return FALSE;
}
-/* For speed it might be useful to sort this in order of
- * frequency of use (but doesn't matter with only a few items
- * anyhow)
- */
-static struct
+typedef struct
{
const char *name;
const char *in_args;
BusTransaction *transaction,
DBusMessage *message,
DBusError *error);
-} message_handlers[] = {
+} MessageHandler;
+
+/* For speed it might be useful to sort this in order of
+ * frequency of use (but doesn't matter with only a few items
+ * anyhow)
+ */
+static const MessageHandler dbus_message_handlers[] = {
{ "Hello",
"",
DBUS_TYPE_STRING_AS_STRING,
{ "GetId",
"",
DBUS_TYPE_STRING_AS_STRING,
- bus_driver_handle_get_id }
+ bus_driver_handle_get_id },
+ { NULL, NULL, NULL, NULL }
+};
+
+static dbus_bool_t bus_driver_handle_introspect (DBusConnection *,
+ BusTransaction *, DBusMessage *, DBusError *);
+
+static const MessageHandler introspectable_message_handlers[] = {
+ { "Introspect", "", DBUS_TYPE_STRING_AS_STRING, bus_driver_handle_introspect },
+ { NULL, NULL, NULL, NULL }
+};
+
+typedef struct {
+ const char *name;
+ const MessageHandler *message_handlers;
+ const char *extra_introspection;
+} InterfaceHandler;
+
+/* These should ideally be sorted by frequency of use, although it
+ * probably doesn't matter with this few items */
+static InterfaceHandler interface_handlers[] = {
+ { DBUS_INTERFACE_DBUS, dbus_message_handlers,
+ " <signal name=\"NameOwnerChanged\">\n"
+ " <arg type=\"s\"/>\n"
+ " <arg type=\"s\"/>\n"
+ " <arg type=\"s\"/>\n"
+ " </signal>\n"
+ " <signal name=\"NameLost\">\n"
+ " <arg type=\"s\"/>\n"
+ " </signal>\n"
+ " <signal name=\"NameAcquired\">\n"
+ " <arg type=\"s\"/>\n"
+ " </signal>\n" },
+ { DBUS_INTERFACE_INTROSPECTABLE, introspectable_message_handlers, NULL },
+ { NULL, NULL, NULL }
};
static dbus_bool_t
dbus_bool_t
bus_driver_generate_introspect_string (DBusString *xml)
{
- int i;
+ const InterfaceHandler *ih;
+ const MessageHandler *mh;
if (!_dbus_string_append (xml, DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE))
return FALSE;
if (!_dbus_string_append (xml, "<node>\n"))
return FALSE;
- if (!_dbus_string_append_printf (xml, " <interface name=\"%s\">\n", DBUS_INTERFACE_INTROSPECTABLE))
- return FALSE;
- if (!_dbus_string_append (xml, " <method name=\"Introspect\">\n"))
- return FALSE;
- if (!_dbus_string_append_printf (xml, " <arg name=\"data\" direction=\"out\" type=\"%s\"/>\n", DBUS_TYPE_STRING_AS_STRING))
- return FALSE;
- if (!_dbus_string_append (xml, " </method>\n"))
- return FALSE;
- if (!_dbus_string_append (xml, " </interface>\n"))
- return FALSE;
-
- if (!_dbus_string_append_printf (xml, " <interface name=\"%s\">\n",
- DBUS_INTERFACE_DBUS))
- return FALSE;
- i = 0;
- while (i < _DBUS_N_ELEMENTS (message_handlers))
+ for (ih = interface_handlers; ih->name != NULL; ih++)
{
-
- if (!_dbus_string_append_printf (xml, " <method name=\"%s\">\n",
- message_handlers[i].name))
+ if (!_dbus_string_append_printf (xml, " <interface name=\"%s\">\n",
+ ih->name))
return FALSE;
- if (!write_args_for_direction (xml, message_handlers[i].in_args, TRUE))
- return FALSE;
-
- if (!write_args_for_direction (xml, message_handlers[i].out_args, FALSE))
- return FALSE;
-
- if (!_dbus_string_append (xml, " </method>\n"))
- return FALSE;
-
- ++i;
- }
-
- if (!_dbus_string_append_printf (xml, " <signal name=\"NameOwnerChanged\">\n"))
- return FALSE;
-
- if (!_dbus_string_append_printf (xml, " <arg type=\"s\"/>\n"))
- return FALSE;
-
- if (!_dbus_string_append_printf (xml, " <arg type=\"s\"/>\n"))
- return FALSE;
-
- if (!_dbus_string_append_printf (xml, " <arg type=\"s\"/>\n"))
- return FALSE;
-
- if (!_dbus_string_append_printf (xml, " </signal>\n"))
- return FALSE;
-
-
-
- if (!_dbus_string_append_printf (xml, " <signal name=\"NameLost\">\n"))
- return FALSE;
-
- if (!_dbus_string_append_printf (xml, " <arg type=\"s\"/>\n"))
- return FALSE;
-
- if (!_dbus_string_append_printf (xml, " </signal>\n"))
- return FALSE;
-
+ for (mh = ih->message_handlers; mh->name != NULL; mh++)
+ {
+ if (!_dbus_string_append_printf (xml, " <method name=\"%s\">\n",
