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Diffstat (limited to 'src/shared/log.h')
-rw-r--r-- | src/shared/log.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/src/shared/log.h b/src/shared/log.h new file mode 100644 index 0000000000..1b2a67a030 --- /dev/null +++ b/src/shared/log.h @@ -0,0 +1,107 @@ +/*-*- 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 <stdbool.h> +#include <stdarg.h> +#include <syslog.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_get_max_level(void) _pure_; + +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_(5,6); + +int log_metav( + int level, + const char*file, + int line, + const char *func, + const char *format, + va_list ap) _printf_(5,0); + +int log_oom_internal( + const char *file, + int line, + const char *func); + +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, ...) \ +do { \ + if (log_get_max_level() >= (level)) \ + log_meta((level), __FILE__, __LINE__, __func__, __VA_ARGS__); \ +} while (0) + +#define log_debug(...) log_full(LOG_DEBUG, __VA_ARGS__) +#define log_info(...) log_full(LOG_INFO, __VA_ARGS__) +#define log_notice(...) log_full(LOG_NOTICE, __VA_ARGS__) +#define log_warning(...) log_full(LOG_WARNING, __VA_ARGS__) +#define log_error(...) log_full(LOG_ERR, __VA_ARGS__) + +#define log_struct(level, ...) log_struct_internal(level, __FILE__, __LINE__, __func__, __VA_ARGS__) + +#define log_oom() log_oom_internal(__FILE__, __LINE__, __func__) + +const char *log_target_to_string(LogTarget target) _const_; +LogTarget log_target_from_string(const char *s) _pure_; |