vcl: update buf if whole buf cannot be done at once

Change-Id: I0d56d2cee012b46da848362f322d6f246f8bf4c2
Signed-off-by: wuzhouhui <wuzhouhui14@mails.ucas.ac.cn>

diff --git a/src/vcl/vcl_test.h b/src/vcl/vcl_test.h
index 638d519..cb38f29 100644 (file)
--- a/src/vcl/vcl_test.h
+++ b/src/vcl/vcl_test.h
@@ -509,6 +509,7 @@ vcl_test_write (int fd, uint8_t * buf, uint32_t nbytes,
       if (tx_bytes != nbytes)
        {
          nbytes_left = nbytes_left - rv;
+         buf += rv;
          if (stats)
            stats->tx_incomp++;
        }