vmwalk.c revision 3e14f97f673e8a630f076077de35afdd43dc1587
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2010 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_vmwalk(){}
#else
#include "vmhdr.h"
/* Walks all segments created in region(s)
**
** Written by Kiem-Phong Vo, kpv@research.att.com (02/08/96)
*/
#if __STD_C
int vmwalk(Vmalloc_t* vm, int(*segf)(Vmalloc_t*, Void_t*, size_t, Vmdisc_t*, Void_t*), Void_t* handle )
#else
int vmwalk(vm, segf, handle)
Vmalloc_t* vm;
int(* segf)(/* Vmalloc_t*, Void_t*, size_t, Vmdisc_t* */);
Void_t* handle;
#endif
{
reg Seg_t* seg;
reg int rv;
if(!vm)
{ for(vm = Vmheap; vm; vm = vm->next)
{ if(!(vm->data->mode&VM_TRUST) && ISLOCK(vm->data,0) )
continue;
SETLOCK(vm->data,0);
for(seg = vm->data->seg; seg; seg = seg->next)
{ rv = (*segf)(vm, seg->addr, seg->extent, vm->disc, handle);
if(rv < 0)
return rv;
}
CLRLOCK(vm->data,0);
}
}
else
{ if(!(vm->data->mode&VM_TRUST) && ISLOCK(vm->data,0) )
return -1;
SETLOCK(vm->data,0);
for(seg = vm->data->seg; seg; seg = seg->next)
{ rv = (*segf)(vm, seg->addr, seg->extent, vm->disc, handle);
if(rv < 0)
return rv;
}
CLRLOCK(vm->data,0);
}
return 0;
}
#endif