protected virtual void InitializeFileSystems()
{
for (int i = 0; i < mPartitions.Count; i++)
{
string xRootPath = string.Concat(i, VolumeSeparatorChar, DirectorySeparatorChar);
Cosmos.System.FileSystem.FileSystem xFileSystem = null;
switch (Cosmos.System.FileSystem.FileSystem.GetFileSystemType(mPartitions[i]))
{
case FileSystemType.FAT:
xFileSystem = new FatFileSystem(mPartitions[i]);
mFileSystems.Add(new KVP <string, Cosmos.System.FileSystem.FileSystem>(xRootPath, xFileSystem));
break;
default:
FatHelpers.Debug("Unknown filesystem type!");
return;
}
//global::System.Console.Write("i = ");
//global::System.Console.WriteLine(i.ToString());
//global::System.Console.Write("mFileSystems.Count = ");
//global::System.Console.WriteLine(mFileSystems.Count);
var xEntry = mFileSystems[i];
if (xEntry.Key == xRootPath)
{
var xFatFS = (FatFileSystem)xFileSystem;
FatHelpers.Debug("-------File System--------");
FatHelpers.Debug("Bytes per Cluster: " + xFatFS.BytesPerCluster);
FatHelpers.Debug("Bytes per Sector: " + xFatFS.BytesPerSector);
FatHelpers.Debug("Cluster Count: " + xFatFS.ClusterCount);
FatHelpers.Debug("Data Sector: " + xFatFS.DataSector);
FatHelpers.Debug("Data Sector Count: " + xFatFS.DataSectorCount);
FatHelpers.Debug("FAT Sector Count: " + xFatFS.FatSectorCount);
FatHelpers.Debug("FAT Type: " + xFatFS.FatType);
FatHelpers.Debug("Number of FATS: " + xFatFS.NumberOfFATs);
FatHelpers.Debug("Reserved Sector Count: " + xFatFS.ReservedSectorCount);
FatHelpers.Debug("Root Cluster: " + xFatFS.RootCluster);
FatHelpers.Debug("Root Entry Count: " + xFatFS.RootEntryCount);
FatHelpers.Debug("Root Sector: " + xFatFS.RootSector);
FatHelpers.Debug("Root Sector Count: " + xFatFS.RootSectorCount);
FatHelpers.Debug("Sectors per Cluster: " + xFatFS.SectorsPerCluster);
FatHelpers.Debug("Total Sector Count: " + xFatFS.TotalSectorCount);
//Console.WriteLine();
//Console.WriteLine("Mapping Drive C...");
//FatFileSystem.AddMapping("C", mFileSystem);
//SentinelKernel.System.Filesystem.FAT.Listing.FatDirectory dir = new Sys.Filesystem.FAT.Listing.FatDirectory(mFileSystem, "Sentinel");
}
else
{
FatHelpers.Debug("No filesystem found.");
}
}
}
private Directory DoGetDirectory(string aPath, Cosmos.System.FileSystem.FileSystem aFS)
{
if (aFS == null)
{
throw new Exception("File system can not be null.");
}
FatHelpers.Debug("In SentinelVFS.DoGetDirectory");
FatHelpers.Debug("Path = " + aPath);
string[] xPathParts = VFSManager.SplitPath(aPath);
if (xPathParts.Length == 1)
{
return(GetVolume(aFS, aPath));
}
Directory xBaseDirectory = null;
// start at index 1, because 0 is the volume
for (int i = 1; i < xPathParts.Length; i++)
{
var xPathPart = xPathParts[i];
var xPartFound = false;
var xListing = aFS.GetDirectoryListing(xBaseDirectory);
for (int j = 0; j < xListing.Count; j++)
{
var xListingItem = xListing[j];
if (String.Equals(xListingItem.Name, xPathPart, StringComparison.OrdinalIgnoreCase))
{
if (xListingItem is Directory)
{
xBaseDirectory = (Directory)xListingItem;
xPartFound = true;
}
else
{
throw new Exception("Path part '" + xPathPart + "' found, but not a directory!");
}
}
}
if (!xPartFound)
{
throw new Exception("Path part '" + xPathPart + "' not found!");
}
}
return(xBaseDirectory);
}
public Directory GetVolume(Cosmos.System.FileSystem.FileSystem filesystem, string name)
{
return(filesystem.GetRootDirectory(name));
}
/// <summary>
/// Attempts to get a directory entry for a path in a file system.
