From: Guus Sliepen <guus@sliepen.org>
Date: Sun, 17 Mar 2019 19:54:19 +0000 (+0100)
Subject: Add functions to get the amount of bytes in the send and receive buffers.
X-Git-Url: http://git.meshlink.io/?p=utcp;a=commitdiff_plain;h=113cc69639c8148cb4ffb488065db41c09a861b3

Add functions to get the amount of bytes in the send and receive buffers.

utcp_get_sendq() returns the amount of bytes in the send buffer, which
corresponds to the amount of bytes not yet ACKed by the peer.

utcp_get_recvq() returns the amount of bytes in the receive buffer,
which may or may not have been acked already, but have not been read by
the application.
---

diff --git a/utcp.c b/utcp.c
index 9fb68ae..4875f84 100644
--- a/utcp.c
+++ b/utcp.c
@@ -1930,6 +1930,14 @@ void utcp_set_rcvbuf(struct utcp_connection *c, size_t size) {
 	}
 }
 
+size_t utcp_get_sendq(struct utcp_connection *c) {
+	return c->sndbuf.used;
+}
+
+size_t utcp_get_recvq(struct utcp_connection *c) {
+	return c->rcvbuf.used;
+}
+
 bool utcp_get_nodelay(struct utcp_connection *c) {
 	return c ? c->nodelay : false;
 }
diff --git a/utcp.h b/utcp.h
index fe4c720..5d64676 100644
--- a/utcp.h
+++ b/utcp.h
@@ -99,6 +99,9 @@ extern size_t utcp_get_rcvbuf(struct utcp_connection *connection);
 extern void utcp_set_rcvbuf(struct utcp_connection *connection, size_t size);
 extern size_t utcp_get_rcvbuf_free(struct utcp_connection *connection);
 
+extern size_t utcp_get_sendq(struct utcp_connection *connection);
+extern size_t utcp_get_recvq(struct utcp_connection *connection);
+
 extern bool utcp_get_nodelay(struct utcp_connection *connection);
 extern void utcp_set_nodelay(struct utcp_connection *connection, bool nodelay);