(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. Otherwise FALSE.