒ Object

共有メモリ変更通知のメソッド



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# File 'lib/dango/server_framework.rb', line 1079

def method_action_notice_shared(key, name, *args) 
  logger.debug "method_name:#{name}"
  send_obj = args[0]
  notice_shared.notice_change(key.to_sym, send_obj) 
end

#output_memory_statistics ⇒ Object

メモリ使用量統計



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# File 'lib/dango/server_framework.rb', line 829

def output_memory_statistics()
  memory_usage = 0
  if RUBY_PLATFORM == 'i386-mswin32'
    require "win32ole"
    locator = WIN32OLE.new("WbemScripting.SWbemLocator.1")
    service = locator.ConnectServer
    set = service.ExecQuery("select * from Win32_Process WHERE ProcessId = #{Process.pid}")
    set.each do |process| 
      memory_usage = process.PageFileUsage.to_i
    end
  else
    stat = `cat /proc/#{Process.pid}/stat`.split(" ")
    memory_usage = stat[22].to_i
  end
  
  open("log/dango_stat_proc_mem_#{RAILS_ENV}.log", "ab") do |fh|
    fh.write "#{Time.now_to_s},#{memory_usage},#{@thr_gr_gserver_serve.list.length}\n"
  end
  logger.debug "statistics_process_memory file add."
end

#receive_decrypt(str) ⇒ Object

フレームワークから呼ばれる部分



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# File 'lib/dango/server_framework.rb', line 789

def receive_decrypt(str) # フレームワークから呼ばれる部分
  dango_server_receive_decrypt(str)
end

#select_shared_database_manager ⇒ Object

コンフィグのshared_database_managerによる使用クラスの選択



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# File 'lib/dango/server_framework.rb', line 736

def select_shared_database_manager()
  if @config['server']['shared_database_manager'] == 'MemoryStore'
    SharedMemoryStore.new(@config)
  else
    SharedMemoryStore.new(@config)
  end
end

#send_encrypt(str) ⇒ Object

フレームワークから呼ばれる部分



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# File 'lib/dango/server_framework.rb', line 781

def send_encrypt(str) # フレームワークから呼ばれる部分
  dango_server_send_encrypt(str)
end

#send_notice(notice_name, sids, send_obj, options = {}) ⇒ Object

サーバーからクライアントへのデータ送信

Raises:



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# File 'lib/dango/server_framework.rb', line 946

def send_notice(notice_name, sids, send_obj, options = {})
  logger.info "send_notice(#{notice_name.inspect}, #{sids.inspect}) "
  
  raise(DangoFrameworkException, "send_obj is not Hash.") if ! send_obj.is_a?(Hash)
  
  sids = [sids] if sids.is_a?(Integer)
  raise(DangoFrameworkException, "sids is not Array.") if ! sids.is_a?(Array)
  
#    timeout = options[:timeout] || @send_receive_timeout_default_sec
  encode_type = options[:encode_type] || 0
  
  send_obj_dup = send_obj.deep_dup
  send_obj_dup["_notice_name"] = notice_name.to_s
  send_obj_dup["_server_time"] = Time.now_to_s
  
  sids.each do |sid|
#      send_id = Digest::MD5.hexdigest(sid.to_s + notice_name.to_s + Time.now.to_f.to_s + rand().to_s)
#      send_id = sid.to_s + notice_name.to_s + Time.now.to_f.to_s + rand().to_s
    send_id = notice_name.to_s + Time.now.to_f.to_s + rand().to_s
    send_obj_dup["_id"] = send_id
    
    # queue_send_noticeに排他処理
    begin
      @mutex_send_notice.timeout_sync(10, :queue_push) do 
        @queue_send_notice.push([sid, send_obj_dup, encode_type].deep_dup)
      end
    rescue DangoFrameworkMutexTimeoutException
      @mutex_fail_count += 1 if @mutex_fail_count
      logger.warn "mutex_send_notice #{error_message($!, 'u')}"
    rescue Exception
      logger.error "mutex_send_notice #{error_message($!, 'u')}"
    end
  end # end sids.each
  
  self
end

#send_return(send_obj, options = {}) ⇒ Object

サーバーからクライアントへのデータ返信

Raises:



