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1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | #pragma once | |
4 | ||
5 | /*** | |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2013 Lennart Poettering | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
11 | under the terms of the GNU Lesser General Public License as published by | |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | Lesser General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU Lesser General Public License | |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
22 | ***/ | |
23 | ||
24 | #include "hashmap.h" | |
25 | ||
26 | #include "sd-bus.h" | |
27 | ||
28 | enum bus_match_node_type { | |
29 | BUS_MATCH_ROOT, | |
30 | BUS_MATCH_VALUE, | |
31 | BUS_MATCH_LEAF, | |
32 | ||
33 | /* The following are all different kinds of compare nodes */ | |
34 | BUS_MATCH_MESSAGE_TYPE, | |
35 | BUS_MATCH_SENDER, | |
36 | BUS_MATCH_DESTINATION, | |
37 | BUS_MATCH_INTERFACE, | |
38 | BUS_MATCH_MEMBER, | |
39 | BUS_MATCH_PATH, | |
40 | BUS_MATCH_PATH_NAMESPACE, | |
41 | BUS_MATCH_ARG, | |
42 | BUS_MATCH_ARG_LAST = BUS_MATCH_ARG + 63, | |
43 | BUS_MATCH_ARG_PATH, | |
44 | BUS_MATCH_ARG_PATH_LAST = BUS_MATCH_ARG_PATH + 63, | |
45 | BUS_MATCH_ARG_NAMESPACE, | |
46 | BUS_MATCH_ARG_NAMESPACE_LAST = BUS_MATCH_ARG_NAMESPACE + 63, | |
47 | _BUS_MATCH_NODE_TYPE_MAX, | |
48 | _BUS_MATCH_NODE_TYPE_INVALID = -1 | |
49 | }; | |
50 | ||
51 | struct bus_match_node { | |
52 | enum bus_match_node_type type; | |
53 | struct bus_match_node *parent, *next, *prev, *child; | |
54 | ||
55 | union { | |
56 | struct { | |
392d5b37 | 57 | char *str; |
7286037f | 58 | uint8_t u8; |
392d5b37 LP |
59 | } value; |
60 | struct { | |
52f3ba91 | 61 | sd_bus_message_handler_t callback; |
392d5b37 | 62 | void *userdata; |
7286037f | 63 | unsigned last_iteration; |
c7819669 | 64 | uint64_t cookie; |
392d5b37 LP |
65 | } leaf; |
66 | struct { | |
67 | /* If this is set, then the child is NULL */ | |
68 | Hashmap *children; | |
69 | } compare; | |
70 | }; | |
71 | }; | |
72 | ||
c7819669 LP |
73 | struct bus_match_component { |
74 | enum bus_match_node_type type; | |
75 | uint8_t value_u8; | |
76 | char *value_str; | |
77 | }; | |
78 | ||
eb01ba5d | 79 | int bus_match_run(sd_bus *bus, struct bus_match_node *root, sd_bus_message *m); |
392d5b37 | 80 | |
c7819669 LP |
81 | int bus_match_add(struct bus_match_node *root, struct bus_match_component *components, unsigned n_components, sd_bus_message_handler_t callback, void *userdata, uint64_t cookie, struct bus_match_node **ret); |
82 | int bus_match_remove(struct bus_match_node *root, struct bus_match_component *components, unsigned n_components, sd_bus_message_handler_t callback, void *userdata, uint64_t *cookie); | |
392d5b37 LP |
83 | |
84 | void bus_match_free(struct bus_match_node *node); | |
85 | ||
86 | void bus_match_dump(struct bus_match_node *node, unsigned level); | |
87 | ||
88 | const char* bus_match_node_type_to_string(enum bus_match_node_type t, char buf[], size_t l); | |
89 | enum bus_match_node_type bus_match_node_type_from_string(const char *k, size_t n); | |
c7819669 LP |
90 | |
91 | int bus_match_parse(const char *match, struct bus_match_component **_components, unsigned *_n_components); | |
92 | void bus_match_parse_free(struct bus_match_component *components, unsigned n_components); |