285 lines
8.3 KiB
C
285 lines
8.3 KiB
C
/***
|
|
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 "sd-bus.h"
|
|
|
|
#include "alloc-util.h"
|
|
#include "bus-control.h"
|
|
#include "bus-objects.h"
|
|
#include "bus-slot.h"
|
|
#include "string-util.h"
|
|
|
|
sd_bus_slot *bus_slot_allocate(
|
|
sd_bus *bus,
|
|
bool floating,
|
|
BusSlotType type,
|
|
size_t extra,
|
|
void *userdata) {
|
|
|
|
sd_bus_slot *slot;
|
|
|
|
assert(bus);
|
|
|
|
slot = malloc0(offsetof(sd_bus_slot, reply_callback) + extra);
|
|
if (!slot)
|
|
return NULL;
|
|
|
|
slot->n_ref = 1;
|
|
slot->type = type;
|
|
slot->bus = bus;
|
|
slot->floating = floating;
|
|
slot->userdata = userdata;
|
|
|
|
if (!floating)
|
|
sd_bus_ref(bus);
|
|
|
|
LIST_PREPEND(slots, bus->slots, slot);
|
|
|
|
return slot;
|
|
}
|
|
|
|
_public_ sd_bus_slot* sd_bus_slot_ref(sd_bus_slot *slot) {
|
|
|
|
if (!slot)
|
|
return NULL;
|
|
|
|
assert(slot->n_ref > 0);
|
|
|
|
slot->n_ref++;
|
|
return slot;
|
|
}
|
|
|
|
void bus_slot_disconnect(sd_bus_slot *slot) {
|
|
sd_bus *bus;
|
|
|
|
assert(slot);
|
|
|
|
if (!slot->bus)
|
|
return;
|
|
|
|
switch (slot->type) {
|
|
|
|
case BUS_REPLY_CALLBACK:
|
|
|
|
if (slot->reply_callback.cookie != 0)
|
|
ordered_hashmap_remove(slot->bus->reply_callbacks, &slot->reply_callback.cookie);
|
|
|
|
if (slot->reply_callback.timeout != 0)
|
|
prioq_remove(slot->bus->reply_callbacks_prioq, &slot->reply_callback, &slot->reply_callback.prioq_idx);
|
|
|
|
break;
|
|
|
|
case BUS_FILTER_CALLBACK:
|
|
slot->bus->filter_callbacks_modified = true;
|
|
LIST_REMOVE(callbacks, slot->bus->filter_callbacks, &slot->filter_callback);
|
|
break;
|
|
|
|
case BUS_MATCH_CALLBACK:
|
|
|
|
if (slot->match_added)
|
|
bus_remove_match_internal(slot->bus, slot->match_callback.match_string, slot->match_callback.cookie);
|
|
|
|
slot->bus->match_callbacks_modified = true;
|
|
bus_match_remove(&slot->bus->match_callbacks, &slot->match_callback);
|
|
|
|
free(slot->match_callback.match_string);
|
|
|
|
break;
|
|
|
|
case BUS_NODE_CALLBACK:
|
|
|
|
if (slot->node_callback.node) {
|
|
LIST_REMOVE(callbacks, slot->node_callback.node->callbacks, &slot->node_callback);
|
|
slot->bus->nodes_modified = true;
|
|
|
|
bus_node_gc(slot->bus, slot->node_callback.node);
|
|
}
|
|
|
|
break;
|
|
|
|
case BUS_NODE_ENUMERATOR:
|
|
|
|
if (slot->node_enumerator.node) {
|
|
LIST_REMOVE(enumerators, slot->node_enumerator.node->enumerators, &slot->node_enumerator);
|
|
slot->bus->nodes_modified = true;
|
|
|
|
bus_node_gc(slot->bus, slot->node_enumerator.node);
|
|
}
|
|
|
|
break;
|
|
|
|
case BUS_NODE_OBJECT_MANAGER:
|
|
|
|
if (slot->node_object_manager.node) {
|
|
LIST_REMOVE(object_managers, slot->node_object_manager.node->object_managers, &slot->node_object_manager);
|
|
slot->bus->nodes_modified = true;
|
|
|
|
bus_node_gc(slot->bus, slot->node_object_manager.node);
|
|
}
|
|
|
|
break;
|
|
|
|
case BUS_NODE_VTABLE:
|
|
|
|
if (slot->node_vtable.node && slot->node_vtable.interface && slot->node_vtable.vtable) {
|
|
const sd_bus_vtable *v;
|
|
|
|
for (v = slot->node_vtable.vtable; v->type != _SD_BUS_VTABLE_END; v++) {
|
|
struct vtable_member *x = NULL;
|
|
|
|
switch (v->type) {
|
|
|
|
case _SD_BUS_VTABLE_METHOD: {
|
|
