X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fdbus-job.c;h=667eb04a69907ff2b2bfc1f004a9617b869e3eb1;hp=0956dcff6f4c6cdb1d78d6b6ae51de63dcbd2e03;hb=288c783a9d9ab6ff1e11332fd3066f7a2a9c4912;hpb=a567261a29b4e19c0c195240411b7562063d99f8

diff --git a/src/dbus-job.c b/src/dbus-job.c
index 0956dcff6..667eb04a6 100644
--- a/src/dbus-job.c
+++ b/src/dbus-job.c
@@ -1,4 +1,4 @@
-/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
 
 /***
   This file is part of systemd.
@@ -28,7 +28,6 @@
 #define BUS_JOB_INTERFACE                                             \
         " <interface name=\"org.freedesktop.systemd1.Job\">\n"        \
         "  <method name=\"Cancel\"/>\n"                               \
-        "  <signal name=\"Changed\"/>\n"                              \
         "  <property name=\"Id\" type=\"u\" access=\"read\"/>\n"      \
         "  <property name=\"Unit\" type=\"(so)\" access=\"read\"/>\n" \
         "  <property name=\"JobType\" type=\"s\" access=\"read\"/>\n" \
@@ -40,11 +39,16 @@
         "<node>\n"                                                    \
         BUS_JOB_INTERFACE                                             \
         BUS_PROPERTIES_INTERFACE                                      \
+        BUS_PEER_INTERFACE                                            \
         BUS_INTROSPECTABLE_INTERFACE                                  \
         "</node>\n"
 
 const char bus_job_interface[] = BUS_JOB_INTERFACE;
 
+#define INVALIDATING_PROPERTIES                 \
+        "State\0"                               \
+        "\0"                                    \
+
 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_job_append_state, job_state, JobState);
 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_job_append_type, job_type, JobType);
 
@@ -118,15 +122,71 @@ static DBusHandlerResult bus_job_message_handler(DBusConnection *connection, DBu
         Manager *m = data;
         Job *j;
         int r;
+        DBusMessage *reply;
 
         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 (streq(dbus_message_get_path(message), "/org/freedesktop/systemd1/job")) {
+                /* Be nice to gdbus and return introspection data for our mid-level paths */
+
+                if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
+                        char *introspection = NULL;
+                        FILE *f;
+                        Iterator i;
+                        size_t size;
+
+                        if (!(reply = dbus_message_new_method_return(message)))
+                                goto oom;
+
+                        /* We roll our own introspection code here, instead of
+                         * relying on bus_default_message_handler() because we
+                         * need to generate our introspection string
+                         * dynamically. */
+
+                        if (!(f = open_memstream(&introspection, &size)))
+                                goto oom;
+
+                        fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
+                              "<node>\n", f);
+
+                        fputs(BUS_INTROSPECTABLE_INTERFACE, f);
+                        fputs(BUS_PEER_INTERFACE, f);
+
+                        HASHMAP_FOREACH(j, m->jobs, i)
+                                fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id);
+
+                        fputs("</node>\n", f);
+
+                        if (ferror(f)) {
+                                fclose(f);
+                                free(introspection);
+                                goto oom;
+                        }
+
+                        fclose(f);
+
+                        if (!introspection)
+                                goto oom;
+
+                        if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
+                                free(introspection);
+                                goto oom;
+                        }
+
+                        free(introspection);
+
+                        if (!dbus_connection_send(connection, reply, NULL))
+                                goto oom;
+
+                        dbus_message_unref(reply);
+
+                        return DBUS_HANDLER_RESULT_HANDLED;
+                }
+
+                return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+        }
 
         if ((r = manager_get_job_from_dbus_path(m, dbus_message_get_path(message), &j)) < 0) {
 
@@ -140,6 +200,12 @@ static DBusHandlerResult bus_job_message_handler(DBusConnection *connection, DBu
         }
 
         return bus_job_message_dispatch(j, connection, message);
+
+oom:
+        if (reply)
+                dbus_message_unref(reply);
+
+        return DBUS_HANDLER_RESULT_NEED_MEMORY;
 }
 
 const DBusObjectPathVTable bus_job_vtable = {
@@ -177,10 +243,11 @@ void bus_job_send_change_signal(Job *j) {
         DBusMessage *m = NULL;
 
         assert(j);
-        assert(j->in_dbus_queue);
 
-        LIST_REMOVE(Job, dbus_queue, j->manager->dbus_job_queue, j);
-        j->in_dbus_queue = false;
+        if (j->in_dbus_queue) {
+                LIST_REMOVE(Job, dbus_queue, j->manager->dbus_job_queue, j);
+                j->in_dbus_queue = false;
+        }
 
         if (!bus_has_subscriber(j->manager) && !j->bus_client) {
                 j->sent_dbus_new_signal = true;
@@ -191,10 +258,11 @@ void bus_job_send_change_signal(Job *j) {
                 goto oom;
 
         if (j->sent_dbus_new_signal) {
-                /* Send a change signal */
+                /* Send a properties changed signal */
 
-                if (!(m = dbus_message_new_signal(p, "org.freedesktop.systemd1.Job", "Changed")))
+                if (!(m = bus_properties_changed_new(p, "org.freedesktop.systemd1.Job", INVALIDATING_PROPERTIES)))
                         goto oom;
+
         } else {
                 /* Send a new signal */