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mod_statistics/prosodytop.lua @ 1492:8c4a2d85e8bf
mod_storage_multi: Multi-backend storage module (WIP)
author | Kim Alvefur <zash@zash.se> |
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date | Thu, 21 Aug 2014 23:14:55 +0200 |
parent | 1343:7dbde05b48a9 |
child | 1585:64f55bcab9f7 |
rev | line source |
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1 local curses = require "curses"; |
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2 local server = require "net.server_select"; |
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3 local timer = require "util.timer"; |
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4 |
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5 assert(curses.timeout, "Incorrect version of curses library. Try 'sudo luarocks install luaposix'"); |
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6 |
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7 local top = require "top"; |
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8 |
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9 function main() |
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10 local stdscr = curses.stdscr() -- it's a userdatum |
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11 --stdscr:clear(); |
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12 local view = top.new({ |
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13 stdscr = stdscr; |
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14 prosody = { up_since = os.time() }; |
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15 conn_list = {}; |
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16 }); |
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17 |
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18 timer.add_task(0.01, function () |
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19 local ch = stdscr:getch(); |
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20 if ch then |
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21 if stdscr:getch() == 410 then |
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22 view:resized(); |
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23 else |
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24 curses.ungetch(ch); |
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25 end |
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26 end |
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27 return 0.2; |
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28 end); |
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29 |
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30 timer.add_task(0, function () |
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31 view:draw(); |
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32 return 1; |
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33 end); |
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34 |
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35 --[[ |
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36 posix.signal(28, function () |
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37 table.insert(view.conn_list, { jid = "WINCH" }); |
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38 --view:draw(); |
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39 end); |
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40 ]] |
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41 |
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42 -- Fake socket object around stdin |
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43 local stdin = { |
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44 getfd = function () return 0; end; |
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45 dirty = function (self) return false; end; |
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46 settimeout = function () end; |
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47 send = function (_, d) return #d, 0; end; |
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48 close = function () end; |
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49 receive = function (_, patt) |
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50 local ch = stdscr:getch(); |
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51 if ch >= 0 and ch <=255 then |
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52 return string.char(ch); |
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53 elseif ch == 410 then |
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54 view:resized(); |
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55 else |
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56 table.insert(view.conn_list, { jid = tostring(ch) }); --FIXME |
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57 end |
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58 return ""; |
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59 end |
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60 }; |
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61 local function on_incoming(stdin, text) |
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62 -- TODO: Handle keypresses |
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63 if text:lower() == "q" then os.exit(); end |
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64 end |
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65 stdin = server.wrapclient(stdin, "stdin", 0, { |
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66 onincoming = on_incoming, ondisconnect = function () end |
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67 }, "*a"); |
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68 |
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69 local function handle_line(line) |
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70 local e = { |
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71 STAT = function (name) return function (value) |
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72 view:update_stat(name, value); |
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73 end end; |
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74 SESS = function (id) return function (jid) return function (stats) |
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75 view:update_session(id, jid, stats); |
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76 end end end; |
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77 }; |
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78 local chunk = assert(loadstring(line)); |
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79 setfenv(chunk, e); |
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80 chunk(); |
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81 end |
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82 |
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83 local stats_listener = {}; |
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84 |
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85 function stats_listener.onconnect(conn) |
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86 --stdscr:mvaddstr(6, 0, "CONNECTED"); |
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87 end |
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88 |
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89 local partial; |
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90 function stats_listener.onincoming(conn, data) |
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91 --print("DATA", data) |
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92 if partial then |
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93 partial, data = nil, partial..data; |
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94 end |
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95 if not data:match("\n") then |
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96 partial = data; |
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97 return; |
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98 end |
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99 local lastpos = 1; |
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100 for line, pos in data:gmatch("([^\n]+)\n()") do |
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101 lastpos = pos; |
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102 handle_line(line); |
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103 end |
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104 if lastpos == #data then |
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105 partial = nil; |
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106 else |
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107 partial = data:sub(lastpos); |
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108 end |
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109 end |
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110 |
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111 function stats_listener.ondisconnect(conn, err) |
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112 stdscr:mvaddstr(6, 0, "DISCONNECTED: "..(err or "unknown")); |
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113 end |
1343
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114 |
1072
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115 local conn = require "socket".tcp(); |
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116 assert(conn:connect("localhost", 5782)); |
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117 handler = server.wrapclient(conn, "localhost", 5279, stats_listener, "*a"); |
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118 end |
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119 |
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120 return { |
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121 run = function () |
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122 --os.setlocale("UTF-8", "all") |
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123 |
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124 curses.initscr() |
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125 curses.cbreak() |
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126 curses.echo(false) -- not noecho ! |
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127 curses.nl(false) -- not nonl ! |
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128 curses.timeout(0); |
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129 |
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130 local ok, err = pcall(main); |
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131 |
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132 --while true do stdscr:getch() end |
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133 --stdscr:endwin() |
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134 |
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135 if ok then |
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136 ok, err = xpcall(server.loop, debug.traceback); |
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137 end |
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138 |
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139 curses.endwin(); |
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140 |
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141 --stdscr:refresh(); |
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142 if not ok then |
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143 print(err); |
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144 end |
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145 |
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146 print"DONE" |
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147 end; |
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148 }; |