70 struct IWFS_EXT;
113   off_t nsize, off_t csize, struct IWFS_EXT *f,
123   struct IWFS_EXT *f, void **ctx);
132   struct IWFS_EXT *f, void **ctx);
164 typedef struct IWFS_EXT {  struct
184   iwrc (*ensure_size)(struct IWFS_EXT *f, off_t off);  argument
189   iwrc (*truncate)(struct IWFS_EXT *f, off_t off);  argument
191   iwrc (*truncate_unsafe)(struct IWFS_EXT *f, off_t off);  argument
219   iwrc (*add_mmap)(struct IWFS_EXT *f, off_t off, size_t len, iwfs_ext_mmap_opts_t opts);  argument
221   iwrc (*add_mmap_unsafe)(struct IWFS_EXT *f, off_t off, size_t len, iwfs_ext_mmap_opts_t opts);  argument
240   iwrc (*acquire_mmap)(struct IWFS_EXT *f, off_t off, uint8_t **mm, size_t *sp);  argument
245   iwrc (*probe_mmap)(struct IWFS_EXT *f, off_t off, uint8_t **mm, size_t *sp);  argument
247   iwrc (*probe_mmap_unsafe)(struct IWFS_EXT *f, off_t off, uint8_t **mm, size_t *sp);  argument
252   iwrc (*release_mmap)(struct IWFS_EXT *f);  argument
264   iwrc (*remove_mmap)(struct IWFS_EXT *f, off_t off);  argument
266   iwrc (*remove_mmap_unsafe)(struct IWFS_EXT *f, off_t off);  argument
279   iwrc (*sync_mmap)(struct IWFS_EXT *f, off_t off, iwfs_sync_flags flags);  argument
281   iwrc (*sync_mmap_unsafe)(struct IWFS_EXT *f, off_t off, iwfs_sync_flags flags);  argument
288   iwrc (*remap_all)(struct IWFS_EXT *f);  argument
294     struct IWFS_EXT *f, off_t off, const void *buf, size_t siz,  argument
299     struct IWFS_EXT *f, off_t off, void *buf, size_t siz,  argument
303   iwrc (*close)(struct IWFS_EXT *f);  argument
306   iwrc (*sync)(struct IWFS_EXT *f, iwfs_sync_flags flags);  argument
309   iwrc (*state)(struct IWFS_EXT *f, IWFS_EXT_STATE *state);  argument
312   iwrc (*copy)(struct IWFS_EXT *f, off_t off, size_t siz, off_t noff);  argument
313 } IWFS_EXT;  typedef
347 IW_EXPORT WUR iwrc iwfs_exfile_open(IWFS_EXT *f, const IWFS_EXT_OPTS *opts);