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/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2009 AT&T Intellectual Property *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.opensource.org/licenses/cpl1.0.txt *
* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* David Korn <dgk@research.att.com> *
* Phong Vo <kpv@research.att.com> *
* *
***********************************************************************/
#if defined(_UWIN) && defined(_BLD_ast)
void _STUB_vmclose(){}
#else
#include "vmhdr.h"
/* Close down a region.
**
** Written by Kiem-Phong Vo, kpv@research.att.com, 01/16/94.
*/
#if __STD_C
int vmclose(Vmalloc_t* vm)
#else
int vmclose(vm)
Vmalloc_t* vm;
#endif
{
Seg_t *seg, *vmseg, *next;
Vmalloc_t *v, *last;
Vmdata_t* vd = vm->data;
int ev = 0;
if(vm == Vmheap)
return -1;
if(!(vd->mode&VM_TRUST) && ISLOCK(vd,0))
return -1;
if(vm->disc->exceptf &&
(ev = (*vm->disc->exceptf)(vm,VM_CLOSE,NIL(Void_t*),vm->disc)) < 0 )
return -1;
/* make this region inaccessible until it disappears */
vd->mode &= ~VM_TRUST;
SETLOCK(vd,0);
if((vd->mode&VM_MTPROFILE) && _Vmpfclose)
(*_Vmpfclose)(vm);
/* remove from linked list of regions */
for(last = Vmheap, v = last->next; v; last = v, v = v->next)
{ if(v == vm)
{ last->next = v->next;
break;
}
}
if(ev == 0)
{ vmseg = NIL(Seg_t*);
for(seg = vd->seg; seg; seg = next)
{ next = seg->next;
if(seg->extent == seg->size)
vmseg = seg;
else (*vm->disc->memoryf)(vm,seg->addr,seg->extent,0,vm->disc);
}
if(vmseg)
(*vm->disc->memoryf)(vm,vmseg->addr,vmseg->extent,0,vm->disc);
}
else CLRLOCK(vd,0);
vmfree(Vmheap,vm);
return 0;
}
#endif
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