--- libaitio/inc/aitio.h	2012/07/22 00:30:01	1.20.2.1
+++ libaitio/inc/aitio.h	2012/07/22 10:04:27	1.20.2.2
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@elwix.org>
 *
 * $Author: misho $
-* $Id: aitio.h,v 1.20.2.1 2012/07/22 00:30:01 misho Exp $
+* $Id: aitio.h,v 1.20.2.2 2012/07/22 10:04:27 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -100,7 +100,15 @@ typedef enum {
 
 typedef struct {
 	uint8_t		val_type;
-	uint8_t		val_pad;
+	union {
+		struct {
+			uint8_t	val_zcpy:1;
+			uint8_t	val_be:1;
+			uint8_t	val_le:1;
+			uint8_t val_pad:5;
+		};
+		uint8_t		val_opt;
+	};
 	uint16_t	val_key;
 	uint32_t	val_len;
 	union {
@@ -122,13 +130,16 @@ typedef struct {
 		int64_t		i64;
 	} val;
 	uint8_t		val_data[0];
-} __packed ait_val_t;
+} __packed ait_val_t;	/* sizeof 16 bytes */
 
 #define AIT_TYPE(_vl)			((ait_type_t) (_vl)->val_type)
 #define AIT_LEN(_vl)			(_vl)->val_len
 #define AIT_KEY(_vl)			(_vl)->val_key
 #define AIT_RAW(_vl)			(_vl)->val.net
 #define AIT_ADDR(_vl)			(_vl)->val.ptr
+#define AIT_ZEROCOPY(_vl)		(_vl)->val_zcpy
+#define AIT_BE(_vl)			(_vl)->val_be
+#define AIT_LE(_vl)			(_vl)->val_le
 #define AIT_BLOB_CHUNKS(_vl, _n)	(AIT_LEN((_vl)) / _n + (AIT_LEN((_vl)) % _n) ? 1 : 0)
 #define AIT_ISEMPTY(_vl)		(AIT_TYPE((_vl)) == empty)
 
@@ -259,22 +270,24 @@ typedef struct {
 #define AIT_FREE_VAL(_vl)		do { ait_val_t *__val = (_vl); assert(__val); \
 						switch (AIT_TYPE(__val)) { \
 							case buffer: \
-								if (__val->val.buffer) { \
+								if (!__val->val_zcpy && \
+										__val->val.buffer) \
 									io_free(__val->val.buffer); \
-									__val->val.buffer = NULL; \
-								} \
+								__val->val.buffer = NULL; \
 								break; \
 							case string: \
-								if (__val->val.string) { \
+								if (!__val->val_zcpy && \
+										__val->val.string) \
 									io_free(__val->val.string); \
-									__val->val.string = NULL; \
-								} \
+								__val->val.string = NULL; \
 								break; \
 							default: \
 								break; \
 						} \
 						__val->val_type = empty; \
+						__val->val_opt ^= __val->val_opt; \
 						AIT_LEN(__val) = 0; \
+						AIT_KEY(__val) = 0; \
 					} while (0)
 
 struct io_ether_addr {