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Annotation of prex/usr/server/fs/ramfs/ramfs.h, Revision 1.1

1.1     ! nbrk        1: /*
        !             2:  * Copyright (c) 2006-2007, Kohsuke Ohtani
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. Neither the name of the author nor the names of any co-contributors
        !            14:  *    may be used to endorse or promote products derived from this software
        !            15:  *    without specific prior written permission.
        !            16:  *
        !            17:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
        !            18:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            19:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            20:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
        !            21:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            22:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            23:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            24:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            25:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            26:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            27:  * SUCH DAMAGE.
        !            28:  */
        !            29:
        !            30: #ifndef _RAMFS_H
        !            31: #define _RAMFS_H
        !            32:
        !            33: #include <prex/prex.h>
        !            34: #include <sys/types.h>
        !            35:
        !            36: /* #define DEBUG_RAMFS 1 */
        !            37:
        !            38: #ifdef DEBUG_RAMFS
        !            39: #define DPRINTF(a)     dprintf a
        !            40: #define ASSERT(e)      assert(e)
        !            41: #else
        !            42: #define DPRINTF(a)     do {} while (0)
        !            43: #define ASSERT(e)
        !            44: #endif
        !            45:
        !            46: #if CONFIG_FS_THREADS > 1
        !            47: #define malloc(s)              malloc_r(s)
        !            48: #define free(p)                        free_r(p)
        !            49: #else
        !            50: #define mutex_init(m)          do {} while (0)
        !            51: #define mutex_destroy(m)       do {} while (0)
        !            52: #define mutex_lock(m)          do {} while (0)
        !            53: #define mutex_unlock(m)                do {} while (0)
        !            54: #define mutex_trylock(m)       do {} while (0)
        !            55: #endif
        !            56:
        !            57: /*
        !            58:  * File/directory node for RAMFS
        !            59:  */
        !            60: struct ramfs_node {
        !            61:        struct  ramfs_node *rn_next;   /* next node in the same directory */
        !            62:        struct  ramfs_node *rn_child;  /* first child node */
        !            63:        int     rn_type;        /* file or directory */
        !            64:        char    *rn_name;       /* name (null-terminated) */
        !            65:        size_t  rn_namelen;     /* length of name not including terminator */
        !            66:        size_t  rn_size;        /* file size */
        !            67:        char    *rn_buf;        /* buffer to the file data */
        !            68:        size_t  rn_bufsize;     /* allocated buffer size */
        !            69: };
        !            70:
        !            71: extern struct ramfs_node *ramfs_allocate_node(char *name, int type);
        !            72: extern void ramfs_free_node(struct ramfs_node *node);
        !            73:
        !            74: #endif /* !_RAMFS_H */