sortix-mirror/sortix/device.h

61 lines
1.4 KiB
C++

/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
This file is part of Sortix.
Sortix is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.
Sortix 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 for more
details.
You should have received a copy of the GNU General Public License along with
Sortix. If not, see <http://www.gnu.org/licenses/>.
device.h
A base class for all devices.
*******************************************************************************/
#ifndef SORTIX_DEVICE_H
#define SORTIX_DEVICE_H
#include <sortix/kernel/kthread.h>
namespace Sortix
{
class Device
{
public:
static const unsigned STREAM = 0;
static const unsigned BUFFER = 1;
static const unsigned VGABUFFER = 2;
static const unsigned FILESYSTEM = 3;
static const unsigned DIRECTORY = 4;
static const unsigned TERMINAL = 5;
public:
Device();
virtual ~Device();
private:
kthread_mutex_t refcountlock;
size_t refcount;
public:
void Refer();
void Unref();
public:
virtual bool IsType(unsigned type) const = 0;
};
}
#endif