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87 lines
2.5 KiB
87 lines
2.5 KiB
-- Prosody IM
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-- Copyright (C) 2008-2010 Matthew Wild
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-- Copyright (C) 2008-2010 Waqas Hussain
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--
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-- This project is MIT/X11 licensed. Please see the
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-- COPYING file in the source package for more information.
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--
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local debug = require "util.debug";
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-- Helper functions for debugging
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local log = require "util.logger".init("util.debug");
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local function log_events(events, name, logger)
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local f = events.fire_event;
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if not f then
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error("Object does not appear to be a util.events object");
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end
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logger = logger or log;
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name = name or tostring(events);
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function events.fire_event(event, ...)
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logger("debug", "%s firing event: %s", name, event);
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return f(event, ...);
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end
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events[events.fire_event] = f;
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return events;
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end
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local function revert_log_events(events)
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events.fire_event, events[events.fire_event] = events[events.fire_event], nil; -- :))
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end
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local function log_host_events(host)
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return log_events(prosody.hosts[host].events, host);
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end
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local function revert_log_host_events(host)
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return revert_log_events(prosody.hosts[host].events);
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end
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local function show_events(events, specific_event)
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local event_handlers = events._handlers;
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local events_array = {};
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local event_handler_arrays = {};
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for event, priorities in pairs(events._event_map) do
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local handlers = event_handlers[event];
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if handlers and (event == specific_event or not specific_event) then
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table.insert(events_array, event);
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local handler_strings = {};
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for i, handler in ipairs(handlers) do
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local upvals = debug.string_from_var_table(debug.get_upvalues_table(handler));
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handler_strings[i] = " "..priorities[handler]..": "..tostring(handler)..(upvals and ("\n "..upvals) or "");
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end
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event_handler_arrays[event] = handler_strings;
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end
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end
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table.sort(events_array);
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local i = 1;
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while i <= #events_array do
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local handlers = event_handler_arrays[events_array[i]];
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for j=#handlers, 1, -1 do
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table.insert(events_array, i+1, handlers[j]);
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end
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if i > 1 then events_array[i] = "\n"..events_array[i]; end
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i = i + #handlers + 1
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end
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return table.concat(events_array, "\n");
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end
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local function get_upvalue(f, get_name)
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local i, name, value = 0;
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repeat
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i = i + 1;
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name, value = debug.getupvalue(f, i);
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until name == get_name or name == nil;
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return value;
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end
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return {
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log_host_events = log_host_events;
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revert_log_host_events = revert_log_host_events;
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log_events = log_events;
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revert_log_events = revert_log_events;
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show_events = show_events;
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get_upvalue = get_upvalue;
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};
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