Add mount and umount
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@214 42af7a65-404d-4744-a932-0658087f49c3
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@ -59,12 +59,22 @@
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struct file;
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struct file_operations
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{
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/* The device driver open method differs from the mountpoint open method */
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int (*open)(FAR struct file *filp);
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/* The following methods must be identical in signature and position because
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* the struct file_operations and struct mountp_operations are treated like
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* unions.
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*/
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int (*close)(FAR struct file *filp);
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ssize_t (*read)(FAR struct file *filp, char *buffer, size_t buflen);
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ssize_t (*write)(FAR struct file *filp, const char *buffer, size_t buflen);
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off_t (*seek)(FAR struct file *filp, off_t offset, int whence);
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int (*ioctl)(FAR struct file *filp, int cmd, unsigned long arg);
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/* The two structures need not be common after this point */
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};
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/* This structure provides information about the state of a block driver */
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@ -98,14 +108,33 @@ struct block_operations
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* struct file_operations or struct mountpt_operations
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*/
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struct inode;
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struct mountpt_operations
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{
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/* The mountpoint open method differs from the driver open method
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* because it receives the relative path into the mountpoint.
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*/
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int (*open)(FAR struct file *filp, const char *rel_path);
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/* The following methods must be identical in signature and position because
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* the struct file_operations and struct mountp_operations are treated like
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* unions.
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*/
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int (*close)(FAR struct file *filp);
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ssize_t (*read)(FAR struct file *filp, char *buffer, size_t buflen);
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ssize_t (*write)(FAR struct file *filp, const char *buffer, size_t buflen);
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off_t (*seek)(FAR struct file *filp, off_t offset, int whence);
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int (*ioctl)(FAR struct file *filp, int cmd, unsigned long arg);
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/* The two structures need not be common after this point. For the
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* case of struct mountpt_operations, additional operations are included
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* that used only for mounting and unmounting the volume.
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*/
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int (*bind)(FAR struct inode *blkdriver, const void *data, void **handle);
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int (*unbind)(void *handle);
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};
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/* This structure represents one inode in the Nuttx psuedo-file system */
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@ -125,7 +154,7 @@ struct inode
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#ifdef CONFIG_FILE_MODE
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mode_t i_mode; /* Access mode flags */
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#endif
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FAR void *i_private; /* Driver private data */
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FAR void *i_private; /* Per inode driver private data */
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char i_name[1]; /* Name of inode (variable) */
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};
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#define FSNODE_SIZE(n) (sizeof(struct inode) + (n))
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@ -220,11 +249,13 @@ EXTERN STATUS register_blockdriver(const char *path,
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const struct block_operations *bops,
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mode_t mode, void *private);
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/* fs_inoderemove.c *********************************************************/
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/* fs_unregisterdriver.c ****************************************************/
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EXTERN STATUS inode_remove(const char *path);
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#define unregister_driver(p) inode_remove(p)
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#define unregister_blockdriver(p) inode_remove(p)
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EXTERN STATUS unregister_driver(const char *path);
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/* fs_unregisterblockdriver.c ***********************************************/
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EXTERN STATUS unregister_blockdriver(const char *path);
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/* fs_open.c ****************************************************************/
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@ -0,0 +1,78 @@
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/****************************************************************************
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* sys/mount.h
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*
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* Copyright (C) 2007 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name Gregory Nutt nor the names of its contributors may be
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* 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 COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __SYS_MOUNT_H
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#define __SYS_MOUNT_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <sys/types.h>
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/* Mount flags */
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#define MS_RDONLY 1 /* Mount file system read-only */
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/****************************************************************************
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* Public Type Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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EXTERN int mount(const char *source, const char *target,
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const char *filesystemtype, unsigned long mountflags,
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const void *data);
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EXTERN int umount(const char *target);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __SYS_MOUNT_H */
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