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  • logger.rb

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Logger::LogDevice

Device used for logging messages.

Attributes

dev[R]
filename[R]

Public Class Methods

new(log = nil, opt = {}) click to toggle source
 
               # File logger.rb, line 632
def initialize(log = nil, opt = {})
  @dev = @filename = @shift_age = @shift_size = nil
  mon_initialize
  set_dev(log)
  if @filename
    @shift_age = opt[:shift_age] || 7
    @shift_size = opt[:shift_size] || 1048576
    @next_rotate_time = next_rotate_time(Time.now, @shift_age) unless @shift_age.is_a?(Integer)
  end
end
            

Public Instance Methods

close() click to toggle source
 
               # File logger.rb, line 664
def close
  begin
    synchronize do
      @dev.close rescue nil
    end
  rescue Exception
    @dev.close rescue nil
  end
end
            
reopen(log = nil) click to toggle source
 
               # File logger.rb, line 674
def reopen(log = nil)
  # reopen the same filename if no argument, do nothing for IO
  log ||= @filename if @filename
  if log
    synchronize do
      if @filename and @dev
        @dev.close rescue nil # close only file opened by Logger
        @filename = nil
      end
      set_dev(log)
    end
  end
  self
end
            
write(message) click to toggle source
 
               # File logger.rb, line 643
def write(message)
  begin
    synchronize do
      if @shift_age and @dev.respond_to?(:stat)
        begin
          check_shift_log
        rescue
          warn("log shifting failed. #{$!}")
        end
      end
      begin
        @dev.write(message)
      rescue
        warn("log writing failed. #{$!}")
      end
    end
  rescue Exception => ignored
    warn("log writing failed. #{ignored}")
  end
end