+ mh->name))
+ return FALSE;
+ if (!write_args_for_direction (xml, mh->in_args, TRUE))
+ return FALSE;
- if (!_dbus_string_append_printf (xml, " <signal name=\"NameAcquired\">\n"))
- return FALSE;
+ if (!write_args_for_direction (xml, mh->out_args, FALSE))
+ return FALSE;
- if (!_dbus_string_append_printf (xml, " <arg type=\"s\"/>\n"))
- return FALSE;
+ if (!_dbus_string_append (xml, " </method>\n"))
+ return FALSE;
+ }
- if (!_dbus_string_append_printf (xml, " </signal>\n"))
- return FALSE;
+ if (ih->extra_introspection != NULL &&
+ !_dbus_string_append (xml, ih->extra_introspection))
+ return FALSE;
- if (!_dbus_string_append (xml, " </interface>\n"))
- return FALSE;
+ if (!_dbus_string_append (xml, " </interface>\n"))
+ return FALSE;
+ }
if (!_dbus_string_append (xml, "</node>\n"))
return FALSE;
DBusError *error)
{
const char *name, *sender, *interface;
- int i;
+ const InterfaceHandler *ih;
+ const MessageHandler *mh;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
return TRUE; /* we just ignore this */
}
- if (dbus_message_is_method_call (message,
- DBUS_INTERFACE_INTROSPECTABLE,
- "Introspect"))
- return bus_driver_handle_introspect (connection, transaction, message, error);
-
+ /* may be NULL, which means "any interface will do" */
interface = dbus_message_get_interface (message);
- if (interface == NULL)
- interface = DBUS_INTERFACE_DBUS;
_dbus_assert (dbus_message_get_member (message) != NULL);
name = dbus_message_get_member (message);
sender = dbus_message_get_sender (message);
- if (strcmp (interface,
- DBUS_INTERFACE_DBUS) != 0)
- {
- _dbus_verbose ("Driver got message to unknown interface \"%s\"\n",
- interface);
- goto unknown;
- }
-
_dbus_verbose ("Driver got a method call: %s\n",
dbus_message_get_member (message));
/* security checks should have kept this from getting here */
_dbus_assert (sender != NULL || strcmp (name, "Hello") == 0);
- i = 0;
- while (i < _DBUS_N_ELEMENTS (message_handlers))
+ for (ih = interface_handlers; ih->name != NULL; ih++)
{
- if (strcmp (message_handlers[i].name, name) == 0)
+ if (interface != NULL && strcmp (interface, ih->name) != 0)
+ continue;
+
+ for (mh = ih->message_handlers; mh->name != NULL; mh++)
{
+ if (strcmp (mh->name, name) != 0)
+ continue;
+
_dbus_verbose ("Found driver handler for %s\n", name);
- if (!dbus_message_has_signature (message, message_handlers[i].in_args))
+ if (!dbus_message_has_signature (message, mh->in_args))
{
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
_dbus_verbose ("Call to %s has wrong args (%s, expected %s)\n",
name, dbus_message_get_signature (message),
- message_handlers[i].in_args);
+ mh->in_args);
dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
"Call to %s has wrong args (%s, expected %s)\n",
name, dbus_message_get_signature (message),
- message_handlers[i].in_args);
+ mh->in_args);
_DBUS_ASSERT_ERROR_IS_SET (error);
return FALSE;
}
- if ((* message_handlers[i].handler) (connection, transaction, message, error))
+ if ((* mh->handler) (connection, transaction, message, error))
{
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
_dbus_verbose ("Driver handler succeeded\n");
return FALSE;
}
}
-
- ++i;
}
unknown:
{
DBusString str;
DBusString other;
- int i, end;
+ int i, a, end;
long v;
double d;
int lens[] = { 0, 1, 2, 3, 4, 5, 10, 16, 17, 18, 25, 31, 32, 33, 34, 35, 63, 64, 65, 66, 67, 68, 69, 70, 71, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136 };
_dbus_assert (_dbus_string_get_length (&other) == i * 2 - 1);
_dbus_assert (_dbus_string_equal_c_str (&other,
"HelloHello WorldWorle"));
-
+
_dbus_string_free (&str);
_dbus_string_free (&other);
+
+ /* Different tests are provided because different behaviours are
+ * implemented in _dbus_string_replace_len() in function of replacing and
+ * replaced lengths
+ */
+
+ if (!_dbus_string_init (&str))
+ _dbus_assert_not_reached ("failed to init string");
+ if (!_dbus_string_append (&str, "Hello World"))
+ _dbus_assert_not_reached ("could not append to string");
+
+ i = _dbus_string_get_length (&str);
