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/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2011 AT&T Intellectual Property *
* and is licensed under the *
* Eclipse Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.eclipse.org/org/documents/epl-v10.html *
* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
* *
* 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_vmclear(){}
#else
#include "vmhdr.h"
/* Clear out all allocated space.
**
** Written by Kiem-Phong Vo, kpv@research.att.com, 01/16/94.
*/
#if __STD_C
int vmclear(Vmalloc_t* vm)
#else
int vmclear(vm)
Vmalloc_t* vm;
#endif
{
Seg_t *seg, *next;
Block_t *tp;
size_t size, s;
Vmdata_t *vd = vm->data;
SETLOCK(vm, 0);
vd->free = vd->wild = NIL(Block_t*);
vd->pool = 0;
if(vd->mode&(VM_MTBEST|VM_MTDEBUG|VM_MTPROFILE) )
{ vd->root = NIL(Block_t*);
for(s = 0; s < S_TINY; ++s)
TINY(vd)[s] = NIL(Block_t*);
for(s = 0; s <= S_CACHE; ++s)
CACHE(vd)[s] = NIL(Block_t*);
}
for(seg = vd->seg; seg; seg = next)
{ next = seg->next;
tp = SEGBLOCK(seg);
size = seg->baddr - ((Vmuchar_t*)tp) - 2*sizeof(Head_t);
SEG(tp) = seg;
SIZE(tp) = size;
if((vd->mode&(VM_MTLAST|VM_MTPOOL)) )
seg->free = tp;
else
{ SIZE(tp) |= BUSY|JUNK;
LINK(tp) = CACHE(vd)[C_INDEX(SIZE(tp))];
CACHE(vd)[C_INDEX(SIZE(tp))] = tp;
}
tp = BLOCK(seg->baddr);
SEG(tp) = seg;
SIZE(tp) = BUSY;
}
CLRLOCK(vm, 0);
return 0;
}
#endif
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