signals:
void lastSeenSet(BufferId buffer, const QDateTime &time);
void setLastSeenRequested(BufferId buffer, const QDateTime &time);
void removeBufferRequested(BufferId buffer);
void bufferRemoved(BufferId buffer);
signals:
void lastSeenSet(BufferId buffer, const QDateTime &time);
void setLastSeenRequested(BufferId buffer, const QDateTime &time);
void removeBufferRequested(BufferId buffer);
void bufferRemoved(BufferId buffer);