#include <Fs/vfs.h>
#include <Fs/Dev/devfs.h>
#include <_null.h>
#include <Mm/kmalloc.h>
#include <Drivers/uart.h>
#include <Fs/vdisk.h>
#include <string.h>
#include <Ipc/postbox.h>
#include <Fs/pipe.h>
#include <Board/RPI3bp/rpi3bp.h>
#include <Hal/AA64/aa64lowlevel.h>

Include dependency graph for vfs.c:

Functions
void	AuVFSInitialise ()
	AuVFSInitialise – initialise the virtual file system.

AuVFSNode *	AuVFSFind (char *path)
	AuVFSFind – Searches a filesystem an return it to the caller.

AU_EXTERN AU_EXPORT void	AuVFSAddFileSystem (AuVFSNode *node)
	AuVFSAddFileSystem – adds a file system to the vfs list.

void	AuVFSRegisterRoot (AuVFSNode *fs)
	AuVFSRegisterRoot – register the root file system.

uint64_t	read_sp ()

AU_EXTERN AU_EXPORT AuVFSNode *	AuVFSOpen (char *path)
	AuVFSOpen – Opens a file.

AU_EXTERN AU_EXPORT int	AuVFSNodeIOControl (AuVFSNode node, int code, void arg)
	AuVFSNodeIOControl – Calls node's iocontrol pointer.

AU_EXTERN AU_EXPORT size_t	AuVFSNodeRead (AuVFSNode node, AuVFSNode file, uint64_t *buffer, uint32_t length)
	AuVFSNodeRead – read from file system.

AU_EXTERN AU_EXPORT void	AuVFSNodeWrite (AuVFSNode node, AuVFSNode file, uint64_t *buffer, uint32_t length)
	AuVFSNodeWrite – write to file system.

AU_EXTERN AU_EXPORT size_t	AuVFSNodeReadBlock (AuVFSNode node, AuVFSNode file, uint64_t *buffer)
	AuVFSNodeReadBlock – read a block size data from file system.

AU_EXTERN AU_EXPORT AuVFSNode *	AuVFSCreateDir (AuVFSNode fsys, char dirname)
	AuVFSCreateDir – creates a new dir.

AU_EXTERN AU_EXPORT AuVFSNode *	AuVFSCreateFile (AuVFSNode fsys, char filename)
	AuVFSCreateFile – create a new file.

int	AuVFSRemoveFile (AuVFSNode fsys, AuVFSNode file)
	AuVFSRemoveFile –remove a file from a file system.

int	AuVFSRemoveDir (AuVFSNode fsys, AuVFSNode file)
	AuVFSRemoveDir – removes an empty directory.

AU_EXTERN AU_EXPORT void	AuVFSNodeClose (AuVFSNode node, AuVFSNode file)
	AuVFSNodeClose – close a file system or file.

AU_EXTERN AU_EXPORT int	AuVFSRemoveFileSystem (AuVFSNode *node)
	AuVFSRemoveFileSystem – removes a file system.

AU_EXTERN AU_EXPORT size_t	AuVFSGetBlockFor (AuVFSNode node, AuVFSNode file, uint64_t offset)
	AuVFSGetBlockFor – returns a block number for certain byte offset of file.

Variables
AuVFSContainer *	__RootContainer

AuVFSNode *	__RootFS

Detailed Description

BSD 2-Clause License

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Function Documentation

◆ AuVFSAddFileSystem()

AU_EXTERN AU_EXPORT void AuVFSAddFileSystem ( AuVFSNode * node )

AuVFSAddFileSystem – adds a file system to the vfs list.

Parameters

node	– file system node to add

◆ AuVFSCreateDir()

AU_EXTERN AU_EXPORT AuVFSNode * AuVFSCreateDir	(	AuVFSNode *	fsys,
		char *	dirname
	)

AuVFSCreateDir – creates a new dir.

Parameters

fsys	– Pointer to file system
dirname	– directory name

Returns: pointer to newly created directory node

◆ AuVFSCreateFile()

AU_EXTERN AU_EXPORT AuVFSNode * AuVFSCreateFile	(	AuVFSNode *	fsys,
		char *	filename
	)

AuVFSCreateFile – create a new file.

Parameters

fsys	– Pointer to file system
filename	– filename

Returns: pointer to newly created file node

◆ AuVFSFind()

AuVFSNode * AuVFSFind ( char * path )

AuVFSFind – Searches a filesystem an return it to the caller.

Parameters

path	– path of the file system

Returns: pointer to file system extracted from path

◆ AuVFSGetBlockFor()

AU_EXTERN AU_EXPORT size_t AuVFSGetBlockFor	(	AuVFSNode *	node,
		AuVFSNode *	file,
		uint64_t	offset
	)

AuVFSGetBlockFor – returns a block number for certain byte offset of file.

