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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@15235 27425a3e-05d8-49a3-a47f-9c15f0e5edd8

This commit is contained in:
Giovanni Di Sirio 2021-12-12 14:59:23 +00:00
parent 9c750d6aeb
commit 89b9f068ca
8 changed files with 229 additions and 48 deletions
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11
os/vfs/drivers/overlay/drvoverlay.c
View File

@ -115,13 +115,18 @@ static msg_t match_driver(vfs_overlay_driver_c *odp,
return err;
}
/* TODO */
static msg_t build_path(vfs_overlay_driver_c *drvp,
const char *path,
char *buf) {
(void) drvp;
strcpy(buf, path);
*buf++ = '\0';
/* Copying the prefix, if defined.*/
if (drvp->path_prefix != NULL) {
VFS_RETURN_ON_ERROR(vfs_path_append(buf, drvp->path_prefix));
}
VFS_RETURN_ON_ERROR(vfs_path_append(buf, path));
return VFS_RET_SUCCESS;
}

1
os/vfs/include/vfs.h
View File

@ -86,6 +86,7 @@
/* Base VFS headers.*/
#include "vfserrors.h"
#include "vfsparser.h"
#include "vfspaths.h"
#include "vfsbuffers.h"
#include "vfsnodes.h"
#include "vfsdrivers.h"

14
os/vfs/include/vfserrors.h
View File

@ -92,8 +92,18 @@
/* Module macros. */
/*===========================================================================*/
#define VFS_BREAK_ON_ERROR(err) \
if ((err) < VFS_RET_SUCCESS) break
#define VFS_BREAK_ON_ERROR(err) do { \
if ((err) < VFS_RET_SUCCESS) { \
break; \
} \
} while (false)
#define VFS_RETURN_ON_ERROR(err) do { \
msg_t ret = (err); \
if (ret < VFS_RET_SUCCESS) { \
return ret; \
} \
} while (false)
/*===========================================================================*/
/* External declarations. */

1
os/vfs/include/vfsparser.h
View File

@ -58,7 +58,6 @@ extern "C" {
msg_t vfs_parse_match_separator(const char **pathp);
msg_t vfs_parse_match_end(const char **pathp);
msg_t vfs_parse_get_fname(const char **pathp, char *fname);
size_t vfs_parse_copy_with_separator(char *dst, const char *src);
#ifdef __cplusplus
}
#endif

70
os/vfs/include/vfspaths.h Normal file
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@ -0,0 +1,70 @@
/*
ChibiOS - Copyright (C) 2006,2007,2008,2009,2010,2011,2012,2013,2014,
2015,2016,2017,2018,2019,2020,2021 Giovanni Di Sirio.
This file is part of ChibiOS.
ChibiOS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation version 3 of the License.
ChibiOS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file vfs/include/vfspaths.h
* @brief VFS path utilities header file.
*
* @addtogroup VFS_PATHS
* @{
*/
#ifndef VFSPATHS_H
#define VFSPATHS_H
/*===========================================================================*/
/* Module constants. */
/*===========================================================================*/
/*===========================================================================*/
/* Module pre-compile time settings. */
/*===========================================================================*/
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Module data structures and types. */
/*===========================================================================*/
/*===========================================================================*/
/* Module macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
size_t vfs_path_copy_with_separator(char *dst, const char *src);
msg_t vfs_path_append(char *dst, const char *src);
#ifdef __cplusplus
}
#endif
/*===========================================================================*/
/* Module inline functions. */
/*===========================================================================*/
#endif /* VFSPATHS_H */
/** @} */

