3f47fd767a
Summary: 1.Add configuration to allocate memory from the specified section 2.Replace all memory operations (kmm_) in the vfs with fs_heap_. When FS_HEAPSIZE > 0, memory is requested for the file system by specifying a configured heap location. By default (i.e. FS_HEAPSIZE=0) fs_heap_ is equivalent to kmm_ Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
1037 lines
28 KiB
C
1037 lines
28 KiB
C
/****************************************************************************
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* fs/smartfs/smartfs_procfs.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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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 <sys/stat.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <assert.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/arch.h>
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#include <nuttx/sched.h>
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#include <nuttx/kmalloc.h>
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#include <nuttx/fs/fs.h>
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#include <nuttx/fs/procfs.h>
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#include <nuttx/fs/ioctl.h>
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#include <nuttx/mtd/smart.h>
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#include <arch/irq.h>
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#include "smartfs.h"
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#include "fs_heap.h"
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#if defined(CONFIG_FS_PROCFS) && !defined(CONFIG_FS_PROCFS_EXCLUDE_SMARTFS)
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/* This enumeration identifies all of the thread attributes that can be
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* accessed via the procfs file system.
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*/
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/* Level 1 is the directory of attributes */
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struct smartfs_level1_s
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{
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struct procfs_dir_priv_s base; /* Base directory private data */
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/* Add context specific data types here for managing the directory
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* open / read / stat, etc.
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*/
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FAR struct smartfs_mountpt_s *mount;
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uint8_t direntry;
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};
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/* This structure describes one open "file" */
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struct smartfs_file_s
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{
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struct procfs_file_s base; /* Base open file structure */
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/* Add context specific data types for managing an open file here */
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struct smartfs_level1_s level1; /* Reference to item being accessed */
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uint16_t offset;
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};
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struct smartfs_procfs_entry_s
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{
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const char *name; /* Name of the directory entry */
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size_t (*read)(FAR struct file *filep, FAR char *buffer, size_t buflen);
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ssize_t (*write)(FAR struct file *filep,
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FAR const char *buffer, size_t buflen);
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uint8_t type;
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};
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/* File system methods */
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static int smartfs_open(FAR struct file *filep, FAR const char *relpath,
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int oflags, mode_t mode);
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static int smartfs_close(FAR struct file *filep);
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static ssize_t smartfs_read(FAR struct file *filep, FAR char *buffer,
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size_t buflen);
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static ssize_t smartfs_write(FAR struct file *filep, FAR const char *buffer,
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size_t buflen);
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static int smartfs_dup(FAR const struct file *oldp,
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FAR struct file *newp);
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static int smartfs_opendir(const char *relpath,
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FAR struct fs_dirent_s **dir);
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static int smartfs_closedir(FAR struct fs_dirent_s *dir);
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static int smartfs_readdir(FAR struct fs_dirent_s *dir,
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FAR struct dirent *entry);
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static int smartfs_rewinddir(FAR struct fs_dirent_s *dir);
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static int smartfs_stat(FAR const char *relpath, FAR struct stat *buf);
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static ssize_t smartfs_debug_write(FAR struct file *filep,
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FAR const char *buffer, size_t buflen);
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static size_t smartfs_status_read(FAR struct file *filep, FAR char *buffer,
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size_t buflen);
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#ifdef CONFIG_MTD_SMART_ALLOC_DEBUG
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static size_t smartfs_mem_read(FAR struct file *filep, FAR char *buffer,
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size_t buflen);
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#endif
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#ifdef CONFIG_MTD_SMART_SECTOR_ERASE_DEBUG
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static size_t smartfs_erasemap_read(FAR struct file *filep,
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FAR char *buffer, size_t buflen);
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#endif
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#ifdef CONFIG_SMARTFS_FILE_SECTOR_DEBUG
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static size_t smartfs_files_read(FAR struct file *filep, FAR char *buffer,
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size_t buflen);
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static const struct smartfs_procfs_entry_s g_direntry[] =
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{
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{ "debuglevel", NULL, smartfs_debug_write, DTYPE_FILE },
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#ifdef CONFIG_MTD_SMART_SECTOR_ERASE_DEBUG
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{ "erasemap", smartfs_erasemap_read, NULL, DTYPE_FILE },
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#endif
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#ifdef CONFIG_MTD_SMART_ALLOC_DEBUG
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{ "mem", smartfs_mem_read, NULL, DTYPE_FILE },
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#endif
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{ "status", smartfs_status_read, NULL, DTYPE_FILE }
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};
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static const uint8_t g_direntrycount = sizeof(g_direntry) /
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sizeof(struct smartfs_procfs_entry_s);
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/* See include/nutts/fs/procfs.h
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* We use the old-fashioned kind of initializers so that this will compile
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* with any compiler.
