In the real_..._async wrapper for GFile.measure_disk_usage, skip the
wrapping of the progress callback in the case that the user gave a NULL
callback to the async function. This is a performance improvement
because the sync version won't have to do continuous sampling of the
clock to issue a call to the wrapper which will then do nothing.
Unfortunately, I made this simplifying assumption when writing the
wrapper, but forgot to actually implement it when making the sync call.
As a result, the wrapper is still called, and invokes the NULL callback,
causing a segfault.
Make sure we pass NULL if the user's callback was NULL.
https://bugzilla.gnome.org/show_bug.cgi?id=707787
MeasureResult result;
if (g_file_measure_disk_usage (source_object, data->flags, cancellable,
- measure_disk_usage_progress, task,
+ data->progress_callback ? measure_disk_usage_progress : NULL, task,
&result.disk_usage, &result.num_dirs, &result.num_files,
&error))
g_task_return_pointer (task, g_memdup (&result, sizeof result), g_free);