#include "bus-signature.h"
#include "bus-introspect.h"
#include "bus-objects.h"
+#include "bus-util.h"
static int node_vtable_get_userdata(
sd_bus *bus,
r = node_vtable_get_userdata(bus, path, p->parent, &u);
if (r <= 0)
return r;
+ if (bus->nodes_modified)
+ return 0;
*userdata = vtable_property_convert_userdata(p->vtable, u);
return 1;
LIST_FOREACH(enumerators, c, first) {
char **children = NULL, **k;
+ if (bus->nodes_modified)
+ return 0;
+
r = c->callback(bus, prefix, &children, c->userdata);
if (r < 0)
return r;
continue;
}
- if (!object_path_is_valid(*k) && object_path_startswith(*k, prefix)) {
+ if (!object_path_is_valid(*k)){
free(*k);
r = -EINVAL;
continue;
}
+ if (!object_path_startswith(*k, prefix)) {
+ free(*k);
+ continue;
+ }
+
r = set_consume(s, *k);
}
r = add_enumerated_to_set(bus, prefix, n->enumerators, s);
if (r < 0)
return r;
+ if (bus->nodes_modified)
+ return 0;
LIST_FOREACH(siblings, i, n->child) {
char *t;
+ if (!object_path_startswith(i->path, prefix))
+ continue;
+
t = strdup(i->path);
if (!t)
return -ENOMEM;
r = add_subtree_to_set(bus, prefix, i, s);
if (r < 0)
return r;
+ if (bus->nodes_modified)
+ return 0;
}
return 0;
assert(found_object);
LIST_FOREACH(callbacks, c, first) {
+ if (bus->nodes_modified)
+ return 0;
+
if (require_fallback && !c->is_fallback)
continue;
if (c->last_iteration == bus->iteration_counter)
continue;
+ c->last_iteration = bus->iteration_counter;
+
r = sd_bus_message_rewind(m, true);
if (r < 0)
return r;
r = node_vtable_get_userdata(bus, m->path, c->parent, &u);
if (r <= 0)
return r;
+ if (bus->nodes_modified)
+ return 0;
*found_object = true;
+ if (c->last_iteration == bus->iteration_counter)
+ return 0;
+
+ c->last_iteration = bus->iteration_counter;
+
r = sd_bus_message_rewind(m, true);
if (r < 0)
return r;
- r = sd_bus_message_get_signature(m, true, &signature);
- if (r < 0)
- return r;
+ signature = sd_bus_message_get_signature(m, true);
+ if (!signature)
+ return -EINVAL;
if (!streq(strempty(c->vtable->x.method.signature), signature)) {
r = sd_bus_reply_method_errorf(bus, m,
- "org.freedesktop.DBus.Error.InvalidArgs",
+ SD_BUS_ERROR_INVALID_ARGS,
"Invalid arguments '%s' to call %s:%s, expecting '%s'.",
signature, c->interface, c->member, strempty(c->vtable->x.method.signature));
if (r < 0)
sd_bus_error *error,
void *userdata) {
- int r;
- void *p;
+ const void *p;
assert(bus);
assert(v);
/* Automatic handling if no callback is defined. */
+ if (streq(v->x.property.signature, "as"))
+ return sd_bus_message_append_strv(m, *(char***) userdata);
+
assert(signature_is_single(v->x.property.signature, false));
assert(bus_type_is_basic(v->x.property.signature[0]));
switch (v->x.property.signature[0]) {
case SD_BUS_TYPE_STRING:
- case SD_BUS_TYPE_OBJECT_PATH:
case SD_BUS_TYPE_SIGNATURE:
+ p = strempty(*(char**) userdata);
+ break;
+
+ case SD_BUS_TYPE_OBJECT_PATH:
p = *(char**) userdata;
+ assert(p);
break;
default:
break;
}
- r = sd_bus_message_append_basic(m, v->x.property.signature[0], p);
- if (r < 0)
- return r;
-
- return 1;
+ return sd_bus_message_append_basic(m, v->x.property.signature[0], p);
}
static int invoke_property_set(
r = vtable_property_get_userdata(bus, m->path, c, &u);
if (r <= 0)
return r;
+ if (bus->nodes_modified)
+ return 0;
*found_object = true;
if (r < 0)
return r;
- c->last_iteration = bus->iteration_counter;
-
if (is_get) {
+ /* Note that we do not protect against reexecution
+ * here (using the last_iteration check, see below),
+ * should the node tree have changed and we got called
+ * again. We assume that property Get() calls are
+ * ultimately without side-effects or if they aren't
