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/* $Id: vmwalk.c,v 1.1.1.1 2004/12/23 04:04:28 ellson Exp $ $Revision: 1.1.1.1 $ */
/* vim:set shiftwidth=4 ts=8: */
/**********************************************************
* This software is part of the graphviz package *
* http://www.graphviz.org/ *
* *
* Copyright (c) 1994-2004 AT&T Corp. *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Corp. *
* *
* Information and Software Systems Research *
* AT&T Research, Florham Park NJ *
**********************************************************/
#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 *))
#else
int vmwalk(vm, segf)
Vmalloc_t *vm;
int (*segf) ( /* Vmalloc_t*, Void_t*, size_t, Vmdisc_t* */ );
#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);
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);
if (rv < 0)
return rv;
}
CLRLOCK(vm->data, 0);
}
return 0;
}
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