Call the poll callback with 0 whenever a connection is closed.

[utcp] / utcp_priv.h

diff --git a/utcp_priv.h b/utcp_priv.h
index 69f1b0da5347371649da4dbaa92973cfed0617eb..6c5c1f85f052016999b800534e398a21884eec17 100644 (file)
--- 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
@@ -89,6 +102,7 @@ struct sack {
 struct utcp_connection {
        void *priv;
        struct utcp *utcp;
+       uint32_t flags;
 
        bool reapable;
 
@@ -125,6 +139,8 @@ struct utcp_connection {
 
        struct timeval conn_timeout;
        struct timeval rtrx_timeout;
+       struct timeval rtt_start;
+       uint32_t rtt_seq;
 
        // Buffers
 
@@ -136,6 +152,7 @@ struct utcp_connection {
 
        bool nodelay;
        bool keepalive;
+       bool shut_wr;
 
        // Congestion avoidance state
 
@@ -155,7 +172,13 @@ struct utcp {
        // 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