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/**********************************************************
* node.c
*
* Copyright(C) 2004, 2005 by Stefan Siegl <ssiegl@gmx.de>, Germany
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Publice License,
* version 2 or any later. The license is contained in the COPYING
* file that comes with the libfuse distribution.
*
* create (and care for) nodes ...
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <error.h>
#include <string.h>
#include <hurd/netfs.h>
#include "fuse_i.h"
#include "fuse.h"
/* create a new node for the specified netnode
*/
struct node *
fuse_make_node(struct netnode *nn)
{
struct node *node;
DEBUG("fuse_make_node", "creating node for %s.\n", nn->path);
DEBUG("netnode-lock", "locking netnode, path=%s\n", nn->path);
pthread_mutex_lock(&nn->lock);
if((node = nn->node))
{
/* there already is a node, therefore return another reference to it */
netfs_nref(node);
pthread_mutex_unlock(&nn->lock);
DEBUG("netnode-lock", "UNlocking netnode, path=%s\n", nn->path);
DEBUG("fuse_make_node", "reusing already existing node, %s\n", nn->path);
return node;
}
if(! (node = netfs_make_node(nn)))
{
pthread_mutex_unlock(&nn->lock);
DEBUG("netnode-lock", "UNlocking netnode, path=%s\n", nn->path);
return NULL; /* doesn't look to good for us :-( */
}
/* now initialize those stats for which we are reliable ...
*/
node->nn_stat.st_ino = nn->inode;
node->nn_stat.st_blksize = 4096; /* depends on our host program, but since
* we're expected to fill, assume 4k for now
*/
node->nn_stat.st_rdev = 0;
/* add pointer to our new node structure to the netnode */
nn->node = node;
pthread_mutex_unlock(&nn->lock);
DEBUG("netnode-lock", "UNlocking netnode, path=%s\n", nn->path);
DEBUG("fuse_make_node", "created a new node for %s.\n", nn->path);
return node;
}
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