vcl: use events for epoll/select/read/write

Have vcl poll and wait on the event message queues as opposed to
constantly polling the session fifos. This also adds event signaling to
cut through sessions.

On the downside, because we can't wait on multiple condvars, i.e., when
we have multiple message queues because of cut-through registrations, we
do timed waits.

Change-Id: I29ade95dba449659fe46008bb1af502276a7c5fd
Signed-off-by: Florin Coras <fcoras@cisco.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/vnet/session/application_interface.c b/src/vnet/session/application_interface.c
index 9d82a1855a4..c8fa37f0b9d 100644
--- a/src/vnet/session/application_interface.c
+++ b/src/vnet/session/application_interface.c
@@ -598,7 +598,7 @@ vnet_bind (vnet_bind_args_t * a)
 {
   int rv;
   if ((rv = vnet_bind_i (a->app_index, &a->sep, &a->handle)))
-    return clib_error_return_code (0, rv, 0, "bind failed");
+    return clib_error_return_code (0, rv, 0, "bind failed: %d", rv);
   return 0;
 }
 
@@ -607,7 +607,7 @@ vnet_unbind (vnet_unbind_args_t * a)
 {
   int rv;
   if ((rv = vnet_unbind_i (a->app_index, a->handle)))
-    return clib_error_return_code (0, rv, 0, "unbind failed");
+    return clib_error_return_code (0, rv, 0, "unbind failed: %d", rv);
   return 0;
 }
 
@@ -618,7 +618,7 @@ vnet_connect (vnet_connect_args_t * a)
   int rv;
 
   if ((rv = application_connect (a->app_index, a->api_context, sep)))
-    return clib_error_return_code (0, rv, 0, "connect failed");
+    return clib_error_return_code (0, rv, 0, "connect failed: %d", rv);
   return 0;
 }