public Stream GetStream(FileEntry entry, bool newFileStream = false)
{
Stream stream;
if (entry.cachedBytes != null)
{
stream = new MemoryStream(entry.cachedBytes);
}
else if (fileStream == null)
{
throw new IOException($"File not open: {path}");
}
else if (newFileStream)
{
var ers = new EntryReadStream(this, entry, File.OpenRead(path), false);
independentEntryReadStreams.Add(ers);
stream = ers;
}
else if (sharedEntryReadStream != null)
{
throw new IOException($"Previous entry read stream not closed: {sharedEntryReadStream.Name}");
}
else
{
stream = sharedEntryReadStream = new EntryReadStream(this, entry, fileStream, true);
}
if (entry.IsCompressed)
{
stream = new DeflateStream(stream, CompressionMode.Decompress);
}
return(stream);
}
internal void OnStreamClosed(EntryReadStream stream)
{
if (stream == sharedEntryReadStream)
{
sharedEntryReadStream = null;
}
else if (!independentEntryReadStreams.Remove(stream))
{
throw new IOException($"Closed EntryReadStream not associated with this file. {stream.Name} @ {path}");
}
}