Parameters

node	– file system node
file	– pointer to file structure
offset	– byte offset

Returns: block number of that offset

◆ AuVFSInitialise()

void AuVFSInitialise ( )

AuVFSInitialise – initialise the virtual file system.

◆ AuVFSNodeClose()

AU_EXTERN AU_EXPORT void AuVFSNodeClose	(	AuVFSNode *	node,
		AuVFSNode *	file
	)

AuVFSNodeClose – close a file system or file.

Parameters

node	– file system node to use
file	– file to close

◆ AuVFSNodeIOControl()

AU_EXTERN AU_EXPORT int AuVFSNodeIOControl	(	AuVFSNode *	node,
		int	code,
		void *	arg
	)

AuVFSNodeIOControl – Calls node's iocontrol pointer.

Parameters

node	– pointer to fsnode
code	– code to pass
arg	– extra arguments

Returns: return value returned by specific iocontrol handler to the caller

◆ AuVFSNodeRead()

AU_EXTERN AU_EXPORT size_t AuVFSNodeRead	(	AuVFSNode *	node,
		AuVFSNode *	file,
		uint64_t *	buffer,
		uint32_t	length
	)

AuVFSNodeRead – read from file system.

Parameters

node	– file system node to use
file	– file information to use
buffer	– buffer to write to
length	– length of the file

Returns: amount of data being read in bytes

◆ AuVFSNodeReadBlock()

AU_EXTERN AU_EXPORT size_t AuVFSNodeReadBlock	(	AuVFSNode *	node,
		AuVFSNode *	file,
		uint64_t *	buffer
	)

AuVFSNodeReadBlock – read a block size data from file system.

Parameters

node	– file system node to use
file	– file node to use
buffer	– buffer area to read to

Returns: always <= 4kib

◆ AuVFSNodeWrite()

AU_EXTERN AU_EXPORT void AuVFSNodeWrite	(	AuVFSNode *	node,
		AuVFSNode *	file,
		uint64_t *	buffer,
		uint32_t	length
	)

AuVFSNodeWrite – write to file system.

Parameters

node	– file system node to use
file	– file node to use
buffer	– buffer to write
length	– length of the data

◆ AuVFSOpen()

AU_EXTERN AU_EXPORT AuVFSNode * AuVFSOpen ( char * path )

AuVFSOpen – Opens a file.

Parameters

path	– path to open

Returns: pointer to file node, on success

◆ AuVFSRegisterRoot()

void AuVFSRegisterRoot ( AuVFSNode * fs )

AuVFSRegisterRoot – register the root file system.

Parameters

fs	– fsnode to add

◆ AuVFSRemoveDir()

int AuVFSRemoveDir	(	AuVFSNode *	fsys,
		AuVFSNode *	file
	)

AuVFSRemoveDir – removes an empty directory.

AuVFSRemoveFile –remove a file from a file system.

Parameters

fsys	– Pointer to file system
file	– Pointer to directory needs to be deleted

Returns: 0 on success, -1 on failure

◆ AuVFSRemoveFile()

int AuVFSRemoveFile	(	AuVFSNode *	fsys,
		AuVFSNode *	file
	)

AuVFSRemoveFile –remove a file from a file system.

Parameters

fsys	– Pointer to file system
file	– Pointer to file to remove

Returns: 0 on success, -1 on failure

◆ AuVFSRemoveFileSystem()

AU_EXTERN AU_EXPORT int AuVFSRemoveFileSystem ( AuVFSNode * node )

AuVFSRemoveFileSystem – removes a file system.

Parameters

node	– file system node to remove

◆ read_sp()

uint64_t read_sp ( )

extern

Variable Documentation

◆ __RootContainer

AuVFSContainer* __RootContainer

◆ __RootFS

AuVFSNode* __RootFS

Functions

Variables

Detailed Description

Function Documentation

◆ AuVFSAddFileSystem()

◆ AuVFSCreateDir()

◆ AuVFSCreateFile()

◆ AuVFSFind()

◆ AuVFSGetBlockFor()

◆ AuVFSInitialise()

◆ AuVFSNodeClose()

◆ AuVFSNodeIOControl()

◆ AuVFSNodeRead()

◆ AuVFSNodeReadBlock()

◆ AuVFSNodeWrite()

◆ AuVFSOpen()

◆ AuVFSRegisterRoot()

◆ AuVFSRemoveDir()

◆ AuVFSRemoveFile()

◆ AuVFSRemoveFileSystem()

◆ read_sp()

Variable Documentation

◆ __RootContainer

◆ __RootFS