class Object

Public Instance Methods

benchmark(s, &b) click to toggle source
# File lib/sup/util.rb, line 232
def benchmark s, &b
  ret = nil
  times = Benchmark.measure { ret = b.call }
  debug "benchmark #{s}: #{times}"
  ret
end
id() click to toggle source

this is for debugging purposes because i keep calling id on the wrong object and i want it to throw an exception

# File lib/sup.rb, line 23
def id
  raise "wrong id called on #{self.inspect}"
end
ignore_concurrent_calls(*methods) click to toggle source
# File lib/sup/util.rb, line 206
  def ignore_concurrent_calls *methods
    methods.each do |meth|
      mutex = "@__concurrent_protector_#{meth}"
      flag = "@__concurrent_flag_#{meth}"
      oldmeth = "__unprotected_#{meth}"
      class_eval <<-EOF
        alias #{oldmeth} #{meth}
        def #{meth}(*a, &b)
          #{mutex} = Mutex.new unless defined? #{mutex}
          #{flag} = true unless defined? #{flag}
          run = #{mutex}.synchronize do
            if #{flag}
              #{flag} = false
              true
            end
          end
          if run
            ret = #{oldmeth}(*a, &b)
            #{mutex}.synchronize { #{flag} = true }
            ret
          end
        end
      EOF
    end
  end
returning(x;) { |x;| ... } click to toggle source

“k combinator”

# File lib/sup/util.rb, line 186
def returning x; yield x; x; end
synchronized(*methods) click to toggle source

clone of java-style whole-method synchronization assumes a @mutex variable TODO: clean up, try harder to avoid namespace collisions

# File lib/sup/util.rb, line 195
  def synchronized *methods
    methods.each do |meth|
      class_eval <<-EOF
        alias unsynchronized_#{meth} #{meth}
        def #{meth}(*a, &b)
          @mutex.synchronize { unsynchronized_#{meth}(*a, &b) }
        end
      EOF
    end
  end
tap() { |self;| ... } click to toggle source
# File lib/sup/util.rb, line 189
def tap; yield self; self; end