* @param session The session the event source belongs to.
* @param key The key used to identify this source.
* @param fd The file descriptor or HANDLE.
+ * @param events Events.
* @param timeout_ms The timeout interval in ms, or -1 to wait indefinitely.
+ *
* @return A new event source object, or NULL on failure.
*/
static GSource *fd_source_new(struct sr_session *session, void *key,