vcl: add api to retrieve num bytes for tx

[vpp.git] / src / vcl / vppcom.c

diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index 5174fe8..a0bbae1 100644 (file)
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -1440,12 +1440,10 @@ vppcom_app_destroy (void)
 
   current_wrk = vcl_worker_get_current ();
 
-  /* *INDENT-OFF* */
   pool_foreach (wrk, vcm->workers)  {
     if (current_wrk != wrk)
       vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
   }
-  /* *INDENT-ON* */
 
   vcl_api_detach (current_wrk);
   vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
@@ -3587,7 +3585,19 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
       VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
            rv);
       break;
-
+    case VPPCOM_ATTR_GET_NWRITEQ:
+      if (PREDICT_FALSE (!buffer || !buflen || *buflen != sizeof (int)))
+       {
+         rv = VPPCOM_EINVAL;
+         break;
+       }
+      if (!session->tx_fifo || session->session_state == VCL_STATE_DETACHED)
+       {
+         rv = VPPCOM_EINVAL;
+         break;
+       }
+      *(int *) buffer = svm_fifo_max_dequeue (session->tx_fifo);
+      break;
     case VPPCOM_ATTR_GET_FLAGS:
       if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
        {