Class: Logger::LogDevice

Inherits:

Object

• Object
• Logger::LogDevice

show all

Defined in:

lib/logger.rb

Defined Under Namespace

Classes: LogDeviceMutex

Constant Summary

SiD =

24 * 60 * 60

Instance Attribute Summary (collapse)

• - (Object) dev readonly

  Returns the value of attribute dev.

• - (Object) filename readonly

  Returns the value of attribute filename.

Instance Method Summary (collapse)

• - (Object) close
• - (LogDevice) initialize(log = nil, opt = {}) constructor

  A new instance of LogDevice.

• - (Object) write(message)

493
494
495
496
497
498
499
500
501
502
503
504
505

# File 'lib/logger.rb', line 493

def initialize(log = nil, opt = {})
  @dev = @filename = @shift_age = @shift_size = nil
  @mutex = LogDeviceMutex.new
  if log.respond_to?(:write) and log.respond_to?(:close)
    @dev = log
  else
    @dev = open_logfile(log)
    @dev.sync = true
    @filename = log
    @shift_age = opt[:shift_age] || 7
    @shift_size = opt[:shift_size] || 1048576
  end
end

486
487
488

# File 'lib/logger.rb', line 486

def dev
  @dev
end

487
488
489

# File 'lib/logger.rb', line 487

def filename
  @filename
end

528
529
530
531
532
533
534
535
536

# File 'lib/logger.rb', line 528

def close
  begin
    @mutex.synchronize do
      @dev.close rescue nil
    end
  rescue Exception => ignored
    @dev.close rescue nil
  end
end

507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526

# File 'lib/logger.rb', line 507

def write(message)
  begin
    @mutex.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