annotate Todo @ 375:34642bc65c21

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author kono
date Wed, 22 Oct 2008 02:59:08 +0900
parents 2b00e10394fd
children 1fca50ce3508
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373
ab4405cd3351 looks like we are done. Wait for further test.
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1 Wed Oct 22 02:31:27 JST 2008
ab4405cd3351 looks like we are done. Wait for further test.
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2
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3 Todo: (kono)
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4 editorの中で、next.getEID() とか next.setQuit2() とかやっているのは、
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5 ditributed の場合は、うまく動かない。だまって、forward されるはず
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6 だが... やっぱり、dummy editor ではなくて、専用のものを作らないと
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7 だめ?
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8 Done: Wed Oct 22 02:56:30 JST 2008
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9 ちょっとあれだが、next がdirecgtでない場合を判断して、向こうのforwarder側で
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10 処理するのが簡単らしい。
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11
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12 Todo: (kono)
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13 Select後のupdateを流してないので、他の人が、そのsessionがselectされたのを
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14 知り得ない。なので、複数のjoin_ackがありえる。
373
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15
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16 Mon Oct 20 16:38:39 JST 2008
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17
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18 Todo: (kono)
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19 routing で put の時には、上に上がるだけで良いのだが、下に行くときには、
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20 routing table を持って行く必要がある。ということは、session list を
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21 つける必要があるということだね。でも、tree だから、
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22 自分の直下んあるもの以外は、上に送る
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23 で良いのか...
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24 Done: Wed Oct 22 02:56:30 JST 2008
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25
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26 Todo: (kono)
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27 put/put_ack は、udpateを兼ねる必要があるらしい。そうでないと、session list
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28 が広まらない。
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29 Done: Wed Oct 22 02:56:30 JST 2008
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30 session list 中のlocalでないeditorをselectするした場合は、sessionManager
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31 の方に再送してやれば良い。
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32 Done: Wed Oct 22 02:56:30 JST 2008
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33 SELECT0 を作成
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34
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35 Mon Oct 20 10:22:02 JST 2008
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36
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37 Todo: (kono)
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38 Inter-session での、editor の削除、master でないeditorのclose/quit。
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39
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40 Sun Oct 19 21:23:27 JST 2008
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41
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42 Todo: IPv6 対応 (kono)
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43 getAddress で取れたアドレスには、すべて、select/connect する
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44 必要がある。localhost な hostname よりも大域的なhostnameを
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45 優先した方が良い。
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46
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47 Todo: dispatch先のEditorの作成 (kono)
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48
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49 Session は select 時に、channelを持つeditorが登録される。
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50 外から来た場合は、新しくeditor を作って、それをsession
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51 に登録する必要がある。SessionManagerの入口のforwarderを
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52 session に登録してしまうと、Sessionが一つの時にしか動かない。
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53
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54 put_ack は、putの時にすぐに出してしまって構わない。select_ack
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55 が廻るので、その時にput_ackを出しても良いが...
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56 Done: Sun Oct 19 23:10:52 JST 2008
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57
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58 Todo: (kono)
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59 複数のsessionのテストを作成する
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60
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61 Sat Oct 18 20:03:10 JST 2008
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62
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63 Todo: Routing Table (kono)
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64
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65 Routing Table (Session, Editor)を作るには、上下双方向の通信が必要。
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66 SessionID を master が作ると、一旦、multi cast した後、もう一度、
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67 上に上げる必要がある。Select の時には、editor から上に上がるので、
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68 その時に構築すれば良い。SessionManagerIDと組み合わせれば、eid/sid
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69 ともに、下から構築出来る。
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70
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71 自分が出したjoin/put/sm_joinに対するackかどうかを見るために、
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72 SessionManagerID は、どうせ必要。この方法だと、routing table
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73 もSessionManagerIDに対してだけ構築すれば良い。とは、ならない。
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74 Session は、複数のSessionManagerにまたがるので。
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75
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76 join_ack が来た時には、そのeditorのrouting tableは完成している、
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77 あるいは、select が完成させるjoin_ackに追い付くことはない。
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78 put_ack も同様。
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79
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80 select は、editorへのpathを探しながら、session routing table
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81 を構築する。もっとも高位のsession managerへのrouting table
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82 は、これで作成される。ここからjoinしたeditorまでのpathは、
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83 そのeditor単一のpathだが、routing table に登録される。
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84 select は、session ringに到達した時点で update を流す。
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85 update は、木をさかのぼりrouting tableを構築する。
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86 これで上方向のroutingは確定する。update_ackにより、
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87 下方向のsesionn routing tableが確定する。
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88 Done: Sun Oct 19 21:29:08 JST 2008
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89
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90 Wed Oct 15 13:33:58 JST 2008
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91
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92 Todo: (kono)
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93
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94 Session List を渡すタイミング
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95
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96 SM_JOIN_ACK (必須...)