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*/
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const struct procfs_operations g_smartfs_procfs_operations =
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{
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smartfs_open, /* open */
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smartfs_close, /* close */
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smartfs_read, /* read */
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/* No write supported */
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smartfs_write, /* write */
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NULL, /* poll */
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smartfs_dup, /* dup */
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smartfs_opendir, /* opendir */
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smartfs_closedir, /* closedir */
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smartfs_readdir, /* readdir */
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smartfs_rewinddir, /* rewinddir */
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smartfs_stat /* stat */
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};
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: smartfs_find_dirref
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*
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* Description:
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* Analyse relpath to find the directory reference entry it represents,
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* if any.
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*
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****************************************************************************/
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static int smartfs_find_dirref(FAR const char *relpath,
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FAR struct smartfs_level1_s *level1)
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{
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int ret = -ENOENT;
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FAR struct smartfs_mountpt_s *mount;
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uint16_t x;
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FAR char * str;
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mount = smartfs_get_first_mount();
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/* Skip the "fs/smartfs" portion of relpath */
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if (strncmp(relpath, "fs/smartfs", 10) == 0)
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{
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relpath += 10;
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}
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if (relpath[0] == '/')
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{
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relpath++;
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}
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/* Now test if doing a full dir listing of fs/smartfs */
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if (relpath[0] == '\0')
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{
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/* Save the mount as the first one to display */
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level1->mount = mount;
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level1->base.level = 1;
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level1->base.nentries = 0;
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while (mount != NULL)
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{
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level1->base.nentries++;
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mount = mount->fs_next;
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}
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level1->base.index = 0;
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ret = OK;
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}
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else
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{
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/* Search for the requested entry */
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str = strchr(relpath, '/');
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if (str)
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{
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x = str - relpath;
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}
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else
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{
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x = strlen(relpath);
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}
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while (mount)
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{
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if (strncmp(mount->fs_blkdriver->i_name, relpath, x) == 0)
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{
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/* Found the mount point. Just break */
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break;
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}
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/* Try the next mount */
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mount = mount->fs_next;
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}
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if (mount)
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{
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/* Save the mount and skip it in the relpath */
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ret = OK;
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level1->mount = mount;
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relpath += strlen(mount->fs_blkdriver->i_name);
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if (relpath[0] == '/')
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{
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relpath++;
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}
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/* Test if a level 3 directory entry being requested or not */
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if (relpath[0] == '\0')
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{
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/* Requesting directory listing of a specific SMARTFS mount or
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* entry
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*/
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level1->base.level = 2;
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level1->base.nentries = g_direntrycount;
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level1->base.index = 0;
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}
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else
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{
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/* Find the level 3 directory entry */
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level1->base.level = 3;
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level1->base.nentries = 1;
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level1->base.index = 0;
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level1->direntry = 0;
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while (level1->direntry < g_direntrycount)
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{
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/* Test if this entry matches */
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if (!strcmp(relpath, g_direntry[level1->direntry].name))
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{
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break;
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}
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/* Advance to next entry */
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level1->direntry++;
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}
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/* Test if entry found or not */
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if (level1->direntry == g_direntrycount)
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{
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ret = -ENOENT;
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}
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}
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}
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}
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return ret;
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}
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/****************************************************************************
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* Name: smartfs_open
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****************************************************************************/
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static int smartfs_open(FAR struct file *filep, FAR const char *relpath,
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int oflags, mode_t mode)
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{
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FAR struct smartfs_file_s *priv;
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int ret;
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finfo("Open '%s'\n", relpath);
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/* PROCFS is read-only. Any attempt to open with any kind of write
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* access is not permitted.
