Class: Benelux::MethodTimer

Inherits:
MethodPacker show all
Defined in:
lib/benelux/packer.rb

Instance Attribute Summary

Attributes inherited from MethodPacker

#aliaz, #blk, #klass, #meth, #methorig

Attributes included from Selectable::Object

#tags

Instance Method Summary collapse

Methods inherited from MethodPacker

#initialize, #instance_exec, #run_block

Methods included from Selectable::Object

#add_tags, #add_tags_quick, #init_tags!, #remove_tags, #tag_values

Constructor Details

This class inherits a constructor from Benelux::MethodPacker

Instance Method Details

#generate_packed_method ⇒ Object

Creates a method definition (for an eval). The method is named @meth and it calls @methorig.

The new method adds a Mark to the thread timeline before and after @alias is called. It also adds a Range to the timeline based on the two marks.



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# File 'lib/benelux/packer.rb', line 96

def generate_packed_method
  %Q{
  def #{@meth}(*args, &block)
    call_id = "" << self.object_id.abs.to_s << args.object_id.abs.to_s
    Benelux.current_track :global unless Benelux.known_thread?
    mark_a = Benelux.thread_timeline.add_mark :'#{@aliaz}_a'
    mark_a.add_tag :call_id => call_id
    tags = mark_a.tags
    ret = #{@methorig}(*args, &block)
  rescue => ex  # We do this so we can use
    raise ex    # ex in the ensure block.
  ensure
    mark_z = Benelux.thread_timeline.add_mark :'#{@aliaz}_z'
    mark_z.tags = tags # In case tags were added between these marks
    range = Benelux.thread_timeline.add_range :'#{@aliaz}', mark_a, mark_z
    range.exception = ex if defined?(ex) && !ex.nil?
  end
  }
end

#install_method ⇒ Object

This method executes the method definition created by generate_method. It calls @klass.module_eval with the modified line number (helpful for exceptions)



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# File 'lib/benelux/packer.rb', line 86

def install_method
  @klass.module_eval generate_packed_method, __FILE__, 94
end