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97 SM_JOIN では、Session List は0なはず。
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98 JOIN,PUT は、multi-cast されるので、その時に登録すれば良い。
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99 その時に、Session List を送っても良いが...
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100 SELECTは、joinするeditorからしか出ない。Session List は必要ない。
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101 SELECT_ACK は、UPDATEが出るので必要ない
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102 UPDATE,UPDATE_ACK には、Session List が付く
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103 GATHER,GATHER_ACK には、Session List が付く
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104
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105 Session List では、editor,session に対するroutingも作成する、必要
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106 な情報を含む必要がある。
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107 eid, EditorName, FileName, sid, SessionManagerName
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108 SessionManagerName が入っていれば、editor, session が
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109 Session Listが来た方向にいるということになる。
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110
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111 SessionManagerName は、network 上でuniqueな必要がある。
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112 sm_join した時に、そのchannelの名前が大域的に確定する。
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113 sm_join は複数行なわれないから、名前が変わることはない。
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114 sm_join された側の名前も、接続されて初めて確定する。
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115 複数 sm_join されることはあるが、その場合は最初のもの
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116 を使う。ということは、localにsm_join された後、大域的
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117 に接続される場合があるってことか。ってことは、やっぱり、
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118 session manager id を配布するべきだってことね。で、
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119 SMの名前はあくまでも補助的に使う。
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120 Done: Sun Oct 19 21:29:08 JST 2008
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121
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122 Todo: (kono)
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123 UPDATEの情報によって削除も行なう。delete entry が必要。
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124
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125 Todo: (kono)
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126 Routing Table
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127 <eid, channel>
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128 <sid, channel>
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129 null は、local。channel==parent なら、自分の下にはいない。
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130 Done: Sun Oct 19 21:29:08 JST 2008
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131
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132 Tue Oct 14 06:02:37 JST 2008
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133
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134 Todo: (kono)
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135 取りあえず、sm_join()からか。次は、join(),put()。そして、
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136 update()。select()。
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137 Done: Sun Oct 19 21:29:08 JST 2008
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138
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139 Todo: (kono)
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140 最後に、gather()。
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141
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142 Todo: (kono)
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143 Select用に、routing tableが必要らしい。session ringへの
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144 方向を表すtableを、put, update, update_ack時に作成する。
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145 Done: Sun Oct 19 21:29:08 JST 2008
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146
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147 Mon Oct 13 12:34:39 JST 2008
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148
344
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149 Todo: (kono)
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150 sm_join時のloop の検出。sm_joinを受け取った時には、sm接続にloopが
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151 あるかどうかを調べる必要がある。これのテストも必要。
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152 host_aからのsm_joinを受け取ったら、sm_join(host_a)を親に送る。
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153 host_aがsm_join(host_a)を受け取ったら、それはloop。親がsm_join
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154 を受け取れば、そこからsm_join_ackを流して終了。
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155 Done: Sun Oct 19 21:29:08 JST 2008
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156
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157 Note: (kono)
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158 複数のsession managerにsm_joinする場合もある。その場合は、
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159 親に代わりにsm_joinしてもらう? 親がreachableだとは限りませんが。
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160 禁止してもいいけど...
