// DeviceFolder.cpp
// DeviceFolder object for use in devfs
// Author: Josh Holtrop
// Date: 06/03/04
// Modified: 06/09/04

#include "DeviceFolder.h"
#include "Device.h"
#include "lang/LinkedList.h"
#include "kio.h"


void DeviceFolder::ls()
{
	LinkedList<Device>::iterator it = devices.begin();
	while (it != devices.end())
	{
		printf("%c", (*it).type);
		const char *bitmask = "rwxrwxrwx";
		for (dword mask = 0x100; mask; mask = mask >> 1)
		{
			if ((*it).permissions & mask)
				printf("%c", *bitmask);
			else
				printf("-");
			bitmask++;
		}
		printf("\t");
		switch ((*it).type)
		{
		case 'b':
		case 'c':
		default:
			printf("%d, %d\t%s\n", (*it).major, (*it).minor, (*it).name.data());
			break;
		case 'd':
			printf("\t%s/\n", (*it).name.data());
			break;
		case 'l':
			printf("\t%s -> %s\n", (*it).name.data(), (*it).link->data());
			break;
		}
		it++;
	}
}

DeviceFolder::DeviceFolder()
{
}

int DeviceFolder::addDevice(Device dev)
{
	int i = 0;
	LinkedList<Device>::iterator it = devices.begin();
	while ((*it).name < dev.name && it != devices.end())
	{
		it++;
		i++;
	}
	if (it != devices.end())
		if ((*it).name == dev.name)
			return 1;		//name conflict
	devices.insert(i, dev);
	return 0;
}

int DeviceFolder::mkdir(string name, word permissions)
{
	Device dev(name, 0, 0, 'd', permissions);
	return addDevice(dev);
}

int DeviceFolder::mklink(string name, string link)
{
	Device dev(name, 0, 0, 'l', 0777);
	dev.setLink(link);
	return addDevice(dev);
}

int DeviceFolder::mknod(string name, dword major, dword minor, char type, word permissions)
{
	Device dev(name, major, minor, type, permissions);
	return addDevice(dev);
}

int DeviceFolder::size()
{
	return devices.size();
}