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2590 jermar 1 
/*
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 * Copyright (c) 2007 Jakub Jermar
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup fs
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 * @{
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 */
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/**
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 * @file    vfs_node.c
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 * @brief   Various operations on VFS nodes have their home in this file.
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 */
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#include "vfs.h"
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/** Increment reference count of a VFS node.
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 *
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 * @param node      VFS node that will have its refcnt incremented.
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 */
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void vfs_node_addref(vfs_node_t *node)
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{
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    /* TODO */
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}
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/** Decrement reference count of a VFS node.
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 *
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 * This function handles the case when the reference count drops to zero.
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 *
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 * @param node      VFS node that will have its refcnt decremented.
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 */
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void vfs_node_delref(vfs_node_t *node)
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{
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    /* TODO */
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}
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/** Find VFS node.
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 *
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 * This function will try to lookup the given triplet in the VFS node hash
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 * table. In case the triplet is not found there, a new VFS node is created.
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 * In any case, the VFS node will have its reference count incremented. Every
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 * node returned by this call should be eventually put back by calling
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 * vfs_node_put() on it.
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 *
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 * @param triplet   Triplet encoding the identity of the VFS node.
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 *
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 * @return      VFS node corresponding to the given triplet.
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 */
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vfs_node_t *vfs_node_get(vfs_triplet_t *triplet)
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{
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    /* TODO */
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    return NULL;
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}
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/** Return VFS node when no longer needed by the caller.
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 *
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 * This function will remove the reference on the VFS node created by
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 * vfs_node_get(). This function can only be called as a closing bracket to the
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 * preceding vfs_node_get() call.
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 *
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 * @param node      VFS node being released.
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 */
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void vfs_node_put(vfs_node_t *node)
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{
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    vfs_node_delref(node);
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}
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2590 jermar 91 
/**
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 * @}
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 */