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      1 /* $NetBSD: fuse_internal.h,v 1.5 2022/01/22 08:09:39 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_INTERNAL_H)
     32 #define FUSE_INTERNAL_H
     33 
     34 /* We emit a compiler warning for anyone including <fuse.h> without
     35  * defining FUSE_USE_VERSION. Exempt ourselves here, or we'll be
     36  * warned too. */
     37 #define _REFUSE_IMPLEMENTATION_
     38 
     39 #include <fuse.h>
     40 #include <fuse_lowlevel.h>
     41 #include <sys/cdefs.h>
     42 
     43 #ifdef __cplusplus
     44 extern "C" {
     45 #endif
     46 
     47 /* This is the private fuse structure. We can freely change its size
     48  * and/or layout without worrying about ABI breakage. */
     49 struct fuse {
     50 	struct puffs_usermount	*pu;
     51 	int			dead;
     52 	struct fuse_fs		*fs; /* The base filesystem layer. */
     53 };
     54 
     55 enum refuse_show_help_variant {
     56 	REFUSE_SHOW_HELP_FULL		= 1,
     57 	REFUSE_SHOW_HELP_NO_HEADER	= 2,
     58 };
     59 
     60 /* Internal functions, hidden from users */
     61 __BEGIN_HIDDEN_DECLS
     62 int __fuse_set_signal_handlers(struct fuse* fuse);
     63 int __fuse_remove_signal_handlers(struct fuse* fuse);
     64 struct fuse* __fuse_setup(int argc, char* argv[],
     65                           const void* op, int op_version, void* user_data,
     66                           struct fuse_cmdline_opts* opts);
     67 void __fuse_teardown(struct fuse* fuse);
     68 
     69 /* Generic implementation of fuse_new(). The exact type of "op" is
     70  * determined by op_version. */
     71 struct fuse* __fuse_new(struct fuse_args *args, const void* op,
     72                         int op_version, void* user_data);
     73 
     74 int __fuse_mount(struct fuse *fuse, const char *mountpoint);
     75 void __fuse_unmount(struct fuse *fuse);
     76 void __fuse_destroy(struct fuse *fuse);
     77 int __fuse_loop_mt(struct fuse *fuse, struct fuse_loop_config *config);
     78 int __fuse_parse_cmdline(struct fuse_args *args, struct fuse_cmdline_opts *opts);
     79 __END_HIDDEN_DECLS
     80 
     81 #ifdef __cplusplus
     82 }
     83 #endif
     84 
     85 #endif
     86