> Bruce Momjian wrote:
> > Tom Lane wrote:
> > > Bruce Momjian <[EMAIL PROTECTED]> writes:
> > > > How hard would it be to pre-fork an extra backend
> > >
> > > How are you going to pass the connection socket to an already-forked
> > > child process?  AFAIK there's no remotely portable way ...
> >
> > No idea but it seemed like a nice optimization if we could do it.
> 
> What can be done is to have the parent process open and listen() on the
> socket, then have each child do an accept() on the socket.   That way you
> don't have to pass the socket. The function of the parent process would then
> be only to decide when to start new children.
> 
> On some operating systems, only one child at a time can accept() on the
> socket.  On these, you have to lock around the call to accept().

But how do you know the client wants the database you have forked?  They
could want a different one.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  [EMAIL PROTECTED]               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026

---------------------------(end of broadcast)---------------------------
TIP 6: Have you searched our list archives?

http://archives.postgresql.org

Reply via email to