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# File 'lib/dango/server_framework.rb', line 936

def send_return(send_obj, options = {})
  logger.info "send_return(#{session[:sid].inspect}) "
  
  raise(DangoFrameworkException, "session[:sid] is not exist.") if ! session[:sid]
  raise(DangoFrameworkException, "session[:_action_name] is not exist.") if ! session[:_action_name]
  
  send_notice("return_#{session[:_action_name]}", session[:sid], send_obj, options)
end

#server_start ⇒ Object

サーバー開始処理



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# File 'lib/dango/server_framework.rb', line 148

def server_start()
  begin
    set_server_variables()                # 各種サーバー仕様の変数設定
    
    require 'resolv-replace' if @safe_resolver # 名前解決時のロックがかかってしまう件を解決できるはず
    
    if @no_start_log
      logger.debug("===== no_start_log=#{@no_start_log.inspect} =====")
    else
      logger.warn("===== server initialize =====") # loggerの準備
      logger.warn("network_port=#{@network_port}")
      logger.warn("network_host=#{@network_host}")
      logger.warn("server_host=#{@server_host}")
      logger.warn("max_connections=#{@server_max_connections}")
      logger.warn("RAILS_ENV=#{RAILS_ENV}")
      logger.warn("Process.pid=#{Process.pid}")
      logger.warn("Dango Version=#{Dango::VERSION::STRING} p#{Dango::VERSION::PATCH}")
      logger.warn("Rails Version=#{RAILS_GEM_VERSION}")
#        logger.debug("$LOADED_FEATURES=#{$LOADED_FEATURES.pretty_inspect}")
    end
    
    shared_init()                                             # 共有メモリを初期化
    socket_list_init()                                        # ソケット一覧を初期化
    @mutex_sock = {}                                          # ソケットの排他処理ハッシュ
    @session_manager = SessionManager.new(shared, RAILS_ENV)  # セッション情報の初期化
    
    @mutex_proc_thread = DangoMutex.new(:mutex_proc_thread)   # スレッドが同時起動しないようにするためのMutex
    heart_beat_thread_start()                          # ハートビートスレッドの開始
    gc_thread_start()                                  # GCスレッドの開始
    
    dango_server_init()                                # 初期設定読み込み
    
    @mutex_send_response = DangoMutex.new(:mutex_send_response) # 送信レスポンス用のMutex
    @arr_send_response = []                                     # 送信レスポンス用のキャッシュ
    
    
    TCPSocket.do_not_reverse_lookup = true # 逆引きを行わない
#     TCPSocket.do_not_reverse_lookup = false # 逆引きを行う
    
    if @backdoor_run_drb_server                    # backdoor用のdrbを起動
      require "drb"
      require "drb/acl"
#        uri = "druby://#{@network_host}:#{@backdoor_run_drb_port}"
      uri = @backdoor_run_drb_url
      
      allow_list = @backdoor_run_drb_allow_list.split(/\s+/)
      
      acl_list = ["deny", "all"]
      allow_list.each do |allow_host|
        acl_list.push("allow")
        acl_list.push(allow_host)
      end
      logger.info "drb acl_list=#{acl_list.inspect}"
      
      acl = ACL.new(acl_list, ACL::DENY_ALLOW)
      @drb = DRb.start_service(uri, self, acl)
#        @drb = DRb.start_service(uri, self)
      DRb.thread[:_name] = "thread_drb_main"
      message = "start drb server: uri=#{DRb.uri}"
      logger.warn(message)
      puts message
    else
      @drb = nil
    end
    
    set_loop_setting(@loop_setting) if @loop_setting # ループ処理を定義
    
    
    @gserver = DangoGServer.new(self, @network_port, @server_host, @server_max_connections)
    @gserver.audit = true                 # Turn logging on.
    @gserver.debug = true                 # debug
    
    if @gserver_log_file.to_s != "" 
      gserver_log_fh = open(@gserver_log_file, "a")
      @gserver.stdlog = gserver_log_fh
    end
    
    GC.disable
    open(@pid_file, "wb"){|fh| fh.write Process.pid.to_s } # pidをファイルに保存
    @is_pid_file_create_time = File.mtime(@pid_file) # pidファイルを作ったことを記録
    