+ * then at least idempotent. */
+
r = sd_bus_message_open_container(reply, 'v', c->vtable->x.property.signature);
if (r < 0)
return r;
return 1;
}
+ if (bus->nodes_modified)
+ return 0;
+
r = sd_bus_message_close_container(reply);
if (r < 0)
return r;
} else {
if (c->vtable->type != _SD_BUS_VTABLE_WRITABLE_PROPERTY)
- sd_bus_error_setf(&error, "org.freedesktop.DBus.Error.PropertyReadOnly", "Property '%s' is not writable.", c->member);
+ sd_bus_error_setf(&error, SD_BUS_ERROR_PROPERTY_READ_ONLY, "Property '%s' is not writable.", c->member);
else {
+ /* Avoid that we call the set routine more
+ * than once if the processing of this message
+ * got restarted because the node tree
+ * changed. */
+ if (c->last_iteration == bus->iteration_counter)
+ return 0;
+
+ c->last_iteration = bus->iteration_counter;
+
r = sd_bus_message_enter_container(m, 'v', c->vtable->x.property.signature);
if (r < 0)
return r;
return 1;
}
+ if (bus->nodes_modified)
+ return 0;
+
r = sd_bus_message_exit_container(m);
if (r < 0)
return r;
r = invoke_property_get(bus, v, path, c->interface, v->x.property.member, reply, error, vtable_property_convert_userdata(v, userdata));
if (r < 0)
return r;
-
if (sd_bus_error_is_set(error))
return 0;
+ if (bus->nodes_modified)
+ return 0;
r = sd_bus_message_close_container(reply);
if (r < 0)
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
struct node_vtable *c;
- bool found_interface = false;
+ bool found_interface;
int r;
assert(bus);
if (r < 0)
return r;
+ found_interface = !iface ||
+ streq(iface, "org.freedesktop.DBus.Properties") ||
+ streq(iface, "org.freedesktop.DBus.Peer") ||
+ streq(iface, "org.freedesktop.DBus.Introspectable");
+
LIST_FOREACH(vtables, c, first) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
void *u;
r = node_vtable_get_userdata(bus, m->path, c, &u);
if (r < 0)
return r;
+ if (bus->nodes_modified)
+ return 0;
if (r == 0)
continue;
continue;
found_interface = true;
- c->last_iteration = bus->iteration_counter;
-
r = vtable_append_all_properties(bus, reply, m->path, c, u, &error);
if (r < 0)
return r;
return 1;
}
+ if (bus->nodes_modified)
+ return 0;
}
if (!found_interface) {
r = sd_bus_reply_method_errorf(
bus, m,
- "org.freedesktop.DBus.Error.UnknownInterface",
+ SD_BUS_ERROR_UNKNOWN_INTERFACE,
"Unknown interface '%s'.", iface);
if (r < 0)
return r;
if (node_vtable_get_userdata(bus, path, c, NULL) > 0)
return true;
+ if (bus->nodes_modified)
+ return false;
}
return !require_fallback && (n->enumerators || n->object_manager);
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_set_free_free_ Set *s = NULL;
+ const char *previous_interface = NULL;
struct introspect intro;
struct node_vtable *c;
bool empty;
r = get_child_nodes(bus, m->path, n, &s);
if (r < 0)
return r;
+ if (bus->nodes_modified)
+ return 0;
r = introspect_begin(&intro);
if (r < 0)
r = node_vtable_get_userdata(bus, m->path, c, NULL);
if (r < 0)
return r;
+ if (bus->nodes_modified)
+ return 0;
if (r == 0)
continue;
empty = false;
- r = introspect_write_interface(&intro, c->interface, c->vtable);
+ if (!streq_ptr(previous_interface, c->interface)) {
+
+ if (previous_interface)
+ fputs(" </interface>\n", intro.f);
+
+ fprintf(intro.f, " <interface name=\"%s\">\n", c->interface);
+ }
+
+ r = introspect_write_interface(&intro, c->vtable);
if (r < 0)
goto finish;
+
+ previous_interface = c->interface;
}
+ if (previous_interface)
+ fputs(" </interface>\n", intro.f);
+
if (empty) {
/* Nothing?, let's see if we exist at all, and if not
* refuse to do anything */
r = bus_node_exists(bus, n, m->path, require_fallback);
if (r < 0)
return r;
-
+ if (bus->nodes_modified)
