C++ (Cpp) unit_ref_set示例

示例#1

文件： slice.c 项目： 275288698/systemd-ubuntu-with-dbus

static int slice_add_parent_slice(Slice *s) {
        char *a, *dash;
        Unit *parent;
        int r;

        assert(s);

        if (UNIT_ISSET(UNIT(s)->slice))
                return 0;

        if (unit_has_name(UNIT(s), SPECIAL_ROOT_SLICE))
                return 0;

        a = strdupa(UNIT(s)->id);
        dash = strrchr(a, '-');
        if (dash)
                strcpy(dash, ".slice");
        else
                a = (char*) SPECIAL_ROOT_SLICE;

        r = manager_load_unit(UNIT(s)->manager, a, NULL, NULL, &parent);
        if (r < 0)
                return r;

        unit_ref_set(&UNIT(s)->slice, parent);
        return 0;
}

示例#2

文件： busname.c 项目： freedesktop-unofficial-mirror/systemd__systemd

static int busname_add_extras(BusName *n) {
        Unit *u = UNIT(n);
        int r;

        assert(n);

        if (!n->name) {
                n->name = unit_name_to_prefix(u->id);
                if (!n->name)
                        return -ENOMEM;
        }

        if (!u->description) {
                r = unit_set_description(u, n->name);
                if (r < 0)
                        return r;
        }

        if (n->activating) {
                if (!UNIT_DEREF(n->service)) {
                        Unit *x;

                        r = unit_load_related_unit(u, ".service", &x);
                        if (r < 0)
                                return r;

                        unit_ref_set(&n->service, x);
                }

                r = unit_add_two_dependencies(u, UNIT_BEFORE, UNIT_TRIGGERS, UNIT_DEREF(n->service), true);
                if (r < 0)
                        return r;
        }

        if (u->default_dependencies) {
                r = busname_add_default_default_dependencies(n);
                if (r < 0)
                        return r;
        }

        return 0;
}