#      @gserver.start(@server_max_connections)
    @gserver.start(@server_max_connections, 20) # backlogを20に設定
    
  rescue Exception
    puts "gserver.start:" + error_message($!)
#      error_print(error_message($!, 'u'))
    exit!
  end
end

#session ⇒ Object

セッション



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# File 'lib/dango/server_framework.rb', line 752

def session
  @session_manager.session
end

#session_list ⇒ Object 



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# File 'lib/dango/server_framework.rb', line 756

def session_list
  @session_manager.session_list
end

#set_loop_setting(options = {}) ⇒ Object

メインループ用の定義をするためのメソッド



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# File 'lib/dango/server_framework.rb', line 1086

def set_loop_setting(options = {})
  options = options.deep_dup
  
  shared[:_is_server_sleep] = nil # メンテナンス停止用
  
  if options["method_name"] # メソッド名が無ければ処理しない
    method_name = options["method_name"]
    
    options["frame_rate"] ||= 5
    wait_sec = 1.0 / options["frame_rate"]
    logger.warn "set_loop_setting wait_sec:#{wait_sec.inspect} method_name=#{method_name}"
    
    th = Thread.new do 
      logger.debug "set_loop_setting start"
      count = 0
      
      last_mutex_fail_count = @mutex_fail_count.deep_dup # 前回のmutex_fail_countを記録する
      
      loop do
        begin
          before_time = Time.now
          
          logger.debug "mpth:1:sls"
          @mutex_proc_thread.timeout_sync(3, "set_loop_setting_send_#{method_name}") do
            logger.debug "mpth:2:sls"
            __send__(method_name)
          end # mutex_proc_thread
          # if count % 1000 == 0
          
          exec_sec = Time.now - before_time
          logger.info "set_loop_setting:long execute time=#{exec_sec}" if exec_sec > 1.0
          
          real_wait_sec = wait_sec - exec_sec
          sleep real_wait_sec if real_wait_sec > 0
          
          count += 1
          count = 0 if count >= 10000000
          
          # mutex_fail_countが増えたらサーバーが重くなりすぎていると判断してちょっと待つ
          if @mutex_fail_count.to_i > last_mutex_fail_count
            sleep 1
            last_mutex_fail_count = @mutex_fail_count.to_i
          end
          
          # メンテナンス機能
          if shared[:_is_server_sleep]
            logger.info "set_loop_setting SLEEP !!!"
            sleep 10000 
          end
        rescue DangoFrameworkMutexTimeoutException
          @mutex_fail_count += 1 if @mutex_fail_count
          logger.warn "set_loop_setting error:#{error_message($!, 'u')}"
        rescue Exception
          logger.error "set_loop_setting error:#{error_message($!, 'u')}"
        end
      end
    end # th.end
  end
end

#set_server_variables ⇒ Object

各種サーバー仕様の変数設定



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# File 'lib/dango/server_framework.rb', line 651

def set_server_variables() 
  # 変数の初期設定
  @thread_abort_on_exception         = @config['server']['thread_abort_on_exception'] || true
  
  @network_port                      = @config['network']['port'] || DefaultNetworkPort
  @network_host                      = @config['network']['host'] || DefaultNetworkHost
  @server_host                       = @config['server']['host'] || DefaultServerHost
  @server_max_connections            = @config['server']['max_connections'] || DefaultMaxConnections
  @log_file                          = @config['server']['log_file'] || DefaultLogFile
  @log_max_size                      = @config['server']['log_max_size'] || DefaultLogMaxSize
  @log_shift_age                     = @config['server']['log_shift_age'] || DefaultLogShiftAge
  @gserver_log_file                  = @config['server']['gserver_log_file'] || DefaultGServerLogFile
  @pid_file                          = @config['server']['pid_file'] || DefaultPidFile
  
