Class: Rack::Bug::ProfilingSpeedTracer

Inherits:
SpeedTracer
  • Object
show all
Defined in:
lib/rack/bug/panels/speedtracer_panel/profiling.rb

Overview

Variant of the Speed Tracer Panel that performs a nearly complete profile of all code called during a request. Note that this will slow overall response time by several orders of magnitude, and may return more data than SpeedTracer is prepared to display

Instance Method Summary collapse

Instance Method Details

#after(env, status, headers, body) ⇒ Object 



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# File 'lib/rack/bug/panels/speedtracer_panel/profiling.rb', line 24

def after(env, status, headers, body)
  Kernel::set_trace_func(nil)
  super
end

#before(env) ⇒ Object 



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# File 'lib/rack/bug/panels/speedtracer_panel/profiling.rb', line 9

def before(env)
  super
  tracer = env['st.tracer']
  Kernel::set_trace_func proc {|event, file, line, name, binding,classname|
    case event
    when "c-call", "call"
      methodname = classname ? "" : classname
      methodname += name.to_s
      tracer.start_event(file, line, name, classname || "", "")
    when "c-return", "return"
      tracer.finish_event
    end
  }
end