prosody
eda2556aa139
util/helpers.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

util/helpers.lua @ 5914:eda2556aa139

Merge 0.10->trunk
author Kim Alvefur <zash@zash.se>
date Mon, 11 Nov 2013 23:28:53 +0100
parent 5776:bd0ff8ae98a8
child 6777:5de6b93d0190
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1964
101a8df23b29 util.helpers: Add copyright header
Matthew Wild <mwild1@gmail.com>
parents: 1959
diff changeset
1 -- Prosody IM
2923
b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
parents: 1964
diff changeset
2 -- Copyright (C) 2008-2010 Matthew Wild
b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
parents: 1964
diff changeset
3 -- Copyright (C) 2008-2010 Waqas Hussain
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 5415
diff changeset
4 --
1964
101a8df23b29 util.helpers: Add copyright header
Matthew Wild <mwild1@gmail.com>
parents: 1959
diff changeset
5 -- This project is MIT/X11 licensed. Please see the
101a8df23b29 util.helpers: Add copyright header
Matthew Wild <mwild1@gmail.com>
parents: 1959
diff changeset
6 -- COPYING file in the source package for more information.
101a8df23b29 util.helpers: Add copyright header
Matthew Wild <mwild1@gmail.com>
parents: 1959
diff changeset
7 --
1531
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
8
4681
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
9 local debug = require "util.debug";
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
10
1531
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
11 module("helpers", package.seeall);
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
12
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
13 -- Helper functions for debugging
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
14
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
15 local log = require "util.logger".init("util.debug");
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
16
5415
9e7aa5b47bdf util.helpers: Helper helpers to log host events
Matthew Wild <mwild1@gmail.com>
parents: 4705
diff changeset
17 function log_host_events(host)
9e7aa5b47bdf util.helpers: Helper helpers to log host events
Matthew Wild <mwild1@gmail.com>
parents: 4705
diff changeset
18 return log_events(prosody.hosts[host].events, host);
9e7aa5b47bdf util.helpers: Helper helpers to log host events
Matthew Wild <mwild1@gmail.com>
parents: 4705
diff changeset
19 end
9e7aa5b47bdf util.helpers: Helper helpers to log host events
Matthew Wild <mwild1@gmail.com>
parents: 4705
diff changeset
20
9e7aa5b47bdf util.helpers: Helper helpers to log host events
Matthew Wild <mwild1@gmail.com>
parents: 4705
diff changeset
21 function revert_log_host_events(host)
9e7aa5b47bdf util.helpers: Helper helpers to log host events
Matthew Wild <mwild1@gmail.com>
parents: 4705
diff changeset
22 return revert_log_events(prosody.hosts[host].events);
9e7aa5b47bdf util.helpers: Helper helpers to log host events
Matthew Wild <mwild1@gmail.com>
parents: 4705
diff changeset
23 end
9e7aa5b47bdf util.helpers: Helper helpers to log host events
Matthew Wild <mwild1@gmail.com>
parents: 4705
diff changeset
24
1531
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
25 function log_events(events, name, logger)
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
26 local f = events.fire_event;
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
27 if not f then
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
28 error("Object does not appear to be a util.events object");
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
29 end
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
30 logger = logger or log;
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
31 name = name or tostring(events);
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
32 function events.fire_event(event, ...)
