Finishes an asynchronous file read operation started with g_file_open_readwrite_async(). Since 2.22
a GAsyncResult.
a GFileIOStream or NULL on error. Free the returned object with g_object_unref(). [transfer full]
GException on failure.
See Implementation
Finishes an asynchronous file read operation started with g_file_open_readwrite_async(). Since 2.22