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*
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* REVISIT: Write-able proc files could be quite useful.
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*/
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if (((oflags & O_WRONLY) != 0 || (oflags & O_RDONLY) == 0) &&
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(g_smartfs_procfs_operations.write == NULL))
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{
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ferr("ERROR: Only O_RDONLY supported\n");
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return -EACCES;
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}
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/* Allocate a container to hold the task and attribute selection */
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priv = fs_heap_malloc(sizeof(struct smartfs_file_s));
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if (!priv)
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{
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ferr("ERROR: Failed to allocate file attributes\n");
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return -ENOMEM;
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}
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/* Find the directory entry being opened */
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ret = smartfs_find_dirref(relpath, &priv->level1);
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if (ret == -ENOENT)
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{
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/* Entry not found */
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fs_heap_free(priv);
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return ret;
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}
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priv->offset = 0;
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/* Save the index as the open-specific state in filep->f_priv */
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filep->f_priv = (FAR void *)priv;
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return OK;
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}
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/****************************************************************************
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* Name: smartfs_close
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****************************************************************************/
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static int smartfs_close(FAR struct file *filep)
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{
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FAR struct smartfs_file_s *priv;
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/* Recover our private data from the struct file instance */
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priv = (FAR struct smartfs_file_s *)filep->f_priv;
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DEBUGASSERT(priv);
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/* Release the file attributes structure */
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fs_heap_free(priv);
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filep->f_priv = NULL;
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return OK;
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}
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/****************************************************************************
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* Name: smartfs_read
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****************************************************************************/
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static ssize_t smartfs_read(FAR struct file *filep, FAR char *buffer,
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size_t buflen)
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{
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FAR struct smartfs_file_s *priv;
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ssize_t ret;
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finfo("buffer=%p buflen=%d\n", buffer, (int)buflen);
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/* Recover our private data from the struct file instance */
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priv = (FAR struct smartfs_file_s *)filep->f_priv;
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DEBUGASSERT(priv);
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/* Perform the read based on the directory entry */
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ret = 0;
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if (priv->level1.base.level == 3)
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{
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if (priv->level1.direntry < g_direntrycount)
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{
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if (g_direntry[priv->level1.direntry].read)
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{
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ret = g_direntry[priv->level1.direntry].read(filep,
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buffer, buflen);
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}
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}
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}
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/* Update the file offset */
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if (ret > 0)
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{
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filep->f_pos += ret;
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}
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return ret;
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}
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/****************************************************************************
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* Name: smartfs_write
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****************************************************************************/
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static ssize_t smartfs_write(FAR struct file *filep, FAR const char *buffer,
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size_t buflen)
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{
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FAR struct smartfs_file_s *priv;
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ssize_t ret;
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/* Recover our private data from the struct file instance */
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priv = (FAR struct smartfs_file_s *)filep->f_priv;
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DEBUGASSERT(priv);
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/* Perform the write based on the directory entry */
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ret = 0;
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if (priv->level1.base.level == 3)
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{
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if (priv->level1.direntry < g_direntrycount)
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{
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if (g_direntry[priv->level1.direntry].write)
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{
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ret = g_direntry[priv->level1.direntry].write(filep,
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buffer, buflen);
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}
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}
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}
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/* Update the file offset */
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if (ret > 0)
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{
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filep->f_pos += ret;
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}
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return ret;
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}
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/****************************************************************************
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* Name: smartfs_dup
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*
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* Description:
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* Duplicate open file data in the new file structure.
