/// <summary>
/// Deletes the listing from the file system.
/// </summary>
/// <returns>True if the listing was deleted. Otherwise, false.</returns>
public override bool Delete()
{
if (TheFATFileSystem.FATType != FATFileSystem.FATTypeEnum.FAT32)
{
ExceptionMethods.Throw(new Exceptions.NotSupportedException("FATFile.Delete for non-FAT32 not supported!"));
}
#if FATFILE_TRACE
BasicConsole.WriteLine("FATFile.Delete : Reading cluster chain...");
#endif
UInt32List clusters = TheFATFileSystem.ReadClusterChain(Size, FirstClusterNum);
#if FATFILE_TRACE
BasicConsole.WriteLine("FATFile.Delete : Processing cluster chain...");
#endif
for (int i = 0; i < clusters.Count; i++)
{
#if FATFILE_TRACE
BasicConsole.WriteLine("FATFile.Delete : Writing cluster...");
#endif
//Write 0s (null) to clusters
TheFATFileSystem.WriteCluster(clusters[i], null);
#if FATFILE_TRACE
BasicConsole.WriteLine("FATFile.Delete : Setting FAT entry...");
#endif
//Write "empty" to FAT entries
TheFATFileSystem.SetFATEntryAndSave(clusters[i], 0);
}
//If the file actually being used to read/write a FATDirectory,
// it will not be in the parent listings, the FATDirectory instance will be.
// So we should not attempt to edit the parent listings from within the
// FATFile instance.
if (!IsDirectoryFile)
{
#if FATFILE_TRACE
BasicConsole.WriteLine("FATFile.Delete : Removing listing...");
#endif
//Remove listing
Parent.RemoveListing(this);
#if FATFILE_TRACE
BasicConsole.WriteLine("FATFile.Delete : Writing listings...");
#endif
//Write listings
Parent.WriteListings();
}
#if FATFILE_TRACE
BasicConsole.WriteLine("FATFile.Delete : Complete.");
#endif
return(true);
}
