-extern int __must_check td_io_init(struct thread_data *);
-extern int __must_check td_io_prep(struct thread_data *, struct io_u *);
-extern int __must_check td_io_queue(struct thread_data *, struct io_u *);
-extern int __must_check td_io_sync(struct thread_data *, struct fio_file *);
-extern int __must_check td_io_getevents(struct thread_data *, int, int, struct timespec *);
-extern int __must_check td_io_commit(struct thread_data *);
-extern int __must_check td_io_open_file(struct thread_data *, struct fio_file *);
-extern void td_io_close_file(struct thread_data *, struct fio_file *);
-
-/*
- * If logging output to a file, stderr should go to both stderr and f_err
- */
-#define log_err(args...) do { \
- fprintf(f_err, ##args); \
- if (f_err != stderr) \
- fprintf(stderr, ##args); \
- } while (0)
-
-FILE *get_f_out(void);
-FILE *get_f_err(void);
-
-struct ioengine_ops {
- struct list_head list;
- char name[16];
- int version;
- int flags;
- int (*setup)(struct thread_data *);
- int (*init)(struct thread_data *);
- int (*prep)(struct thread_data *, struct io_u *);
- int (*queue)(struct thread_data *, struct io_u *);
- int (*commit)(struct thread_data *);
- int (*getevents)(struct thread_data *, int, int, struct timespec *);
- struct io_u *(*event)(struct thread_data *, int);
- int (*cancel)(struct thread_data *, struct io_u *);
- void (*cleanup)(struct thread_data *);
- int (*open_file)(struct thread_data *, struct fio_file *);
- void (*close_file)(struct thread_data *, struct fio_file *);
- void *data;
- void *dlhandle;
-};
-
-#define FIO_IOOPS_VERSION 6
-
-extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *);
-extern void register_ioengine(struct ioengine_ops *);
-extern void unregister_ioengine(struct ioengine_ops *);
-extern void close_ioengine(struct thread_data *);