+ return 0;
if (r == 0)
goto finish;
}
return r;
}
-static int object_manager_serialize_vtable(
- sd_bus *bus,
- sd_bus_message *reply,
- const char *path,
- struct node_vtable *c,
- sd_bus_error *error,
- void *userdata) {
-
- int r;
-
- assert(bus);
- assert(reply);
- assert(path);
- assert(c);
- assert(error);
-
- r = sd_bus_message_open_container(reply, 'e', "sa{sv}");
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(reply, "s", c->interface);
- if (r < 0)
- return r;
-
- r = sd_bus_message_open_container(reply, 'a', "{sv}");
- if (r < 0)
- return r;
-
- r = vtable_append_all_properties(bus, reply, path, c, userdata, error);
- if (r < 0)
- return r;
-
- r = sd_bus_message_close_container(reply);
- if (r < 0)
- return r;
-
- r = sd_bus_message_close_container(reply);
- if (r < 0)
- return r;
-
- return 0;
-}
-
static int object_manager_serialize_path(
sd_bus *bus,
sd_bus_message *reply,
bool require_fallback,
sd_bus_error *error) {
+ const char *previous_interface = NULL;
+ bool found_something = false;
struct node_vtable *i;
struct node *n;
- bool found_something = false;
int r;
assert(bus);
r = node_vtable_get_userdata(bus, path, i, &u);
if (r < 0)
return r;
+ if (bus->nodes_modified)
+ return 0;
if (r == 0)
continue;
if (!found_something) {
+
+ /* Open the object part */
+
r = sd_bus_message_open_container(reply, 'e', "oa{sa{sv}}");
if (r < 0)
return r;
found_something = true;
}
- r = object_manager_serialize_vtable(bus, reply, path, i, error, u);
+ if (!streq_ptr(previous_interface, i->interface)) {
+
+ /* Maybe close the previous interface part */
+
+ if (previous_interface) {
+ r = sd_bus_message_close_container(reply);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_close_container(reply);
+ if (r < 0)
+ return r;
+ }
+
+ /* Open the new interface part */
+
+ r = sd_bus_message_open_container(reply, 'e', "sa{sv}");
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(reply, "s", i->interface);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_open_container(reply, 'a', "{sv}");
+ if (r < 0)
+ return r;
+ }
+
+ r = vtable_append_all_properties(bus, reply, path, i, u, error);
if (r < 0)
return r;
if (sd_bus_error_is_set(error))
return 0;
+ if (bus->nodes_modified)
+ return 0;
+
+ previous_interface = i->interface;
+ }
+
+ if (previous_interface) {
+ r = sd_bus_message_close_container(reply);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_close_container(reply);
+ if (r < 0)
+ return r;
}
if (found_something) {
return r;
if (sd_bus_error_is_set(error))
return 0;
+ if (bus->nodes_modified)
+ return 0;
/* Second, add fallback vtables registered for any of the prefixes */
prefix = alloca(strlen(path) + 1);
r = object_manager_serialize_path(bus, reply, prefix, path, true, error);
if (r < 0)
return r;
-
if (sd_bus_error_is_set(error))
return 0;
+ if (bus->nodes_modified)
+ return 0;
}
return 0;
r = get_child_nodes(bus, m->path, n, &s);
if (r < 0)
return r;
+ if (bus->nodes_modified)
+ return 0;
r = sd_bus_message_new_method_return(bus, m, &reply);
if (r < 0)
return 1;
}
+
+ if (bus->nodes_modified)
+ return 0;
}
}
r = node_callbacks_run(bus, m, n->callbacks, require_fallback, found_object);
if (r != 0)
return r;
+ if (bus->nodes_modified)
+ return 0;
if (!m->interface || !m->member)
return 0;
r = method_callbacks_run(bus, m, v, require_fallback, found_object);
if (r != 0)
return r;
+ if (bus->nodes_modified)
+ return 0;
}
/* Then, look for a known property */
return r;
}
+ if (bus->nodes_modified)
+ return 0;
+
if (!*found_object) {
r = bus_node_exists(bus, n, m->path, require_fallback);
if (r < 0)
return r;
-
if (r > 0)
