197 typedef struct IWFS_FSM {  struct
217   iwrc(*allocate)(struct IWFS_FSM *f, off_t len, off_t *oaddr, off_t *olen,  argument
236   iwrc(*reallocate)(struct IWFS_FSM *f, off_t nlen, off_t *oaddr, off_t *olen,  argument
246   iwrc(*deallocate)(struct IWFS_FSM *f, off_t addr, off_t len);  argument
253   iwrc(*check_allocation_status)(struct IWFS_FSM *f, off_t addr, off_t len, bool allocated);  argument
266   iwrc(*writehdr)(struct IWFS_FSM *f, off_t off, const void *buf, off_t siz);  argument
278   iwrc(*readhdr)(struct IWFS_FSM *f, off_t off, void *buf, off_t siz);  argument
287   iwrc(*clear)(struct IWFS_FSM *f, iwfs_fsm_clrfalgs clrflags);  argument
292   iwrc(*ensure_size)(struct IWFS_FSM *f, off_t size);  argument
296   iwrc(*add_mmap)(struct IWFS_FSM *f, off_t off, size_t maxlen, iwfs_ext_mmap_opts_t opts);  argument
300   iwrc(*remap_all)(struct IWFS_FSM *f);  argument
312   iwrc(*acquire_mmap)(struct IWFS_FSM *f, off_t off, uint8_t **mm, size_t *sp);  argument
317   iwrc(*probe_mmap)(struct IWFS_FSM *f, off_t off, uint8_t **mm, size_t *sp);  argument
322   iwrc(*release_mmap)(struct IWFS_FSM *f);  argument
325   iwrc(*remove_mmap)(struct IWFS_FSM *f, off_t off);  argument
328   iwrc(*sync_mmap)(struct IWFS_FSM *f, off_t off, iwfs_sync_flags flags);  argument
333   iwrc(*write)(struct IWFS_FSM *f, off_t off, const void *buf, size_t siz,  argument
337   iwrc(*read)(struct IWFS_FSM *f, off_t off, void *buf, size_t siz,  argument
341   iwrc(*close)(struct IWFS_FSM *f);  argument
344   iwrc(*sync)(struct IWFS_FSM *f, iwfs_sync_flags flags);  argument
347   iwrc(*state)(struct IWFS_FSM *f, IWFS_FSM_STATE *state);  argument
350   iwrc(*extfile)(struct IWFS_FSM *f, IWFS_EXT **ext);  argument
352 } IWFS_FSM;  typedef
401 IW_EXPORT WUR iwrc iwfs_fsmfile_open(IWFS_FSM *f, const IWFS_FSM_OPTS *opts);