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161
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162 sessionを持っているsm同士がsm_joinするとsidを付け直す必要が
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163 ある。これは大変だなぁ。これも禁止? join/select待ちは許される。
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164 まぁ、新しくsmを上げれば良いだけなんだが、内部的になんとか出来ないの?
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165 面倒なので、取りあえず禁止で良いです。もしかして、updateって、
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166 それよう?
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167
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168 sidのnatという手はあるのか。かなり複雑だけど。それだと複数の親が
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169 いてもだいじょうぶか? ちゃんと書き換え出来るなら動くっぽい。あとで
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170 入れることも可能か。
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171
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172 selectが以外に難しい。sessionとjoinして来たeditorを見つけない
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173 といけない。しかも、最短距離で。見つけるだけなら簡単だが... 取りあえず、
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174 select は、join したsession managerでしか出来ないということに
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175 する。そうでないと、joinしたeditorを探す必要があり、全部を見るか、
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176 routing tableを作る必要がある。後者でも良いが。
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177
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178 Note: (kono)
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179 Session間の通信は、木を作って、自分の親に送り、親がack/updateをmulti cast
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180 すれば良い。sm_join した時に、どちらが親になるかはどうやって決める? 繋げた先が
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181 親ってのが簡単。親がいないのがmasterとなる。親が死んだら自分が親。親が死んで、
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182 sessionがmasterを失った時は? loop の検出も必要。
343
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183 再接続は可能? 可能だが、再put/join/selectする必要がある。
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184 put は、親まで上がってsidを決定しなければならない、その後、put_ackを出せる。
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185 joinは、localでの処理で問題ないが、join_ackはselectが終わってから出る必要がある。
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186 selectは session owner に行き着く必要がある。session がconnectionを
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187 持っているとは限らない。親がselectする方が自然か?
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188 put_ack/join_ack/select_ackは、updateを見てでの処理で良い? 対象イベント
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189 が明示されていた方が楽だが...
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190 この方法だと、session managerはidは持っていないが、木構造の中でuniqeな
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191 位置を持つ。
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192 (前の資料があれば良いのに...)
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193
341
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194 Mon Oct 13 02:57:45 JST 2008
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195 Todo: (kono)
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196 InterManagerのquit中のsessionへのjoinの扱い。(putは来ないがjoinはありえる)。
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197 UPDATEで、sessionをlockしてからquitするか?
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198 TestGUIで、selectする前にEditor0がquitしちゃう場合もある。
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199
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200 Todo: (kono)
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201 SessionManager間のプロトコルの図が、どこにもない。あんなに苦労して考えたのに。
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202 また、自分で書けってか。
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203  SessionManager SM_JOINと、masterの決定
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204  put/selectの生成、masterによるsession id の決定
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205 updateによるsessionの共有
345
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206 Done:Mon Oct 13 19:02:42 JST 2008 (kono)
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207
338
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208 Sun Oct 12 19:12:20 JST 2008
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209
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210 Todo: (kono)
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211 DELETE時のundoのための文字列は、SM/Editor間でだけ必要。Editorから戻って来た
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212 コマンドをSM側で最新にする必要がある。外に出す時には使わないので消して良い。
339
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213 Done: 戻って来た時に、unMergedListに入れているらしい
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214
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215 Todo: (kono)
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216 new String(hoge)。Javaの文字列は変更不可能なので、こんな
339
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217 ことをする意味はない。
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218 Done:
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219
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220 Todo: (kono)
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221 PUT の時に、master session managerまで行って、session番号を確定する
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222 必要がある。それまでは、PUT_ACKを出してはならない。
361
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223 Done: Sun Oct 19 21:29:08 JST 2008
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224 session manager IDを使ってuniqueにしたので、不要になった。
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225 即座に PUT_ACKを出して構わない。
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226
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227 Todo: (kono)
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228 SM_JOIN時にmaster session managerを決定するプロトコルを実装する必要が
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229 ある。たぶん、UPDATEだと思うが...
