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#pragma once
/***
This file is part of systemd.
Copyright 2013 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <systemd/sd-bus.h>
#include "hashmap.h"
enum bus_match_node_type {
BUS_MATCH_ROOT,
BUS_MATCH_VALUE,
BUS_MATCH_LEAF,
/* The following are all different kinds of compare nodes */
BUS_MATCH_SENDER,
BUS_MATCH_MESSAGE_TYPE,
BUS_MATCH_DESTINATION,
BUS_MATCH_INTERFACE,
BUS_MATCH_MEMBER,
BUS_MATCH_PATH,
BUS_MATCH_PATH_NAMESPACE,
BUS_MATCH_ARG,
BUS_MATCH_ARG_LAST = BUS_MATCH_ARG + 63,
BUS_MATCH_ARG_PATH,
BUS_MATCH_ARG_PATH_LAST = BUS_MATCH_ARG_PATH + 63,
BUS_MATCH_ARG_NAMESPACE,
BUS_MATCH_ARG_NAMESPACE_LAST = BUS_MATCH_ARG_NAMESPACE + 63,
BUS_MATCH_ARG_HAS,
BUS_MATCH_ARG_HAS_LAST = BUS_MATCH_ARG_HAS + 63,
_BUS_MATCH_NODE_TYPE_MAX,
_BUS_MATCH_NODE_TYPE_INVALID = -1
};
struct bus_match_node {
enum bus_match_node_type type;
struct bus_match_node *parent, *next, *prev, *child;
union {
struct {
char *str;
uint8_t u8;
} value;
struct {
struct match_callback *callback;
} leaf;
struct {
/* If this is set, then the child is NULL */
Hashmap *children;
} compare;
};
};
struct bus_match_component {
enum bus_match_node_type type;
uint8_t value_u8;
char *value_str;
};
enum bus_match_scope {
BUS_MATCH_GENERIC,
BUS_MATCH_LOCAL,
BUS_MATCH_DRIVER,
};
int bus_match_run(sd_bus *bus, struct bus_match_node *root, sd_bus_message *m);
int bus_match_add(struct bus_match_node *root, struct bus_match_component *components, unsigned n_components, struct match_callback *callback);
int bus_match_remove(struct bus_match_node *root, struct match_callback *callback);
int bus_match_find(struct bus_match_node *root, struct bus_match_component *components, unsigned n_components, sd_bus_message_handler_t callback, void *userdata, struct match_callback **ret);
void bus_match_free(struct bus_match_node *node);
void bus_match_dump(struct bus_match_node *node, unsigned level);
const char* bus_match_node_type_to_string(enum bus_match_node_type t, char buf[], size_t l);
enum bus_match_node_type bus_match_node_type_from_string(const char *k, size_t n);
int bus_match_parse(const char *match, struct bus_match_component **_components, unsigned *_n_components);
void bus_match_parse_free(struct bus_match_component *components, unsigned n_components);
char *bus_match_to_string(struct bus_match_component *components, unsigned n_components);
enum bus_match_scope bus_match_get_scope(const struct bus_match_component *components, unsigned n_components);
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