typedef void (*client_disk_util_op_func)(struct fio_client *client, struct fio_net_cmd *cmd);
typedef void (*client_thread_status_op)(struct fio_net_cmd *cmd);
typedef void (*client_group_stats_op)(struct fio_net_cmd *cmd);
typedef void (*client_disk_util_op_func)(struct fio_client *client, struct fio_net_cmd *cmd);
typedef void (*client_thread_status_op)(struct fio_net_cmd *cmd);
typedef void (*client_group_stats_op)(struct fio_net_cmd *cmd);