]>
Commit | Line | Data |
---|---|---|
a5b38c5b DL |
1 | /* |
2 | * Copyright (c) 2016 David Lamparter, for NetDEF, Inc. | |
3 | * | |
bbfeedb5 DL |
4 | * Permission to use, copy, modify, and distribute this software for any |
5 | * purpose with or without fee is hereby granted, provided that the above | |
6 | * copyright notice and this permission notice appear in all copies. | |
a5b38c5b | 7 | * |
bbfeedb5 DL |
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
a5b38c5b DL |
15 | */ |
16 | ||
b45ac5f5 DL |
17 | #ifdef HAVE_CONFIG_H |
18 | #include "config.h" | |
19 | #endif | |
20 | ||
8d0a2918 DL |
21 | #include <string.h> |
22 | ||
a5b38c5b DL |
23 | #include "memory.h" |
24 | #include "hook.h" | |
25 | ||
bf8d3d6a | 26 | DEFINE_MTYPE_STATIC(LIB, HOOK_ENTRY, "Hook entry"); |
a5b38c5b | 27 | |
8d0a2918 DL |
28 | void _hook_register(struct hook *hook, struct hookent *stackent, void *funcptr, |
29 | void *arg, bool has_arg, struct frrmod_runtime *module, | |
30 | const char *funcname, int priority) | |
a5b38c5b | 31 | { |
8d0a2918 DL |
32 | struct hookent *he, **pos; |
33 | ||
34 | if (!stackent->ent_used) | |
35 | he = stackent; | |
36 | else { | |
37 | he = XCALLOC(MTYPE_HOOK_ENTRY, sizeof(*he)); | |
38 | he->ent_on_heap = true; | |
39 | } | |
40 | he->ent_used = true; | |
a5b38c5b DL |
41 | he->hookfn = funcptr; |
42 | he->hookarg = arg; | |
43 | he->has_arg = has_arg; | |
44 | he->module = module; | |
45 | he->fnname = funcname; | |
08c4c73b | 46 | he->priority = priority; |
a5b38c5b | 47 | |
08c4c73b | 48 | for (pos = &hook->entries; *pos; pos = &(*pos)->next) |
996c9314 LB |
49 | if (hook->reverse ? (*pos)->priority < priority |
50 | : (*pos)->priority >= priority) | |
08c4c73b DL |
51 | break; |
52 | ||
53 | he->next = *pos; | |
54 | *pos = he; | |
a5b38c5b DL |
55 | } |
56 | ||
d62a17ae | 57 | void _hook_unregister(struct hook *hook, void *funcptr, void *arg, bool has_arg) |
a5b38c5b DL |
58 | { |
59 | struct hookent *he, **prev; | |
60 | ||
61 | for (prev = &hook->entries; (he = *prev) != NULL; prev = &he->next) | |
62 | if (he->hookfn == funcptr && he->hookarg == arg | |
d62a17ae | 63 | && he->has_arg == has_arg) { |
a5b38c5b | 64 | *prev = he->next; |
8d0a2918 DL |
65 | if (he->ent_on_heap) |
66 | XFREE(MTYPE_HOOK_ENTRY, he); | |
67 | else | |
68 | memset(he, 0, sizeof(*he)); | |
a5b38c5b DL |
69 | break; |
70 | } | |
71 | } |