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init.lua @ 269:a15ede6b9ca1
doc/example_pep.lua: Reorder a bit to avoid re-sending presence multiple times when caps change.
author | Kim Alvefur <zash@zash.se> |
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date | Fri, 16 Dec 2011 22:09:37 +0100 |
parent | 259:05acf08d2e98 |
child | 279:7a0aa3d055f4 |
rev | line source |
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0 | 1 |
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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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"; |
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10 local logger = require "util.logger"; |
0 | 11 |
12 module("verse", package.seeall); | |
13 local verse = _M; | |
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14 _M.server = server; |
0 | 15 |
16 local stream = {}; | |
17 stream.__index = stream; | |
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18 stream_mt = stream; |
0 | 19 |
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20 verse.plugins = {}; |
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21 |
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22 function verse.init(...) |
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23 for i=1,select("#", ...) do |
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24 local ok = pcall(require, "verse."..select(i,...)); |
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25 if not ok then |
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26 error("Verse connection module not found: verse."..select(i,...)); |
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27 end |
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28 end |
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29 return verse; |
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30 end |
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31 |
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32 |
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33 local max_id = 0; |
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34 |
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35 function verse.new(logger, base) |
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36 local t = setmetatable(base or {}, stream); |
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37 max_id = max_id + 1; |
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38 t.id = tostring(max_id); |
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39 t.logger = logger or verse.new_logger("stream"..t.id); |
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40 t.events = events.new(); |
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41 t.plugins = {}; |
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42 t.verse = verse; |
44
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43 return t; |
0 | 44 end |
45 | |
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46 verse.add_task = require "util.timer".add_task; |
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47 |
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48 verse.logger = logger.init; -- COMPAT: Deprecated |
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verse: verse.logger() -> verse.new_logger()
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49 verse.new_logger = logger.init; |
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50 verse.log = verse.logger("verse"); |
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51 |
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52 local function format(format, ...) |
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53 local n, arg, maxn = 0, { ... }, select('#', ...); |
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54 return (format:gsub("%%(.)", function (c) if n <= maxn then n = n + 1; return tostring(arg[n]); end end)); |
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55 end |
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56 |
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57 function verse.set_log_handler(log_handler, levels) |
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58 levels = levels or { "debug", "info", "warn", "error" }; |
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59 logger.reset(); |
241
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60 local function _log_handler(name, level, message, ...) |
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61 return log_handler(name, level, format(message, ...)); |
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62 end |
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63 if log_handler then |
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64 for i, level in ipairs(levels) do |
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65 logger.add_level_sink(level, _log_handler); |
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66 end |
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67 end |
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68 end |
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69 |
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70 function _default_log_handler(name, level, message) |
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71 return io.stderr:write(name, "\t", level, "\t", message, "\n"); |
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72 end |
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73 verse.set_log_handler(_default_log_handler, { "error" }); |
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74 |
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75 local function error_handler(err) |
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76 verse.log("error", "Error: %s", err); |
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77 verse.log("error", "Traceback: %s", debug.traceback()); |
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78 end |
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79 |
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80 function verse.set_error_handler(new_error_handler) |
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81 error_handler = new_error_handler; |
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82 end |
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83 |
0 | 84 function verse.loop() |
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85 return xpcall(server.loop, error_handler); |
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86 end |
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87 |
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88 function verse.step() |
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89 return xpcall(server.step, error_handler); |
0 | 90 end |
91 | |
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92 function verse.quit() |
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93 return server.setquitting(true); |
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94 end |
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95 |
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96 function stream:connect(connect_host, connect_port) |
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97 connect_host = connect_host or "localhost"; |
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98 connect_port = tonumber(connect_port) or 5222; |
0 | 99 |
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100 -- Create and initiate connection |
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101 local conn = socket.tcp() |
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102 conn:settimeout(0); |
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103 local success, err = conn:connect(connect_host, connect_port); |
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104 |
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105 if not success and err ~= "timeout" then |
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106 self:warn("connect() to %s:%d failed: %s", connect_host, connect_port, err); |
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107 return self:event("disconnected", { reason = err }) or false, err; |
