#  Phusion Passenger - http://www.modrails.com/
#  Copyright (C) 2008  Phusion
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; version 2 of the License.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License along
#  with this program; if not, write to the Free Software Foundation, Inc.,
#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
class Object # :nodoc:
  @@benchmark_results = {}
 
  def b!(name)
    time1 = Time.now
    begin
      yield
    ensure
      time2 = Time.now
      @@benchmark_results[name] = 0 unless @@benchmark_results.has_key?(name)
      @@benchmark_results[name] += time2 - time1
    end 
  end
 
  def benchmark_report(main = nil)
    total = 0
    if main.nil?
      @@benchmark_results.each_value do |time|
        total += time
      end
    else
      total = @@benchmark_results[main]
    end
    @@benchmark_results.each_pair do |name, time|
      printf "%-12s: %.4f (%.2f%%)\n", name, time, time / total * 100
    end
    printf "-- Total: %.4f\n", total
  end
end