14887Schin /***********************************************************************
24887Schin * *
34887Schin * This software is part of the ast package *
4*12068SRoger.Faulkner@Oracle.COM * Copyright (c) 1985-2010 AT&T Intellectual Property *
54887Schin * and is licensed under the *
64887Schin * Common Public License, Version 1.0 *
78462SApril.Chin@Sun.COM * by AT&T Intellectual Property *
84887Schin * *
94887Schin * A copy of the License is available at *
104887Schin * http://www.opensource.org/licenses/cpl1.0.txt *
114887Schin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
124887Schin * *
134887Schin * Information and Software Systems Research *
144887Schin * AT&T Research *
154887Schin * Florham Park NJ *
164887Schin * *
174887Schin * Glenn Fowler <gsf@research.att.com> *
184887Schin * David Korn <dgk@research.att.com> *
194887Schin * Phong Vo <kpv@research.att.com> *
204887Schin * *
214887Schin ***********************************************************************/
224887Schin #if defined(_UWIN) && defined(_BLD_ast)
234887Schin
_STUB_vmset()244887Schin void _STUB_vmset(){}
254887Schin
264887Schin #else
274887Schin
284887Schin #include "vmhdr.h"
294887Schin
304887Schin
314887Schin /* Set the control flags for a region.
324887Schin **
334887Schin ** Written by Kiem-Phong Vo, kpv@research.att.com, 01/16/94.
344887Schin */
354887Schin #if __STD_C
vmset(reg Vmalloc_t * vm,int flags,int on)364887Schin int vmset(reg Vmalloc_t* vm, int flags, int on)
374887Schin #else
384887Schin int vmset(vm, flags, on)
394887Schin reg Vmalloc_t* vm; /* region being worked on */
404887Schin int flags; /* flags must be in VM_FLAGS */
414887Schin int on; /* !=0 if turning on, else turning off */
424887Schin #endif
434887Schin {
448462SApril.Chin@Sun.COM reg int mode, inuse;
454887Schin reg Vmdata_t* vd = vm->data;
464887Schin
474887Schin if(flags == 0 && on == 0)
484887Schin return vd->mode;
494887Schin
508462SApril.Chin@Sun.COM SETINUSE(vd, inuse);
514887Schin if(!(vd->mode&VM_TRUST) )
524887Schin { if(ISLOCK(vd,0))
538462SApril.Chin@Sun.COM { CLRINUSE(vd, inuse);
544887Schin return 0;
558462SApril.Chin@Sun.COM }
564887Schin SETLOCK(vd,0);
574887Schin }
584887Schin
594887Schin mode = vd->mode;
604887Schin
614887Schin if(on)
624887Schin vd->mode |= (flags&VM_FLAGS);
634887Schin else vd->mode &= ~(flags&VM_FLAGS);
644887Schin
654887Schin if(vd->mode&(VM_TRACE|VM_MTDEBUG))
664887Schin vd->mode &= ~VM_TRUST;
674887Schin
684887Schin CLRLOCK(vd,0);
698462SApril.Chin@Sun.COM CLRINUSE(vd, inuse);
704887Schin
714887Schin return mode;
724887Schin }
734887Schin
744887Schin #endif
75