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
33 logger("debug", "%s firing event: %s", name, event);
1795
0e933d6f2c31 util.helpers: It would be a good idea to fire an event when we say we are
Matthew Wild <mwild1@gmail.com>
parents: 1531
diff changeset
34 return f(event, ...);
1531
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
35 end
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
36 events[events.fire_event] = f;
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
37 return events;
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
38 end
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
39
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
40 function revert_log_events(events)
4536
285450536ec0 util.helpers: After nearly 'fixing' this code, I conclude it instead only deserves a bigger smile
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
41 events.fire_event, events[events.fire_event] = events[events.fire_event], nil; -- :))
1531
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
42 end
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
43
4705
447f5a94792d util.helpers: show_events(): Make more robust, and allow filtering results to a specific event
Matthew Wild <mwild1@gmail.com>
parents: 4681
diff changeset
44 function show_events(events, specific_event)
4681
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
45 local event_handlers = events._handlers;
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
46 local events_array = {};
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
47 local event_handler_arrays = {};
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
48 for event in pairs(events._event_map) do
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
49 local handlers = event_handlers[event];
4705
447f5a94792d util.helpers: show_events(): Make more robust, and allow filtering results to a specific event
Matthew Wild <mwild1@gmail.com>
parents: 4681
diff changeset
50 if handlers and (event == specific_event or not specific_event) then
447f5a94792d util.helpers: show_events(): Make more robust, and allow filtering results to a specific event
Matthew Wild <mwild1@gmail.com>
parents: 4681
diff changeset
51 table.insert(events_array, event);
447f5a94792d util.helpers: show_events(): Make more robust, and allow filtering results to a specific event
Matthew Wild <mwild1@gmail.com>
parents: 4681
diff changeset
52 local handler_strings = {};
447f5a94792d util.helpers: show_events(): Make more robust, and allow filtering results to a specific event
Matthew Wild <mwild1@gmail.com>
parents: 4681
diff changeset
53 for i, handler in ipairs(handlers) do
447f5a94792d util.helpers: show_events(): Make more robust, and allow filtering results to a specific event
Matthew Wild <mwild1@gmail.com>
parents: 4681
diff changeset
54 local upvals = debug.string_from_var_table(debug.get_upvalues_table(handler));
447f5a94792d util.helpers: show_events(): Make more robust, and allow filtering results to a specific event
Matthew Wild <mwild1@gmail.com>
parents: 4681
diff changeset
55 handler_strings[i] = " "..i..": "..tostring(handler)..(upvals and ("\n "..upvals) or "");
447f5a94792d util.helpers: show_events(): Make more robust, and allow filtering results to a specific event
Matthew Wild <mwild1@gmail.com>
parents: 4681
diff changeset
56 end
447f5a94792d util.helpers: show_events(): Make more robust, and allow filtering results to a specific event
Matthew Wild <mwild1@gmail.com>
parents: 4681
diff changeset
57 event_handler_arrays[event] = handler_strings;
4681
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
58 end
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
59 end
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
60 table.sort(events_array);
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
61 local i = 1;
4705
447f5a94792d util.helpers: show_events(): Make more robust, and allow filtering results to a specific event
Matthew Wild <mwild1@gmail.com>
parents: 4681
diff changeset
62 while i <= #events_array do
4681
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
63 local handlers = event_handler_arrays[events_array[i]];
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
64 for j=#handlers, 1, -1 do
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
65 table.insert(events_array, i+1, handlers[j]);
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
66 end
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
67 if i > 1 then events_array[i] = "\n"..events_array[i]; end
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
68 i = i + #handlers + 1
4705
447f5a94792d util.helpers: show_events(): Make more robust, and allow filtering results to a specific event
Matthew Wild <mwild1@gmail.com>
parents: 4681
diff changeset
69 end
4681
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
70 return table.concat(events_array, "\n");
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
71 end
3299223bbed5 util.helpers: Add show_events(), to show the events and handlers in a util.events object
Matthew Wild <mwild1@gmail.com>
parents: 4536
diff changeset
72
1959
f56670ce64de util.helpers: Add get_upvalue(function, name) helper
Matthew Wild <mwild1@gmail.com>
parents: 1795
diff changeset
73 function get_upvalue(f, get_name)
f56670ce64de util.helpers: Add get_upvalue(function, name) helper
Matthew Wild <mwild1@gmail.com>
parents: 1795
diff changeset
74 local i, name, value = 0;
f56670ce64de util.helpers: Add get_upvalue(function, name) helper
Matthew Wild <mwild1@gmail.com>
parents: 1795
diff changeset
75 repeat
f56670ce64de util.helpers: Add get_upvalue(function, name) helper
Matthew Wild <mwild1@gmail.com>
parents: 1795
diff changeset
76 i = i + 1;
f56670ce64de util.helpers: Add get_upvalue(function, name) helper
Matthew Wild <mwild1@gmail.com>
parents: 1795
diff changeset
77 name, value = debug.getupvalue(f, i);
f56670ce64de util.helpers: Add get_upvalue(function, name) helper
Matthew Wild <mwild1@gmail.com>
parents: 1795
diff changeset
78 until name == get_name or name == nil;
f56670ce64de util.helpers: Add get_upvalue(function, name) helper
Matthew Wild <mwild1@gmail.com>
parents: 1795
diff changeset
79 return value;
f56670ce64de util.helpers: Add get_upvalue(function, name) helper
Matthew Wild <mwild1@gmail.com>
parents: 1795
diff changeset
80 end
f56670ce64de util.helpers: Add get_upvalue(function, name) helper
Matthew Wild <mwild1@gmail.com>
parents: 1795
diff changeset
81
1531
21051377f11b util.helpers: New util library to aid with debugging, etc.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
82 return _M;