(PECL event >= 1.7.0)
EventBuffer::readFrom — Read data from a file onto the end of the buffer
   Read data from the file specified by
   fd
   onto the end of the buffer.
  
fd
    Socket resource, stream, or numeric file descriptor.
howmuch
    Maxmimum number of bytes to read.
   Returns the number of bytes read, or FALSE on failure.