This would be useful for the sftp backend with the recently added push and pull support.

Created attachment 263452 [details] [review]
daemon: Rate limit progress callbacks

To prevent flooding the dbus daemon with messages, rate limit the
progress callbacks to 10 per second (i.e. every 100 milliseconds).

Created attachment 263453 [details] [review]
ftp: Remove custom progress callback rate limiting

Created attachment 263551 [details] [review]
ftp: Remove custom progress callback rate limiting

The updated patch removes two now-unused functions.

Review of attachment 263452 [details] [review]:

Looks good, just a note...

::: daemon/gvfsjobprogress.c
@@ +78,3 @@
+  gint64 current_time = g_get_monotonic_time ();
+
+  if (current_time - job->priv->last_time < 100000 &&

Would be nice to define new macro with this rate time at the top of the file.

Review of attachment 263551 [details] [review]:

Looks good, thanks.

Pushed to master as 44b66a90..cf884c04. Thanks for the review!