/***********************************************************************

*                                                                      *

*               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_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* */);

Void_t*		handle;

#endif

{	

	reg Seg_t	*seg;

	reg int		rv = 0;

	if(!vm)

	{	_vmlock(NIL(Vmalloc_t*), 1);

		for(vm = Vmheap; vm; vm = vm->next)

		{	SETLOCK(vm, 0);

			for(seg = vm->data->seg; seg; seg = seg->next)

				if((rv = (*segf)(vm, seg->addr, seg->extent, vm->disc, handle)) < 0 )

					break;

			CLRLOCK(vm, 0);

		}

		_vmlock(NIL(Vmalloc_t*), 0);

	}

	else

	{	SETLOCK(vm, 0);

		for(seg = vm->data->seg; seg; seg = seg->next)

			if((rv = (*segf)(vm, seg->addr, seg->extent, vm->disc, handle)) < 0 )

				break;

		CLRLOCK(vm, 0);

	}

	return rv;

}

#endif