(PECL event >= 1.2.6-beta)
EventBuffer::addBuffer — Move all data from a buffer provided to the current instance of EventBuffer
   Move all data from the buffer provided in
   buf
   parameter to the end of current
   EventBuffer
   . This is a destructive add. The data from one buffer moves into the other
   buffer. However, no unnecessary memory copies occur.
  
buf
    The source EventBuffer object.
   Returns true on success or false on failure.