/// </summary>
/// <param name="aPath">The path.</param>
/// <param name="aFS">The file system.</param>
/// <returns>A directory entry for the path.</returns>
/// <exception cref="ArgumentException">
/// <list type="bullet">
/// <item>Thrown if aPath is null or empty.</item>
/// <item>Thrown when aFS root path is null or empty.</item>
/// <item>Thrown on memory error.</item>
/// <item>Fatal error.</item>
/// </list>
/// </exception>
/// <exception cref="ArgumentNullException">
/// <list type="bullet">
/// <item>Thrown if aFS is null.</item>
/// <item>Thrown when root directory is null.</item>
/// <item>Thrown on memory error.</item>
/// </list>
/// </exception>
/// <exception cref="ArgumentOutOfRangeException">
/// <list type="bullet">
/// <item>Thrown when root directory address is smaller then root directory address.</item>
/// <item>Thrown on memory error.</item>
/// </list>
/// </exception>
/// <exception cref="OverflowException">
/// <list type="bullet">
/// <item>Thrown when aPath is too deep.</item>
/// <item>Thrown when data lenght is greater then Int32.MaxValue.</item>
/// </list>
/// </exception>
/// <exception cref="Exception">
/// <list type="bullet">
/// <item>Thrown when data size invalid.</item>
/// <item>Thrown on invalid directory entry type.</item>
/// <item>Thrown when aPath entry not found.</item>
/// </list>
/// </exception>
/// <exception cref="DecoderFallbackException">Thrown on memory error.</exception>
private DirectoryEntry DoGetDirectoryEntry(string aPath, FileSystem aFS)
{
Global.mFileSystemDebugger.SendInternal("--- CosmosVFS.DoGetDirectoryEntry ---");
if (String.IsNullOrEmpty(aPath))
{
throw new ArgumentException("Argument is null or empty", nameof(aPath));
}
if (aFS == null)
{
throw new ArgumentNullException(nameof(aFS));
}
Global.mFileSystemDebugger.SendInternal("aPath = " + aPath);
string[] xPathParts = VFSManager.SplitPath(aPath);
DirectoryEntry xBaseDirectory = GetVolume(aFS);
if (xPathParts.Length == 1)
{
Global.mFileSystemDebugger.SendInternal("Returning the volume.");
return(xBaseDirectory);
}
// start at index 1, because 0 is the volume
for (int i = 1; i < xPathParts.Length; i++)
{
var xPathPart = xPathParts[i].ToLower();
var xPartFound = false;
var xListing = aFS.GetDirectoryListing(xBaseDirectory);
Global.mFileSystemDebugger.SendInternal("xPathPart = " + xPathPart);
for (int j = 0; j < xListing.Count; j++)
{
var xListingItem = xListing[j];
string xListingItemName = xListingItem.mName.ToLower();
xPathPart = xPathPart.ToLower();
Global.mFileSystemDebugger.SendInternal(xListingItemName);
if (xListingItemName == xPathPart)
{
xBaseDirectory = xListingItem;
Global.mFileSystemDebugger.SendInternal("Now checking: " + xBaseDirectory.mFullPath);
xPartFound = true;
break;
}
}
if (!xPartFound)
{
throw new Exception("Path part '" + xPathPart + "' not found!");
}
}
Global.mFileSystemDebugger.SendInternal("Returning: " + xBaseDirectory.mFullPath);
return(xBaseDirectory);
}
