Software / code / verse
Annotate
init.lua @ 191:e0664081654c
plugins.presence: Fix priority setting. (Thanks Florob)
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Mon, 07 Mar 2011 21:53:02 +0100 |
| parent | 173:3112a9e450ac |
| child | 205:cbcd45be11a8 |
| rev | line source |
|---|---|
| 0 | 1 |
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17
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verse: Include LuaRocks packages if we can
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2 -- Use LuaRocks if available |
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3 pcall(require, "luarocks.require"); |
| 0 | 4 |
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64
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verse: Load LuaSec if possible
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5 -- Load LuaSec if available |
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6 pcall(require, "ssl"); |
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7 |
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8 local server = require "net.server"; |
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9 local events = require "util.events"; |
| 0 | 10 |
| 11 module("verse", package.seeall); | |
| 12 local verse = _M; | |
| 13 | |
| 14 local stream = {}; | |
| 15 stream.__index = stream; | |
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16 stream_mt = stream; |
| 0 | 17 |
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verse: Support for loading plugins
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18 verse.plugins = {}; |
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19 |
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20 function verse.new(logger, base) |
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21 local t = setmetatable(base or {}, stream); |
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22 t.id = tostring(t):match("%x*$"); |
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23 t:set_logger(logger, true); |
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24 t.events = events.new(); |
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25 t.plugins = {}; |
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26 return t; |
| 0 | 27 end |
| 28 | |
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42
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29 verse.add_task = require "util.timer".add_task; |
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30 |
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verse: Add verse.log() to log a message using the default logger. Also add verse.set_error_handler() to, er, set an error handler.
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31 verse.logger = logger.init; |
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32 verse.log = verse.logger("verse"); |
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33 |
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34 function verse.set_logger(logger) |
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35 verse.log = logger; |
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36 server.setlogger(logger); |
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37 end |
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38 |
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39 function verse.filter_log(levels, logger) |
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40 local level_set = {}; |
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41 for _, level in ipairs(levels) do |
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42 level_set[level] = true; |
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43 end |
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44 return function (level, name, ...) |
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45 if level_set[level] then |
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46 return logger(level, name, ...); |
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47 end |
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48 end; |
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49 end |
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50 |
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125
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51 local function error_handler(err) |
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52 verse.log("error", "Error: %s", err); |
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53 verse.log("error", "Traceback: %s", debug.traceback()); |
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54 end |
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55 |
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56 function verse.set_error_handler(new_error_handler) |
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57 error_handler = new_error_handler; |
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58 end |
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59 |
| 0 | 60 function verse.loop() |
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61 return xpcall(server.loop, error_handler); |
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62 end |
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63 |
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64 function verse.step() |
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65 return xpcall(server.step, error_handler); |
| 0 | 66 end |
| 67 | |
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68 function verse.quit() |
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69 return server.setquitting(true); |
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70 end |
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71 |
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72 function stream:connect(connect_host, connect_port) |
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73 connect_host = connect_host or "localhost"; |
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74 connect_port = tonumber(connect_port) or 5222; |
| 0 | 75 |
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76 -- Create and initiate connection |
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77 local conn = socket.tcp() |
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78 conn:settimeout(0); |
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79 local success, err = conn:connect(connect_host, connect_port); |
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80 |
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81 if not success and err ~= "timeout" then |
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82 self:warn("connect() to %s:%d failed: %s", connect_host, connect_port, err); |
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83 return self:event("disconnected", { reason = err }) or false, err; |
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84 end |
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85 |
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86 local conn = server.wrapclient(conn, connect_host, connect_port, new_listener(self), "*a"); |
| 0 | 87 if not conn then |
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88 self:warn("connection initialisation failed: %s", err); |
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89 return self:event("disconnected", { reason = err }) or false, err; |
| 0 | 90 end |
| 91 | |
| 92 self.conn = conn; | |
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93 self.send = function (stream, data) |
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94 self:event("outgoing", data); |
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95 data = tostring(data); |
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96 self:event("outgoing-raw", data); |
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97 return conn:write(data); |
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98 end; |
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99 return true; |
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100 end |
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101 |
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102 function stream:close() |
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103 if not self.conn then |
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104 verse.log("error", "Attempt to close disconnected connection - possibly a bug"); |
