method

wait_writable

v2_2_9 - Show latest stable - Class: Object

wait_writable()

public

Wait until the file becomes writable.

ruby -run -e wait_writable -- [OPTION] FILE

-n RETRY    count to retry
-w SEC      each wait time in seconds
-v          verbose

# File lib/un.rb, line 243
def wait_writable
  setup("n:w:v") do |argv, options|
    verbose = options[:verbose]
    n = options[:n] and n = Integer(n)
    wait = (wait = options[:w]) ? Float(wait) : 0.2
    argv.each do |file|
      begin
        open(file, "r+b")
      rescue Errno::ENOENT
        break
      rescue Errno::EACCES => e
        raise if n and (n -= 1) <= 0
        if verbose
          puts e
          STDOUT.flush
        end
        sleep wait
        retry
      end
    end
  end
end

wait_writable

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