Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
[qemu.git] / tools / virtiofsd / fuse_log.c
1 /*
2 * FUSE: Filesystem in Userspace
3 * Copyright (C) 2019 Red Hat, Inc.
4 *
5 * Logging API.
6 *
7 * This program can be distributed under the terms of the GNU LGPLv2.
8 * See the file COPYING.LIB
9 */
10
11 #include "qemu/osdep.h"
12 #include "fuse_log.h"
13
14
15 static void default_log_func(__attribute__((unused)) enum fuse_log_level level,
16 const char *fmt, va_list ap)
17 {
18 vfprintf(stderr, fmt, ap);
19 }
20
21 static fuse_log_func_t log_func = default_log_func;
22
23 void fuse_set_log_func(fuse_log_func_t func)
24 {
25 if (!func) {
26 func = default_log_func;
27 }
28
29 log_func = func;
30 }
31
32 void fuse_log(enum fuse_log_level level, const char *fmt, ...)
33 {
34 va_list ap;
35
36 va_start(ap, fmt);
37 log_func(level, fmt, ap);
38 va_end(ap);
39 }