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*
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****************************************************************************/
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static int smartfs_dup(FAR const struct file *oldp, FAR struct file *newp)
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{
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FAR struct smartfs_file_s *oldpriv;
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FAR struct smartfs_file_s *newpriv;
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finfo("Dup %p->%p\n", oldp, newp);
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/* Recover our private data from the old struct file instance */
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oldpriv = (FAR struct smartfs_file_s *)oldp->f_priv;
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DEBUGASSERT(oldpriv);
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/* Allocate a new container to hold the task and attribute selection */
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newpriv = fs_heap_malloc(sizeof(struct smartfs_file_s));
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if (!newpriv)
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{
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ferr("ERROR: Failed to allocate file attributes\n");
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return -ENOMEM;
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}
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/* The copy the file attribute from the old attributes to the new */
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memcpy(newpriv, oldpriv, sizeof(struct smartfs_file_s));
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/* Save the new attributes in the new file structure */
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newp->f_priv = (FAR void *)newpriv;
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return OK;
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}
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|
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/****************************************************************************
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* Name: smartfs_opendir
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*
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* Description:
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* Open a directory for read access
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*
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****************************************************************************/
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static int smartfs_opendir(FAR const char *relpath,
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FAR struct fs_dirent_s **dir)
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{
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FAR struct smartfs_level1_s *level1;
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int ret;
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finfo("relpath: \"%s\"\n", relpath ? relpath : "NULL");
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DEBUGASSERT(relpath);
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/* The path refers to the 1st level subdirectory. Allocate the level1
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* dirent structure.
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*/
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level1 = (FAR struct smartfs_level1_s *)
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fs_heap_malloc(sizeof(struct smartfs_level1_s));
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if (!level1)
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{
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ferr("ERROR: Failed to allocate the level1 directory structure\n");
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return -ENOMEM;
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}
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/* Initialize base structure components */
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ret = smartfs_find_dirref(relpath, level1);
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if (ret == OK)
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{
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*dir = (FAR struct fs_dirent_s *)level1;
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}
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else
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{
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fs_heap_free(level1);
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}
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return ret;
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}
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|
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/****************************************************************************
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* Name: smartfs_closedir
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*
|
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* Description: Close the directory listing
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*
|
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****************************************************************************/
|
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|
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static int smartfs_closedir(FAR struct fs_dirent_s *dir)
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{
|
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DEBUGASSERT(dir);
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|
fs_heap_free(dir);
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: smartfs_readdir
|
|
*
|
|
* Description: Read the next directory entry
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int smartfs_readdir(FAR struct fs_dirent_s *dir,
|
|
FAR struct dirent *entry)
|
|
{
|
|
FAR struct smartfs_level1_s *level1;
|
|
int ret;
|
|
int index;
|
|
|
|
DEBUGASSERT(dir);
|
|
level1 = (FAR struct smartfs_level1_s *)dir;
|
|
|
|
/* Have we reached the end of the directory */
|
|
|
|
index = level1->base.index;
|
|
if (index >= level1->base.nentries)
|
|
{
|
|
/* We signal the end of the directory by returning the special
|
|
* error -ENOENT
|
|
*/
|
|
|
|
finfo("Entry %d: End of directory\n", index);
|
|
ret = -ENOENT;
|
|
}
|
|
|
|
/* We are traversing a subdirectory of task attributes */
|
|
|
|
else
|
|
{
|
|
DEBUGASSERT(level1->base.level >= 1);
|
|
|
|
/* Test the type of directory listing */
|
|
|
|
if (level1->base.level == 1)
|
|
{
|
|
/* Listing the top level (mounted smartfs volumes) */
|
|
|
|
if (!level1->mount)
|
|
{
|
|
return -ENOENT;
|
|
}
|
|
|
|
entry->d_type = DTYPE_DIRECTORY;
|
|
strlcpy(entry->d_name, level1->mount->fs_blkdriver->i_name,
|
|
sizeof(entry->d_name));
|
|
|
|
/* Advance to next entry */
|
|
|
|
level1->base.index++;
|
|
level1->mount = level1->mount->fs_next;
|
|
}
|
|
else if (level1->base.level == 2)
|
|
{
|
|
/* Listing the contents of a specific mount */
|
|
|
|
entry->d_type = g_direntry[level1->base.index].type;
|
|
strlcpy(entry->d_name, g_direntry[level1->base.index++].name,
|
|
sizeof(entry->d_name));
|
|
}
|
|
else if (level1->base.level == 3)
|
|
{
|
|
/* Listing the contents of a specific entry */
|
|
|
|
entry->d_type = g_direntry[level1->base.index].type;
|
|
strlcpy(entry->d_name, g_direntry[level1->direntry].name,
|
|
sizeof(entry->d_name));
|
|
level1->base.index++;
|
|
}
|
|
|
|
/* Set up the next directory entry offset. NOTE that we could use the
|
|
* standard f_pos instead of our own private index.
