/// <summary>
/// Filesystem write implementation
/// </summary>
/// <param name="node"></param>
/// <param name="offset"></param>
/// <param name="size"></param>
/// <param name="buffer"></param>
/// <returns></returns>
private static uint writeImpl(Node node, uint offset, uint size, byte[] buffer)
{
IMBRCookie cookie = (IMBRCookie)node.Cookie;
if (offset >= cookie.MaxLBA)
{
return(0);
}
return(cookie.Disk.Write(cookie.Disk, (uint)cookie.Offset + offset, size, buffer));
}
/// <summary>
/// Filesystem read implementation
/// </summary>
/// <param name="node"></param>
/// <param name="offset"></param>
/// <param name="size"></param>
/// <param name="buffer"></param>
/// <returns></returns>
private static uint readImpl(Node node, uint offset, uint size, byte[] buffer)
{
IMBRCookie cookie = (IMBRCookie)node.Cookie;
if (offset >= cookie.MaxLBA)
{
return(0);
}
uint offsetOut = (uint)cookie.Offset + offset;
//Console.WriteLine("READD");
//Console.WriteHex(size);
//Console.WriteLine("");
return(cookie.Disk.Read(cookie.Disk, (uint)cookie.Offset + offset, size, buffer));
}
/// <summary>
/// Read partition from node
/// </summary>
/// <param name="entry">Partition entry</param>
/// <param name="name">Index name</param>
/// <param name="i">Index</param>
public unsafe void ReadPartition(Node disk, MBR_Partition_entry *entry, string name, int i)
{
// Is entry used?
if (entry->StartingHead == 0)
{
return;
}
IMBRCookie cookie = new IMBRCookie();
cookie.Disk = disk;
cookie.MaxLBA = (int)entry->TotalSectors;
cookie.Offset = (int)entry->StartingLBA;
cookie.Size = cookie.MaxLBA * 512;
cookie.Type = entry->SystemID;
// TODO: Fix this!
string insertion = "p";
string index = i.ToString();
string nodeNames = Sharpen.Lib.String.Merge(name, insertion);
string nodeName = Sharpen.Lib.String.Merge(nodeNames, index);
Heap.Free(nodeNames);
Node node = new Node();
node.Cookie = cookie;
node.Read = readImpl;
node.Write = writeImpl;
RootPoint rp = new RootPoint(nodeName, node);
VFS.MountPointDevFS.AddEntry(rp);
Heap.Free(index);
}
