| 1 | /* |
| 2 | * This file is part of secnet. |
| 3 | * See README for full list of copyright holders. |
| 4 | * |
| 5 | * secnet is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version d of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * secnet is distributed in the hope that it will be useful, but |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * version 3 along with secnet; if not, see |
| 17 | * https://www.gnu.org/licenses/gpl.html. |
| 18 | */ |
| 19 | |
| 20 | #include "secnet.h" |
| 21 | #include "comm-common.h" |
| 22 | |
| 23 | void comm_request_notify(void *commst, void *nst, comm_notify_fn *fn) |
| 24 | { |
| 25 | struct commcommon *st=commst; |
| 26 | struct comm_notify_entry *n; |
| 27 | |
| 28 | NEW(n); |
| 29 | n->fn=fn; |
| 30 | n->state=nst; |
| 31 | LIST_INSERT_HEAD(&st->notify, n, entry); |
| 32 | } |
| 33 | |
| 34 | void comm_release_notify(void *commst, void *nst, comm_notify_fn *fn) |
| 35 | { |
| 36 | struct commcommon *st=commst; |
| 37 | struct comm_notify_entry *n, *t; |
| 38 | |
| 39 | /* XXX untested */ |
| 40 | LIST_FOREACH_SAFE(n, &st->notify, entry, t) { |
| 41 | if (n->state==nst && n->fn==fn) { |
| 42 | LIST_REMOVE(n, entry); |
| 43 | free(n); |
| 44 | } |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | bool_t comm_notify(struct comm_notify_list *notify, |
| 49 | struct buffer_if *buf, const struct comm_addr *ca) |
| 50 | { |
| 51 | struct comm_notify_entry *n; |
| 52 | |
| 53 | LIST_FOREACH(n, notify, entry) { |
| 54 | if (n->fn(n->state, buf, ca)) { |
| 55 | return True; |
| 56 | } |
| 57 | } |
| 58 | return False; |
| 59 | } |
| 60 | |
| 61 | void comm_apply(struct commcommon *cc, void *st) |
| 62 | { |
| 63 | assert(cc==st); |
| 64 | cc->cl.type=CL_COMM; |
| 65 | cc->cl.apply=NULL; |
| 66 | cc->cl.interface=&cc->ops; |
| 67 | cc->ops.st=cc; |
| 68 | cc->ops.request_notify=comm_request_notify; |
| 69 | cc->ops.release_notify=comm_release_notify; |
| 70 | LIST_INIT(&cc->notify); |
| 71 | cc->rbuf=NULL; |
| 72 | } |