summaryrefslogtreecommitdiff
path: root/src/libudev/log.h
blob: fab0100b6a7b81c670529a1a7ee5a35310d10506 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

#pragma once

/***
  This file is part of systemd.

  Copyright 2010 Lennart Poettering

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.

  systemd is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#include <syslog.h>
#include <stdbool.h>
#include <stdarg.h>
#include <errno.h>

#include "macro.h"

typedef enum LogTarget{
        LOG_TARGET_CONSOLE,
        LOG_TARGET_KMSG,
        LOG_TARGET_JOURNAL,
        LOG_TARGET_JOURNAL_OR_KMSG,
        LOG_TARGET_SYSLOG,
        LOG_TARGET_SYSLOG_OR_KMSG,
        LOG_TARGET_AUTO, /* console if stderr is tty, JOURNAL_OR_KMSG otherwise */
        LOG_TARGET_SAFE, /* console if stderr is tty, KMSG otherwise */
        LOG_TARGET_NULL,
        _LOG_TARGET_MAX,
        _LOG_TARGET_INVALID = -1
}  LogTarget;

void log_set_target(LogTarget target);
void log_set_max_level(int level);

int log_open(void);
void log_close(void);

void log_close_syslog(void);
void log_close_journal(void);
void log_close_kmsg(void);
void log_close_console(void);

int log_meta(
                int level,
                const char*file,
                int line,
                const char *func,
                const char *format, ...) _printf_attr_(5,6);

int log_metav(
                int level,
                const char*file,
                int line,
                const char *func,
                const char *format,
                va_list ap) _printf_attr_(5,0);

int log_oom_internal(
                const char *file,
                int line,
                const char *func);

/* This modifies the buffer passed! */
int log_dump_internal(
                int level,
                const char*file,
                int line,
                const char *func,
                char *buffer);

_noreturn_ void log_assert_failed(
                const char *text,
                const char *file,
                int line,
                const char *func);

_noreturn_ void log_assert_failed_unreachable(
                const char *text,
                const char *file,
                int line,
                const char *func);

#define log_full(level, ...) log_meta(level,   __FILE__, __LINE__, __func__, __VA_ARGS__)

#define log_debug(...)   log_meta(LOG_DEBUG,   __FILE__, __LINE__, __func__, __VA_ARGS__)
#define log_info(...)    log_meta(LOG_INFO,    __FILE__, __LINE__, __func__, __VA_ARGS__)
#define log_notice(...)  log_meta(LOG_NOTICE,  __FILE__, __LINE__, __func__, __VA_ARGS__)
#define log_warning(...) log_meta(LOG_WARNING, __FILE__, __LINE__, __func__, __VA_ARGS__)
#define log_error(...)   log_meta(LOG_ERR,     __FILE__, __LINE__, __func__, __VA_ARGS__)

#define log_oom() log_oom_internal(__FILE__, __LINE__, __func__)

/* This modifies the buffer passed! */
#define log_dump(level, buffer) log_dump_internal(level, __FILE__, __LINE__, __func__, buffer)

const char *log_target_to_string(LogTarget target) _const_;
LogTarget log_target_from_string(const char *s) _pure_;

#define MESSAGE_ID(x) "MESSAGE_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(x)