Thu, 06 May 2010 10:28:13 +0100
verse: Add "drained" event to signal when send buffer is empty (new server.lua feature)
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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 | local server = require "net.server"; |
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6 | local events = require "util.events"; |
0 | 7 | |
8 | module("verse", package.seeall); | |
9 | local verse = _M; | |
10 | ||
11 | local stream = {}; | |
12 | stream.__index = stream; | |
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13 | stream_mt = stream; |
0 | 14 | |
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15 | verse.plugins = {}; |
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16 | |
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17 | function verse.new(logger, base) |
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18 | local t = setmetatable(base or {}, stream); |
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19 | t.id = tostring(t):match("%x*$"); |
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20 | t:set_logger(logger, true); |
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21 | t.events = events.new(); |
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22 | return t; |
0 | 23 | end |
24 | ||
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25 | verse.add_task = require "util.timer".add_task; |
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26 | |
0 | 27 | function verse.loop() |
28 | return server.loop(); | |
29 | end | |
30 | ||
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31 | function verse.quit() |
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32 | return server.setquitting(true); |
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33 | end |
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34 | |
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35 | verse.logger = logger.init; |
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36 | |
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37 | function verse.set_logger(logger) |
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38 | server.setlogger(logger); |
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39 | end |
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40 | |
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41 | function stream:connect(connect_host, connect_port) |
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42 | connect_host = connect_host or "localhost"; |
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43 | connect_port = tonumber(connect_port) or 5222; |
0 | 44 | |
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45 | -- Create and initiate connection |
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46 | local conn = socket.tcp() |
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47 | conn:settimeout(0); |
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48 | local success, err = conn:connect(connect_host, connect_port); |
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49 | |
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50 | if not success and err ~= "timeout" then |
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51 | self:warn("connect() to %s:%d failed: %s", connect_host, connect_port, err); |
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52 | return false, err; |
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53 | end |
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54 | |
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55 | --local conn, err = server.addclient(self.connect_host or self.host, tonumber(self.connect_port) or 5222, new_listener(self), "*a"); |
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56 | local conn = server.wrapclient(conn, connect_host, connect_port, new_listener(self), "*a"); --, hosts[from_host].ssl_ctx, false ); |
0 | 57 | if not conn then |
58 | return nil, err; | |
59 | end | |
60 | ||
61 | self.conn = conn; | |
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62 | local w, t = conn.write, tostring; |
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63 | self.send = function (_, data) return w(conn, t(data)); end |
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64 | end |
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65 | |
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66 | -- Logging functions |
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67 | function stream:debug(...) |
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68 | if self.logger and self.log.debug then |
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69 | return self.logger("debug", ...); |
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70 | end |
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71 | end |
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72 | |
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73 | function stream:warn(...) |
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74 | if self.logger and self.log.warn then |
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75 | return self.logger("warn", ...); |
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76 | end |
0 | 77 | end |
78 | ||
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79 | function stream:error(...) |
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80 | if self.logger and self.log.error then |
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81 | return self.logger("error", ...); |
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82 | end |
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83 | end |
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84 | |
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85 | function stream:set_logger(logger, levels) |
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86 | local old_logger = self.logger; |
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87 | if logger then |
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88 | self.logger = logger; |
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89 | end |
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90 | if levels then |
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91 | if levels == true then |
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92 | levels = { "debug", "info", "warn", "error" }; |
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93 | end |
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94 | self.log = {}; |
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95 | for _, level in ipairs(levels) do |
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96 | self.log[level] = true; |
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97 | end |
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98 | end |
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99 | return old_logger; |
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100 | end |
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101 | |
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102 | -- Event handling |
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103 | function stream:event(name, ...) |
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104 | self:debug("Firing event: "..tostring(name)); |
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105 | return self.events.fire_event(name, ...); |
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106 | end |
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107 | |
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108 | function stream:hook(name, ...) |
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109 | return self.events.add_handler(name, ...); |
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110 | end |
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111 | |
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112 | function stream:unhook(name, handler) |
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113 | return self.events.remove_handler(name, handler); |
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114 | end |
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115 | |
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116 | function stream:add_plugin(name) |
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117 | if require("verse.plugins."..name) then |
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118 | local ok, err = verse.plugins[name](self); |
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119 | if ok then |
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120 | self:debug("Loaded %s plugin", name); |
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121 | else |
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122 | self:warn("Failed to load %s plugin: %s", name, err); |
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123 | end |
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124 | end |
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125 | return self; |
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126 | end |
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127 | |
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128 | -- Listener factory |
0 | 129 | function new_listener(stream) |
130 | local conn_listener = {}; | |
131 | ||
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132 | function conn_listener.onconnect(conn) |
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133 | stream.connected = true; |
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134 | stream.send = function (stream, data) stream:debug("Sending data: "..tostring(data)); return conn:write(tostring(data)); end; |
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135 | stream:event("connected"); |
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136 | end |
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137 | |
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138 | function conn_listener.onincoming(conn, data) |
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139 | stream:event("incoming-raw", data); |
0 | 140 | end |
141 | ||
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142 | function conn_listener.ondisconnect(conn, err) |
0 | 143 | stream.connected = false; |
144 | stream:event("disconnected", { reason = err }); | |
145 | end | |
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146 | |
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147 | function conn_listener.ondrain(conn) |
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148 | stream:event("drained"); |
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149 | end |
0 | 150 | |
151 | return conn_listener; | |
152 | end | |
153 | ||
154 | ||
155 | local log = require "util.logger".init("verse"); | |
156 | ||
157 | return verse; |