Parser improvements, streams adapter driver header.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@15128 27425a3e-05d8-49a3-a47f-9c15f0e5edd8
This commit is contained in:
Giovanni Di Sirio 2021-11-22 16:20:32 +00:00
parent 6c1ff11e02
commit 09747ca593
8 changed files with 161 additions and 4 deletions

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@ -0,0 +1,106 @@
/*
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/drivers/drvstreams.h
* @brief HAL streams VFS driver header.
*
* @addtogroup VFS_DRV_STREAMS
* @details Exposes HAL streams as VFS files.
* @{
*/
#ifndef DRVSTREAMS_H
#define DRVSTREAMS_H
#include "vfs.h"
/*===========================================================================*/
/* Module constants. */
/*===========================================================================*/
/*===========================================================================*/
/* Module pre-compile time settings. */
/*===========================================================================*/
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Module data structures and types. */
/*===========================================================================*/
/**
* @brief Type of a structure representing a VFS driver.
*/
typedef struct vfs_drv_streams vfs_drv_streams_t;
/**
* @brief @p vfs_node_t specific methods.
*/
#define __vfs_drv_streams_methods \
__vfs_driver_methods
/**
* @brief @p vfs_node_t specific data.
*/
#define __vfs_drv_streams_data \
__vfs_driver_data
/**
* @brief @p vfs_node_t virtual methods table.
*/
struct vfs_drv_stream_vmt {
__vfs_drv_streams_methods
};
/**
* @brief TStructure representing a VFS driver.
*/
struct vfs_drv_streams {
/**
* @brief Virtual Methods Table.
*/
const struct vfs_drv_streams_vmt *vmt;
__vfs_drv_streams_data
};
/*===========================================================================*/
/* Module macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
#ifdef __cplusplus
}
#endif
/*===========================================================================*/
/* Module inline functions. */
/*===========================================================================*/
#endif /* DRVSTREAMS_H */
/** @} */

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@ -73,6 +73,14 @@
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
#ifdef __cplusplus
}
#endif
/*===========================================================================*/
/* Module inline functions. */
/*===========================================================================*/

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@ -99,6 +99,10 @@ extern "C" {
}
#endif
/*===========================================================================*/
/* Module inline functions. */
/*===========================================================================*/
#endif /* VFSDRIVERS_H */
/** @} */

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@ -76,6 +76,10 @@ extern "C" {
}
#endif
/*===========================================================================*/
/* Module inline functions. */
/*===========================================================================*/
#endif /* VFSERRORS_H */
/** @} */

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@ -222,6 +222,10 @@ extern "C" {
}
#endif
/*===========================================================================*/
/* Module inline functions. */
/*===========================================================================*/
#endif /* VFSNODES_H */
/** @} */

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@ -61,6 +61,10 @@ extern "C" {
}
#endif
/*===========================================================================*/
/* Module inline functions. */
/*===========================================================================*/
#endif /* VFSPARSE_H */
/** @} */

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@ -130,6 +130,10 @@ extern "C" {
}
#endif
/*===========================================================================*/
/* Module inline functions. */
/*===========================================================================*/
#endif /* VFSSYSTEM_H */
/** @} */

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@ -53,6 +53,11 @@
/* Module exported functions. */
/*===========================================================================*/
/**
* @brief Parses a path separator.
*
* @param[in, out] pathp pointer to the path under parsing
*/
msg_t vfs_parse_separator(const char **pathp) {
msg_t err;
const char *p = *pathp;
@ -68,16 +73,35 @@ msg_t vfs_parse_separator(const char **pathp) {
return err;
}
/**
* @brief Parses a filename element using the restricted Posix set.
* @note Consumes the next path separator, if any.
*
* @param[in, out] pathp pointer to the path under parsing
* @param[out] fname extracted file name
*/
msg_t vfs_parse_filename(const char **pathp, char *fname) {
msg_t err;
msg_t err = VFS_RET_INVALID_PATH;
size_t n;
const char *p = *pathp;
n = 0U;
while (true) {
char c = *p++;
if ((c == '\0') || (c == '/')) {
/* Valid characters for path names.*/
if (!isalnum(c) && (c != '_') && (c != '-') && (c != '.')) {
break;
}
if (c == '/') {
*pathp = p + 1;
*fname = '\0';
err = VFS_RET_SUCCESS;
break;
}
if (c == '\0') {
*pathp = p;
*fname = '\0';
err = VFS_RET_SUCCESS;
@ -85,7 +109,6 @@ msg_t vfs_parse_filename(const char **pathp, char *fname) {
}
if (n > VFS_CFG_MAX_NAMELEN) {
err = VFS_RET_INVALID_PATH;
break;
}