failover to any active transport when requested channel is not connected

Signed-off-by: Anand V. Avati <avati@amp.gluster.com>

2 files changed, 30 insertions, 2 deletions

diff --git a/xlators/protocol/client/src/client-protocol.c b/xlators/protocol/client/src/client-protocol.c
index 2a636a18f..95a5db895 100644
--- a/xlators/protocol/client/src/client-protocol.c
+++ b/xlators/protocol/client/src/client-protocol.c
@@ -61,6 +61,34 @@ static gf_op_t gf_mops[];
 static gf_op_t gf_cbks[];
 
 
+transport_t *
+client_channel (xlator_t *this, int id)
+{
+        transport_t              *trans = NULL;
+        client_conf_t            *conf = NULL;
+        int                       i = 0;
+        struct client_connection *conn = NULL;
+
+        conf = this->private;
+
+        trans = conf->transport[id];
+        conn = trans->xl_private;
+
+        if (conn->connected == 1)
+                goto ret;
+
+        for (i = 0; i < CHANNEL_MAX; i++) {
+                trans = conf->transport[i];
+                conn = trans->xl_private;
+                if (conn->connected == 1)
+                        break;
+        }
+
+ret:
+        return trans;
+}
+
+
 static ino_t
 this_ino_get_from_inode (inode_t *inode, xlator_t *this)
 {
diff --git a/xlators/protocol/client/src/client-protocol.h b/xlators/protocol/client/src/client-protocol.h
index 513267d37..ce8cd5169 100644
--- a/xlators/protocol/client/src/client-protocol.h
+++ b/xlators/protocol/client/src/client-protocol.h
@@ -54,8 +54,8 @@ enum {
 	CHANNEL_LOWLAT = 1,
 	CHANNEL_MAX
 };
-#define CLIENT_CHANNEL(xl,id) \
-	(((client_conf_t *)(xl->private))->transport[id])
+
+#define CLIENT_CHANNEL client_channel
 
 struct client_connection;
 typedef struct client_connection client_connection_t;