Path: utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!usc!snorkelwacker.mit.edu!bloom-beacon!LARRY.MCRCIM.MCGILL.EDU!mouse
From: mouse@LARRY.MCRCIM.MCGILL.EDU
Newsgroups: comp.windows.x
Subject: Re:  Number of connections to server
Message-ID: <9012190448.AA02434@Larry.McRCIM.McGill.EDU>
Date: 19 Dec 90 04:48:07 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 40

> Under Sun OS 4.1, there is a way to increase the number of
> descriptors a program has opened from the soft limit of 64 to the
> real hard limit of 128.  Right now the Xserver uses the soft limit,
> could somebody let me know where such an allocation is done in the
> actual MIT X server?

(Bet you thought everybody'd forgotten! :-)

Look in os/4.2bsd/connection.c...

	void
	CreateWellKnownSockets()
	{
...
	#ifdef	hpux
		lastfdesc = _NFILE - 2;
	#else
		lastfdesc = getdtablesize() - 2;
	#endif	/* hpux */
	
	    if (lastfdesc > MAXSOCKS)
	    {
		lastfdesc = MAXSOCKS;
		if (debug_conns)
		    ErrorF( "GOT TO END OF SOCKETS %d\n", MAXSOCKS);
	    }
	
	    WellKnownConnections = 0;

(The above is roughly correct, but may not be precise, as it is
regenerated from a locally-modified version.  The essence for these
purposes is correct.)

Just before the assignment to lastfdesc would probably be a reasonable
place to raise the soft limit to the hard limit.

					der Mouse

			old: mcgill-vision!mouse
			new: mouse@larry.mcrcim.mcgill.edu