public override Stream GetStream(bool decompress = true)
{
var stream = mStream;
if (IsCompressed && decompress)
{
if (mDecompressedStream == null)
{
var compression = new LBCompression();
mDecompressedStream = compression.Decompress(mStream);
}
stream = mDecompressedStream;
}
return(new StreamView(stream, 0, stream.Length));
}
public override Stream GetStream(bool decompress = true)
{
if (decompress && IsCompressed)
{
if (mDecompressedStream == null)
{
var compression = new LBCompression();
mDecompressedStream = compression.Decompress(new StreamView(mBaseStream, Offset, Length), DecompressedLength);
}
return(mDecompressedStream);
}
else
{
return(new StreamView(mBaseStream, Offset, Length));
}
}
public void AddFile(int handle, short userId, Stream stream, bool ownsStream, ConflictPolicy policy)
{
bool replacing = false;
if (mEntryMap.TryGetValue(handle, out var foundEntry))
{
switch (policy.Kind)
{
case ConflictPolicy.PolicyKind.ThrowError:
throw new FileExistsException <int>(handle);
case ConflictPolicy.PolicyKind.Replace:
// Handled later
replacing = true;
break;
case ConflictPolicy.PolicyKind.Ignore:
return;
default:
throw new ArgumentOutOfRangeException(nameof(policy));
}
}
bool compressed = false;
Entry entry;
var entryStream = stream;
if (compressed)
{
var compression = new LBCompression();
entryStream = compression.Compress(stream);
ownsStream = true;
}
if (!replacing)
{
var fileStream = stream as FileStream ??
throw new NotSupportedException("Can't add files without filename information to this file system");
var extension = Path.GetExtension(fileStream.Name);
if (extension == null)
{
throw new NotSupportedException("Can't add files without file extension information to this file system");
}
entry = new MemoryEntry(handle, entryStream, ownsStream, 1, compressed, ( int )stream.Length, userId, extension
.ToUpper()
.TrimStart('.'));
}
else
{
entry = new MemoryEntry(foundEntry.Handle, entryStream, ownsStream, foundEntry.Type, compressed, ( int )stream.Length, foundEntry.UserId,
foundEntry.Extension);
}
mEntryMap[entry.Handle] = entry;
}