  @send_receive_sleep_interval_sec   = @config['server']['send_receive_sleep_interval_sec'] || SendReceiveSleepIntervalSec
  @send_receive_timeout_default_sec  = @config['server']['send_receive_timeout_default_sec'] || SendReceiveTimeoutDefaultSec
#    @send_timeout_sec                  = @config['server']['send_timeout_sec'] || SendTimeoutSec
  @herat_beat_interval_sec           = @config['server']['heart_beat_interval_sec'] || HeartBeatIntervalSec
#    @heart_beat_response_wait_sec      = @config['server']['heart_beat_response_wait_sec'] || HeartBeatResponseWaitSec
  @heart_beat_receive_wait_sec       = @config['server']['heart_beat_receive_wait_sec'] || HeartBeatReceiveWaitSec
  @gc_interval_sec                   = @config['server']['gc_interval_sec'] || GCIntervalSec
  
  @policy_file_request               = @config['server']['policy_file_request']
  @policy_file_request               = true if @policy_file_request == nil
  
  @policy_file_allow_domain          = @config['server']['policy_file_allow_domain']
  @policy_file_allow_domain          = [@network_host] if @policy_file_allow_domain.class != Array
  
  @policy_file_allow_port            = @config['server']['policy_file_allow_port']
  @policy_file_allow_port            = [@network_port] if !@policy_file_allow_port
  
  @safe_resolver               = @config['server']['safe_resolver'] || false # require 'resolv-replace'するかどうか
  
  @statistics_process_memory   = @config['server']['statistics_process_memory'] || false # プロセスのメモリ使用量統計取る
  
  @backdoor_run_drb_server     = @config['server']['backdoor_run_drb_server'] || false # drbサーバーを起動するか
  @backdoor_run_drb_url        = @config['server']['backdoor_run_drb_url'] || 12345    # drbサーバーのポート番号
  @backdoor_run_drb_allow_list = @config['server']['backdoor_run_drb_allow_list'] || '127.0.0.1 localhost' # アクセス可能ホスト名
  
  @loop_setting                = @config['server']['loop_setting']                     # メインループ用の定義
  
  @no_start_log                = @config['server']['no_start_log']                     # メインループ用の定義
  
  # ログレベルの設定
  log_level_hash = {
    "FATAL" => Logger::FATAL, 
    "ERROR" => Logger::ERROR, 
    "WARN"  => Logger::WARN, 
    "INFO"  => Logger::INFO, 
    "DEBUG" => Logger::DEBUG, 
  }
  log_level_hash.each do |str, const|
    @log_level = const if str.downcase == @config['server']['log_level'].to_s.downcase
  end
  @log_level = @log_level || DefaultLogLevel
  
  log_level_hash.each do |str, const|
    @log_level_str = str if const == @log_level
  end
  
  # スレッド終了時に全体停止する
  Thread.abort_on_exception = true if @thread_abort_on_exception
  
  # 統計用情報の初期化
  @start_time = Time.now # サーバー起動時間
  @recv_count = 0        # 受信回数
  @send_count = 0        # 送信回数
  @recv_fail_count = 0   # 受信失敗回数
  @send_fail_count = 0   # 送信失敗回数
  @recv_byte = 0         # 受信バイト数
  @send_byte = 0         # 送信バイト数
  
  @mutex_fail_count = 0  # 排他処理の失敗回数
  
  @action_stat = {}      # アクションの統計用
end

#shared_init ⇒ Object

共有メモリ



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# File 'lib/dango/server_framework.rb', line 745

def shared_init
  @shared = select_shared_database_manager()
end

#socket_list_init ⇒ Object

ソケットとIDの対応



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# File 'lib/dango/server_framework.rb', line 762

def socket_list_init
  @socket_list = SocketList.new
end

#starting ⇒ Object

gserver開始処理



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# File 'lib/dango/server_framework.rb', line 306

def starting()
  msg = "#{self.class.to_s} #{@server_host}:#{@network_port}/#{@server_max_connections} start"
  logger.warn msg
  puts "[#{Time.now_to_s}] #{msg}" if @gserver_log_file.to_s != "" 
end

#stop_gserver ⇒ Object

メインループの待ち時間（サーバー内ファイルのチェック時間）



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# File 'lib/dango/server_framework.rb', line 53

def stop_gserver() # gserverの停止
  if @gserver && !@gserver.stopped?
    # 強制的に接続しているsocketをクローズ
    logger.info "socket_list.all_sid:#{socket_list.all_sid.inspect}"
    socket_list.all_sid.each do |sid|
      logger.debug "sk:#{socket_list[sid].inspect}"
      next if ! socket_list[sid]
      socket_list[sid].close if ! socket_list[sid].closed?
      socket_list[sid]
    end
    
