Method: IO#writev

Defined in:
lib/phusion_passenger/utils.rb

#writev(components) ⇒ Object

Writes all of the strings in the components array into the given file descriptor using the writev() system call. Unlike IO#write, this method does not require one to concatenate all those strings into a single buffer in order to send the data in a single system call. Thus, #writev is a great way to perform zero-copy I/O.

Unlike the raw writev() system call, this method ensures that all given data is written before returning, by performing multiple writev() calls and whatever else is necessary.

io.writev(["hello ", "world", "\n"])



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# File 'lib/phusion_passenger/utils.rb', line 970

def writev(components)
  return PhusionPassenger::NativeSupport.writev(fileno, components)
end