Question

require 'rubygems'
require 'eventmachine'
module Handler
  def file_modified
    puts "#{path} file modified\n Modified contents:#{get_modified_contents}"
  end
end

def get_modified_contents
  file1 = File.open("#{File.join(Dir.pwd,'test.txt')}",'r+')
  file2_r = File.open("#{File.join(Dir.pwd,'track.txt')}",'r')
  prev_pos = file2_r.read.to_i
  curr_pos = file1.size
  file1.seek(prev_pos)
  modified_contents = file1.read
  file2_w =File.open('track.txt','w')
  file2_w.write(curr_pos)
  modified_contents
end

EventMachine.kqueue = true if EventMachine.kqueue?
EventMachine.run {
  EventMachine.watch_file("#{File.join(Dir.pwd,'test.txt')}",Handler)
}"

我正在尝试运行以上程序并收到以下错误。请提出解决方案。我安装了事件机器。

Installer/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/eventmachine-          1.0.7/lib/eventmachine.rb:1285:in `watch_filename': no file watching support on     this system (EventMachine::Unsupported)
    from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/eventmachine-    1.0.7/lib/eventmachine.rb:1285:in `watch_file'   from     C:/Users/PK64/Documents/Aptana Studio 3         Workspace/FileIO/eventmachine_prac.rb:31:in `block in <main>'
    from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/eventmachine-    1.0.7/lib/eventmachine.rb:187:in `call'
    from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/eventmachine-    1.0.7/lib/eventmachine.rb:187:in `run_machine'
    from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/eventmachine-1.0.7/lib/eventmachine.rb:187:in `run'
    from C:/Users/PK64/Documents/Aptana Studio 3     Workspace/FileIO/eventmachine_prac.rb:30:in `<main>'

file_watch支持windows吗？

0 个答案: