(PECL event >= 1.2.6-beta)
EventBuffer::pullup — Linearizes data within buffer and returns it's contents as a string
$size
   
   )
   "Linearizes" the first
   size
   bytes of the buffer, copying or moving them as needed to ensure that they
   are all contiguous and occupying the same chunk of memory. If size is
   negative, the function linearizes the entire buffer.
  
Calling EventBuffer::pullup() with a large size can be quite slow, since it potentially needs to copy the entire buffer's contents.
size
    The number of bytes required to be contiguous within the buffer.
   If
   size
   is greater than the number of bytes in the buffer, the function returns
   NULL. Otherwise,
   EventBuffer::pullup()
   returns string.