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/*
Copyright (C) 1994, 1997, 1999, 2001 Free Software Foundation
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "priv.h"
#include <sys/file.h>
/* Create and return a new peropen structure on node NP with open
flags FLAGS. */
struct peropen *
diskfs_make_peropen (struct node *np, int flags, struct peropen *context)
{
struct peropen *po = malloc (sizeof (struct peropen));
if (! po)
return NULL;
po->filepointer = 0;
po->lock_status = LOCK_UN;
po->refcnt = 0;
po->openstat = flags;
po->np = np;
if (context)
{
po->root_parent = context->root_parent;
if (po->root_parent != MACH_PORT_NULL)
mach_port_mod_refs (mach_task_self (), po->root_parent,
MACH_PORT_RIGHT_SEND, 1);
po->shadow_root = context->shadow_root;
if (po->shadow_root)
diskfs_nref (po->shadow_root);
po->shadow_root_parent = context->shadow_root_parent;
if (po->shadow_root_parent != MACH_PORT_NULL)
mach_port_mod_refs (mach_task_self (), po->shadow_root_parent,
MACH_PORT_RIGHT_SEND, 1);
}
else
{
po->root_parent = MACH_PORT_NULL;
po->shadow_root_parent = MACH_PORT_NULL;
po->shadow_root = _diskfs_chroot_directory ? diskfs_root_node : 0;
}
diskfs_nref (np);
return po;
}
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