Storage Class Reference

Provides a storage device to build filesystems on top. More...

#include <Storage.h>

Inheritance diagram for Storage:

Public Member Functions
	Storage ()
	Constructor function. More...
virtual	~Storage ()
	Destructor function. More...
virtual FileSystem::Result	initialize ()=0
	Initialize the Storage device. More...
virtual FileSystem::Result	read (const u64 offset, void *buffer, const Size size) const =0
	Read a contiguous set of data. More...
virtual FileSystem::Result	write (const u64 offset, void *buffer, const Size size)
	Write a contiguous set of data. More...
virtual u64	capacity () const =0
	Retrieve maximum storage capacity. More...

Detailed Description

Provides a storage device to build filesystems on top.

Definition at line 35 of file Storage.h.

Constructor & Destructor Documentation

Storage()

Storage::Storage

(

)

Constructor function.

Definition at line 21 of file Storage.cpp.

~Storage()

Storage::~Storage ( )

virtual

Destructor function.

Definition at line 25 of file Storage.cpp.

Member Function Documentation

capacity()

virtual u64 Storage::capacity ( ) const

pure virtual

Retrieve maximum storage capacity.

Returns

Storage capacity.

Implemented in FileStorage, BootImageStorage, and BootSymbolStorage.

initialize()

virtual FileSystem::Result Storage::initialize ( )

pure virtual

Initialize the Storage device.

Returns

Result code

Implemented in BootImageStorage, BootSymbolStorage, and FileStorage.

read()

virtual FileSystem::Result Storage::read ( const u64  offset, void *  buffer, const Size  size  ) const

pure virtual

Read a contiguous set of data.

Parameters

offset	Offset to start reading from.
buffer	Output buffer.
size	Number of bytes to copied.

Returns

Result code

Implemented in BootImageStorage, BootSymbolStorage, and FileStorage.

Referenced by LinnFileSystem::getInode(), LinnDirectory::getLinnDirectoryEntry(), LinnFileSystem::getOffsetRange(), LinnFileSystem::LinnFileSystem(), LinnFile::read(), and LinnDirectory::read().

write()

FileSystem::Result Storage::write ( const u64  offset, void *  buffer, const Size  size  )

virtual

Write a contiguous set of data.

Parameters

offset	Offset to start writing to.
buffer	Input buffer.
size	Number of bytes to written.

Returns

Result code

Reimplemented in FileStorage.

Definition at line 29 of file Storage.cpp.

References FileSystem::NotSupported.

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The documentation for this class was generated from the following files:

• lib/libfs/Storage.h
• lib/libfs/Storage.cpp