fs_file_system_t Struct Reference

File System interface structure. More...

#include <fs_sys.h>

Data Fields
int(*	open )(struct fs_file_t *filp, const char *fs_path, fs_mode_t flags)
ssize_t(*	read )(struct fs_file_t *filp, void *dest, size_t nbytes)
ssize_t(*	write )(struct fs_file_t *filp, const void *src, size_t nbytes)
int(*	lseek )(struct fs_file_t *filp, off_t off, int whence)
off_t(*	tell )(struct fs_file_t *filp)
int(*	truncate )(struct fs_file_t *filp, off_t length)
int(*	sync )(struct fs_file_t *filp)
int(*	close )(struct fs_file_t *filp)
int(*	opendir )(struct fs_dir_t *dirp, const char *fs_path)
int(*	readdir )(struct fs_dir_t *dirp, struct fs_dirent *entry)
int(*	closedir )(struct fs_dir_t *dirp)
int(*	mount )(struct fs_mount_t *mountp)
int(*	unmount )(struct fs_mount_t *mountp)
int(*	unlink )(struct fs_mount_t *mountp, const char *name)
int(*	rename )(struct fs_mount_t *mountp, const char *from, const char *to)
int(*	mkdir )(struct fs_mount_t *mountp, const char *name)
int(*	stat )(struct fs_mount_t *mountp, const char *path, struct fs_dirent *entry)
int(*	statvfs )(struct fs_mount_t *mountp, const char *path, struct fs_statvfs *stat)

Detailed Description

File System interface structure.

Parameters

open	Opens or creates a file, depending on flags given
read	Reads nbytes number of bytes
write	Writes nbytes number of bytes
lseek	Moves the file position to a new location in the file
tell	Retrieves the current position in the file
truncate	Truncates/expands the file to the new length
sync	Flushes the cache of an open file
close	Flushes the associated stream and closes the file
opendir	Opens an existing directory specified by the path
readdir	Reads directory entries of an open directory
closedir	Closes an open directory
mount	Mounts a file system
unmount	Unmounts a file system
unlink	Deletes the specified file or directory
rename	Renames a file or directory
mkdir	Creates a new directory using specified path
stat	Checks the status of a file or directory specified by the path
statvfs	Returns the total and available space on the file system volume

Field Documentation

close

int(* fs_file_system_t::close) (struct fs_file_t *filp)

closedir

int(* fs_file_system_t::closedir) (struct fs_dir_t *dirp)

lseek

int(* fs_file_system_t::lseek) (struct fs_file_t *filp, off_t off, int whence)

mkdir

int(* fs_file_system_t::mkdir) (struct fs_mount_t *mountp, const char *name)

mount

int(* fs_file_system_t::mount) (struct fs_mount_t *mountp)

open

int(* fs_file_system_t::open) (struct fs_file_t *filp, const char *fs_path, fs_mode_t flags)

opendir

int(* fs_file_system_t::opendir) (struct fs_dir_t *dirp, const char *fs_path)

read

ssize_t(* fs_file_system_t::read) (struct fs_file_t *filp, void *dest, size_t nbytes)

readdir

int(* fs_file_system_t::readdir) (struct fs_dir_t *dirp, struct fs_dirent *entry)

rename

int(* fs_file_system_t::rename) (struct fs_mount_t *mountp, const char *from, const char *to)

stat

int(* fs_file_system_t::stat) (struct fs_mount_t *mountp, const char *path, struct fs_dirent *entry)

statvfs

int(* fs_file_system_t::statvfs) (struct fs_mount_t *mountp, const char *path, struct fs_statvfs *stat)

sync

int(* fs_file_system_t::sync) (struct fs_file_t *filp)

tell

off_t(* fs_file_system_t::tell) (struct fs_file_t *filp)

truncate

int(* fs_file_system_t::truncate) (struct fs_file_t *filp, off_t length)

unlink

int(* fs_file_system_t::unlink) (struct fs_mount_t *mountp, const char *name)

unmount

int(* fs_file_system_t::unmount) (struct fs_mount_t *mountp)

write

ssize_t(* fs_file_system_t::write) (struct fs_file_t *filp, const void *src, size_t nbytes)

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The documentation for this struct was generated from the following file:

• include/fs/fs_sys.h