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_vmclose()244887Schin void _STUB_vmclose(){}
254887Schin
264887Schin #else
274887Schin
284887Schin #include "vmhdr.h"
294887Schin
304887Schin /* Close down a region.
314887Schin **
324887Schin ** Written by Kiem-Phong Vo, kpv@research.att.com, 01/16/94.
334887Schin */
344887Schin #if __STD_C
vmclose(Vmalloc_t * vm)354887Schin int vmclose(Vmalloc_t* vm)
364887Schin #else
374887Schin int vmclose(vm)
384887Schin Vmalloc_t* vm;
394887Schin #endif
404887Schin {
414887Schin Seg_t *seg, *vmseg, *next;
424887Schin Vmalloc_t *v, *last;
434887Schin Vmdata_t* vd = vm->data;
444887Schin int ev = 0;
454887Schin
464887Schin if(vm == Vmheap)
474887Schin return -1;
484887Schin
494887Schin if(!(vd->mode&VM_TRUST) && ISLOCK(vd,0))
504887Schin return -1;
514887Schin
524887Schin if(vm->disc->exceptf &&
534887Schin (ev = (*vm->disc->exceptf)(vm,VM_CLOSE,NIL(Void_t*),vm->disc)) < 0 )
544887Schin return -1;
554887Schin
564887Schin /* make this region inaccessible until it disappears */
574887Schin vd->mode &= ~VM_TRUST;
584887Schin SETLOCK(vd,0);
594887Schin
604887Schin if((vd->mode&VM_MTPROFILE) && _Vmpfclose)
614887Schin (*_Vmpfclose)(vm);
624887Schin
634887Schin /* remove from linked list of regions */
644887Schin for(last = Vmheap, v = last->next; v; last = v, v = v->next)
654887Schin { if(v == vm)
664887Schin { last->next = v->next;
674887Schin break;
684887Schin }
694887Schin }
704887Schin
714887Schin if(ev == 0)
724887Schin { vmseg = NIL(Seg_t*);
734887Schin for(seg = vd->seg; seg; seg = next)
744887Schin { next = seg->next;
754887Schin if(seg->extent == seg->size)
764887Schin vmseg = seg;
774887Schin else (*vm->disc->memoryf)(vm,seg->addr,seg->extent,0,vm->disc);
784887Schin }
794887Schin if(vmseg)
804887Schin (*vm->disc->memoryf)(vm,vmseg->addr,vmseg->extent,0,vm->disc);
814887Schin }
824887Schin else CLRLOCK(vd,0);
834887Schin
844887Schin vmfree(Vmheap,vm);
854887Schin
864887Schin return 0;
874887Schin }
884887Schin
894887Schin #endif
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