|
|
*/
|
|
|
|
ret = OK;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: smartfs_rewindir
|
|
*
|
|
* Description: Reset directory read to the first entry
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int smartfs_rewinddir(struct fs_dirent_s *dir)
|
|
{
|
|
FAR struct smartfs_level1_s *priv;
|
|
|
|
DEBUGASSERT(dir);
|
|
priv = (FAR struct smartfs_level1_s *)dir;
|
|
|
|
priv->base.index = 0;
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: smartfs_stat
|
|
*
|
|
* Description: Return information about a file or directory
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int smartfs_stat(const char *relpath, struct stat *buf)
|
|
{
|
|
int ret;
|
|
struct smartfs_level1_s level1;
|
|
|
|
/* Decide if the relpath is valid and if it is a file
|
|
* or a directory and set it's permissions.
|
|
*/
|
|
|
|
ret = smartfs_find_dirref(relpath, &level1);
|
|
|
|
buf->st_mode = S_IROTH | S_IRGRP | S_IRUSR;
|
|
if (ret == OK)
|
|
{
|
|
if (level1.base.level < 3)
|
|
{
|
|
buf->st_mode |= S_IFDIR;
|
|
}
|
|
else
|
|
{
|
|
/* The entry being stat'ed is lowest level */
|
|
|
|
if (g_direntry[level1.direntry].type == DTYPE_DIRECTORY)
|
|
{
|
|
buf->st_mode |= S_IFDIR;
|
|
}
|
|
else
|
|
{
|
|
buf->st_mode |= S_IFREG;
|
|
}
|
|
|
|
/* Test if the entry is writable */
|
|
|
|
if (g_direntry[level1.direntry].write != NULL)
|
|
{
|
|
buf->st_mode |= S_IWOTH | S_IWGRP | S_IWUSR;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* File/directory size, access block size */
|
|
|
|
buf->st_size = 0;
|
|
buf->st_blksize = 0;
|
|
buf->st_blocks = 0;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: smartfs_debug_write
|
|
*
|
|
* Description: Performs the write operation for the "debug" file
|
|
*
|
|
****************************************************************************/
|
|
|
|
static ssize_t smartfs_debug_write(FAR struct file *filep,
|
|
FAR const char *buffer, size_t buflen)
|
|
{
|
|
struct mtd_smart_debug_data_s debug_data;
|
|
FAR struct smartfs_file_s *priv;
|
|
|
|
priv = (FAR struct smartfs_file_s *) filep->f_priv;
|
|
|
|
/* Populate the debug_data structure */
|
|
|
|
debug_data.debugcmd = SMART_DEBUG_CMD_SET_DEBUG_LEVEL;
|
|
debug_data.debugdata = atoi(buffer);
|
|
|
|
priv->level1.mount->fs_blkdriver->u.i_bops->ioctl(
|
|
priv->level1.mount->fs_blkdriver, BIOC_DEBUGCMD,
|
|
(unsigned long) &debug_data);
|
|
|
|
return buflen;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: smartfs_status_read
|
|
*
|
|
* Description: Performs the read operation for the "status" dir entry.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static size_t smartfs_status_read(FAR struct file *filep, FAR char *buffer,
|
|
size_t buflen)
|
|
{
|
|
struct mtd_smart_procfs_data_s procfs_data;
|
|
FAR struct smartfs_file_s *priv;
|
|
int ret;
|
|
size_t len;
|
|
int utilization;
|
|
|
|
priv = (FAR struct smartfs_file_s *) filep->f_priv;
|
|
|
|
/* Initialize the read length to zero and test if we are at the
|
|
* end of the file (i.e. already read the data.
