xref: /illumos-gate/usr/src/contrib/ast/src/lib/libast/vmalloc/vmdisc.c (revision b30d193948be5a7794d7ae3ba0ed9c2f72c88e0f)
1*b30d1939SAndy Fiddaman /***********************************************************************
2*b30d1939SAndy Fiddaman *                                                                      *
3*b30d1939SAndy Fiddaman *               This software is part of the ast package               *
4*b30d1939SAndy Fiddaman *          Copyright (c) 1985-2011 AT&T Intellectual Property          *
5*b30d1939SAndy Fiddaman *                      and is licensed under the                       *
6*b30d1939SAndy Fiddaman *                 Eclipse Public License, Version 1.0                  *
7*b30d1939SAndy Fiddaman *                    by AT&T Intellectual Property                     *
8*b30d1939SAndy Fiddaman *                                                                      *
9*b30d1939SAndy Fiddaman *                A copy of the License is available at                 *
10*b30d1939SAndy Fiddaman *          http://www.eclipse.org/org/documents/epl-v10.html           *
11*b30d1939SAndy Fiddaman *         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
12*b30d1939SAndy Fiddaman *                                                                      *
13*b30d1939SAndy Fiddaman *              Information and Software Systems Research               *
14*b30d1939SAndy Fiddaman *                            AT&T Research                             *
15*b30d1939SAndy Fiddaman *                           Florham Park NJ                            *
16*b30d1939SAndy Fiddaman *                                                                      *
17*b30d1939SAndy Fiddaman *                 Glenn Fowler <gsf@research.att.com>                  *
18*b30d1939SAndy Fiddaman *                  David Korn <dgk@research.att.com>                   *
19*b30d1939SAndy Fiddaman *                   Phong Vo <kpv@research.att.com>                    *
20*b30d1939SAndy Fiddaman *                                                                      *
21*b30d1939SAndy Fiddaman ***********************************************************************/
22*b30d1939SAndy Fiddaman #if defined(_UWIN) && defined(_BLD_ast)
23*b30d1939SAndy Fiddaman 
_STUB_vmdisc()24*b30d1939SAndy Fiddaman void _STUB_vmdisc(){}
25*b30d1939SAndy Fiddaman 
26*b30d1939SAndy Fiddaman #else
27*b30d1939SAndy Fiddaman 
28*b30d1939SAndy Fiddaman #include	"vmhdr.h"
29*b30d1939SAndy Fiddaman 
30*b30d1939SAndy Fiddaman /*	Change the discipline for a region.  The old discipline
31*b30d1939SAndy Fiddaman **	is returned.  If the new discipline is NULL then the
32*b30d1939SAndy Fiddaman **	discipline is not changed.
33*b30d1939SAndy Fiddaman **
34*b30d1939SAndy Fiddaman **	Written by Kiem-Phong Vo, kpv@research.att.com, 01/16/94.
35*b30d1939SAndy Fiddaman */
36*b30d1939SAndy Fiddaman #if __STD_C
vmdisc(Vmalloc_t * vm,Vmdisc_t * disc)37*b30d1939SAndy Fiddaman Vmdisc_t* vmdisc(Vmalloc_t* vm, Vmdisc_t* disc)
38*b30d1939SAndy Fiddaman #else
39*b30d1939SAndy Fiddaman Vmdisc_t* vmdisc(vm, disc)
40*b30d1939SAndy Fiddaman Vmalloc_t*	vm;
41*b30d1939SAndy Fiddaman Vmdisc_t*	disc;
42*b30d1939SAndy Fiddaman #endif
43*b30d1939SAndy Fiddaman {
44*b30d1939SAndy Fiddaman 	Vmdisc_t*	old = vm->disc;
45*b30d1939SAndy Fiddaman 
46*b30d1939SAndy Fiddaman 	if(disc)
47*b30d1939SAndy Fiddaman 	{	if(old->exceptf &&
48*b30d1939SAndy Fiddaman 		   (*old->exceptf)(vm,VM_DISC,(Void_t*)disc,old) != 0 )
49*b30d1939SAndy Fiddaman 			return NIL(Vmdisc_t*);
50*b30d1939SAndy Fiddaman 		vm->disc = disc;
51*b30d1939SAndy Fiddaman 	}
52*b30d1939SAndy Fiddaman 	return old;
53*b30d1939SAndy Fiddaman }
54*b30d1939SAndy Fiddaman 
55*b30d1939SAndy Fiddaman #endif
56