Class: PhusionPassenger::Utils::FileSystemWatcher

Inherits:
Object
  • Object
show all
Defined in:
lib/phusion_passenger/utils/file_system_watcher.rb

Defined Under Namespace

Classes: DirInfo, FileInfo

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filenames, termination_pipe = nil) ⇒ FileSystemWatcher

Returns a new instance of FileSystemWatcher.



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# File 'lib/phusion_passenger/utils/file_system_watcher.rb', line 81

def initialize(filenames, termination_pipe = nil)
  @poll_interval = 3
  @termination_pipe = termination_pipe
  @dirs  = []
  @files = []

  begin
    filenames.each do |filename|
      stat = File.stat(filename)
      if stat.directory?
        @dirs << DirInfo.new(filename, stat)
      else
        @files << FileInfo.new(filename, stat)
      end
    end
  rescue Errno::EACCES, Errno::ENOENT
    @dirs = @files = nil
  end
end

Instance Attribute Details

#poll_interval ⇒ Object

Returns the value of attribute poll_interval.



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# File 'lib/phusion_passenger/utils/file_system_watcher.rb', line 75

def poll_interval
  @poll_interval
end

Class Method Details

.opens_files? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/phusion_passenger/utils/file_system_watcher.rb', line 77

def self.opens_files?
  return false
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/phusion_passenger/utils/file_system_watcher.rb', line 115

def close
end

#wait_for_change ⇒ Object 



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# File 'lib/phusion_passenger/utils/file_system_watcher.rb', line 101

def wait_for_change
  if !@dirs
    return false
  end
  
  while true
    if changed?
      return true
    elsif select([@termination_pipe], nil, nil, @poll_interval)
      return nil
    end
  end
end