X-Git-Url: http://git.meshlink.io/?p=utcp;a=blobdiff_plain;f=utcp_priv.h;h=69f1b0da5347371649da4dbaa92973cfed0617eb;hp=b9979539465a7ac7e5cbae1b9e5c3258fc8a445a;hb=fb2d3fbb1fe0538ef0f137ed88322f5b3de4707f;hpb=3c10b4a62f71cdc92e7dea3ace931ec1f497a660

diff --git a/utcp_priv.h b/utcp_priv.h
index b997953..69f1b0d 100644
--- a/utcp_priv.h
+++ b/utcp_priv.h
@@ -30,8 +30,11 @@
 #define FIN 4
 #define RST 8
 
+#define NSACKS 4
 #define DEFAULT_SNDBUFSIZE 4096
 #define DEFAULT_MAXSNDBUFSIZE 131072
+#define DEFAULT_RCVBUFSIZE 0
+#define DEFAULT_MAXRCVBUFSIZE 131072
 
 struct hdr {
 	uint16_t src; // Source port
@@ -78,6 +81,11 @@ struct buffer {
 	uint32_t maxsize;
 };
 
+struct sack {
+	uint32_t offset;
+	uint32_t len;
+};
+
 struct utcp_connection {
 	void *priv;
 	struct utcp *utcp;
@@ -118,9 +126,11 @@ struct utcp_connection {
 	struct timeval conn_timeout;
 	struct timeval rtrx_timeout;
 
-	// Send buffer
+	// Buffers
 
 	struct buffer sndbuf;
+	struct buffer rcvbuf;
+	struct sack sacks[NSACKS];
 
 	// Per-socket options