Box Backup 0.09 with a few tweeks

1 files changed, 62 insertions, 0 deletions

diff --git a/lib/compress/CompressStream.h b/lib/compress/CompressStream.h
new file mode 100644
index 00000000..7959e3dc
--- /dev/null
+++ b/lib/compress/CompressStream.h
@@ -0,0 +1,62 @@
+// --------------------------------------------------------------------------
+//
+// File
+//		Name:    CompressStream.h
+//		Purpose: Compressing stream
+//		Created: 27/5/04
+//
+// --------------------------------------------------------------------------
+
+#ifndef COMPRESSSTREAM__H
+#define COMPRESSSTREAM__H
+
+#include "IOStream.h"
+
+// --------------------------------------------------------------------------
+//
+// Class
+//		Name:    CompressStream
+//		Purpose: Compressing stream
+//		Created: 27/5/04
+//
+// --------------------------------------------------------------------------
+class CompressStream : public IOStream
+{
+public:
+	CompressStream(IOStream *pStream, bool TakeOwnership,
+		bool DecompressRead, bool CompressWrite, bool PassThroughWhenNotCompressed = false);
+	~CompressStream();
+private:
+	// No copying (have implementations which exception)
+	CompressStream(const CompressStream &);
+	CompressStream &operator=(const CompressStream &);
+public:
+
+	virtual int Read(void *pBuffer, int NBytes, int Timeout = IOStream::TimeOutInfinite);
+	virtual void Write(const void *pBuffer, int NBytes);
+	virtual void WriteAllBuffered();
+	virtual void Close();
+	virtual bool StreamDataLeft();
+	virtual bool StreamClosed();
+
+protected:
+	void CheckRead();
+	void CheckWrite();
+	void CheckBuffer();
+	void WriteCompressedData(bool SyncFlush = false);
+
+private:
+	IOStream *mpStream;
+	bool mHaveOwnership;
+	bool mDecompressRead;
+	bool mCompressWrite;
+	bool mPassThroughWhenNotCompressed;
+	// Avoid having to include Compress.h
+	void *mpReadCompressor;
+	void *mpWriteCompressor;
+	void *mpBuffer;
+	bool mIsClosed;
+};
+
+#endif // COMPRESSSTREAM__H
+