/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ #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 "hashmap.h" #include "sd-bus.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_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 { sd_bus_message_handler_t callback; void *userdata; unsigned last_iteration; uint64_t cookie; } 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; }; 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, sd_bus_message_handler_t callback, void *userdata, uint64_t cookie, struct bus_match_node **ret); 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); 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);