42
os/vfs/src/vfsparser.c
View File

@ -136,46 +136,4 @@ msg_t vfs_parse_get_fname(const char **pathp, char *fname) {
}
}
/**
* @brief Copies a path into a destination buffer.
* @details Up to @p VFS_CFG_PATHLEN_MAX characters are copied. A path
* separator is added to the end of the path if not present.
*
* @param[out] dst The destination buffer.
* @param[in] src The source path.
* @return The copied path size not including the final
* zero.
* @retval 0 If the path size exceeded @p VFS_CFG_PATHLEN_MAX.
*/
size_t vfs_parse_copy_with_separator(char *dst, const char *src) {
size_t n = 0U;
char lc = '\0';
/* Copying the path.*/
while ((*dst = *src) != '\0') {
if (n > VFS_CFG_PATHLEN_MAX) {
return 0U;
}
lc = *src++;
dst++;
n++;
}
/* Checking if it is terminated by a separator, if not then adding it.*/
if (lc != '/') {
if (n >= VFS_CFG_PATHLEN_MAX) {
return 0U;
}
*dst++ = '/';
*dst = '\0';
n++;
}
return n;
}
/** @} */

137
os/vfs/src/vfspaths.c Normal file
View File

@ -0,0 +1,137 @@
/*
ChibiOS - Copyright (C) 2006,2007,2008,2009,2010,2011,2012,2013,2014,
2015,2016,2017,2018,2019,2020,2021 Giovanni Di Sirio.
This file is part of ChibiOS.
ChibiOS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation version 3 of the License.
ChibiOS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file vfs/src/chpaths.c
* @brief VFS path utilities code.
*
* @addtogroup VFS_PATHS
* @{
*/
#include "vfs.h"
/*===========================================================================*/
/* Module local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Module exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Module local types. */
/*===========================================================================*/
/*===========================================================================*/
/* Module local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Module local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Module exported functions. */
/*===========================================================================*/
/**
* @brief Copies a path into a destination buffer.
* @details Up to @p VFS_CFG_PATHLEN_MAX characters are copied. A path
* separator is added to the end of the path if not present.
*
* @param[out] dst The destination buffer.
* @param[in] src The source path.
* @return The copied path size not including the final
* zero.
* @retval 0 If the path size exceeded @p VFS_CFG_PATHLEN_MAX.
*/
size_t vfs_path_copy_with_separator(char *dst, const char *src) {
size_t n = 0U;
char lc = '\0';
/* Copying the path.*/
while ((*dst = *src) != '\0') {
if (n > VFS_CFG_PATHLEN_MAX) {
return 0U;
}
lc = *src++;
dst++;
n++;
}
/* Checking if it is terminated by a separator, if not then adding it.*/
if (lc != '/') {
if (n >= VFS_CFG_PATHLEN_MAX) {
return 0U;
}
*dst++ = '/';
*dst = '\0';
n++;
}
return n;
}
msg_t vfs_path_append(char *dst, const char *src) {
size_t n;
/* Current path length.*/
n = strnlen(dst, VFS_CFG_PATHLEN_MAX);
if (n >= VFS_CFG_PATHLEN_MAX) {
return ENAMETOOLONG;
}
/* Making sure to start with a separator in place.*/
if (n == 0U) {
*dst++ = '/';
n++;
}
else {
dst = dst + n;
if (*(dst - 1) != '/') {
*dst++ = '/';
n++;
}
}
/* The appended part needs to not begin with a separator.*/
if (*src == '/') {
src++;
}
/* Appending.*/
while ((*dst++ = *src++) != '\0') {
n++;
if (n > VFS_CFG_PATHLEN_MAX) {
return ENAMETOOLONG;
}
}
*dst = '\0';
return VFS_RET_SUCCESS;
}
/** @} */

1
os/vfs/vfs.mk
View File

@ -1,5 +1,6 @@
# List of all the ChibiOS/VFS files.
VFSSRC := $(CHIBIOS)/os/vfs/src/vfsparser.c \
$(CHIBIOS)/os/vfs/src/vfspaths.c \
$(CHIBIOS)/os/vfs/src/vfsbuffers.c \
$(CHIBIOS)/os/vfs/src/vfs.c \
$(CHIBIOS)/os/vfs/drivers/sfs/drvsfs.c \