Class: FileTee

Inherits:
Object
  • Object
show all
Defined in:
lib/file_tee.rb

Overview

Copyright 2010 Toshiyuki Suzumura.

This file is part of file_tee.

This is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This software is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with this software.  If not, see <http://www.gnu.org/licenses/>.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.open(r_file, w_file) ⇒ Object 



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# File 'lib/file_tee.rb', line 21

def self.open(r_file, w_file)
  raise ArgumentError, "No block given." unless block_given?
  rf = (r_file.respond_to?(:read)) ? r_file : File.open(r_file)
  wf = (w_file.respond_to?(:write_nonblock)) ? w_file : File.open(w_file, "w")
  yield FileTee.new(rf, wf)
ensure
  rf.close if !r_file.respond_to?(:read) and !rf.nil?
  wf.close if !w_file.respond_to?(:write_nonblock) and !wf.nil?
end

Instance Method Details

#read(bytes) ⇒ Object 



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# File 'lib/file_tee.rb', line 31

def read(bytes)
  data = @rf.read(bytes)
  @wf.write_nonblock(data)
  data
end