Method
RBExtDBrequest
Declaration [src]
gboolean
rb_ext_db_request (
RBExtDB* store,
RBExtDBKey* key,
RBExtDBRequestCallback callback,
gpointer user_data,
GDestroyNotify destroy
)
Description [src]
Requests a metadata item. If the item is cached, the callback will be called synchronously. Otherwise, metadata providers will provide results asynchronously.
Parameters
key-
Type:
RBExtDBKeyMetadata lookup key.
The data is owned by the caller of the method. callback-
Type:
RBExtDBRequestCallbackCallback to call with results.
user_data-
Type:
gpointerUser data to pass to the callback.
The argument can be NULL.The data is owned by the caller of the method. destroy-
Type:
GDestroyNotifyDestroy function for
user_data.