exec: support unlimited resources

[elogind.git] / src / dbus-job.c

diff --git a/src/dbus-job.c b/src/dbus-job.c
index 0f76c7d8433cb061e3f2e53dfedfc65e55c0cee5..908ddba5379480672f9589294a395992f800700b 100644 (file)
--- a/src/dbus-job.c
+++ b/src/dbus-job.c
@@ -43,11 +43,14 @@
         BUS_INTROSPECTABLE_INTERFACE                                  \
         "</node>\n"
 
-const char bus_job_interface[] = BUS_JOB_INTERFACE;
+const char bus_job_interface[] _introspect_("Job") = BUS_JOB_INTERFACE;
+
+#define INTERFACES_LIST                              \
+        BUS_GENERIC_INTERFACES_LIST                  \
+        "org.freedesktop.systemd1.Job\0"
 
 #define INVALIDATING_PROPERTIES                 \
-        "State\0"                               \
-        "\0"                                    \
+        "State\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);
@@ -97,10 +100,10 @@ static DBusHandlerResult bus_job_message_dispatch(Job *j, DBusConnection *connec
                 if (!(reply = dbus_message_new_method_return(message)))
                         goto oom;
 
-                job_free(j);
+                job_finish_and_invalidate(j, JOB_CANCELED);
 
         } else
-                return bus_default_message_handler(j->manager, connection, message, INTROSPECTION, properties);
+                return bus_default_message_handler(j->manager, connection, message, INTROSPECTION, INTERFACES_LIST, properties);
 
         if (reply) {
                 if (!dbus_connection_send(connection, reply, NULL))
@@ -122,23 +125,95 @@ static DBusHandlerResult bus_job_message_handler(DBusConnection *connection, DBu
         Manager *m = data;
         Job *j;
         int r;
+        DBusMessage *reply;
 
         assert(connection);
         assert(message);
         assert(m);
 
+        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) {
 
                 if (r == -ENOMEM)
                         return DBUS_HANDLER_RESULT_NEED_MEMORY;
 
-                if (r == -ENOENT)
-                        return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+                if (r == -ENOENT) {
+                        DBusError e;
+
+                        dbus_error_init(&e);
+                        dbus_set_error_const(&e, DBUS_ERROR_UNKNOWN_OBJECT, "Unknown job");
+                        return bus_send_error_reply(m, connection, message, &e, r);
+                }
 
                 return bus_send_error_reply(m, connection, message, NULL, r);
         }
 
         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 = {
@@ -228,10 +303,10 @@ oom:
         log_error("Failed to allocate job change signal.");
 }
 
-void bus_job_send_removed_signal(Job *j, bool success) {
+void bus_job_send_removed_signal(Job *j) {
         char *p = NULL;
         DBusMessage *m = NULL;
-        dbus_bool_t b = success;
+        const char *r;
 
         assert(j);
 
@@ -247,10 +322,12 @@ void bus_job_send_removed_signal(Job *j, bool success) {
         if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "JobRemoved")))
                 goto oom;
 
+        r = job_result_to_string(j->result);
+
         if (!dbus_message_append_args(m,
                                       DBUS_TYPE_UINT32, &j->id,
                                       DBUS_TYPE_OBJECT_PATH, &p,
-                                      DBUS_TYPE_BOOLEAN, &b,
+                                      DBUS_TYPE_STRING, &r,
                                       DBUS_TYPE_INVALID))
                 goto oom;