xref: /aosp_15_r20/external/libfuse/lib/fuse_log.c (revision 9e5649576b786774a32d7b0252c9cd8c6538fa49)
1*9e564957SAndroid Build Coastguard Worker /*
2*9e564957SAndroid Build Coastguard Worker   FUSE: Filesystem in Userspace
3*9e564957SAndroid Build Coastguard Worker   Copyright (C) 2019  Red Hat, Inc.
4*9e564957SAndroid Build Coastguard Worker 
5*9e564957SAndroid Build Coastguard Worker   Logging API.
6*9e564957SAndroid Build Coastguard Worker 
7*9e564957SAndroid Build Coastguard Worker   This program can be distributed under the terms of the GNU LGPLv2.
8*9e564957SAndroid Build Coastguard Worker   See the file COPYING.LIB
9*9e564957SAndroid Build Coastguard Worker */
10*9e564957SAndroid Build Coastguard Worker 
11*9e564957SAndroid Build Coastguard Worker #include "fuse_log.h"
12*9e564957SAndroid Build Coastguard Worker 
13*9e564957SAndroid Build Coastguard Worker #include <stdarg.h>
14*9e564957SAndroid Build Coastguard Worker #include <stdio.h>
15*9e564957SAndroid Build Coastguard Worker 
default_log_func(enum fuse_log_level level,const char * fmt,va_list ap)16*9e564957SAndroid Build Coastguard Worker static void default_log_func(
17*9e564957SAndroid Build Coastguard Worker 		__attribute__(( unused )) enum fuse_log_level level,
18*9e564957SAndroid Build Coastguard Worker 		const char *fmt, va_list ap)
19*9e564957SAndroid Build Coastguard Worker {
20*9e564957SAndroid Build Coastguard Worker 	vfprintf(stderr, fmt, ap);
21*9e564957SAndroid Build Coastguard Worker }
22*9e564957SAndroid Build Coastguard Worker 
23*9e564957SAndroid Build Coastguard Worker static fuse_log_func_t log_func = default_log_func;
24*9e564957SAndroid Build Coastguard Worker 
fuse_set_log_func(fuse_log_func_t func)25*9e564957SAndroid Build Coastguard Worker void fuse_set_log_func(fuse_log_func_t func)
26*9e564957SAndroid Build Coastguard Worker {
27*9e564957SAndroid Build Coastguard Worker 	if (!func)
28*9e564957SAndroid Build Coastguard Worker 		func = default_log_func;
29*9e564957SAndroid Build Coastguard Worker 
30*9e564957SAndroid Build Coastguard Worker 	log_func = func;
31*9e564957SAndroid Build Coastguard Worker }
32*9e564957SAndroid Build Coastguard Worker 
fuse_log(enum fuse_log_level level,const char * fmt,...)33*9e564957SAndroid Build Coastguard Worker void fuse_log(enum fuse_log_level level, const char *fmt, ...)
34*9e564957SAndroid Build Coastguard Worker {
35*9e564957SAndroid Build Coastguard Worker 	va_list ap;
36*9e564957SAndroid Build Coastguard Worker 
37*9e564957SAndroid Build Coastguard Worker 	va_start(ap, fmt);
38*9e564957SAndroid Build Coastguard Worker 	log_func(level, fmt, ap);
39*9e564957SAndroid Build Coastguard Worker 	va_end(ap);
40*9e564957SAndroid Build Coastguard Worker }
41