*found_object = true;
}
assert(bus);
assert(m);
- if (m->header->type != SD_BUS_MESSAGE_TYPE_METHOD_CALL)
+ if (m->header->type != SD_BUS_MESSAGE_METHOD_CALL)
return 0;
if (!m->path)
sd_bus_message_is_method_call(m, "org.freedesktop.DBus.Properties", "Set"))
r = sd_bus_reply_method_errorf(
bus, m,
- "org.freedesktop.DBus.Error.UnknownProperty",
+ SD_BUS_ERROR_UNKNOWN_PROPERTY,
"Unknown property or interface.");
else
r = sd_bus_reply_method_errorf(
bus, m,
- "org.freedesktop.DBus.Error.UnknownMethod",
+ SD_BUS_ERROR_UNKNOWN_METHOD,
"Unknown method '%s' or interface '%s'.", m->member, m->interface);
if (r < 0)
c->is_fallback = fallback;
LIST_PREPEND(callbacks, n->callbacks, c);
+ bus->nodes_modified = true;
+
return 0;
fail:
free(c);
bus_node_gc(bus, n);
+ bus->nodes_modified = true;
return 1;
}
-int sd_bus_add_object(sd_bus *bus, const char *path, sd_bus_message_handler_t callback, void *userdata) {
+_public_ int sd_bus_add_object(sd_bus *bus,
+ const char *path,
+ sd_bus_message_handler_t callback,
+ void *userdata) {
+
return bus_add_object(bus, false, path, callback, userdata);
}
-int sd_bus_remove_object(sd_bus *bus, const char *path, sd_bus_message_handler_t callback, void *userdata) {
+_public_ int sd_bus_remove_object(sd_bus *bus,
+ const char *path,
+ sd_bus_message_handler_t callback,
+ void *userdata) {
+
return bus_remove_object(bus, false, path, callback, userdata);
}
-int sd_bus_add_fallback(sd_bus *bus, const char *prefix, sd_bus_message_handler_t callback, void *userdata) {
+_public_ int sd_bus_add_fallback(sd_bus *bus,
+ const char *prefix,
+ sd_bus_message_handler_t callback,
+ void *userdata) {
+
return bus_add_object(bus, true, prefix, callback, userdata);
}
-int sd_bus_remove_fallback(sd_bus *bus, const char *prefix, sd_bus_message_handler_t callback, void *userdata) {
+_public_ int sd_bus_remove_fallback(sd_bus *bus,
+ const char *prefix,
+ sd_bus_message_handler_t callback,
+ void *userdata) {
+
return bus_remove_object(bus, true, prefix, callback, userdata);
}
sd_bus_object_find_t find,
void *userdata) {
- struct node_vtable *c = NULL, *i;
+ struct node_vtable *c = NULL, *i, *existing = NULL;
const sd_bus_vtable *v;
struct node *n;
int r;
assert_return(vtable[0].type == _SD_BUS_VTABLE_START, -EINVAL);
assert_return(vtable[0].x.start.element_size == sizeof(struct sd_bus_vtable), -EINVAL);
assert_return(!bus_pid_changed(bus), -ECHILD);
+ assert_return(!streq(interface, "org.freedesktop.DBus.Properties") &&
+ !streq(interface, "org.freedesktop.DBus.Introspectable") &&
+ !streq(interface, "org.freedesktop.DBus.Peer") &&
+ !streq(interface, "org.freedesktop.DBus.ObjectManager"), -EINVAL);
r = hashmap_ensure_allocated(&bus->vtable_methods, vtable_member_hash_func, vtable_member_compare_func);
if (r < 0)
return -ENOMEM;
LIST_FOREACH(vtables, i, n->vtables) {
- if (streq(i->interface, interface)) {
- r = -EEXIST;
- goto fail;
- }
-
if (i->is_fallback != fallback) {
r = -EPROTOTYPE;
goto fail;
}
+
+ if (streq(i->interface, interface)) {
+
+ if (i->vtable == vtable) {
+ r = -EEXIST;
+ goto fail;
+ }
+
+ existing = i;
+ }
}
c = new0(struct node_vtable, 1);
if (!member_name_is_valid(v->x.property.member) ||
!signature_is_single(v->x.property.signature, false) ||
- !(v->x.property.get || bus_type_is_basic(v->x.property.signature[0])) ||
+ !(v->x.property.get || bus_type_is_basic(v->x.property.signature[0]) || streq(v->x.property.signature, "as")) ||
v->flags & SD_BUS_VTABLE_METHOD_NO_REPLY ||
(v->flags & SD_BUS_VTABLE_PROPERTY_INVALIDATE_ONLY && !(v->flags & SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE))) {
r = -EINVAL;
case _SD_BUS_VTABLE_SIGNAL:
