Block_device Class Reference

This is an abstract block device, implemented by things like disk drivers. More...

#include <blockdev.h>

Inherited by Floppy.

Inheritance diagram for Block_device:

[legend]List of all members.

Public Member Functions
virtual void	init ()=0
virtual void	deinit ()=0
bool	read_page (unsigned block, void *data)
bool	write_page (unsigned block, void *data)
virtual bool	read_block (unsigned block, void *data)=0
virtual bool	write_block (unsigned block, void *data)=0
Public Attributes
Size	block_size
Size	total_blocks
Size	blocks_per_page

---

Detailed Description

This is an abstract block device, implemented by things like disk drivers.

---

Member Function Documentation

virtual void Block_device::deinit (   )  [pure virtual]

Deinitialize the device, free data structures, etc. Implemented in Floppy.

virtual void Block_device::init (   )  [pure virtual]

Initialize the device, allocate any necessary data structures, etc. Implemented in Floppy.

virtual bool Block_device::read_block (  unsigned  block, void *  data )  [pure virtual]

Read a block of data from disk into the provided buffer. Implemented in Floppy.

bool Block_device::read_page (  unsigned  block, void *  data )  [inline]

Read a page of data from disk into the provided buffer, starting at the given block.

virtual bool Block_device::write_block (  unsigned  block, void *  data )  [pure virtual]

Write a block of data to disk from the provided buffer. Implemented in Floppy.

bool Block_device::write_page (  unsigned  block, void *  data )  [inline]

Write a page of data to disk from the provided buffer, starting at the given block.

---

Member Data Documentation

Size Block_device::block_size

block size in bytes on this device

Size Block_device::blocks_per_page

blocks per page of memory

Size Block_device::total_blocks

total blocks on this device

---

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

• blockdev.h

---

Torsion Operating System, Copyright (C) 2000-2004 Dan Helfman