| 74 | } |
| 75 | |
| 76 | struct plugin_hook *plugin_hook_register(struct plugin *plugin, const char *method) |
| 77 | { |
| 78 | struct hook_instance *h; |
| 79 | struct plugin_hook *hook = plugin_hook_by_name(method); |
| 80 | if (!hook) { |
| 81 | /* No such hook name registered */ |
| 82 | return NULL; |
| 83 | } |
| 84 | |
| 85 | /* Make sure the hook_elements array is initialized. */ |
| 86 | if (hook->hooks == NULL) |
| 87 | hook->hooks = notleak(tal_arr(NULL, struct hook_instance *, 0)); |
| 88 | |
| 89 | /* Ensure we don't register the same plugin multple times. */ |
| 90 | for (size_t i=0; i<tal_count(hook->hooks); i++) |
| 91 | if (hook->hooks[i]->plugin == plugin) |
| 92 | return NULL; |
| 93 | |
| 94 | /* Ok, we're sure they can register and they aren't yet registered, so |
| 95 | * register them. */ |
| 96 | h = tal(plugin, struct hook_instance); |
| 97 | h->plugin = plugin; |
| 98 | h->before = tal_arr(h, const char *, 0); |
| 99 | h->after = tal_arr(h, const char *, 0); |
| 100 | tal_add_destructor2(h, destroy_hook_instance, hook); |
| 101 | |
| 102 | tal_arr_expand(&hook->hooks, h); |
| 103 | return hook; |
| 104 | } |
| 105 | |
| 106 | /* Mutual recursion */ |
| 107 | static void plugin_hook_call_next(struct plugin_hook_request *ph_req); |
no test coverage detected