/* $NetBSD: v26.h,v 1.1 2022/01/22 08:09:40 pho Exp $ */

/*
 * Copyright (c) 2021 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote
 *    products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#if !defined(_FUSE_V26_H_)
#define _FUSE_V26_H_

/* Compatibility header with FUSE 2.6 API. Only declarations that have
 * differences between versions should be listed here. */

#if !defined(FUSE_H_)
#  error Do not include this header directly. Include <fuse.h> instead.
#endif

#ifdef __cplusplus
extern "C" {
#endif

/* The table of file system operations in FUSE >= 2.6 && < 2.8. */
struct fuse_operations_v26 {
        int     (*getattr)              (const char *, struct stat *);
        int     (*readlink)             (const char *, char *, size_t);
        int     (*getdir)               (const char *, fuse_dirh_t, fuse_dirfil_t_v22);
        int     (*mknod)                (const char *, mode_t, dev_t);
        int     (*mkdir)                (const char *, mode_t);
        int     (*unlink)               (const char *);
        int     (*rmdir)                (const char *);
        int     (*symlink)              (const char *, const char *);
        int     (*rename)               (const char *, const char *);
        int     (*link)                 (const char *, const char *);
        int     (*chmod)                (const char *, mode_t);
        int     (*chown)                (const char *, uid_t, gid_t);
        int     (*truncate)             (const char *, off_t);
        int     (*utime)                (const char *, struct utimbuf *);
        int     (*open)                 (const char *, struct fuse_file_info *);
        int     (*read)                 (const char *, char *, size_t, off_t, struct fuse_file_info *);
        int     (*write)                (const char *, const char *, size_t, off_t, struct fuse_file_info *);
        int     (*statfs)               (const char *, struct statvfs *);
        int     (*flush)                (const char *, struct fuse_file_info *);
        int     (*release)              (const char *, struct fuse_file_info *);
        int     (*fsync)                (const char *, int, struct fuse_file_info *);
        int     (*setxattr)             (const char *, const char *, const char *, size_t, int);
        int     (*getxattr)             (const char *, const char *, char *, size_t);
        int     (*listxattr)    (const char *, char *, size_t);
        int     (*removexattr)  (const char *, const char *);
        int     (*opendir)              (const char *, struct fuse_file_info *);
        int     (*readdir)              (const char *, void *, fuse_fill_dir_t_v23, off_t, struct fuse_file_info *);
        int     (*releasedir)   (const char *, struct fuse_file_info *);
        int     (*fsyncdir)             (const char *, int, struct fuse_file_info *);
        void    *(*init)        (struct fuse_conn_info *);
        void    (*destroy)      (void *);
        int     (*access)               (const char *, int);
        int     (*create)               (const char *, mode_t, struct fuse_file_info *);
        int     (*ftruncate)    (const char *, off_t, struct fuse_file_info *);
        int     (*fgetattr)             (const char *, struct stat *, struct fuse_file_info *);
        int     (*lock)                 (const char *, struct fuse_file_info *, int, struct flock *);
        int     (*utimens)              (const char *, const struct timespec[2]);
        int     (*bmap)                 (const char *, size_t , uint64_t *);
};

/* Mount a FUSE >= 2.6 && < 3.0 filesystem. */
struct fuse_chan *fuse_mount_v26(const char *mountpoint, struct fuse_args *args);

/* Unmount a FUSE >= 2.6 && < 3.0 filesystem. */
void fuse_unmount_v26(const char *mountpoint, struct fuse_chan *ch);

/* Create a FUSE >= 2.6 && < 3.0 filesystem. */
struct fuse *fuse_new_v26(struct fuse_chan *ch, struct fuse_args *args,
                                                  const void *op, int op_version,
                                                  void *user_data);

/* The part of fuse_main() before the event loop. */
struct fuse *fuse_setup_v26(int argc, char *argv[],
                                                        const void *op, int op_version,
                                                        char **mountpoint, int *multithreaded,
                                                        void *user_data);

/* The part of fuse_main() after the event loop. */
void fuse_teardown_v26(struct fuse *fuse, char *mountpoint);

#ifdef __cplusplus
}
#endif

#endif