361
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230 Done: Sun Oct 19 21:29:08 JST 2008
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231 木の根をmasterとして、変更しない。
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232
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233 Todo: (kono)
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234 外から、きたSession Listを、ただしく自分に反映する。
361
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235 Done: Sun Oct 19 21:29:08 JST 2008
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236
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237 Todo: (kono)
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238 test.ServerSample.java はあるが、ClientSample.java がない。
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239
341
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240 Todo: (kono)
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241 SYNC出すコードをまだ入れてない。
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242
334
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243 Sun Oct 12 10:33:36 JST 2008
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244
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245 Todo:
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246 END_MERGEが繰り返し出てしまう(kono)
361
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247 Done: Sun Oct 19 21:29:08 JST 2008
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248 直ったかな?
334
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249
330
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250 Sat Oct 11 22:28:49 JST 2008
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251
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252 Todo:
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253 Session Manager をまたがった接続のテスト (kono)
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254 Done: Sun Oct 12 19:18:23 JST 2008
330
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255
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256 Todo:
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257 Optimizerを使った場合のテスト (kono)
334
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258 行番号0があるとだめらしい。
330
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259
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260 Todo:
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261 manager.remove(editor) の動作のタイミング、 channel closeの扱い
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262 たぶん、quit2のackで、殺すのが正しいと思う。(kono)
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263 Done: Mon Oct 13 02:57:45 JST 2008
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264
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265
322
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266 Fri Oct 10 15:24:42 JST 2008
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267 sid は大域的にuniqueにする必要がある。UPDATEで新しくsessionを作ったことを
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268 通知して、Masterが新しいsidを決定し、UPDATE_ACKで他のSessionManagerに知らせる(kono)
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269 Done: Sun Oct 19 21:29:08 JST 2008
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270 put時に、そのsession managerでsession manager idを使って、
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271 uniqueなsidを作成する。put/join/ackで他のSessionManagerに知らせる。
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272
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273 Mon Oct 6 16:39:57 JST 2008
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274
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275 Todo: translator にある5つのqueueが、Editor にもある。merge のアルゴリズムの
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276 実装を見直す必要がある。(kono)
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277 Done:Sat Oct 11 22:28:49 JST 2008
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278
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279 Todo:
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280 SessionManager の向うにあるeditorにREPCommandを送るコードがない。Editor 扱いしても良いが、Editor が複雑すぎるので、それは好ましくない。Editor に nextChannelを持たせるのが良いか? (kono)
323
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281 Done: Forwarder を作った
315
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282
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283 Todo:
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284 SessionManger のeditor がmerge 中のeditor commandをblockするのは良いが、
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285 sessionManger コマンドをblockされるのは困る。(kono)
330
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286 Done: Sat Oct 11 22:28:49 JST 2008
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287
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288 Wed Oct 1 20:58:51 JST 2008
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289
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290 Todo: Session ring 廻るcommand packetは、基本的に書き換えられるべきではない
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291   eid, seq の組でuniqueになる。現状では、そここで書き換えが起きているらしい。
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292 eid = -1 (Session Manager), eid = -2 (MergeCommand) あたりが
315
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293 特殊らしい。 でも、実際には生成されてないっぽい。(kono)
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294 Done: Mon Oct 6 16:40:14 JST 2008 (kono)
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295
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296 Todo: SessionManagerのprotocolのswitch文で、そこら中でgetEditor/getSessionが
315
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297   呼ばれている。これらは、for loopで探しているので、繰り返し行うのは変。(kono)
305
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298
315
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299 Todo: REPCMD_INSERTが止まらない... (kono)
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300 Done: Mon Oct 6 16:40:38 JST 2008 (kono)
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301
315
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302 Todo: SessionMnager のmessageをREPLogger baseに書き換える。 (kono)
305
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303
300
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304 Wed Oct 1 15:35:44 JST 2008
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305
315
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306 Todo: SessionManager 複数のコマンドをまとめてeditorに送るとdead lockする
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307 可能性がある。送信キューを作り、select loop しながら、ひとつずつコマンドを
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308 送信する (kono)
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309 Done: (kono)
300
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310
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311 Todo: Editor quit, quit2 の実装
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312   quit2 では、自分の送信したコマンドが戻ってくるまで待つ必要がある。
315
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313   editor 毎の状態となる。(kono)
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314 Done: (kono)
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315