static void BackgroundSyncChecker()
{
lastBackgroundCheck = DateTime.Now;
currentAutosyncTimeoutMinutes = autosyncTimeoutPrefMinutes;
if (syncThread != null)
{
return;
}
var addin = GetConfiguredSyncService();
if (addin != null)
{
// TODO: block sync while checking
SyncServer server = null;
try {
server = addin.CreateSyncServer();
if (server == null)
{
throw new Exception("addin.CreateSyncServer () returned null");
}
} catch (Exception e) {
Logger.Debug("BackgroundSyncChecker: Exception while creating SyncServer: {0}\n{1}", e.Message, e.StackTrace);
addin.PostSyncCleanup(); // TODO: Needed?
return;
// TODO: Figure out a clever way to get the specific error up to the GUI
}
bool serverHasUpdates = false;
bool clientHasUpdates = client.DeletedNoteTitles.Count > 0;
if (!clientHasUpdates)
{
foreach (Note note in new List <Note> (NoteMgr.Notes))
{
if (client.GetRevision(note) == -1 ||
note.MetadataChangeDate > client.LastSyncDate)
{
clientHasUpdates = true;
break;
}
}
}
// NOTE: Important to check, at least to verify
// that server is available
try {
Logger.Debug("BackgroundSyncChecker: Checking server for updates");
serverHasUpdates = server.UpdatesAvailableSince(client.LastSynchronizedRevision);
} catch {
// TODO: A libnotify bubble might be nice
Logger.Debug("BackgroundSyncChecker: Error connecting to server");
addin.PostSyncCleanup();
return;
}
addin.PostSyncCleanup(); // Let FUSE unmount, etc
if (clientHasUpdates || serverHasUpdates)
{
Logger.Debug("BackgroundSyncChecker: Detected that sync would be a good idea now");
// TODO: Check that it's safe to sync, block other sync UIs
PerformSynchronization(new SilentUI(NoteMgr));
}
}
}