    # サーバーを停止
    @gserver.shutdown
    @gserver.stop
    10.times do
      break if @gserver.stopped?
      sleep ServerStopWait
      debug_print("waiting... #{@gserver.stopped?} #{@gserver.connections}")
    end
  end
  
end

#stopping ⇒ Object

gserver終了処理



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# File 'lib/dango/server_framework.rb', line 313

def stopping()
  msg = "#{self.class.to_s} #{@server_host}:#{@network_port} stop"
  logger.warn msg
  puts "[#{Time.now_to_s}] #{msg}" if @gserver_log_file.to_s != "" 
end

#thread_main(sock) ⇒ Object

gserverのserveメソッド：スレッド開始処理



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# File 'lib/dango/server_framework.rb', line 320

def thread_main(sock)
  logger.info "thread_main:connect. sock=#{sock.object_id} thread.current=#{Thread.current.object_id}"
  Thread.current[:_name] = "thread_main #{sock.object_id}"
  
  @thr_gr_gserver_serve.add(Thread.current) # スレッドグループに登録
  
  begin
    @session_manager.start_session() # sessionの開始処理 sidは自動生成
    sid = session[:sid]
    
    # sockに対しての=nil write close などの書き換えに対する排他処理
    @mutex_sock[sock.object_id] = DangoMutex.new("mutex_sock_#{sock.object_id}")
    
    @mutex_sock[sock.object_id].timeout_sync(2, "start #{sock.object_id}") do
      sock.binmode
      sock.sync = true
      
      session[:peer_addr]       = sock.peeraddr
      session[:peer_ip_address] = sock.peeraddr[3]
      session[:peer_host]       = sock.peeraddr[2]
    end
    
    session[:encode_type] = DefaultEncodeType
    
    logger.debug "thread_main:start_session. sid=#{sid} sock=#{sock.object_id} thread.current=#{Thread.current.object_id}"
    
    socket_list.add(sid, sock)
    
    session[:connected] = nil # まだdango_connectを呼び出していない
    
    is_flash_policy_file = false
    
    logger.debug "thread_main:do main loop."
    
    # メインループ入り
    count = 0
    loop do
      if sock.closed?
        logger.info "#{sock.object_id}:sock is closed... #{count}"
        break
      end
      
      ret_objs = nil
      begin
        logger.debug "dango_receive_data:start:sock=#{sock.object_id} #{count}" if count % 100 == 0
        ret_objs = dango_receive_data(sock) # データ受信処理
        logger.debug "dango_receive_data:finish:sock=#{sock.object_id} #{count}" if count % 100 == 0
        is_flash_policy_file = false
      rescue DangoFrameworkFlashPolicyException
        is_flash_policy_file = true
      end
      
      # メンテナンス機能
      if shared[:_is_server_sleep]
        logger.info "thread_main SLEEP !!!"
        sleep 10000 
      end
      
      if is_flash_policy_file # Flashのポリシーファイルが来たら
        logger.debug "is_flash_policy_file"
        do_flash_policy_file(sid, sock)
        
        # この部分はポリシーファイルを返す設定に関係なく実行する部分
#          sleep 0.1
        raise(DangoFrameworkFlashPolicyException, "requested policy file. disconnectiong...")
        
      elsif ret_objs == [] # 受信データがなければ
        logger.debug "ret_objs is empty. "
        
      else # 受信データがあれば
        logger.debug "dango_receive_data:ret_objs=#{ret_objs.class} #{count}" if count % 100 == 0
        
        ret_objs.each do |ret_obj| # 受信データループ
          if !(ret_obj && ret_obj["_action_name"]) # action_nameが無い場合はエラー
            logger.warn "no action_name error:#{ret_obj.inspect}"
            raise(DangoFrameworkException, "no action_name error") 
          end
          
          # アクション名
          action_name = ret_obj["_action_name"].to_s
          session[:_action_name] = action_name
          
          # 自動返信用データ
          return_data = {}
          ret_obj.each do |key, value|
            if key =~ /^_return_(.*)$/
              return_data[$1.to_sym] = value
            end
          end
          session[:_return] = return_data
          