+
+ if (!_dbus_string_init (&other))
+ _dbus_assert_not_reached ("could not init string");
+
+ if (!_dbus_string_append (&other, "Foo String"))
+ _dbus_assert_not_reached ("could not append to string");
+
+ a = _dbus_string_get_length (&other);
+
+ if (!_dbus_string_replace_len (&str, 0, 6,
+ &other, 4, 0))
+ _dbus_assert_not_reached ("could not replace 0 length");
+
+ _dbus_assert (_dbus_string_get_length (&str) == i);
+ _dbus_assert (_dbus_string_get_length (&other) == a + 6);
+ _dbus_assert (_dbus_string_equal_c_str (&other,
+ "Foo Hello String"));
+
+ if (!_dbus_string_replace_len (&str, 5, 6,
+ &other,
+ _dbus_string_get_length (&other),
+ 0))
+ _dbus_assert_not_reached ("could not replace at the end");
+
+ _dbus_assert (_dbus_string_get_length (&str) == i);
+ _dbus_assert (_dbus_string_get_length (&other) == a + 6 + 6);
+ _dbus_assert (_dbus_string_equal_c_str (&other,
+ "Foo Hello String World"));
+
+ if (!_dbus_string_replace_len (&str, 0, 5,
+ &other,
+ _dbus_string_get_length (&other) - 5,
+ 5))
+ _dbus_assert_not_reached ("could not replace same length");
+
+ _dbus_assert (_dbus_string_get_length (&str) == i);
+ _dbus_assert (_dbus_string_get_length (&other) == a + 6 + 6);
+ _dbus_assert (_dbus_string_equal_c_str (&other,
+ "Foo Hello String Hello"));
+
+ if (!_dbus_string_replace_len (&str, 6, 5,
+ &other, 4, 12))
+ _dbus_assert_not_reached ("could not replace with shorter string");
+
+ _dbus_assert (_dbus_string_get_length (&str) == i);
+ _dbus_assert (_dbus_string_get_length (&other) == a + 5);
+ _dbus_assert (_dbus_string_equal_c_str (&other,
+ "Foo World Hello"));
+
+ if (!_dbus_string_replace_len (&str, 0, 1,
+ &other, 0, 3))
+ _dbus_assert_not_reached ("could not replace at the beginning");
+
+ _dbus_assert (_dbus_string_get_length (&str) == i);
+ _dbus_assert (_dbus_string_get_length (&other) == a + 3);
+ _dbus_assert (_dbus_string_equal_c_str (&other,
+ "H World Hello"));
+
+ if (!_dbus_string_replace_len (&str, 6, 5,
+ &other,
+ _dbus_string_get_length (&other) - 5,
+ 5))
+ _dbus_assert_not_reached ("could not replace same length");
+
+ _dbus_assert (_dbus_string_get_length (&str) == i);
+ _dbus_assert (_dbus_string_get_length (&other) == a + 3);
+ _dbus_assert (_dbus_string_equal_c_str (&other,
+ "H World World"));
+
+ _dbus_string_free (&str);
+ _dbus_string_free (&other);
+
/* Check append/get unichar */
if (!_dbus_string_init (&str))
/**
* Replaces a segment of dest string with a segment of source string.
*
- * @todo optimize the case where the two lengths are the same, and
- * avoid memmoving the data in the trailing part of the string twice.
- *
- * @todo avoid inserting the source into dest, then deleting
- * the replaced chunk of dest (which creates a potentially large
- * intermediate string). Instead, extend the replaced chunk
- * of dest with padding to the same size as the source chunk,
- * then copy in the source bytes.
- *
* @param source the source string
* @param start where to start copying the source string
* @param len length of segment to copy
_dbus_assert (replace_at <= real_dest->len);
_dbus_assert (replace_len <= real_dest->len - replace_at);
- if (!copy (real_source, start, len,
- real_dest, replace_at))
- return FALSE;
+ if (len == replace_len)
+ {
+ memmove (real_dest->str + replace_at,
+ real_source->str + start, len);
+ }
+ else if (len < replace_len)
+ {
+ memmove (real_dest->str + replace_at,
+ real_source->str + start, len);
+ delete (real_dest, replace_at + len,
+ replace_len - len);
+ }
+ else
+ {
+ int diff;
- delete (real_dest, replace_at + len, replace_len);
+ _dbus_assert (len > replace_len);
+
+ diff = len - replace_len;
+
+ /* First of all we check if destination string can be enlarged as
+ * required, then we overwrite previous bytes
+ */
+
+ if (!copy (real_source, start + replace_len, diff,
+ real_dest, replace_at + replace_len))
+ return FALSE;
+
+ memmove (real_dest->str + replace_at,
+ real_source->str + start, replace_len);
+ }
return TRUE;
}
projects / platform / upstream / dbus.git / commitdiff