if (!member_name_is_valid(v->x.signal.member) ||
- !signature_is_single(strempty(v->x.signal.signature), false)) {
+ !signature_is_valid(strempty(v->x.signal.signature), false)) {
r = -EINVAL;
goto fail;
}
}
}
- LIST_PREPEND(vtables, n->vtables, c);
+ LIST_INSERT_AFTER(vtables, n->vtables, existing, c);
+ bus->nodes_modified = true;
+
return 0;
fail:
sd_bus *bus,
const char *path,
const char *interface,
- bool fallback) {
+ const sd_bus_vtable *vtable,
+ bool fallback,
+ sd_bus_object_find_t find,
+ void *userdata) {
struct node_vtable *c;
struct node *n;
return 0;
LIST_FOREACH(vtables, c, n->vtables)
- if (streq(c->interface, interface) && c->is_fallback == fallback)
+ if (streq(c->interface, interface) &&
+ c->is_fallback == fallback &&
+ c->vtable == vtable &&
+ c->find == find &&
+ c->userdata == userdata)
break;
if (!c)
free_node_vtable(bus, c);
bus_node_gc(bus, n);
+ bus->nodes_modified = true;
+
return 1;
}
-int sd_bus_add_object_vtable(
+_public_ int sd_bus_add_object_vtable(
sd_bus *bus,
const char *path,
const char *interface,
return add_object_vtable_internal(bus, path, interface, vtable, false, NULL, userdata);
}
-int sd_bus_remove_object_vtable(
+_public_ int sd_bus_remove_object_vtable(
sd_bus *bus,
const char *path,
- const char *interface) {
+ const char *interface,
+ const sd_bus_vtable *vtable,
+ void *userdata) {
- return remove_object_vtable_internal(bus, path, interface, false);
+ return remove_object_vtable_internal(bus, path, interface, vtable, false, NULL, userdata);
}
-int sd_bus_add_fallback_vtable(
+_public_ int sd_bus_add_fallback_vtable(
sd_bus *bus,
const char *path,
const char *interface,
return add_object_vtable_internal(bus, path, interface, vtable, true, find, userdata);
}
-int sd_bus_remove_fallback_vtable(
+_public_ int sd_bus_remove_fallback_vtable(
sd_bus *bus,
const char *path,
- const char *interface) {
+ const char *interface,
+ const sd_bus_vtable *vtable,
+ sd_bus_object_find_t find,
+ void *userdata) {
- return remove_object_vtable_internal(bus, path, interface, true);
+ return remove_object_vtable_internal(bus, path, interface, vtable, true, find, userdata);
}
-int sd_bus_add_node_enumerator(
+_public_ int sd_bus_add_node_enumerator(
sd_bus *bus,
const char *path,
sd_bus_node_enumerator_t callback,
c->userdata = userdata;
LIST_PREPEND(enumerators, n->enumerators, c);
+
+ bus->nodes_modified = true;
+
return 0;
fail:
return r;
}
-int sd_bus_remove_node_enumerator(
+_public_ int sd_bus_remove_node_enumerator(
sd_bus *bus,
const char *path,
sd_bus_node_enumerator_t callback,
bus_node_gc(bus, n);
+ bus->nodes_modified = true;
+
return 1;
}
char **names) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
- bool has_invalidating = false;
- struct vtable_member key;
+ bool has_invalidating = false, has_changing = false;
+ struct vtable_member key = {};
struct node_vtable *c;
struct node *n;
char **property;
if (!n)
return 0;
- LIST_FOREACH(vtables, c, n->vtables) {
- if (require_fallback && !c->is_fallback)
- continue;
-
- if (streq(c->interface, interface))
- break;
- }
-
- if (!c)
- return 0;
-
- r = node_vtable_get_userdata(bus, path, c, &u);
- if (r <= 0)
- return r;
-
r = sd_bus_message_new_signal(bus, path, "org.freedesktop.DBus.Properties", "PropertiesChanged", &m);
if (r < 0)
return r;
key.path = prefix;
key.interface = interface;
- STRV_FOREACH(property, names) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- struct vtable_member *v;
-
- assert_return(member_name_is_valid(*property), -EINVAL);
-
- key.member = *property;
- v = hashmap_get(bus->vtable_properties, &key);
- if (!v)
- return -ENOENT;
-