          # アクションの統計情報情報の作成
          if ! @action_stat.has_key?(action_name)
            @action_stat[action_name] = {:total_sec => 0, :exec_count => 0, :fail_count => 0, } 
          end
          
          # アクションの実行
          logger.debug "mpth:1:receive_action:session=#{sid} #{count}"
          begin
            @mutex_proc_thread.timeout_sync(3, "receive_action_#{action_name}") do
              logger.debug "mpth:2:receive_action:#{sid}:#{action_name}:"
              begin
                before_time = Time.now
                __send__("dango_receive_#{action_name}", ret_obj)
                send_sec = Time.now - before_time
                @action_stat[action_name][:total_sec] = send_sec
                @action_stat[action_name][:exec_count] += 1
                
              rescue NoMethodError
                @recv_fail_count += 1 if @recv_fail_count # 受信失敗回数カウント
                @action_stat[action_name][:fail_count] += 1
                logger.error "not find action #{action_name}:#{sid}:#{error_message($!, 'u')}"
              rescue DangoFrameworkTimeoutException
                @action_stat[action_name][:fail_count] += 1
                logger.error "action is timeout:#{action_name}:#{sid}:#{error_message($!, 'u')}"
              end
              
            end # @mutex_proc_thread
          rescue DangoFrameworkMutexTimeoutException
            @mutex_fail_count += 1 if @mutex_fail_count
            @action_stat[action_name][:fail_count] += 1
            logger.warn "receive_action DangoFrameworkMutexTimeoutException. #{sid} \n#{error_message($!, 'u')}"
            sleep 1
            logger.warn "receive_action DangoFrameworkMutexTimeoutException. #{sid} end sleep"
            raise(DangoFrameworkDisconnectException)
          rescue Exception
            logger.error "receive_action Exception #{sid} #{error_message($!, 'u')}"
            @action_stat[action_name][:fail_count] += 1
            raise(DangoFrameworkDisconnectException)
          end
          
          # 不要になったセッション内のデータを削除（sidは再利用されるので消さない）
          session.delete(:_action_name)
          session.delete(:_return)
        end
        
        if ! session[:connected] # まだdango_connectを呼び出していないなら
          logger.debug "mpth:1:dango_connect"
          begin
            @mutex_proc_thread.timeout_sync(3, :dango_connect) do
              logger.debug "mpth:2:dango_connect"
              # 接続直後のsid通知
              send_obj = {"_sid"=>sid}
              send_notice("_notice_sid", sid, send_obj)
              logger.debug "_notice_sid #{sid} "
              
              dango_connect() # 接続時メソッド呼び出し
              session[:connected] = true
              
            end # mutex_proc_thread
          rescue DangoFrameworkMutexTimeoutException
            @mutex_fail_count += 1 if @mutex_fail_count
            logger.warn "dango_connect DangoFrameworkMutexTimeoutException. #{sid} \n#{error_message($!, 'u')}"
            sleep 1
            logger.warn "dango_connect DangoFrameworkMutexTimeoutException. #{sid} end sleep"
            raise(DangoFrameworkDisconnectException)
          rescue Exception
            logger.error "dango_connect Exception #{sid} #{error_message($!, 'u')}"
            raise(DangoFrameworkDisconnectException)
          end
        end
      end
      
      count += 1
    end # loop
    
  rescue DangoFrameworkFlashPolicyException
    logger.info "Flash policy file #{sid} "
    
  rescue DangoFrameworkMonitorSecurityException
    logger.warn "Monitor Security Error #{sid} "
    
  rescue DangoFrameworkReadNoDataException
    @recv_fail_count += 1 if @recv_fail_count # 受信失敗回数カウント
    logger.debug "read no data. maybe client closed. #{sid} "
    
  rescue DangoFrameworkReadTimeoutException
    @recv_fail_count += 1 if @recv_fail_count # 受信失敗回数カウント
    logger.debug "read timeout error. #{sid} \n#{error_message($!, 'u')}"
    
  rescue DangoFrameworkConnectionException
    @recv_fail_count += 1 if @recv_fail_count # 受信失敗回数カウント
    logger.debug "connection error. #{sid} \n#{error_message($!, 'u')}"
    
