2 -- Copyright (C) 2008-2010 Matthew Wild
3 -- Copyright (C) 2008-2010 Waqas Hussain
5 -- This project is MIT/X11 licensed. Please see the
6 -- COPYING file in the source package for more information.
9 local debug = require "util.debug";
11 module("helpers", package.seeall);
13 -- Helper functions for debugging
15 local log = require "util.logger".init("util.debug");
17 function log_host_events(host)
18 return log_events(prosody.hosts[host].events, host);
21 function revert_log_host_events(host)
22 return revert_log_events(prosody.hosts[host].events);
25 function log_events(events, name, logger)
26 local f = events.fire_event;
28 error("Object does not appear to be a util.events object");
30 logger = logger or log;
31 name = name or tostring(events);
32 function events.fire_event(event, ...)
33 logger("debug", "%s firing event: %s", name, event);
36 events[events.fire_event] = f;
40 function revert_log_events(events)
41 events.fire_event, events[events.fire_event] = events[events.fire_event], nil; -- :))
44 function show_events(events, specific_event)
45 local event_handlers = events._handlers;
46 local events_array = {};
47 local event_handler_arrays = {};
48 for event in pairs(events._event_map) do
49 local handlers = event_handlers[event];
50 if handlers and (event == specific_event or not specific_event) then
51 table.insert(events_array, event);
52 local handler_strings = {};
53 for i, handler in ipairs(handlers) do
54 local upvals = debug.string_from_var_table(debug.get_upvalues_table(handler));
55 handler_strings[i] = " "..i..": "..tostring(handler)..(upvals and ("\n "..upvals) or "");
57 event_handler_arrays[event] = handler_strings;
60 table.sort(events_array);
62 while i <= #events_array do
63 local handlers = event_handler_arrays[events_array[i]];
64 for j=#handlers, 1, -1 do
65 table.insert(events_array, i+1, handlers[j]);
67 if i > 1 then events_array[i] = "\n"..events_array[i]; end
70 return table.concat(events_array, "\n");
73 function get_upvalue(f, get_name)
74 local i, name, value = 0;
77 name, value = debug.getupvalue(f, i);
78 until name == get_name or name == nil;