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authorLennart Poettering <lennart@poettering.net>2010-02-01 03:33:24 +0100
committerLennart Poettering <lennart@poettering.net>2010-02-01 03:33:24 +0100
commitea4309869e75497ba6a97c540646cb66a157a4d9 (patch)
tree8a00d7d42718d74e1b88ecb6e074ce9eb1b8a3fd /dbus-unit.c
parentb9f880f4f4903f5dd8198fc1e2e920a9850ac86e (diff)
add basic (and not very useful) D-Bus support
Diffstat (limited to 'dbus-unit.c')
-rw-r--r--dbus-unit.c133
1 files changed, 133 insertions, 0 deletions
diff --git a/dbus-unit.c b/dbus-unit.c
new file mode 100644
index 0000000000..5988f96102
--- /dev/null
+++ b/dbus-unit.c
@@ -0,0 +1,133 @@
+/*-*- Mode: C; c-basic-offset: 8 -*-*/
+
+#include <errno.h>
+
+#include "dbus.h"
+#include "log.h"
+
+static const char introspection[] =
+ DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
+ "<node>"
+ " <!-- you suck -->"
+ " <interface name=\"org.freedesktop.systemd1.Unit\">"
+ " <property name=\"Id\" type=\"s\" access=\"read\"/>"
+ " <property name=\"Description\" type=\"s\" access=\"read\"/>"
+ " <property name=\"LoadState\" type=\"s\" access=\"read\"/>"
+ " <property name=\"ActiveState\" type=\"s\" access=\"read\"/>"
+ " </interface>"
+ BUS_PROPERTIES_INTERFACE
+ BUS_INTROSPECTABLE_INTERFACE
+ "</node>";
+
+static int bus_unit_append_id(Manager *m, DBusMessageIter *i, const char *property, void *data) {
+ Unit *u = data;
+ const char *id;
+
+ assert(m);
+ assert(i);
+ assert(property);
+ assert(u);
+
+ id = unit_id(u);
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &u))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_unit_append_description(Manager *m, DBusMessageIter *i, const char *property, void *data) {
+ Unit *u = data;
+ const char *d;
+
+ assert(m);
+ assert(i);
+ assert(property);
+ assert(u);
+
+ d = unit_description(u);
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &d))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_unit_append_load_state(Manager *m, DBusMessageIter *i, const char *property, void *data) {
+ Unit *u = data;
+ const char *state;
+
+ assert(m);
+ assert(i);
+ assert(property);
+ assert(u);
+
+ state = unit_load_state_to_string(u->meta.load_state);
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &state))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int bus_unit_append_active_state(Manager *m, DBusMessageIter *i, const char *property, void *data) {
+ Unit *u = data;
+ const char *state;
+
+ assert(m);
+ assert(i);
+ assert(property);
+ assert(u);
+
+ state = unit_active_state_to_string(unit_active_state(u));
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &state))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static DBusHandlerResult bus_unit_message_dispatch(Unit *u, DBusMessage *message) {
+
+ const BusProperty properties[] = {
+ { "org.freedesktop.systemd1.Unit", "Id", bus_unit_append_id, "s", u },
+ { "org.freedesktop.systemd1.Unit", "Description", bus_unit_append_description, "s", u },
+ { "org.freedesktop.systemd1.Unit", "LoadState", bus_unit_append_load_state, "s", u },
+ { "org.freedesktop.systemd1.Unit", "ActiveState", bus_unit_append_active_state, "s", u },
+ { NULL, NULL, NULL, NULL, NULL }
+ };
+
+ return bus_default_message_handler(u->meta.manager, message, introspection, properties);
+}
+
+static DBusHandlerResult bus_unit_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
+ Manager *m = data;
+ Unit *u;
+ int r;
+
+ assert(connection);
+ assert(message);
+ assert(m);
+
+ 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 ((r = manager_get_unit_from_dbus_path(m, dbus_message_get_path(message), &u)) < 0) {
+
+ if (r == -ENOMEM)
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
+
+ if (r == -ENOENT)
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+
+ return bus_send_error_reply(m, message, NULL, r);
+ }
+
+ return bus_unit_message_dispatch(u, message);
+}
+
+const DBusObjectPathVTable bus_unit_vtable = {
+ .message_function = bus_unit_message_handler
+};