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105 return; |
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106 end |
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107 local on_disconnect = self.conn.disconnect(); |
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108 self.conn:close(); |
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109 on_disconnect(conn, reason); |
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110 end |
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111 |
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112 -- Logging functions |
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113 function stream:debug(...) |
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114 if self.logger and self.log.debug then |
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115 return self.logger("debug", ...); |
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116 end |
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117 end |
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118 |
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119 function stream:warn(...) |
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120 if self.logger and self.log.warn then |
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121 return self.logger("warn", ...); |
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122 end |
| 0 | 123 end |
| 124 | |
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125 function stream:error(...) |
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126 if self.logger and self.log.error then |
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127 return self.logger("error", ...); |
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128 end |
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129 end |
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130 |
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131 function stream:set_logger(logger, levels) |
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132 local old_logger = self.logger; |
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133 if logger then |
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134 self.logger = logger; |
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135 end |
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136 if levels then |
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137 if levels == true then |
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138 levels = { "debug", "info", "warn", "error" }; |
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139 end |
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140 self.log = {}; |
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141 for _, level in ipairs(levels) do |
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142 self.log[level] = true; |
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143 end |
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144 end |
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145 return old_logger; |
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146 end |
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147 |
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148 function stream_mt:set_log_levels(levels) |
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149 self:set_logger(nil, levels); |
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150 end |
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151 |
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152 -- Event handling |
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153 function stream:event(name, ...) |
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154 self:debug("Firing event: "..tostring(name)); |
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155 return self.events.fire_event(name, ...); |
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156 end |
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157 |
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158 function stream:hook(name, ...) |
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159 return self.events.add_handler(name, ...); |
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160 end |
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161 |
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162 function stream:unhook(name, handler) |
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163 return self.events.remove_handler(name, handler); |
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164 end |
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165 |
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166 function verse.eventable(object) |
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167 object.events = events.new(); |
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168 object.hook, object.unhook = stream.hook, stream.unhook; |
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169 local fire_event = object.events.fire_event; |
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170 function object:event(name, ...) |
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171 return fire_event(name, ...); |
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172 end |
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173 return object; |
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174 end |
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175 |
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176 function stream:add_plugin(name) |
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177 if self.plugins[name] then return true; end |
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178 if require("verse.plugins."..name) then |
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179 local ok, err = verse.plugins[name](self); |
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180 if ok ~= false then |
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181 self:debug("Loaded %s plugin", name); |
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182 self.plugins[name] = true; |
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183 else |
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184 self:warn("Failed to load %s plugin: %s", name, err); |
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185 end |
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186 end |
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187 return self; |
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188 end |
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189 |
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190 -- Listener factory |
| 0 | 191 function new_listener(stream) |
| 192 local conn_listener = {}; | |
| 193 | |
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194 function conn_listener.onconnect(conn) |
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195 stream.connected = true; |
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196 stream:event("connected"); |
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197 end |
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198 |
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199 function conn_listener.onincoming(conn, data) |
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200 stream:event("incoming-raw", data); |
| 0 | 201 end |
| 202 | |
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203 function conn_listener.ondisconnect(conn, err) |
| 0 | 204 stream.connected = false; |
| 205 stream:event("disconnected", { reason = err }); | |
| 206 end | |
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207 |
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208 function conn_listener.ondrain(conn) |
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209 stream:event("drained"); |
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210 end |
| 0 | 211 |
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212 function conn_listener.onstatus(conn, new_status) |
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213 stream:event("status", new_status); |
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214 end |
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215 |
| 0 | 216 return conn_listener; |
| 217 end | |
| 218 | |
| 219 | |
| 220 local log = require "util.logger".init("verse"); | |
| 221 | |
| 222 return verse; |
