Class: Files::SizableIO

Inherits:
IO
  • Object
show all
Defined in:
lib/files.com/sizable_io.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.pipe ⇒ Object 



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# File 'lib/files.com/sizable_io.rb', line 3

def self.pipe
  r, w = super

  w.instance_variable_set(:@read_io, r)

  [ r, w ]
end

Instance Method Details

#close ⇒ Object

Raises:

  • (@with_error) 


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# File 'lib/files.com/sizable_io.rb', line 30

def close
  raise @with_error if @with_error
  super
  read_io.content_length_promise.try_set(nil)
  read_io.ready_promise.try_set(true)
end

#error! ⇒ Object 



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# File 'lib/files.com/sizable_io.rb', line 37

def error!
  raise read_io.with_error if read_io.with_error
end

#fulfill_content_length(length) ⇒ Object 



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# File 'lib/files.com/sizable_io.rb', line 21

def fulfill_content_length(length)
  read_io.content_length = length
  read_io.content_length_promise.execute
end

#ready! ⇒ Object 



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# File 'lib/files.com/sizable_io.rb', line 26

def ready!
  read_io.ready_promise.execute
end

#set_error(e) ⇒ Object 



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# File 'lib/files.com/sizable_io.rb', line 41

def set_error(e)
  read_io.with_error = e
end

#size ⇒ Object 



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# File 'lib/files.com/sizable_io.rb', line 11

def size
  read_io.content_length_promise.wait.value
end

#wait!(timeout = nil) ⇒ Object 



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# File 'lib/files.com/sizable_io.rb', line 15

def wait!(timeout=nil)
  read_io.ready_promise.wait(timeout)
  error!
  self
end