X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=utcp_priv.h;h=9331cd2d617653aaaa40f5353a06b02d75245e5a;hb=refs%2Fheads%2Ffeature%2Fefficent-buffers;hp=69f1b0da5347371649da4dbaa92973cfed0617eb;hpb=fb2d3fbb1fe0538ef0f137ed88322f5b3de4707f;p=utcp

diff --git a/utcp_priv.h b/utcp_priv.h
index 69f1b0d..9331cd2 100644
--- a/utcp_priv.h
+++ b/utcp_priv.h
@@ -30,12 +30,25 @@
 #define FIN 4
 #define RST 8
 
+#define AUX_INIT 1
+#define AUX_FRAME 2
+#define AUX_SAK 3
+#define AUX_TIMESTAMP 4
+
 #define NSACKS 4
 #define DEFAULT_SNDBUFSIZE 4096
 #define DEFAULT_MAXSNDBUFSIZE 131072
 #define DEFAULT_RCVBUFSIZE 0
 #define DEFAULT_MAXRCVBUFSIZE 131072
 
+#define DEFAULT_MTU 1000
+
+#define USEC_PER_SEC 1000000
+#define DEFAULT_USER_TIMEOUT 60 // sec
+#define CLOCK_GRANULARITY 1000 // usec
+#define START_RTO 1000000 // usec
+#define MAX_RTO 3000000 // usec
+
 struct hdr {
 	uint16_t src; // Source port
 	uint16_t dst; // Destination port
@@ -76,6 +89,7 @@ static const char *strstate[] __attribute__((unused)) = {
 
 struct buffer {
 	char *data;
+	uint32_t offset;
 	uint32_t used;
 	uint32_t size;
 	uint32_t maxsize;
@@ -89,6 +103,7 @@ struct sack {
 struct utcp_connection {
 	void *priv;
 	struct utcp *utcp;
+	uint32_t flags;
 
 	bool reapable;
 
@@ -125,6 +140,8 @@ struct utcp_connection {
 
 	struct timeval conn_timeout;
 	struct timeval rtrx_timeout;
+	struct timeval rtt_start;
+	uint32_t rtt_seq;
 
 	// Buffers
 
@@ -136,6 +153,7 @@ struct utcp_connection {
 
 	bool nodelay;
 	bool keepalive;
+	bool shut_wr;
 
 	// Congestion avoidance state
 
@@ -152,10 +170,20 @@ struct utcp {
 	utcp_pre_accept_t pre_accept;
 	utcp_send_t send;
 
+	// Packet buffer
+
+	void *pkt;
+
 	// Global socket options
 
 	uint16_t mtu;
-	int timeout;
+	int timeout; // sec
+
+	// RTT variables
+
+	uint32_t srtt; // usec
+	uint32_t rttvar; // usec
+	uint32_t rto; // usec
 
 	// Connection management