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Annotation of prex-old/usr/server/fs/ramfs/ramfs.h, Revision 1.1.1.1

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: #include <sys/syslog.h>
                     36:
                     37: #ifdef DEBUG
                     38: /* #define DEBUG_RAMFS 1 */
                     39: #endif
                     40:
                     41: #ifdef DEBUG_RAMFS
                     42: #define dprintf(fmt, args...)  syslog(LOG_DEBUG, "ramfs: " fmt, ## args)
                     43: #define ASSERT(e)              assert(e)
                     44: #else
                     45: #define dprintf(fmt...)                do {} while (0)
                     46: #define ASSERT(e)
                     47: #endif
                     48:
                     49: #if CONFIG_FS_THREADS > 1
                     50: #define malloc(s)              malloc_r(s)
                     51: #define free(p)                        free_r(p)
                     52: #else
                     53: #define mutex_init(m)          do {} while (0)
                     54: #define mutex_destroy(m)       do {} while (0)
                     55: #define mutex_lock(m)          do {} while (0)
                     56: #define mutex_unlock(m)                do {} while (0)
                     57: #define mutex_trylock(m)       do {} while (0)
                     58: #endif
                     59:
                     60: /*
                     61:  * File/directory node for RAMFS
                     62:  */
                     63: struct ramfs_node {
                     64:        struct  ramfs_node *next;   /* next node in the same directory */
                     65:        struct  ramfs_node *child;  /* first child node */
                     66:        int     type;           /* file or directory */
                     67:        char    *name;          /* name (null-terminated) */
                     68:        size_t  namelen;        /* length of name not including terminator */
                     69:        size_t  size;           /* file size */
                     70:        char    *buf;           /* buffer to the file data */
                     71:        size_t  bufsize;        /* allocated buffer size */
                     72: };
                     73:
                     74: extern struct ramfs_node *ramfs_allocate_node(char *name, int type);
                     75: extern void ramfs_free_node(struct ramfs_node *node);
                     76:
                     77: #endif /* !_RAMFS_H */