1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 This file is part of systemd.
8 Copyright 2010 Lennart Poettering
10 systemd is free software; you can redistribute it and/or modify it
11 under the terms of the GNU Lesser General Public License as published by
12 the Free Software Foundation; either version 2.1 of the License, or
13 (at your option) any later version.
15 systemd is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with systemd; If not, see <http://www.gnu.org/licenses/>.
27 #include <sys/signalfd.h>
28 #include <sys/types.h>
35 typedef enum LogTarget{
39 LOG_TARGET_JOURNAL_OR_KMSG,
41 LOG_TARGET_SYSLOG_OR_KMSG,
42 LOG_TARGET_AUTO, /* console if stderr is tty, JOURNAL_OR_KMSG otherwise */
43 LOG_TARGET_SAFE, /* console if stderr is tty, KMSG otherwise */
46 _LOG_TARGET_INVALID = -1
49 void log_set_target(LogTarget target);
50 void log_set_max_level(int level);
51 void log_set_facility(int facility);
53 int log_set_target_from_string(const char *e);
54 int log_set_max_level_from_string(const char *e);
56 void log_show_color(bool b);
57 bool log_get_show_color(void) _pure_;
58 void log_show_location(bool b);
59 bool log_get_show_location(void) _pure_;
61 int log_show_color_from_string(const char *e);
62 int log_show_location_from_string(const char *e);
64 LogTarget log_get_target(void) _pure_;
65 int log_get_max_level(void) _pure_;
69 void log_forget_fds(void);
71 void log_close_syslog(void);
72 void log_close_journal(void);
73 void log_close_kmsg(void);
74 void log_close_console(void);
76 void log_parse_environment(void);
83 const char *format, ...) _printf_(5,6);
91 va_list ap) _printf_(5,0);
98 const char *object_name,
100 const char *format, ...) _printf_(7,8);
102 int log_metav_object(
107 const char *object_name,
110 va_list ap) _printf_(7,0);
112 int log_struct_internal(
117 const char *format, ...) _printf_(5,0) _sentinel_;
119 int log_oom_internal(
124 /* This modifies the buffer passed! */
125 int log_dump_internal(
132 noreturn void log_assert_failed(
138 noreturn void log_assert_failed_unreachable(
144 void log_assert_failed_return(
150 #define log_full(level, ...) \
152 if (log_get_max_level() >= (level)) \
153 log_meta((level), __FILE__, __LINE__, __func__, __VA_ARGS__); \
156 #define log_debug(...) log_full(LOG_DEBUG, __VA_ARGS__)
157 #define log_info(...) log_full(LOG_INFO, __VA_ARGS__)
158 #define log_notice(...) log_full(LOG_NOTICE, __VA_ARGS__)
159 #define log_warning(...) log_full(LOG_WARNING, __VA_ARGS__)
160 #define log_error(...) log_full(LOG_ERR, __VA_ARGS__)
161 #define log_emergency(...) log_full(getpid() == 1 ? LOG_EMERG : LOG_ERR, __VA_ARGS__)
164 # define log_trace(...) log_debug(__VA_ARGS__)
166 # define log_trace(...) do {} while(0)
169 #define log_struct(level, ...) log_struct_internal(level, __FILE__, __LINE__, __func__, __VA_ARGS__)
171 #define log_oom() log_oom_internal(__FILE__, __LINE__, __func__)
173 /* This modifies the buffer passed! */
174 #define log_dump(level, buffer) log_dump_internal(level, __FILE__, __LINE__, __func__, buffer)
176 bool log_on_console(void) _pure_;
178 const char *log_target_to_string(LogTarget target) _const_;
179 LogTarget log_target_from_string(const char *s) _pure_;
181 #define MESSAGE_ID(x) "MESSAGE_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(x)
183 void log_received_signal(int level, const struct signalfd_siginfo *si);
185 void log_set_upgrade_syslog_to_journal(bool b);