* @param err the error code, if an error had occured
* @return one of cf_read_status_t
*/
-cf_read_status_t cf_continue_tail(capture_file *cf, volatile int to_read, int *err);
+cf_read_status_t cf_continue_tail(capture_file *cf, int to_read, int *err);
/**
* Fake reading packets from the "end" of a capture file.