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annotate mod_statistics/prosodytop.lib.lua @ 4382:0d6b69777bc1

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mod_http_admin_api: port to use new mod_groups_internal module Matthew Wild contributed much of the code, so I can only take partial credit.
author Jonas Schäfer <jonas@wielicki.name>
date Mon, 25 Jan 2021 18:33:49 +0100
parents 1962c94e2203
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 local envload = require "util.envload".envload;
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5
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6 assert(curses.timeout, "Incorrect version of curses library. Try 'sudo luarocks install luaposix'");
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7
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8 local top = module:require "top";
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9
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10 function main()
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11 local stdscr = curses.stdscr() -- it's a userdatum
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12 --stdscr:clear();
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13 local view = top.new({
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14 stdscr = stdscr;
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15 prosody = { up_since = os.time() };
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16 conn_list = {};
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17 });
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19 timer.add_task(0.01, function ()
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20 local ch = stdscr:getch();
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21 if ch then
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22 if stdscr:getch() == 410 then
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23 view:resized();
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24 else
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25 curses.ungetch(ch);
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26 end
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27 end
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28 return 0.2;
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29 end);
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31 timer.add_task(0, function ()
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32 view:draw();
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33 return 1;
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34 end);
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35
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36 --[[
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37 posix.signal(28, function ()
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38 table.insert(view.conn_list, { jid = "WINCH" });
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39 --view:draw();
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40 end);
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41 ]]
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43 -- Fake socket object around stdin
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44 local stdin = {
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45 getfd = function () return 0; end;
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46 dirty = function (self) return false; end;
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47 settimeout = function () end;
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48 send = function (_, d) return #d, 0; end;
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49 close = function () end;
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50 receive = function (_, patt)
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51 local ch = stdscr:getch();
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52 if ch >= 0 and ch <=255 then
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53 return string.char(ch);
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54 elseif ch == 410 then
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55 view:resized();
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56 else
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57 table.insert(view.conn_list, { jid = tostring(ch) }); --FIXME
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58 end
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59 return "";
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60 end
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61 };
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62 local function on_incoming(stdin, text)
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63 -- TODO: Handle keypresses
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64 if text:lower() == "q" then os.exit(); end
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65 end
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66 stdin = server.wrapclient(stdin, "stdin", 0, {
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67 onincoming = on_incoming, ondisconnect = function () end
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68 }, "*a");
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69
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70 local function handle_line(line)
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71 local e = {
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72 STAT = function (name) return function (value)
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73 view:update_stat(name, value);
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74 end end;
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75 SESS = function (id) return function (jid) return function (stats)
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76 view:update_session(id, jid, stats);
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77 end end end;
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78 };
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79 local chunk = assert(envload(line, "=prosodytop", 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 data = partial..data;
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93 local lastpos = 1;
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94 for line, pos in data:gmatch("([^\n]+)\n()") do
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95 lastpos = pos;
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96 handle_line(line);
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97 end
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98 partial = data:sub(lastpos);
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99 end
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100
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101 function stats_listener.ondisconnect(conn, err)
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102 stdscr:mvaddstr(6, 0, "DISCONNECTED: "..(err or "unknown"));
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103 end
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104
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105 local conn = require "socket".tcp();
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106 assert(conn:connect("localhost", 5782));
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107 handler = server.wrapclient(conn, "localhost", 5782, stats_listener, "*a");
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108 end
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109
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110 return {
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111 run = function ()
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112 --os.setlocale("UTF-8", "all")
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113
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114 curses.initscr()
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115 curses.cbreak()
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116 curses.echo(false) -- not noecho !
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117 curses.nl(false) -- not nonl !
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118 curses.timeout(0);
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119
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120 local ok, err = pcall(main);
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121
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122 --while true do stdscr:getch() end
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123 --stdscr:endwin()
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124
4dbdb1b465e8 mod_statistics: Initial version, and a rough 'prosodyctl mod_statistics top'
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125 if ok then
4dbdb1b465e8 mod_statistics: Initial version, and a rough 'prosodyctl mod_statistics top'
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126 ok, err = xpcall(server.loop, debug.traceback);
4dbdb1b465e8 mod_statistics: Initial version, and a rough 'prosodyctl mod_statistics top'
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parents:
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127 end
4dbdb1b465e8 mod_statistics: Initial version, and a rough 'prosodyctl mod_statistics top'
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parents:
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128
4dbdb1b465e8 mod_statistics: Initial version, and a rough 'prosodyctl mod_statistics top'
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129 curses.endwin();
4dbdb1b465e8 mod_statistics: Initial version, and a rough 'prosodyctl mod_statistics top'
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parents:
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130
4dbdb1b465e8 mod_statistics: Initial version, and a rough 'prosodyctl mod_statistics top'
Matthew Wild <mwild1@gmail.com>
parents:
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131 --stdscr:refresh();
4dbdb1b465e8 mod_statistics: Initial version, and a rough 'prosodyctl mod_statistics top'
Matthew Wild <mwild1@gmail.com>
parents:
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132 if not ok then
4dbdb1b465e8 mod_statistics: Initial version, and a rough 'prosodyctl mod_statistics top'
Matthew Wild <mwild1@gmail.com>
parents:
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133 print(err);
4dbdb1b465e8 mod_statistics: Initial version, and a rough 'prosodyctl mod_statistics top'
Matthew Wild <mwild1@gmail.com>
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134 end
4dbdb1b465e8 mod_statistics: Initial version, and a rough 'prosodyctl mod_statistics top'
Matthew Wild <mwild1@gmail.com>
parents:
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135
4dbdb1b465e8 mod_statistics: Initial version, and a rough 'prosodyctl mod_statistics top'
Matthew Wild <mwild1@gmail.com>
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136 print"DONE"
4dbdb1b465e8 mod_statistics: Initial version, and a rough 'prosodyctl mod_statistics top'
Matthew Wild <mwild1@gmail.com>
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137 end;
4dbdb1b465e8 mod_statistics: Initial version, and a rough 'prosodyctl mod_statistics top'
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138 };