receiver memory alignment: all data and header is a multiple of 64 bit, just the fifo header size needed to be 8

slsReceiverSoftware/include/receiver_defs.h

@@ -21,7 +21,9 @@
 #define FILE_BUFFER_SIZE        		(16*1024*1024) //16mb
 
 //fifo
-#define FIFO_HEADER_NUMBYTES			4
+#define FIFO_HEADER_NUMBYTES			8
+#define FIFO_DATASIZE_NUMBYTES          4
+#define FIFO_PADDING_NUMBYTES           4 // for 8 byte alignment due to sls_receiver_header structure
 
 
 //hdf5