- assert(c == v->parent);
- assert_return(v->vtable->flags & SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE, -EDOM);
+ LIST_FOREACH(vtables, c, n->vtables) {
+ if (require_fallback && !c->is_fallback)
+ continue;
- if (v->vtable->flags & SD_BUS_VTABLE_PROPERTY_INVALIDATE_ONLY) {
- has_invalidating = true;
+ if (!streq(c->interface, interface))
continue;
- }
- r = sd_bus_message_open_container(m, 'e', "sv");
+ r = node_vtable_get_userdata(bus, path, c, &u);
if (r < 0)
return r;
+ if (bus->nodes_modified)
+ return 0;
+ if (r == 0)
+ continue;
- r = sd_bus_message_append(m, "s", *property);
- if (r < 0)
- return r;
+ STRV_FOREACH(property, names) {
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ struct vtable_member *v;
- r = sd_bus_message_open_container(m, 'v', v->vtable->x.property.signature);
- if (r < 0)
- return r;
+ assert_return(member_name_is_valid(*property), -EINVAL);
- r = invoke_property_get(bus, v->vtable, m->path, interface, *property, m, &error, vtable_property_convert_userdata(v->vtable, u));
- if (r < 0)
- return r;
+ key.member = *property;
+ v = hashmap_get(bus->vtable_properties, &key);
+ if (!v)
+ return -ENOENT;
+
+ /* If there are two vtables for the same
+ * interface, let's handle this property when
+ * we come to that vtable. */
+ if (c != v->parent)
+ continue;
- if (sd_bus_error_is_set(&error))
- return bus_error_to_errno(&error);
+ assert_return(v->vtable->flags & SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE, -EDOM);
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return r;
+ if (v->vtable->flags & SD_BUS_VTABLE_PROPERTY_INVALIDATE_ONLY) {
+ has_invalidating = true;
+ continue;
+ }
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return r;
+ has_changing = true;
+
+ r = sd_bus_message_open_container(m, 'e', "sv");
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(m, "s", *property);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_open_container(m, 'v', v->vtable->x.property.signature);
+ if (r < 0)
+ return r;
+
+ r = invoke_property_get(bus, v->vtable, m->path, interface, *property, m, &error, vtable_property_convert_userdata(v->vtable, u));
+ if (r < 0)
+ return r;
+ if (bus->nodes_modified)
+ return 0;
+
+ r = sd_bus_message_close_container(m);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_close_container(m);
+ if (r < 0)
+ return r;
+ }
}
+ if (!has_invalidating && !has_changing)
+ return 0;
+
r = sd_bus_message_close_container(m);
if (r < 0)
return r;
return r;
if (has_invalidating) {
- STRV_FOREACH(property, names) {
- struct vtable_member *v;
-
- key.member = *property;
- assert_se(v = hashmap_get(bus->vtable_properties, &key));
- assert(c == v->parent);
+ LIST_FOREACH(vtables, c, n->vtables) {
+ if (require_fallback && !c->is_fallback)
+ continue;
- if (!(v->vtable->flags & SD_BUS_VTABLE_PROPERTY_INVALIDATE_ONLY))
+ if (!streq(c->interface, interface))
continue;
- r = sd_bus_message_append(m, "s", *property);
+ r = node_vtable_get_userdata(bus, path, c, &u);
if (r < 0)
return r;
+ if (bus->nodes_modified)
+ return 0;
+ if (r == 0)
+ continue;
+
+ STRV_FOREACH(property, names) {
+ struct vtable_member *v;
+
+ key.member = *property;
+ assert_se(v = hashmap_get(bus->vtable_properties, &key));
+ assert(c == v->parent);
+
+ if (!(v->vtable->flags & SD_BUS_VTABLE_PROPERTY_INVALIDATE_ONLY))
+ continue;
+
+ r = sd_bus_message_append(m, "s", *property);
+ if (r < 0)
+ return r;
+ }
}
}
return 1;
}
-int sd_bus_emit_properties_changed_strv(
+_public_ int sd_bus_emit_properties_changed_strv(
sd_bus *bus,
const char *path,
const char *interface,
char **names) {
+ BUS_DONT_DESTROY(bus);
char *prefix;
