1 files changed, 15 insertions, 2 deletions
diff --git a/Swiften/FileTransfer/ReadBytestream.h b/Swiften/FileTransfer/ReadBytestream.h
index 4da2bc2..c94e4d3 100644
--- a/Swiften/FileTransfer/ReadBytestream.h
+++ b/Swiften/FileTransfer/ReadBytestream.h
@@ -6,13 +6,26 @@
 
 #pragma once
 
-#include "Swiften/Base/ByteArray.h"
+#include <boost/shared_ptr.hpp>
+#include <vector>
+
+#include <Swiften/Base/boost_bsignals.h>
 
 namespace Swift {
 	class ReadBytestream {
 		public:
 			virtual ~ReadBytestream();
-			virtual ByteArray read(size_t size) = 0;
+
+			/**
+			 * Return an empty vector if no more data is available.
+			 * Use onDataAvailable signal for signaling there is data available again.
+			 */
+			virtual boost::shared_ptr< std::vector<unsigned char> > read(size_t size) = 0;
+
 			virtual bool isFinished() const = 0;
+
+		public:
+			boost::signal<void ()> onDataAvailable;
+			boost::signal<void (const std::vector<unsigned char>&)> onRead;
 	};
 }