X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=dbus.c;h=bef8bb885f068089aa6af82f43f988b867238e71;hb=036643a247c659db8e1b3df1778d51553a816ec9;hp=caafc975709024da5decb85f9cceff552204444a;hpb=0acb83e9e63206af9a2c6a35ca054453d235458a;p=elogind.git
diff --git a/dbus.c b/dbus.c
index caafc9757..bef8bb885 100644
--- a/dbus.c
+++ b/dbus.c
@@ -1,5 +1,24 @@
/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with systemd; If not, see .
+***/
+
#include
#include
@@ -257,11 +276,55 @@ static void bus_toggle_timeout(DBusTimeout *timeout, void *data) {
log_error("Failed to rearm timer: %s", strerror(-r));
}
-void bus_dispatch(Manager *m) {
+static DBusHandlerResult bus_message_filter(DBusConnection *connection, DBusMessage *message, void *data) {
+ Manager *m = data;
+ DBusError error;
+
+ assert(connection);
+ assert(message);
assert(m);
+ dbus_error_init(&error);
+
+ /* log_debug("Got D-Bus request: %s.%s() on %s", */
+ /* dbus_message_get_interface(message), */
+ /* dbus_message_get_member(message), */
+ /* dbus_message_get_path(message)); */
+
+ if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
+ log_error("Warning! D-Bus connection terminated.");
+
+ /* FIXME: we probably should restart D-Bus here */
+
+ } else if (dbus_message_is_signal(message, DBUS_INTERFACE_DBUS, "NameOwnerChanged")) {
+ const char *name, *old, *new;
+
+ if (!dbus_message_get_args(message, &error,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_STRING, &old,
+ DBUS_TYPE_STRING, &new,
+ DBUS_TYPE_INVALID))
+ log_error("Failed to parse NameOwnerChanged message: %s", error.message);
+ else {
+ if (set_remove(m->subscribed, (char*) name))
+ log_debug("Subscription client vanished: %s (left: %u)", name, set_size(m->subscribed));
+ }
+ }
+
+ dbus_error_free(&error);
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+}
+
+unsigned bus_dispatch(Manager *m) {
+ assert(m);
+
+ if (!m->request_bus_dispatch)
+ return 0;
+
if (dbus_connection_dispatch(m->bus) == DBUS_DISPATCH_COMPLETE)
m->request_bus_dispatch = false;
+
+ return 1;
}
static int request_name(Manager *m) {
@@ -309,10 +372,13 @@ int bus_init(Manager *m) {
if (m->bus)
return 0;
+ if (!(m->subscribed = set_new(string_hash_func, string_compare_func)))
+ return -ENOMEM;
+
dbus_connection_set_change_sigpipe(FALSE);
dbus_error_init(&error);
- if (!(m->bus = dbus_bus_get_private(m->is_init ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &error))) {
+ if (!(m->bus = dbus_bus_get_private(m->running_as == MANAGER_SESSION ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &error))) {
log_error("Failed to get D-Bus connection: %s", error.message);
dbus_error_free(&error);
return -ECONNREFUSED;
@@ -324,7 +390,22 @@ int bus_init(Manager *m) {
!dbus_connection_set_timeout_functions(m->bus, bus_add_timeout, bus_remove_timeout, bus_toggle_timeout, m, NULL) ||
!dbus_connection_register_object_path(m->bus, "/org/freedesktop/systemd1", &bus_manager_vtable, m) ||
!dbus_connection_register_fallback(m->bus, "/org/freedesktop/systemd1/unit", &bus_unit_vtable, m) ||
- !dbus_connection_register_fallback(m->bus, "/org/freedesktop/systemd1/job", &bus_job_vtable, m)) {
+ !dbus_connection_register_fallback(m->bus, "/org/freedesktop/systemd1/job", &bus_job_vtable, m) ||
+ !dbus_connection_add_filter(m->bus, bus_message_filter, m, NULL)) {
+ bus_done(m);
+ return -ENOMEM;
+ }
+
+ dbus_bus_add_match(m->bus,
+ "type='signal',"
+ "sender='"DBUS_SERVICE_DBUS"',"
+ "interface='"DBUS_INTERFACE_DBUS"',"
+ "path='"DBUS_PATH_DBUS"'",
+ &error);
+
+ if (dbus_error_is_set(&error)) {
+ log_error("Failed to register match: %s", error.message);
+ dbus_error_free(&error);
bus_done(m);
return -ENOMEM;
}
@@ -352,6 +433,16 @@ void bus_done(Manager *m) {
dbus_connection_unref(m->bus);
m->bus = NULL;
}
+
+ if (m->subscribed) {
+ char *c;
+
+ while ((c = set_steal_first(m->subscribed)))
+ free(c);
+
+ set_free(m->subscribed);
+ m->subscribed = NULL;
+ }
}
DBusHandlerResult bus_default_message_handler(Manager *m, DBusMessage *message, const char*introspection, const BusProperty *properties) {