--- mqtt/inc/Attic/aitmqtt.h	2011/11/07 16:55:46	1.1.1.1.2.4
+++ mqtt/inc/Attic/aitmqtt.h	2011/11/18 17:23:59	1.1.1.1.2.5
@@ -93,12 +93,13 @@ typedef union {
 				l:8;
 	} sb;
 	unsigned short	val;
-} mqtthdr_val_t;
+} mqtt_v_t;
 
 typedef struct {
-	mqtthdr_val_t	var_sb;
+	mqtt_v_t	var_sb;
 	unsigned char	var_data[0];
 } __packed mqtthdr_var_t;
+#define MQTTHDR_VAR_SIZEOF(x)		(assert((x)), sizeof(mqtt_v_t) + ntohs((x)->var_sb.val))
 
 typedef unsigned char mqtthdr_protover_t;
 typedef unsigned char mqtthdr_retcode_t;
@@ -114,6 +115,14 @@ typedef struct {
 } __packed mqtthdr_connflgs_t;
 
 
+/* MQTT Message buffer */
+
+typedef struct {
+	void		*msg_base;
+	unsigned short	msg_len;
+} mqtt_msg_t;
+
+
 // -------------------------------------------------------
 // mqtt_GetErrno() Get error code of last operation
 inline int mqtt_GetErrno();
@@ -121,6 +130,27 @@ inline int mqtt_GetErrno();
 inline const char *mqtt_GetError();
 // -------------------------------------------------------
 
+
+/*
+ * mqtt_msgAlloc() Allocate memory for MQTT Message
+ * @len = >0 Allocate buffer with length
+ * return: NULL error or Message, after use must call mqtt_msgFree() with all!=0
+ */
+inline mqtt_msg_t *mqtt_msgAlloc(unsigned short len);
+/*
+ * mqtt_msgFree() Free MQTT message
+ * @msg = Message buffer
+ * @all = !=0 Destroy entire message, if MQTT Message allocated with mqtt_msgAlloc()
+ * return: none
+ */
+inline void mqtt_msgFree(mqtt_msg_t ** __restrict msg, int all);
+/*
+ * mqtt_msgRealloc() Reallocate MQTT message buffer
+ * @msg = MQTT message
+ * @len = new length
+ * return: -1 error or >-1 old buffer length
+ */
+inline int mqtt_msgRealloc(mqtt_msg_t * __restrict msg, unsigned short len);
 
 /*
  * mqtt_encodeLen() Encode number to MQTT length field