int r;
if (strv_isempty(names))
return 0;
- r = emit_properties_changed_on_interface(bus, path, path, interface, false, names);
- if (r != 0)
- return r;
+ do {
+ bus->nodes_modified = false;
- prefix = alloca(strlen(path) + 1);
- OBJECT_PATH_FOREACH_PREFIX(prefix, path) {
- r = emit_properties_changed_on_interface(bus, prefix, path, interface, true, names);
+ r = emit_properties_changed_on_interface(bus, path, path, interface, false, names);
if (r != 0)
return r;
- }
+ if (bus->nodes_modified)
+ continue;
+
+ prefix = alloca(strlen(path) + 1);
+ OBJECT_PATH_FOREACH_PREFIX(prefix, path) {
+ r = emit_properties_changed_on_interface(bus, prefix, path, interface, true, names);
+ if (r != 0)
+ return r;
+ if (bus->nodes_modified)
+ break;
+ }
+
+ } while (bus->nodes_modified);
return -ENOENT;
}
-int sd_bus_emit_properties_changed(
+_public_ int sd_bus_emit_properties_changed(
sd_bus *bus,
const char *path,
const char *interface,
const char *name, ...) {
- _cleanup_strv_free_ char **names = NULL;
- va_list ap;
+ char **names;
assert_return(bus, -EINVAL);
assert_return(object_path_is_valid(path), -EINVAL);
if (!name)
return 0;
- va_start(ap, name);
- names = strv_new_ap(name, ap);
- va_end(ap);
-
- if (!names)
- return -ENOMEM;
+ names = strv_from_stdarg_alloca(name);
return sd_bus_emit_properties_changed_strv(bus, path, interface, names);
}
bool require_fallback) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ bool found_interface = false;
struct node_vtable *c;
struct node *n;
void *u = NULL;
if (require_fallback && !c->is_fallback)
continue;
- if (streq(c->interface, interface))
- break;
- }
-
- if (!c)
- return 0;
+ if (!streq(c->interface, interface))
+ continue;
- r = node_vtable_get_userdata(bus, path, c, &u);
- if (r <= 0)
- return r;
+ r = node_vtable_get_userdata(bus, path, c, &u);
+ if (r < 0)
+ return r;
+ if (bus->nodes_modified)
+ return 0;
+ if (r == 0)
+ continue;
- r = sd_bus_message_append_basic(m, 's', interface);
- if (r < 0)
- return r;
+ if (!found_interface) {
+ r = sd_bus_message_append_basic(m, 's', interface);
+ if (r < 0)
+ return r;
- r = sd_bus_message_open_container(m, 'a', "{sv}");
- if (r < 0)
- return r;
+ r = sd_bus_message_open_container(m, 'a', "{sv}");
+ if (r < 0)
+ return r;
- r = vtable_append_all_properties(bus, m,path, c, u, &error);
- if (r < 0)
- return r;
+ found_interface = true;
+ }
- if (sd_bus_error_is_set(&error))
- return bus_error_to_errno(&error);
+ r = vtable_append_all_properties(bus, m, path, c, u, &error);
+ if (r < 0)
+ return r;
+ if (bus->nodes_modified)
+ return 0;
+ }
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return r;
+ if (found_interface) {
+ r = sd_bus_message_close_container(m);
+ if (r < 0)
+ return r;
+ }
- return 1;
+ return found_interface;
}
static int interfaces_added_append_one(
r = interfaces_added_append_one_prefix(bus, m, path, path, interface, false);
if (r != 0)
return r;
+ if (bus->nodes_modified)
+ return 0;
prefix = alloca(strlen(path) + 1);
OBJECT_PATH_FOREACH_PREFIX(prefix, path) {
r = interfaces_added_append_one_prefix(bus, m, prefix, path, interface, true);
if (r != 0)
return r;
+ if (bus->nodes_modified)
+ return 0;
}
return -ENOENT;
}
-int sd_bus_emit_interfaces_added_strv(sd_bus *bus, const char *path, char **interfaces) {
+_public_ int sd_bus_emit_interfaces_added_strv(sd_bus *bus, const char *path, char **interfaces) {
+ BUS_DONT_DESTROY(bus);
+
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
char **i;
int r;
if (strv_isempty(interfaces))
return 0;
- r = sd_bus_message_new_signal(bus, path, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded", &m);
