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      1 /* $NetBSD: fuse_log.h,v 1.1 2022/01/22 07:39:22 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_LOG_H_)
     32 #define _FUSE_LOG_H_
     33 
     34 /* FUSE logging API, appeared on FUSE 3.7. */
     35 
     36 #include <stdarg.h>
     37 #include <sys/cdefs.h>
     38 
     39 #ifdef __cplusplus
     40 extern "C" {
     41 #endif
     42 
     43 enum fuse_log_level {
     44 	FUSE_LOG_EMERG,
     45 	FUSE_LOG_ALERT,
     46 	FUSE_LOG_CRIT,
     47 	FUSE_LOG_ERR,
     48 	FUSE_LOG_WARNING,
     49 	FUSE_LOG_NOTICE,
     50 	FUSE_LOG_INFO,
     51 	FUSE_LOG_DEBUG
     52 };
     53 
     54 typedef void (*fuse_log_func_t)(enum fuse_log_level level, const char *fmt, va_list ap);
     55 
     56 void fuse_set_log_func(fuse_log_func_t func);
     57 void fuse_log(enum fuse_log_level level, const char *fmt, ...) __printflike(2, 3);
     58 
     59 #ifdef __cplusplus
     60 }
     61 #endif
     62 
     63 #endif
     64