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108 end |
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109 |
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110 local conn = server.wrapclient(conn, connect_host, connect_port, new_listener(self), "*a"); |
0 | 111 if not conn then |
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112 self:warn("connection initialisation failed: %s", err); |
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113 return self:event("disconnected", { reason = err }) or false, err; |
0 | 114 end |
115 | |
116 self.conn = conn; | |
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117 self.send = function (stream, data) |
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118 self:event("outgoing", data); |
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119 data = tostring(data); |
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120 self:event("outgoing-raw", data); |
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121 return conn:write(data); |
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122 end; |
96
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123 return true; |
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124 end |
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125 |
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126 function stream:close() |
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127 if not self.conn then |
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128 verse.log("error", "Attempt to close disconnected connection - possibly a bug"); |
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129 return; |
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130 end |
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131 local on_disconnect = self.conn.disconnect(); |
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132 self.conn:close(); |
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133 on_disconnect(conn, reason); |
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134 end |
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135 |
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136 -- Logging functions |
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137 function stream:debug(...) |
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138 return self.logger("debug", ...); |
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139 end |
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140 |
258
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141 function stream:info(...) |
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142 return self.logger("info", ...); |
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143 end |
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144 |
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145 function stream:warn(...) |
238
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146 return self.logger("warn", ...); |
0 | 147 end |
148 | |
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149 function stream:error(...) |
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150 return self.logger("error", ...); |
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151 end |
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152 |
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153 -- Event handling |
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154 function stream:event(name, ...) |
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155 self:debug("Firing event: "..tostring(name)); |
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156 return self.events.fire_event(name, ...); |
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157 end |
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158 |
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159 function stream:hook(name, ...) |
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160 return self.events.add_handler(name, ...); |
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161 end |
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162 |
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163 function stream:unhook(name, handler) |
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164 return self.events.remove_handler(name, handler); |
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165 end |
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166 |
98
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167 function verse.eventable(object) |
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168 object.events = events.new(); |
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169 object.hook, object.unhook = stream.hook, stream.unhook; |
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170 local fire_event = object.events.fire_event; |
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171 function object:event(name, ...) |
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172 return fire_event(name, ...); |
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173 end |
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174 return object; |
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175 end |
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176 |
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177 function stream:add_plugin(name) |
173
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178 if self.plugins[name] then return true; end |
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179 if require("verse.plugins."..name) then |
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180 local ok, err = verse.plugins[name](self); |
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181 if ok ~= false then |
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182 self:debug("Loaded %s plugin", name); |
173
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183 self.plugins[name] = true; |
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184 else |
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185 self:warn("Failed to load %s plugin: %s", name, err); |
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186 end |
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187 end |
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188 return self; |
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189 end |
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190 |
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191 -- Listener factory |
0 | 192 function new_listener(stream) |
193 local conn_listener = {}; | |
194 | |
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195 function conn_listener.onconnect(conn) |
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196 stream.connected = true; |
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197 stream:event("connected"); |
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198 end |
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199 |
20
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200 function conn_listener.onincoming(conn, data) |
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201 stream:event("incoming-raw", data); |
0 | 202 end |
203 | |
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204 function conn_listener.ondisconnect(conn, err) |
0 | 205 stream.connected = false; |
206 stream:event("disconnected", { reason = err }); | |
207 end | |
55
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208 |
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209 function conn_listener.ondrain(conn) |
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210 stream:event("drained"); |
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211 end |
0 | 212 |
60
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213 function conn_listener.onstatus(conn, new_status) |
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|
214 stream:event("status", new_status); |
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215 end |
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216 |
0 | 217 return conn_listener; |
218 end | |
219 | |
220 return verse; |