Class: Rack::EBPF

Inherits:
Object
  • Object
show all
Defined in:
lib/rack/ebpf.rb,
lib/rack/ebpf/version.rb

Constant Summary collapse

REQUEST_START = 
0
REQUEST_FINISH = 
1
VERSION = 
"0.1.0"

Instance Method Summary collapse

Constructor Details

#initialize(app, marker_nr = 1) ⇒ EBPF

Returns a new instance of EBPF.



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# File 'lib/rack/ebpf.rb', line 9

def initialize(app, marker_nr = 1)
  @app = app
  @marker_nr = marker_nr
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/rack/ebpf.rb', line 14

def call(env)
  UsdtMarker.probe_i2(@marker_nr, REQUEST_START)
  ret = @app.call(env)
  UsdtMarker.probe_i2(@marker_nr, REQUEST_FINISH)
  ret
end