  rescue DangoFrameworkDisconnectException
    logger.debug "DangoFrameworkDisconnectException. #{sid} \n#{error_message($!, 'u')}"
    
  rescue EOFError, IOError, Errno::ECONNRESET, Errno::ETIMEDOUT, Errno::ECONNABORTED, Errno::ENOTCONN
    logger.debug "#{$!.class}. #{sid} maybe dissconnect exception \n#{error_message($!, 'u')}"
    
  rescue DangoFrameworkMutexTimeoutException
    @mutex_fail_count += 1 if @mutex_fail_count
    logger.warn "DangoFrameworkMutexTimeoutException. #{sid} \n#{error_message($!, 'u')}"
    sleep 1
    logger.warn "DangoFrameworkMutexTimeoutException. #{sid} end sleep"
    
  rescue DangoFrameworkException
    logger.debug "DangoFrameworkException. #{sid} \n#{error_message($!, 'u')}"
    
  rescue Exception
    logger.error "Exception #{sid} #{error_message($!, 'u')}"
    
  end
  
  # 接続切断の処理
  begin
    if !is_flash_policy_file # Flash Policy Fileなら切断処理不要
      logger.info "#{sock.object_id} #{sid} is closing"
      if session[:connected] # dango_connect()が実行済みなら
        begin
          5.times do |i| # リトライ用のループ
            begin
              need_retry = false
              logger.debug "mpth:1:dango_close"
              @mutex_proc_thread.timeout_sync(3, :dango_close) do
                logger.debug "mpth:2:dango_close"
                dango_close() # 接続解除時に呼び出されるメソッド
                
                # ハートビートのごみを削除
                shared.transaction(:_heart_beat_time_hash) do |hbt_hash|
                  hbt_hash.delete(sid)
                  shared.commit(hbt_hash)
                end
                
              end # mutex_proc_thread
              logger.debug "dango_close end"
              
            rescue DangoFrameworkMutexTimeoutException
              need_retry = true
              @mutex_fail_count += 1 if @mutex_fail_count
              logger.warn "dango_close DangoFrameworkMutexTimeoutException1#{sid} \n " + 
                           "#{error_message($!, 'u')}"
            end
            
            if need_retry # リトライが必要と判断されれば
              logger.warn "dango_close failed. need retry #{i}"
              sleep(rand(5) + 5)
            else # リトライ不要で落とすなら
              break
            end
          end # times
          
        rescue Exception
          if $!.class == DangoFrameworkMutexTimeoutException
            @mutex_fail_count += 1 if @mutex_fail_count
            logger.warn "dango_close DangoFrameworkMutexTimeoutException2 #{sid} \n" + 
                         "#{error_message($!, 'u')}"
            sleep 1
            logger.warn "dango_close DangoFrameworkMutexTimeoutException. #{sid} end sleep"
          else
            logger.error "dango_close #{sock.object_id} #{sid} ERROR\n#{error_message($!, 'u')}"
          end
        end
      end
    end
    
    begin
      @mutex_sock[sock.object_id].timeout_sync(2, "close #{sock.object_id}") do
        sock.close            # ソケットを閉じる
      end
    rescue IOError
      logger.info "IOError #{sock.object_id} #{sid}"
    rescue DangoFrameworkMutexTimeoutException
      @mutex_fail_count += 1 if @mutex_fail_count
      logger.warn "sock.close DangoFrameworkMutexTimeoutException #{sid} #{sock.object_id}\n" + 
                  "#{error_message($!, 'u')}"
      sleep 1
      logger.warn "sock.close DangoFrameworkMutexTimeoutException. #{sid} end sleep"
    rescue Exception
      logger.error "sock.close Exception #{sid} #{sock.object_id}\n#{error_message($!, 'u')}"
    end
    
    logger.info "#{sock.object_id} #{sid} is closed"
    
    socket_list.delete(sid)     # ソケットリストから削除
    
    sock_object_id = sock.object_id
    begin
      @mutex_sock[sock_object_id].timeout_sync(2, "delete #{sock.object_id}") do
        sock = nil   # ソケット削除
      end
    rescue DangoFrameworkMutexTimeoutException
      @mutex_fail_count += 1 if @mutex_fail_count
      logger.warn "sock = nil DangoFrameworkMutexTimeoutException #{sid} #{sock.object_id}\n" + 
                  "#{error_message($!, 'u')}"
      sleep 1
      logger.warn "sock = nil DangoFrameworkMutexTimeoutException. #{sid} end sleep"
    end
    
