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      1 /* $NetBSD: legacy.h,v 1.1 2022/01/22 07:57:30 pho Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2021 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote
     16  *    products derived from this software without specific prior written
     17  *    permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
     20  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
     23  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
     25  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     27  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     28  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 #if !defined(_FUSE_LEGACY_H_)
     32 #define _FUSE_LEGACY_H_
     33 
     34 #include <sys/fstypes.h>
     35 
     36 /* Legacy data types and functions that had once existed but have been
     37  * removed from the FUSE API. */
     38 
     39 #if !defined(FUSE_H_)
     40 #  error Do not include this header directly. Include <fuse.h> instead.
     41 #endif
     42 
     43 #ifdef __cplusplus
     44 extern "C" {
     45 #endif
     46 
     47 /* statfs structure used by FUSE < 1.9. On 2.1 it's been replaced with
     48  * "struct statfs" and later replaced again with struct statvfs on
     49  * 2.5. */
     50 struct fuse_statfs {
     51 	long block_size;
     52 	long blocks;
     53 	long blocks_free;
     54 	long files;
     55 	long files_free;
     56 	long namelen;
     57 };
     58 
     59 /* Linux-specific struct statfs; used by FUSE >= 2.1 && < 2.5. */
     60 struct statfs {
     61 	long		f_type;
     62 	long		f_bsize;
     63 	fsblkcnt_t	f_blocks;
     64 	fsblkcnt_t	f_bfree;
     65 	fsblkcnt_t	f_bavail;
     66 	fsfilcnt_t	f_files;
     67 	fsfilcnt_t	f_ffree;
     68 	fsid_t		f_fsid;
     69 	long		f_namelen;
     70 	long		f_frsize;
     71 	long		f_flags;
     72 };
     73 
     74 /* Handle for a getdir() operation. Removed as of FUSE 3.0. */
     75 typedef void *fuse_dirh_t;
     76 
     77 /* Enable debugging output. Removed on FUSE 3.0. */
     78 #define FUSE_DEBUG	(1 << 1)
     79 
     80 /* Invalidate cached data of a file. Added on FUSE 1.9 and removed on
     81  * FUSE 3.0. Not to be confused with fuse_invalidate_path() appeared
     82  * on FUSE 3.2. */
     83 int fuse_invalidate(struct fuse *f, const char *path);
     84 
     85 /* Check whether a mount option should be passed to the kernel or the
     86  * library. Added on FUSE 1.9 and removed on FUSE 3.0. */
     87 int fuse_is_lib_option(const char *opt);
     88 
     89 #ifdef __cplusplus
     90 }
     91 #endif
     92 
     93 #endif
     94