tipc: Add socket options to get number of queued messages

This patch allows a TIPC application to determine the number of messages
currently waiting in a socket's receive queue (TIPC_SOCK_RECVQ_DEPTH) or
in all TIPC socket receive queues (TIPC_NODE_RECVQ_DEPTH).

Signed-off-by: Oscar Medina <oscar.medina@motorola.com>
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/tipc.h b/include/linux/tipc.h
index bea469455a0c..3d92396639de 100644
--- a/include/linux/tipc.h
+++ b/include/linux/tipc.h
@@ -209,5 +209,7 @@ struct sockaddr_tipc {
 #define TIPC_SRC_DROPPABLE      128     /* Default: 0 (resend congested msg) */
 #define TIPC_DEST_DROPPABLE     129     /* Default: based on socket type */
 #define TIPC_CONN_TIMEOUT       130     /* Default: 8000 (ms)  */
+#define TIPC_NODE_RECVQ_DEPTH   131     /* Default: none (read only) */
+#define TIPC_SOCK_RECVQ_DEPTH   132     /* Default: none (read only) */
 
 #endif