Module: PhusionPassenger::DebugLogging

Included in:
AbstractRequestHandler, ClassicRails::ApplicationSpawner, Rack::ApplicationSpawner
Defined in:
lib/phusion_passenger/debug_logging.rb

Constant Summary collapse

@@log_level =

We don’t refer to STDERR directly because STDERR’s reference might change during runtime.

0
@@log_device = 
nil
@@log_filename = 
nil
@@stderr_evaluator = 
lambda { STDERR }

Class Method Summary collapse

Class Method Details

._log_device ⇒ Object 



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# File 'lib/phusion_passenger/debug_logging.rb', line 55

def self._log_device
  return @@log_device
end

.debug(message) ⇒ Object 



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# File 'lib/phusion_passenger/debug_logging.rb', line 77

def debug(message)
  trace(1, message, 1)
end

.error(message) ⇒ Object 



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# File 'lib/phusion_passenger/debug_logging.rb', line 67

def error(message)
  trace(-1, message, 1)
end

.included(klass) ⇒ Object 



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# File 'lib/phusion_passenger/debug_logging.rb', line 34

def self.included(klass)
  klass.class_eval do
    private :debug
    private :trace
  end
end

.log_file=(filename) ⇒ Object 



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# File 'lib/phusion_passenger/debug_logging.rb', line 45

def self.log_file=(filename)
  if filename && filename.empty?
    @@log_filename = nil
  else
    @@log_filename = filename
  end
  @@log_device.close if @@log_device && !@@log_device.closed?
  @@log_device = nil
end

.log_level=(level) ⇒ Object 



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# File 'lib/phusion_passenger/debug_logging.rb', line 41

def self.log_level=(level)
  @@log_level = level
end

.stderr_evaluator=(block) ⇒ Object 



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# File 'lib/phusion_passenger/debug_logging.rb', line 59

def self.stderr_evaluator=(block)
  if block
    @@stderr_evaluator = block
  else
    @@stderr_evaluator = lambda { STDERR }
  end
end

.trace(level, message, nesting_level = 0) ⇒ Object 



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# File 'lib/phusion_passenger/debug_logging.rb', line 82

def trace(level, message, nesting_level = 0)
  if @@log_level >= level
    if @@log_filename
      if !@@log_device || @@log_device.closed?
        @@log_device = File.open(@@log_filename, "a")
      end
      output = @@log_device
    else
      output = @@stderr_evaluator.call
    end
    location = caller[nesting_level].sub(/.*phusion_passenger\//, '')
    location.sub!(/(.*):.*/, '\1')
    now = Time.now
    time_str = now.strftime("%Y-%m-%d %H:%M:%S.")
    time_str << sprintf("%03d", now.usec / 1000)
    output.write("[ pid=#{$$} thr=#{Thread.current.object_id} file=#{location} time=#{time_str} ]: #{message}\n")
    output.flush
  end
end

.warn(message) ⇒ Object 



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# File 'lib/phusion_passenger/debug_logging.rb', line 72

def warn(message)
  trace(0, message, 1)
end