131 lines
4.4 KiB
C
131 lines
4.4 KiB
C
/************************************************************
|
|
* fs_internal.h
|
|
*
|
|
* Copyright (C) 2007 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* 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 Gregory Nutt nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
|
|
* COPYRIGHT OWNER 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 __FS_INTERNAL_H
|
|
#define __FS_INTERNAL_H
|
|
|
|
/************************************************************
|
|
* Included Files
|
|
************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
#include <nuttx/fs.h>
|
|
#include <dirent.h>
|
|
#include <nuttx/compiler.h>
|
|
|
|
/************************************************************
|
|
* Definitions
|
|
************************************************************/
|
|
|
|
#define FSNODEFLAG_DELETED 0x00000001
|
|
|
|
/************************************************************
|
|
* Public Types
|
|
************************************************************/
|
|
|
|
/* The internal representation of type DIR is just a
|
|
* container for an inode reference and a dirent structure.
|
|
*/
|
|
|
|
struct internal_dir_s
|
|
{
|
|
struct inode *root; /* The start inode (in case we
|
|
* rewind) */
|
|
struct inode *next; /* The inode to use for the next call
|
|
* to readdir() */
|
|
struct dirent dir; /* Populated using inode when readdir
|
|
* is called */
|
|
};
|
|
|
|
/************************************************************
|
|
* Global Variables
|
|
************************************************************/
|
|
|
|
extern FAR struct inode *root_inode;
|
|
|
|
/************************************************************
|
|
* Pulblic Function Prototypes
|
|
************************************************************/
|
|
|
|
#undef EXTERN
|
|
#if defined(__cplusplus)
|
|
#define EXTERN extern "C"
|
|
extern "C" {
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
/* fs_inode.c ***********************************************/
|
|
|
|
EXTERN void inode_semtake(void);
|
|
EXTERN void inode_semgive(void);
|
|
EXTERN FAR struct inode *inode_search(const char **path,
|
|
FAR struct inode **peer,
|
|
FAR struct inode **parent);
|
|
EXTERN void inode_free(FAR struct inode *node);
|
|
EXTERN const char *inode_nextname(const char *name);
|
|
|
|
|
|
/* fs_inodefind.c ********************************************/
|
|
|
|
EXTERN FAR struct inode *inode_find(const char *path);
|
|
|
|
/* fs_inodefinddir.c *****************************************/
|
|
|
|
EXTERN FAR struct inode *inode_finddir(const char *path);
|
|
|
|
/* fs_inodeaddref.c ******************************************/
|
|
|
|
EXTERN void inode_addref(FAR struct inode *inode);
|
|
|
|
/* fs_inoderelease.c *****************************************/
|
|
|
|
EXTERN void inode_release(FAR struct inode *inode);
|
|
|
|
/* fs_files.c ***********************************************/
|
|
|
|
#if CONFIG_NFILE_DESCRIPTORS >0
|
|
EXTERN void weak_function files_initialize(void);
|
|
EXTERN int files_allocate(FAR struct inode *inode, int oflags, off_t pos);
|
|
EXTERN void files_release(int filedes);
|
|
#endif
|
|
|
|
#undef EXTERN
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif /* __FS_INTERNAL_H */
|