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Diffstat (limited to 'src/libsystemd/libsystemd-internal/sd-bus/bus-slot.c')
-rw-r--r--src/libsystemd/libsystemd-internal/sd-bus/bus-slot.c286
1 files changed, 286 insertions, 0 deletions
diff --git a/src/libsystemd/libsystemd-internal/sd-bus/bus-slot.c b/src/libsystemd/libsystemd-internal/sd-bus/bus-slot.c
new file mode 100644
index 0000000000..b1783cd4a9
--- /dev/null
+++ b/src/libsystemd/libsystemd-internal/sd-bus/bus-slot.c
@@ -0,0 +1,286 @@
+/***
+ 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 "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);
+ free(slot);
+
+ return NULL;
+}
+
+_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;
+}
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