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scoutos / prex-0.9.0 / usr / server / fs / ramfs / ramfs.h @ 03e9c04a

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/*
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 * Copyright (c) 2006-2007, Kohsuke Ohtani
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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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 * 1. 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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 * 2. 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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 * 3. Neither the name of the author nor the names of any co-contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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#ifndef _RAMFS_H
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#define _RAMFS_H
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#include <sys/cdefs.h>
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#include <sys/prex.h>
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#include <sys/types.h>
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/* #define DEBUG_RAMFS 1 */
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#ifdef DEBUG_RAMFS
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#define DPRINTF(a)        dprintf a
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#define ASSERT(e)        dassert(e)
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#else
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#define DPRINTF(a)        do {} while (0)
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#define ASSERT(e)
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#endif
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#if CONFIG_FS_THREADS > 1
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#define malloc(s)                malloc_r(s)
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#define free(p)                        free_r(p)
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#else
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#define mutex_init(m)                do {} while (0)
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#define mutex_destroy(m)        do {} while (0)
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#define mutex_lock(m)                do {} while (0)
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#define mutex_unlock(m)                do {} while (0)
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#define mutex_trylock(m)        do {} while (0)
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#endif
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/*
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 * File/directory node for RAMFS
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 */
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struct ramfs_node {
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        struct        ramfs_node *rn_next;   /* next node in the same directory */
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        struct        ramfs_node *rn_child;  /* first child node */
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        int         rn_type;        /* file or directory */
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        char        *rn_name;        /* name (null-terminated) */
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        size_t         rn_namelen;        /* length of name not including terminator */
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        size_t         rn_size;        /* file size */
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        char        *rn_buf;        /* buffer to the file data */
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        size_t         rn_bufsize;        /* allocated buffer size */
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};
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__BEGIN_DECLS
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struct ramfs_node *ramfs_allocate_node(char *name, int type);
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void ramfs_free_node(struct ramfs_node *node);
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__END_DECLS
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#endif /* !_RAMFS_H */