X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=utcp_priv.h;h=24f4158318ddccd8a4a586b72420fbe87de172c2;hb=027abc36cfb0a8247625f5f6af65b7ce63065a33;hp=69f1b0da5347371649da4dbaa92973cfed0617eb;hpb=fb2d3fbb1fe0538ef0f137ed88322f5b3de4707f;p=utcp

diff --git a/utcp_priv.h b/utcp_priv.h
index 69f1b0d..24f4158 100644
--- a/utcp_priv.h
+++ b/utcp_priv.h
@@ -36,6 +36,13 @@
 #define DEFAULT_RCVBUFSIZE 0
 #define DEFAULT_MAXRCVBUFSIZE 131072
 
+#define DEFAULT_MTU 1000
+
+#define DEFAULT_USER_TIMEOUT 60 // s
+#define CLOCK_GRANULARITY 1000 // us
+#define START_RTO 1000000 // us
+#define MAX_RTO 3000000 // us
+
 struct hdr {
 	uint16_t src; // Source port
 	uint16_t dst; // Destination port
@@ -125,6 +132,8 @@ struct utcp_connection {
 
 	struct timeval conn_timeout;
 	struct timeval rtrx_timeout;
+	struct timeval rtt_start;
+	uint32_t rtt_seq;
 
 	// Buffers
 
@@ -155,7 +164,13 @@ struct utcp {
 	// Global socket options
 
 	uint16_t mtu;
-	int timeout;
+	int timeout; // s
+
+	// RTT variables
+
+	uint32_t srtt; // us
+	uint32_t rttvar; // us
+	uint32_t rto; // us
 
 	// Connection management