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vfs: allow filesystem to request absolute paths

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This commit is contained in:
Benjamin Valentin 2022-09-29 22:00:31 +02:00
parent a37fe464d2
commit 49e1720d5c
2 changed files with 12 additions and 1 deletions
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6
sys/include/vfs.h
View File

@ -316,6 +316,11 @@ typedef struct vfs_mount_struct vfs_mount_t;
*/
extern const vfs_file_ops_t mtd_vfs_ops;
/**
* @brief File system always wants the full VFS path
*/
#define VFS_FS_FLAG_WANT_ABS_PATH (1 << 0)
/**
* @brief A file system driver
*/
@ -323,6 +328,7 @@ typedef struct {
const vfs_file_ops_t *f_op; /**< File operations table */
const vfs_dir_ops_t *d_op; /**< Directory operations table */
const vfs_file_system_ops_t *fs_op; /**< File system operations table */
const uint32_t flags; /**< File system flags */
} vfs_file_system_t;
/**

7
sys/vfs/vfs.c
View File

@ -1083,8 +1083,13 @@ static inline int _find_mount(vfs_mount_t **mountpp, const char *name, const cha
atomic_fetch_add(&mountp->open_files, 1);
mutex_unlock(&_mount_mutex);
*mountpp = mountp;
if (rel_path != NULL) {
*rel_path = name + longest_match;
if (mountp->fs->flags & VFS_FS_FLAG_WANT_ABS_PATH) {
*rel_path = name;
} else {
*rel_path = name + longest_match;
}
}
return 0;
}