* (C) Copyright 2012
* Joe Hershberger, National Instruments, joe.hershberger@ni.com
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
return NULL;
}
+static int first_call = 1;
+static const char *callback_list;
+
/*
* Look for a possible callback for a newly added variable
* This is called specifically when the variable did not exist in the hash
void env_callback_init(ENTRY *var_entry)
{
const char *var_name = var_entry->key;
- const char *callback_list = getenv(ENV_CALLBACK_VAR);
char callback_name[256] = "";
struct env_clbk_tbl *clbkp;
int ret = 1;
+ if (first_call) {
+ callback_list = getenv(ENV_CALLBACK_VAR);
+ first_call = 0;
+ }
+
/* look in the ".callbacks" var for a reference to this variable */
if (callback_list != NULL)
ret = env_attr_lookup(callback_list, var_name, callback_name);
/*
* Call for each element in the list that associates variables to callbacks
*/
-static int set_callback(const char *name, const char *value)
+static int set_callback(const char *name, const char *value, void *priv)
{
ENTRY e, *ep;
struct env_clbk_tbl *clbkp;
hwalk_r(&env_htab, clear_callback);
/* configure any static callback bindings */
- env_attr_walk(ENV_CALLBACK_LIST_STATIC, set_callback);
+ env_attr_walk(ENV_CALLBACK_LIST_STATIC, set_callback, NULL);
/* configure any dynamic callback bindings */
- env_attr_walk(value, set_callback);
+ env_attr_walk(value, set_callback, NULL);
return 0;
}