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#-- vim:sw=2:et
#++
#
# :title: Debugging/profiling for rbot
#
# Author:: Giuseppe "Oblomov" Bilotta <giuseppe.bilotta@gmail.com>
# Copyright:: (C) 2006-2007 Giuseppe Bilotta
# License:: GPL v2
class DebugPlugin < Plugin
BotConfig.register BotConfigIntegerValue.new('debug.interval',
:default => 10, :validate => Proc.new{|v| v > 0},
:desc => "Number of seconds between memory profile dumps")
BotConfig.register BotConfigBooleanValue.new('debug.dump_strings',
:default => false,
:desc => "Set to true if you want the profiler to dump strings, false otherwise")
BotConfig.register BotConfigStringValue.new('debug.logdir',
:default => "",
:desc => "Directory where profile/string dumps are to be stored")
def initialize
super
@prev = Hash.new(0)
@curr = Hash.new(0)
@delta = Hash.new(0)
@file = File.open("#{@bot.botclass}/#{@bot.config['debug.logdir']}/memory_profiler.log",'w')
@thread = @bot.timer.add(@bot.config['debug.interval']) {
begin
GC.start
@curr.clear
curr_strings = []
ObjectSpace.each_object do |o|
@curr[o.class] += 1 #Marshal.dump(o).size rescue 1
if @bot.config['debug.dump_strings'] and o.class == String
curr_strings.push o
end
end
if @bot.config['debug.dump_strings']
File.open("#{@bot.botclass}/#{@bot.config['debug.logdir']}/memory_profiler_strings.log.#{Time.now.to_i}",'w') do |f|
curr_strings.sort.each do |s|
f.puts s
end
end
curr_strings.clear
end
@delta.clear
(@curr.keys + @prev.keys).uniq.each do |k,v|
@delta[k] = @curr[k]-@prev[k]
end
@file.puts "Top 20"
@delta.sort_by { |k,v| -v.abs }[0..19].sort_by { |k,v| -v}.each do |k,v|
@file.printf "%+5d: %s (%d)\n", v, k.name, @curr[k] unless v == 0
end
@file.flush
@delta.clear
@prev.clear
@prev.update @curr
GC.start
rescue Exception => err
error "** memory_profiler error: #{err}"
end
}
@bot.timer.block(@thread)
end
def help( plugin, topic="" )
"debug start => start the periodic profiler; " + \
"debug stop => stops the periodic profiler; " + \
"debug dumpstrings => dump all of the strings"
end
def start_it(m, params)
begin
@bot.timer.unblock(@thread)
m.reply "profile dump started"
rescue Exception => err
m.reply "couldn't start profile dump"
error "couldn't start profile dump: #{err}"
end
end
def stop_it(m, params)
begin
@bot.timer.block(@thread)
m.reply "profile dump stop"
rescue Exception => err
m.reply "couldn't stop profile dump"
error "couldn't stop profile dump: #{err}"
end
end
def dump_strings(m, params)
curr_strings = []
m.reply "Dumping strings ..."
begin
GC.start
ObjectSpace.each_object do |o|
if o.class == String
curr_strings.push o
end
end
File.open("#{@bot.botclass}/#{@bot.config['debug.logdir']}/memory_profiler_strings.log.#{Time.now.to_i}",'w') do |f|
curr_strings.sort.each do |s|
f.puts s
end
end
GC.start
m.reply "... done"
rescue Exception => err
m.reply "dumping strings failed"
error "dumping strings failed: #{err}"
end
end
end
plugin = DebugPlugin.new
plugin.default_auth( 'start', false )
plugin.default_auth( 'stop', false )
plugin.default_auth( 'dumpstrings', false )
plugin.map 'debug start', :action => 'start_it'
plugin.map 'debug stop', :action => 'stop_it'
plugin.map 'debug dumpstrings', :action => 'dump_strings'
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