    @mutex_sock.delete(sock_object_id) # ソケット排他処理から削除
    
    @session_manager.close_session(sid) # sessionの終了処理
    
  rescue Exception
    logger.error "close process failed:Exception #{sid} #{sock.object_id} \n" + 
                 "#{error_message($!, 'u')}"
  end
  
end

#thread_send_notice_queue ⇒ Object

thread for send_notice_queue



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# File 'lib/dango/server_framework.rb', line 984

def thread_send_notice_queue()
  Thread.current[:_name] = "thread_send_notice_queue"
  loop do
    begin
      before_time = Time.now
      
      send_data_list = []
      
      pop_data = @queue_send_notice.pop
      send_data_list.push(pop_data) # Queueデータ待ち
      
      # queue_send_noticeに排他処理(sizeとpopの実行の間にpushが起きないように)
      @mutex_send_notice.timeout_sync(10, :queue_pop) do 
        @queue_send_notice.size.times do 
#            while(! @queue_send_notice.empty?) do       # 残りのデータもQueueに入れていく
          pop_data = @queue_send_notice.pop
          send_data_list.push(pop_data) # Queueデータ待ち
        end
      end
      
      send_data_sid_list = {}
      send_data_encode_type_list = {}
      send_data_list.each do |one_send_data| # sidごとに分ける
        sid          = one_send_data[0]
        send_obj     = one_send_data[1]
        encode_type  = one_send_data[2]
        send_data_sid_list[sid] = [] if ! send_data_sid_list.has_key?(sid)
        send_data_sid_list[sid].push(send_obj)
        send_data_encode_type_list[sid] = encode_type
      end
      
      # sidごとにデータをまとめ送り
      send_data_sid_list.each do |sid, one_send_data_list|
        sock = socket_list[sid]
        
        if !sock
          logger.info "thread_send_notice_queue:not found sid=#{sid} sock=#{sock.object_id}"
          next
        end
        
        if sock.closed?
          logger.info "thread_send_notice_queue:socket closed. sid=#{sid} sock=#{sock.object_id}"
          next
        end
        
        begin
          logger.debug "thread_send_notice_queue:dango_send_data:sid=#{sid} sock=#{sock.object_id} " + 
                       "#{one_send_data_list.collect{|d| d['_notice_name'] + ','}}"
          
          @mutex_sock[sock.object_id].timeout_sync(2, "send #{sock.object_id}") do
            dango_send_data(sock, one_send_data_list, :type=>send_data_encode_type_list[sid]) # データ送信
          end
          
        rescue DangoFrameworkConnectionException
          logger.info "thread_send_notice_queue:failed send. sid=#{sid} " + 
                      "sock=#{sock.object_id} #{$!.class}"
        rescue DangoFrameworkMutexTimeoutException
          @mutex_fail_count += 1 if @mutex_fail_count
          logger.warn "thread_send_notice_queue:failed send. sid=#{sid} " + 
                      "sock=#{sock.object_id} #{$!.class}"
        rescue Exception
          logger.error "thread_send_notice_queue:unknown failed. sid=#{sid} " + 
                       "sock=#{sock.object_id} #{error_message($!, 'u')}"
        end
      end
      
      send_sec = Time.now - before_time
      if send_sec > @send_receive_sleep_interval_sec
        logger.debug "thread_send_notice_queue:send_sec=#{send_sec}sec" 
      end
      
      sleep @send_receive_sleep_interval_sec # スリープ
      
    rescue DangoFrameworkMutexTimeoutException
      @mutex_fail_count += 1 if @mutex_fail_count
      logger.warn "ERROR:thread_send_notice_queue:DangoFrameworkMutexTimeoutException" + 
                  "#{error_message($!, 'u')}"
    rescue Exception
      logger.error "ERROR:thread_send_notice_queue:Exception:#{error_message($!, 'u')}"
    end
  end # loop end
end