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153 lines
5.8 KiB
153 lines
5.8 KiB
/**************************************************************************** |
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* fs/fs_internal.h |
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* |
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* Copyright (C) 2007, 2009, 2012 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <gnutt@nuttx.org> |
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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 NuttX 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 __FS_FS_INTERNAL_H |
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#define __FS_FS_INTERNAL_H |
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/**************************************************************************** |
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* Included Files |
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****************************************************************************/ |
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#include <nuttx/config.h> |
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#include <sys/types.h> |
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#include <stdint.h> |
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#include <dirent.h> |
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#include <nuttx/fs/fs.h> |
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#include <nuttx/compiler.h> |
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/**************************************************************************** |
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* Pre-processor Definitions |
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****************************************************************************/ |
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#define FSNODEFLAG_TYPE_MASK 0x00000003 |
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#define FSNODEFLAG_TYPE_DRIVER 0x00000000 |
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#define FSNODEFLAG_TYPE_BLOCK 0x00000001 |
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#define FSNODEFLAG_TYPE_MOUNTPT 0x00000002 |
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#define FSNODEFLAG_DELETED 0x00000004 |
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#define INODE_IS_DRIVER(i) \ |
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(((i)->i_flags & FSNODEFLAG_TYPE_MASK) == FSNODEFLAG_TYPE_DRIVER) |
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#define INODE_IS_BLOCK(i) \ |
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(((i)->i_flags & FSNODEFLAG_TYPE_BLOCK) == FSNODEFLAG_TYPE_BLOCK) |
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#define INODE_IS_MOUNTPT(i) \ |
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(((i)->i_flags & FSNODEFLAG_TYPE_MOUNTPT) == FSNODEFLAG_TYPE_MOUNTPT) |
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#define INODE_SET_DRIVER(i) \ |
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((i)->i_flags &= ~FSNODEFLAG_TYPE_MASK) |
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#define INODE_SET_BLOCK(i) \ |
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((i)->i_flags = (((i)->i_flags & ~FSNODEFLAG_TYPE_MASK) | FSNODEFLAG_TYPE_BLOCK)) |
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#define INODE_SET_MOUNTPT(i) \ |
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((i)->i_flags = (((i)->i_flags & ~FSNODEFLAG_TYPE_MASK) | FSNODEFLAG_TYPE_MOUNTPT)) |
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/* Mountpoint fd_flags values */ |
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#define DIRENTFLAGS_PSUEDONODE 1 |
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#define DIRENT_SETPSUEDONODE(f) do (f) |= DIRENTFLAGS_PSUEDONODE; while (0) |
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#define DIRENT_ISPSUEDONODE(f) (((f) & DIRENTFLAGS_PSUEDONODE) != 0) |
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/**************************************************************************** |
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* Public Types |
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****************************************************************************/ |
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/**************************************************************************** |
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* Global Variables |
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****************************************************************************/ |
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extern FAR struct inode *root_inode; |
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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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/* fs_inode.c ***************************************************************/ |
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EXTERN void inode_semtake(void); |
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EXTERN void inode_semgive(void); |
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EXTERN FAR struct inode *inode_search(FAR const char **path, |
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FAR struct inode **peer, |
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FAR struct inode **parent, |
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FAR const char **relpath); |
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EXTERN void inode_free(FAR struct inode *node); |
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EXTERN const char *inode_nextname(FAR const char *name); |
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/* fs_inodereserver.c ********************************************************/ |
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EXTERN int inode_reserve(FAR const char *path, FAR struct inode **inode); |
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/* fs_inoderemove.c **********************************************************/ |
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EXTERN int inode_remove(FAR const char *path); |
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/* fs_inodefind.c ************************************************************/ |
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EXTERN FAR struct inode *inode_find(FAR const char *path, const char **relpath); |
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/* fs_inodeaddref.c **********************************************************/ |
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EXTERN void inode_addref(FAR struct inode *inode); |
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/* fs_inoderelease.c *********************************************************/ |
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EXTERN void inode_release(FAR struct inode *inode); |
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/* fs_files.c ****************************************************************/ |
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EXTERN void weak_function files_initialize(void); |
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EXTERN int files_allocate(FAR struct inode *inode, int oflags, off_t pos, int minfd); |
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EXTERN int files_close(int filedes); |
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EXTERN void files_release(int filedes); |
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/* fs_findblockdriver.c ******************************************************/ |
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EXTERN int find_blockdriver(FAR const char *pathname, int mountflags, |
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FAR struct inode **ppinode); |
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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 /* __FS_FS_INTERNAL_H */
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