diff options
Diffstat (limited to 'nuttx/fs/nxffs/nxffs_dirent.c')
| -rw-r--r-- | nuttx/fs/nxffs/nxffs_dirent.c | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/nuttx/fs/nxffs/nxffs_dirent.c b/nuttx/fs/nxffs/nxffs_dirent.c deleted file mode 100644 index 221549438..000000000 --- a/nuttx/fs/nxffs/nxffs_dirent.c +++ /dev/null @@ -1,217 +0,0 @@ -/**************************************************************************** - * fs/nxffs/nxffs_dirent.c - * - * Copyright (C) 2011 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * References: Linux/Documentation/filesystems/romfs.txt - * - * 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 NuttX 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. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -#include <string.h> -#include <dirent.h> -#include <assert.h> -#include <errno.h> -#include <debug.h> - -#include <nuttx/fs/fs.h> -#include <nuttx/mtd.h> -#include <nuttx/fs/dirent.h> - -#include "nxffs.h" - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -/**************************************************************************** - * Public Types - ****************************************************************************/ - -/**************************************************************************** - * Public Variables - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: nxffs_opendir - * - * Description: - * Open a directory for read access - * - ****************************************************************************/ - -int nxffs_opendir(FAR struct inode *mountpt, FAR const char *relpath, - FAR struct fs_dirent_s *dir) -{ - struct nxffs_volume_s *volume; - int ret; - - fvdbg("relpath: \"%s\"\n", relpath ? relpath : "NULL"); - - /* Sanity checks */ - - DEBUGASSERT(mountpt != NULL && mountpt->i_private != NULL); - - /* Recover the file system state from the NuttX inode instance */ - - volume = mountpt->i_private; - ret = sem_wait(&volume->exclsem); - if (ret != OK) - { - goto errout; - } - - /* The requested directory must be the volume-relative "root" directory */ - - if (relpath && relpath[0] != '\0') - { - ret = -ENOENT; - goto errout_with_semaphore; - } - - /* Set the offset to the offset to the first valid inode */ - - dir->u.nxffs.nx_offset = volume->inoffset; - ret = OK; - -errout_with_semaphore: - sem_post(&volume->exclsem); -errout: - return ret; -} - -/**************************************************************************** - * Name: nxffs_readdir - * - * Description: Read the next directory entry - * - ****************************************************************************/ - -int nxffs_readdir(FAR struct inode *mountpt, FAR struct fs_dirent_s *dir) -{ - FAR struct nxffs_volume_s *volume; - FAR struct nxffs_entry_s entry; - off_t offset; - int ret; - - /* Sanity checks */ - - DEBUGASSERT(mountpt != NULL && mountpt->i_private != NULL); - - /* Recover the file system state from the NuttX inode instance */ - - volume = mountpt->i_private; - ret = sem_wait(&volume->exclsem); - if (ret != OK) - { - goto errout; - } - - /* Read the next inode header from the offset */ - - offset = dir->u.nxffs.nx_offset; - ret = nxffs_nextentry(volume, offset, &entry); - - /* If the read was successful, then handle the reported inode. Note - * that when the last inode has been reported, the value -ENOENT will - * be returned.. which is correct for the readdir() method. - */ - - if (ret == OK) - { - /* Return the filename and file type */ - - fvdbg("Offset %d: \"%s\"\n", entry.hoffset, entry.name); - dir->fd_dir.d_type = DTYPE_FILE; - strncpy(dir->fd_dir.d_name, entry.name, NAME_MAX+1); - - /* Discard this entry and set the next offset. */ - - dir->u.nxffs.nx_offset = nxffs_inodeend(volume, &entry); - nxffs_freeentry(&entry); - ret = OK; - } - - sem_post(&volume->exclsem); -errout: - return ret; -} - -/**************************************************************************** - * Name: nxffs_rewindir - * - * Description: - * Reset directory read to the first entry - * - ****************************************************************************/ - -int nxffs_rewinddir(FAR struct inode *mountpt, FAR struct fs_dirent_s *dir) -{ - FAR struct nxffs_volume_s *volume; - int ret; - - fvdbg("Entry\n"); - - /* Sanity checks */ - - DEBUGASSERT(mountpt != NULL && mountpt->i_private != NULL); - - /* Recover the file system state from the NuttX inode instance */ - - volume = mountpt->i_private; - ret = sem_wait(&volume->exclsem); - if (ret != OK) - { - goto errout; - } - - /* Reset the offset to the FLASH offset to the first valid inode */ - - dir->u.nxffs.nx_offset = volume->inoffset; - ret = OK; - - sem_post(&volume->exclsem); -errout: - return ret; -} |