/*
* Copyright (c) 2016 David Lamparter, for NetDEF, Inc.
*
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
*
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <string.h>
+
#include "memory.h"
#include "hook.h"
-DEFINE_MTYPE_STATIC(LIB, HOOK_ENTRY, "Hook entry")
+DEFINE_MTYPE_STATIC(LIB, HOOK_ENTRY, "Hook entry");
-void _hook_register(struct hook *hook, void *funcptr, void *arg, bool has_arg,
- struct frrmod_runtime *module, const char *funcname)
+void _hook_register(struct hook *hook, struct hookent *stackent, void *funcptr,
+ void *arg, bool has_arg, struct frrmod_runtime *module,
+ const char *funcname, int priority)
{
- struct hookent *he = XCALLOC(MTYPE_HOOK_ENTRY, sizeof(*he));
+ struct hookent *he, **pos;
+
+ if (!stackent->ent_used)
+ he = stackent;
+ else {
+ he = XCALLOC(MTYPE_HOOK_ENTRY, sizeof(*he));
+ he->ent_on_heap = true;
+ }
+ he->ent_used = true;
he->hookfn = funcptr;
he->hookarg = arg;
he->has_arg = has_arg;
he->module = module;
he->fnname = funcname;
+ he->priority = priority;
- he->next = hook->entries;
- hook->entries = he;
+ for (pos = &hook->entries; *pos; pos = &(*pos)->next)
+ if (hook->reverse ? (*pos)->priority < priority
+ : (*pos)->priority >= priority)
+ break;
+
+ he->next = *pos;
+ *pos = he;
}
-void _hook_unregister(struct hook *hook, void *funcptr,
- void *arg, bool has_arg)
+void _hook_unregister(struct hook *hook, void *funcptr, void *arg, bool has_arg)
{
struct hookent *he, **prev;
for (prev = &hook->entries; (he = *prev) != NULL; prev = &he->next)
if (he->hookfn == funcptr && he->hookarg == arg
- && he->has_arg == has_arg)
- {
+ && he->has_arg == has_arg) {
*prev = he->next;
- XFREE(MTYPE_HOOK_ENTRY, he);
+ if (he->ent_on_heap)
+ XFREE(MTYPE_HOOK_ENTRY, he);
+ else
+ memset(he, 0, sizeof(*he));
break;
}
}
-