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git.proxmox.com Git - mirror_frr.git/blob - lib/hook.c
2 * Copyright (c) 2016 David Lamparter, for NetDEF, Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
26 DEFINE_MTYPE_STATIC(LIB
, HOOK_ENTRY
, "Hook entry")
28 void _hook_register(struct hook
*hook
, void *funcptr
, void *arg
, bool has_arg
,
29 struct frrmod_runtime
*module
, const char *funcname
)
31 struct hookent
*he
= XCALLOC(MTYPE_HOOK_ENTRY
, sizeof(*he
));
34 he
->has_arg
= has_arg
;
36 he
->fnname
= funcname
;
38 he
->next
= hook
->entries
;
42 void _hook_unregister(struct hook
*hook
, void *funcptr
,
43 void *arg
, bool has_arg
)
45 struct hookent
*he
, **prev
;
47 for (prev
= &hook
->entries
; (he
= *prev
) != NULL
; prev
= &he
->next
)
48 if (he
->hookfn
== funcptr
&& he
->hookarg
== arg
49 && he
->has_arg
== has_arg
)
52 XFREE(MTYPE_HOOK_ENTRY
, he
);