Merge pull request #13649 from donaldsharp/unlock_the_node_or_else

[mirror_frr.git] / lib / debug.c

diff --git a/lib/debug.c b/lib/debug.c
index 72fd4648ee85ae97962ca288717c43d0b7cbc6c9..757a47ab99b37e3aa3f168ca050362bdf9c5acc0 100644 (file)
--- a/lib/debug.c
+++ b/lib/debug.c
@@ -1,46 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Debugging utilities.
  * Copyright (C) 2018  Cumulus Networks, Inc.
  * Quentin Young
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; see the file COPYING; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
 #include <zebra.h>
+#include "typesafe.h"
 #include "debug.h"
 #include "command.h"
 
-static const struct debug_callbacks *callbacks;
+static struct debug_cb_list_head cb_head;
+
+DECLARE_LIST(debug_cb_list, struct debug_callbacks, item);
 
 /* All code in this section should be reentrant and MT-safe */
 
 DEFUN_NOSH(debug_all, debug_all_cmd, "[no] debug all",
           NO_STR DEBUG_STR "Toggle all debugging output\n")
 {
+       struct debug_callbacks *cb;
+
        bool set = !strmatch(argv[0]->text, "no");
        uint32_t mode = DEBUG_NODE2MODE(vty->node);
 
-       if (callbacks->debug_set_all)
-               callbacks->debug_set_all(mode, set);
+       frr_each (debug_cb_list, &cb_head, cb)
+               cb->debug_set_all(mode, set);
+
        return CMD_SUCCESS;
 }
 
 /* ------------------------------------------------------------------------- */
 
-void debug_init(const struct debug_callbacks *cb)
+void debug_init(struct debug_callbacks *cb)
+{
+       static bool inited = false;
+
+       if (!inited) {
+               inited = true;
+               debug_cb_list_init(&cb_head);
+       }
+
+       debug_cb_list_add_head(&cb_head, cb);
+}
+
+void debug_init_cli(void)
 {
-       callbacks = cb;
        install_element(ENABLE_NODE, &debug_all_cmd);
        install_element(CONFIG_NODE, &debug_all_cmd);
 }