disk_helper.h File Reference

Disk access helper class. More...

#include "nul/service_disk.h"

Functions
template<class C >
	alloc_cap ()
	Disk access helper class.
	assert (diskconsumer)
if(res) Logging unsigned	read_write_synch (bool read, unsigned disknum, uint64 start_sector, size_t size)
unsigned	read_synch (unsigned disknum, uint64 start_secotr, size_t size)
unsigned	write_synch (unsigned disknum, uint64 start_secotr, size_t size)
template<class C , unsigned S>
char DiskHelper< C, S > ::disk_buffer[S]	ALIGNED (0x1000)

Variables
KernelSemaphore *	sem = new KernelSemaphore(sem_cap, true)
DiskProtocol::DiskConsumer *	diskconsumer = new (1<<12) DiskProtocol::DiskConsumer()
	res

Detailed Description

Disk access helper class.

Copyright (C) 2012, Michal Sojka sojka.nosp@m.@os..nosp@m.inf.t.nosp@m.u-dr.nosp@m.esden.nosp@m..de Economic rights: Technische Universitaet Dresden (Germany)

This file is part of NUL (NOVA user land).

NUL is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation.

NUL is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License version 2 for more details.

Function Documentation

template<class C , unsigned S>

char DiskHelper<C,S>::disk_buffer [S] ALIGNED

(

0x1000

)

template<class C >

alloc_cap

(

)

Disk access helper class.

It encapsulates disk DMA buffer and provides synchronous read operation.

assert

(

diskconsumer

)

unsigned read_synch	(	unsigned	disknum,
		uint64	start_secotr,
		size_t	size
	)

if (res) Logging unsigned read_write_synch	(	bool	read,
		unsigned	disknum,
		uint64	start_sector,
		size_t	size
	)

unsigned write_synch	(	unsigned	disknum,
		uint64	start_secotr,
		size_t	size
	)

Variable Documentation

DiskProtocol::DiskConsumer* diskconsumer = new (1<<12) DiskProtocol::DiskConsumer()

res

Initial value:

 attach(*BaseProgram::myutcb(), disk_buffer, sizeof(disk_buffer), tmp_cap,
                 diskconsumer, sem)

KernelSemaphore* sem = new KernelSemaphore(sem_cap, true)