@@ -84,10 +84,13 @@
 #ifdef OF_HAVE_SOCKETS
     OFReadyForReadingObserving, OFReadyForWritingObserving,
 #endif
     OFCopying>
 {
+#ifndef OF_SEEKABLE_STREAM_M
+@private
+#endif
 	char *_readBuffer, *_writeBuffer;
 	size_t _readBufferLength, _writeBufferLength;
 	bool _writeBufferEnabled, _blocking, _waitingForDelimiter;
 }
 
@@ -1039,15 +1042,15 @@
  */
 - (size_t)writeFormat: (OFConstantString*)format
 	    arguments: (va_list)arguments;
 
 /*!
- * @brief Returns the number of bytes still present in the internal read buffer.
+ * @brief Returns whether data is present in the internal read buffer.
  *
- * @return The number of bytes still present in the internal read buffer.
+ * @return Whether data is present in the internal read buffer
  */
-- (size_t)numberOfBytesInReadBuffer;
+- (bool)hasDataInReadBuffer;
 
 /*!
  * @brief Returns whether the stream is in blocking mode.
  *
  * @return Whether the stream is in blocking mode