|
|
*/
|
|
|
|
len = 0;
|
|
if (priv->offset == 0)
|
|
{
|
|
/* Get the ProcFS data from the block driver */
|
|
|
|
ret = priv->level1.mount->fs_blkdriver->u.i_bops->ioctl(
|
|
priv->level1.mount->fs_blkdriver, BIOC_GETPROCFSD,
|
|
(unsigned long) &procfs_data);
|
|
|
|
if (ret == OK)
|
|
{
|
|
/* Calculate the sector utilization percentage */
|
|
|
|
if (procfs_data.blockerases == 0)
|
|
{
|
|
utilization = 100;
|
|
}
|
|
else
|
|
{
|
|
utilization = 100 * (procfs_data.blockerases *
|
|
procfs_data.sectorsperblk -
|
|
procfs_data.unusedsectors) /
|
|
(procfs_data.blockerases *
|
|
procfs_data.sectorsperblk);
|
|
}
|
|
|
|
/* Format and return data in the buffer */
|
|
|
|
len = snprintf(buffer, buflen,
|
|
"Format version: %d\nName Len: %d\n"
|
|
"Total Sectors: %d\nSector Size: %d\n"
|
|
"Format Sector: %d\nDir Sector: %d\n"
|
|
"Free Sectors: %d\nReleased Sectors: %d\n"
|
|
"Unused Sectors: %" PRIu32 "\n"
|
|
"Block Erases: %" PRIu32 "\n"
|
|
"Sectors Per Block: %d\nSector Utilization:%d%%\n"
|
|
#ifdef CONFIG_MTD_SMART_WEAR_LEVEL
|
|
"Uneven Wear Count: %" PRIu32 "\n"
|
|
#endif
|
|
,
|
|
procfs_data.formatversion, procfs_data.namelen,
|
|
procfs_data.totalsectors, procfs_data.sectorsize,
|
|
procfs_data.formatsector, procfs_data.dirsector,
|
|
procfs_data.freesectors, procfs_data.releasesectors,
|
|
procfs_data.unusedsectors, procfs_data.blockerases,
|
|
procfs_data.sectorsperblk, utilization
|
|
#ifdef CONFIG_MTD_SMART_WEAR_LEVEL
|
|
, procfs_data.uneven_wearcount
|
|
#endif
|
|
);
|
|
}
|
|
|
|
/* Indicate we have already provided all the data */
|
|
|
|
priv->offset = 0xff;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: smartfs_mem_read
|
|
*
|
|
* Description: Performs the read operation for the "mem" dir entry.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_MTD_SMART_ALLOC_DEBUG
|
|
static size_t smartfs_mem_read(FAR struct file *filep, FAR char *buffer,
|
|
size_t buflen)
|
|
{
|
|
struct mtd_smart_procfs_data_s procfs_data;
|
|
FAR struct smartfs_file_s *priv;
|
|
int ret;
|
|
uint16_t x;
|
|
size_t len;
|
|
size_t total;
|
|
|
|
priv = (FAR struct smartfs_file_s *) filep->f_priv;
|
|
|
|
/* Initialize the read length to zero and test if we are at the
|
|
* end of the file (i.e. already read the data.
