X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvlibmemory%2Fsocket_api.c;h=f0c7f1feeb1c68f81c059129c997444492a89edd;hb=bff9f2f2e7a288886cd843bc90446ef1d26615dd;hp=a8423d11ccb30d8dd4f00a459ae16919180b08ab;hpb=3c1cf2c1716f436e5da4a106dd2b9a3df5d3a4a3;p=vpp.git

diff --git a/src/vlibmemory/socket_api.c b/src/vlibmemory/socket_api.c
index a8423d11ccb..f0c7f1feeb1 100644
--- a/src/vlibmemory/socket_api.c
+++ b/src/vlibmemory/socket_api.c
@@ -591,7 +591,7 @@ vl_api_sock_init_shm_t_handler (vl_api_sock_init_shm_t * mp)
   clib_file_t *cf;
   vl_api_shm_elem_config_t *config = 0;
   vl_shmem_hdr_t *shmem_hdr;
-  int rv;
+  int rv, tries = 1000;
 
   regp = vl_api_client_index_to_registration (mp->client_index);
   if (regp == 0)
@@ -671,6 +671,22 @@ reply:
 
   /* Send the magic "here's your sign (aka fd)" socket message */
   cf = vl_api_registration_file (regp);
+
+  /* Wait for reply to be consumed before sending the fd */
+  while (tries-- > 0)
+    {
+      int bytes;
+      rv = ioctl (cf->file_descriptor, TIOCOUTQ, &bytes);
+      if (rv < 0)
+	{
+	  clib_unix_warning ("ioctl returned");
+	  break;
+	}
+      if (bytes == 0)
+	break;
+      usleep (1e3);
+    }
+
   vl_sock_api_send_fd_msg (cf->file_descriptor, &memfd->fd, 1);
 }
 
@@ -722,8 +738,7 @@ vl_sock_api_init (vlib_main_t * vm)
       vec_free (tmp);
     }
 
-  sock->flags = CLIB_SOCKET_F_IS_SERVER | CLIB_SOCKET_F_SEQPACKET |
-    CLIB_SOCKET_F_ALLOW_GROUP_WRITE;
+  sock->flags = CLIB_SOCKET_F_IS_SERVER | CLIB_SOCKET_F_ALLOW_GROUP_WRITE;
   error = clib_socket_init (sock);
   if (error)
     return error;