File: [local] / prex / usr / server / fs / ramfs / ramfs.h (download)
Revision 1.1.1.1 (vendor branch), Tue Aug 19 12:47:01 2008 UTC (16 years ago) by nbrk
Branch: MAIN, KOHSUKE
CVS Tags: PREX_0_8_BASE, HEAD Changes since 1.1: +0 -0 lines
Initial import of Prex, Portable Real-time Embedded POSIX microkernel system.
I have totally new directions in my development (more focused on real hardware, not virtual one).
Old hacks are available in prex-old module. They will be carefully re-designed and merged soon.
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/*
* Copyright (c) 2006-2007, Kohsuke Ohtani
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _RAMFS_H
#define _RAMFS_H
#include <prex/prex.h>
#include <sys/types.h>
/* #define DEBUG_RAMFS 1 */
#ifdef DEBUG_RAMFS
#define DPRINTF(a) dprintf a
#define ASSERT(e) assert(e)
#else
#define DPRINTF(a) do {} while (0)
#define ASSERT(e)
#endif
#if CONFIG_FS_THREADS > 1
#define malloc(s) malloc_r(s)
#define free(p) free_r(p)
#else
#define mutex_init(m) do {} while (0)
#define mutex_destroy(m) do {} while (0)
#define mutex_lock(m) do {} while (0)
#define mutex_unlock(m) do {} while (0)
#define mutex_trylock(m) do {} while (0)
#endif
/*
* File/directory node for RAMFS
*/
struct ramfs_node {
struct ramfs_node *rn_next; /* next node in the same directory */
struct ramfs_node *rn_child; /* first child node */
int rn_type; /* file or directory */
char *rn_name; /* name (null-terminated) */
size_t rn_namelen; /* length of name not including terminator */
size_t rn_size; /* file size */
char *rn_buf; /* buffer to the file data */
size_t rn_bufsize; /* allocated buffer size */
};
extern struct ramfs_node *ramfs_allocate_node(char *name, int type);
extern void ramfs_free_node(struct ramfs_node *node);
#endif /* !_RAMFS_H */