@interface ITByteStream : NSObject {
NSMutableData *data;
+ @private
+ NSLock *lock;
}
-(id) initWithStream:(ITByteStream*)stream;
-(int) availableDataLength;
-(NSData*) readDataOfLength:(int)length;
--(void) writeData:(NSData*)data;
+-(void) writeData:(in NSData*)data;
@end