Class: Knj::Event_filemod

Inherits:
Object show all
Defined in:
lib/knj/event_filemod.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args, &block) ⇒ Event_filemod

Returns a new instance of Event_filemod.



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# File 'lib/knj/event_filemod.rb', line 4

def initialize(args, &block)
  @args = args
  @run = true
  @mutex = Mutex.new
  
  @args[:wait] = 1 if !@args.key?(:wait)
  
  @mtimes = {}
  args[:paths].each do |path|
    @mtimes[path] = File.mtime(path)
  end
  
  Knj::Thread.new do
    while @run do
      break if !@args or !@args[:paths] or @args[:paths].empty?
      
      @mutex.synchronize do
        @args[:paths].each do |path|
          changed = false
          
          if @mtimes and !@mtimes.key?(path) and @mtimes.is_a?(Hash)
            @mtimes[path] = File.mtime(path)
          end
          
          begin
            newdate = File.mtime(path)
          rescue Errno::ENOENT
            #file does not exist.
            changed = true
          end
          
          if !changed and newdate and @mtimes and newdate > @mtimes[path]
            changed = true
          end
          
          if changed
            block.call(self, path)
            @args[:paths].delete(path) if @args and @args[:break_when_changed]
          end
        end
        
        sleep @args[:wait] if @args and @run
      end
    end
  end
end

Instance Attribute Details

#args ⇒ Object (readonly)

Returns the value of attribute args.



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# File 'lib/knj/event_filemod.rb', line 2

def args
  @args
end

Instance Method Details

#add_path(fpath) ⇒ Object 



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# File 'lib/knj/event_filemod.rb', line 57

def add_path(fpath)
  @args[:paths] << fpath
end

#destroy ⇒ Object 



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# File 'lib/knj/event_filemod.rb', line 51

def destroy
  @mtimes = {}
  @run = false
  @args = nil
end