- if (r < 0)
- return r;
-
- r = sd_bus_message_append_basic(m, 'o', path);
- if (r < 0)
- return r;
+ do {
+ bus->nodes_modified = false;
- r = sd_bus_message_open_container(m, 'a', "{sa{sv}}");
- if (r < 0)
- return r;
+ if (m)
+ m = sd_bus_message_unref(m);
- STRV_FOREACH(i, interfaces) {
- assert_return(interface_name_is_valid(*i), -EINVAL);
+ r = sd_bus_message_new_signal(bus, path, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded", &m);
+ if (r < 0)
+ return r;
- r = sd_bus_message_open_container(m, 'e', "sa{sv}");
+ r = sd_bus_message_append_basic(m, 'o', path);
if (r < 0)
return r;
- r = interfaces_added_append_one(bus, m, path, *i);
+ r = sd_bus_message_open_container(m, 'a', "{sa{sv}}");
if (r < 0)
return r;
+ STRV_FOREACH(i, interfaces) {
+ assert_return(interface_name_is_valid(*i), -EINVAL);
+
+ r = sd_bus_message_open_container(m, 'e', "sa{sv}");
+ if (r < 0)
+ return r;
+
+ r = interfaces_added_append_one(bus, m, path, *i);
+ if (r < 0)
+ return r;
+
+ if (bus->nodes_modified)
+ break;
+
+ r = sd_bus_message_close_container(m);
+ if (r < 0)
+ return r;
+ }
+
+ if (bus->nodes_modified)
+ continue;
+
r = sd_bus_message_close_container(m);
if (r < 0)
return r;
- }
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return r;
+ } while (bus->nodes_modified);
return sd_bus_send(bus, m, NULL);
}
-int sd_bus_emit_interfaces_added(sd_bus *bus, const char *path, const char *interface, ...) {
- _cleanup_strv_free_ char **interfaces = NULL;
- va_list ap;
+_public_ int sd_bus_emit_interfaces_added(sd_bus *bus, const char *path, const char *interface, ...) {
+ char **interfaces;
assert_return(bus, -EINVAL);
assert_return(object_path_is_valid(path), -EINVAL);
assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
assert_return(!bus_pid_changed(bus), -ECHILD);
- va_start(ap, interface);
- interfaces = strv_new_ap(interface, ap);
- va_end(ap);
-
- if (!interfaces)
- return -ENOMEM;
+ interfaces = strv_from_stdarg_alloca(interface);
return sd_bus_emit_interfaces_added_strv(bus, path, interfaces);
}
-int sd_bus_emit_interfaces_removed_strv(sd_bus *bus, const char *path, char **interfaces) {
+_public_ int sd_bus_emit_interfaces_removed_strv(sd_bus *bus, const char *path, char **interfaces) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
int r;
return sd_bus_send(bus, m, NULL);
}
-int sd_bus_emit_interfaces_removed(sd_bus *bus, const char *path, const char *interface, ...) {
- _cleanup_strv_free_ char **interfaces = NULL;
- va_list ap;
+_public_ int sd_bus_emit_interfaces_removed(sd_bus *bus, const char *path, const char *interface, ...) {
+ char **interfaces;
assert_return(bus, -EINVAL);
assert_return(object_path_is_valid(path), -EINVAL);
assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
assert_return(!bus_pid_changed(bus), -ECHILD);
- va_start(ap, interface);
- interfaces = strv_new_ap(interface, ap);
- va_end(ap);
-
- if (!interfaces)
- return -ENOMEM;
+ interfaces = strv_from_stdarg_alloca(interface);
return sd_bus_emit_interfaces_removed_strv(bus, path, interfaces);
}
-int sd_bus_add_object_manager(sd_bus *bus, const char *path) {
+_public_ int sd_bus_add_object_manager(sd_bus *bus, const char *path) {
struct node *n;
assert_return(bus, -EINVAL);
return -ENOMEM;
n->object_manager = true;
+ bus->nodes_modified = true;
return 0;
}
-int sd_bus_remove_object_manager(sd_bus *bus, const char *path) {
+_public_ int sd_bus_remove_object_manager(sd_bus *bus, const char *path) {
struct node *n;
assert_return(bus, -EINVAL);
return 0;
n->object_manager = false;
+ bus->nodes_modified = true;
bus_node_gc(bus, n);
return 1;
~ianmdlvl / elogind.git / blobdiff