vlib: add possibility to disable pager

For the current running cli process, it can be useful to be able to
disable the pager in case of long running command (e.g. ping).
For a small window, the pager will prompt and hide the results of the
command.

Type: improvement
Change-Id: I8fdde7f581683a8d9fd702a744fb95b5c58e14ff
Signed-off-by: Maxime Peim <[email protected]>

diff --git a/src/vlib/unix/cli.c b/src/vlib/unix/cli.c
index 8f0f00c..e835a52 100644 (file)
--- a/src/vlib/unix/cli.c
+++ b/src/vlib/unix/cli.c
@@ -3287,6 +3287,21 @@ unix_cli_file_if_interactive (unix_cli_main_t * cm)
   return cf;
 }
 
+u8
+vlib_unix_cli_enable_disable_pager (u8 enable)
+{
+  unix_cli_main_t *cm = &unix_cli_main;
+  unix_cli_file_t *cf = unix_cli_file_if_interactive (cm);
+  u8 old;
+
+  if (!cf)
+    return ~0;
+
+  old = !cf->no_pager;
+  cf->no_pager = !enable;
+  return old;
+}
+
 /** CLI command to quit the terminal session.
  * @note If this is a stdin session then this will
  *       shutdown VPP also.

diff --git a/src/vlib/unix/unix.h b/src/vlib/unix/unix.h
index d0b7a4c..e3aad36 100644 (file)
--- a/src/vlib/unix/unix.h
+++ b/src/vlib/unix/unix.h
@@ -140,6 +140,8 @@ int vlib_unix_main (int argc, char *argv[]);
 /* Set prompt for CLI. */
 void vlib_unix_cli_set_prompt (char *prompt);
 
+u8 vlib_unix_cli_enable_disable_pager (u8 enable);
+
 static inline unix_main_t *
 vlib_unix_get_main (void)
 {