|
|
*/
|
|
|
|
len = 0;
|
|
if (priv->offset == 0)
|
|
{
|
|
/* Get the ProcFS data from the block driver */
|
|
|
|
ret = priv->level1.mount->fs_blkdriver->u.i_bops->ioctl(
|
|
priv->level1.mount->fs_blkdriver, BIOC_GETPROCFSD,
|
|
(unsigned long) &procfs_data);
|
|
|
|
if (ret == OK)
|
|
{
|
|
/* Print the allocations to the buffer */
|
|
|
|
total = 0;
|
|
len = snprintf(buffer, buflen, "Allocations:\n");
|
|
buflen -= len;
|
|
for (x = 0; x < procfs_data.alloccount; x++)
|
|
{
|
|
/* Only print allocations with a non-NULL pointer */
|
|
|
|
if (procfs_data.allocs[x].ptr != NULL)
|
|
{
|
|
len += snprintf(&buffer[len], buflen - len, " %s: %d\n",
|
|
procfs_data.allocs[x].name, procfs_data.allocs[x].size);
|
|
total += procfs_data.allocs[x].size;
|
|
}
|
|
}
|
|
|
|
/* Add the total allocation amount to the buffer */
|
|
|
|
len += snprintf(&buffer[len], buflen - len,
|
|
"\nTotal: %d\n", total);
|
|
}
|
|
|
|
/* Indicate we have done the read */
|
|
|
|
priv->offset = 0xff;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: smartfs_erasemap_read
|
|
*
|
|
* Description: Performs the read operation for the "erase" dir entry.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_MTD_SMART_SECTOR_ERASE_DEBUG
|
|
static size_t smartfs_erasemap_read(FAR struct file *filep,
|
|
FAR char *buffer, size_t buflen)
|
|
{
|
|
struct mtd_smart_procfs_data_s procfs_data;
|
|
FAR struct smartfs_file_s *priv;
|
|
int ret;
|
|
int rows;
|
|
int cols;
|
|
size_t x;
|
|
size_t y;
|
|
size_t len;
|
|
size_t copylen;
|
|
|
|
priv = (FAR struct smartfs_file_s *) filep->f_priv;
|
|
|
|
/* Get the ProcFS data from the block driver */
|
|
|
|
ret = priv->level1.mount->fs_blkdriver->u.i_bops->ioctl(
|
|
priv->level1.mount->fs_blkdriver, BIOC_GETPROCFSD,
|
|
(unsigned long) &procfs_data);
|
|
if (ret != OK)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* Initialize the read length to zero and test if we are at the
|
|
* end of the file (i.e. already read the data).
|
|
*/
|
|
|
|
len = 0;
|
|
rows = 32;
|
|
cols = procfs_data.neraseblocks / rows;
|
|
while (rows >= 4 && (cols < 64 || cols > 128))
|
|
{
|
|
rows >>= 1;
|
|
cols = procfs_data.neraseblocks / rows;
|
|
}
|
|
|
|
/* Continue sending data until everything sent. We add 'rows' below to
|
|
* account for the \n at the end of each line.
|
|
*/
|
|
|
|
if (priv->offset < procfs_data.neraseblocks + rows)
|
|
{
|
|
/* copylen keeps track of the current length. When it is
|
|
* equal to or greater than the offset, we start sending data
|
|
* again. Basically we are starting at the beginning each time
|
|
* and only sending where we left off and discarding the rest.
|
|
*/
|
|
|
|
copylen = 0;
|
|
for (y = 0; y < rows; y++)
|
|
{
|
|
for (x = 0; x < cols; x++)
|
|
{
|
|
/* Copy data to the buffer */
|
|
|
|
if (copylen >= priv->offset)
|
|
{
|
|
buffer[len++] =
|
|
procfs_data.erasecounts[y * cols + x] + 'A';
|
|
priv->offset++;
|
|
|
|
if (len >= buflen)
|
|
{
|
|
return len;
|
|
}
|
|
}
|
|
|
|
copylen++;
|
|
}
|
|
|
|
/* Add a trailing \n */
|
|
|
|
if (copylen >= priv->offset)
|
|
{
|
|
buffer[len++] = '\n';
|
|
priv->offset++;
|
|
if (len >= buflen)
|
|
{
|
|
return len;
|
|
}
|
|
}
|
|
|
|
/* Terminate the string */
|
|
|
|
if (copylen >= priv->offset)
|
|
{
|
|
buffer[len++] = '\0';
|
|
priv->offset++;
|
|
}
|
|
|
|
copylen++;
|
|
}
|
|
}
|
|
|
|
return len;
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
#endif /* CONFIG_FS_PROCFS && !CONFIG_FS_PROCFS_EXCLUDE_SMARTFS */
|