struct vtable_member key;
|
|
|
|
key.path = slot->node_vtable.node->path;
|
|
key.interface = slot->node_vtable.interface;
|
|
key.member = v->x.method.member;
|
|
|
|
x = hashmap_remove(slot->bus->vtable_methods, &key);
|
|
break;
|
|
}
|
|
|
|
case _SD_BUS_VTABLE_PROPERTY:
|
|
case _SD_BUS_VTABLE_WRITABLE_PROPERTY: {
|
|
struct vtable_member key;
|
|
|
|
key.path = slot->node_vtable.node->path;
|
|
key.interface = slot->node_vtable.interface;
|
|
key.member = v->x.method.member;
|
|
|
|
|
|
x = hashmap_remove(slot->bus->vtable_properties, &key);
|
|
break;
|
|
}}
|
|
|
|
free(x);
|
|
}
|
|
}
|
|
|
|
free(slot->node_vtable.interface);
|
|
|
|
if (slot->node_vtable.node) {
|
|
LIST_REMOVE(vtables, slot->node_vtable.node->vtables, &slot->node_vtable);
|
|
slot->bus->nodes_modified = true;
|
|
|
|
bus_node_gc(slot->bus, slot->node_vtable.node);
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
assert_not_reached("Wut? Unknown slot type?");
|
|
}
|
|
|
|
bus = slot->bus;
|
|
|
|
slot->type = _BUS_SLOT_INVALID;
|
|
slot->bus = NULL;
|
|
LIST_REMOVE(slots, bus->slots, slot);
|
|
|
|
if (!slot->floating)
|
|
sd_bus_unref(bus);
|
|
}
|
|
|
|
_public_ sd_bus_slot* sd_bus_slot_unref(sd_bus_slot *slot) {
|
|
|
|
if (!slot)
|
|
return NULL;
|
|
|
|
assert(slot->n_ref > 0);
|
|
|
|
if (slot->n_ref > 1) {
|
|
slot->n_ref--;
|
|
return NULL;
|
|
}
|
|
|
|
bus_slot_disconnect(slot);
|
|
free(slot->description);
|
|
return mfree(slot);
|
|
}
|
|
|
|
_public_ sd_bus* sd_bus_slot_get_bus(sd_bus_slot *slot) {
|
|
assert_return(slot, NULL);
|
|
|
|
return slot->bus;
|
|
}
|
|
|
|
_public_ void *sd_bus_slot_get_userdata(sd_bus_slot *slot) {
|
|
assert_return(slot, NULL);
|
|
|
|
return slot->userdata;
|
|
}
|
|
|
|
_public_ void *sd_bus_slot_set_userdata(sd_bus_slot *slot, void *userdata) {
|
|
void *ret;
|
|
|
|
assert_return(slot, NULL);
|
|
|
|
ret = slot->userdata;
|
|
slot->userdata = userdata;
|
|
|
|
return ret;
|
|
}
|
|
|
|
_public_ sd_bus_message *sd_bus_slot_get_current_message(sd_bus_slot *slot) {
|
|
assert_return(slot, NULL);
|
|
assert_return(slot->type >= 0, NULL);
|
|
|
|
if (slot->bus->current_slot != slot)
|
|
return NULL;
|
|
|
|
return slot->bus->current_message;
|
|
}
|
|
|
|
_public_ sd_bus_message_handler_t sd_bus_slot_get_current_handler(sd_bus_slot *slot) {
|
|
assert_return(slot, NULL);
|
|
assert_return(slot->type >= 0, NULL);
|
|
|
|
if (slot->bus->current_slot != slot)
|
|
return NULL;
|
|
|
|
return slot->bus->current_handler;
|
|
}
|
|
|
|
_public_ void* sd_bus_slot_get_current_userdata(sd_bus_slot *slot) {
|
|
assert_return(slot, NULL);
|
|
assert_return(slot->type >= 0, NULL);
|
|
|
|
if (slot->bus->current_slot != slot)
|
|
return NULL;
|
|
|
|
return slot->bus->current_userdata;
|
|
}
|
|
|
|
_public_ int sd_bus_slot_set_description(sd_bus_slot *slot, const char *description) {
|
|
assert_return(slot, -EINVAL);
|
|
|
|
return free_and_strdup(&slot->description, description);
|
|
}
|
|
|
|
_public_ int sd_bus_slot_get_description(sd_bus_slot *slot, const char **description) {
|
|
assert_return(slot, -EINVAL);
|
|
assert_return(description, -EINVAL);
|
|
assert_return(slot->description, -ENXIO);
|
|
|
|
*description = slot->description;
|
|
return 0;
|
|
}
|