along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <syslog.h>
#include <stdbool.h>
#include <stdarg.h>
+#include <stdlib.h>
+#include <syslog.h>
+#include <sys/signalfd.h>
#include <errno.h>
-#include "macro.h"
#include "sd-id128.h"
+#include "macro.h"
typedef enum LogTarget{
LOG_TARGET_CONSOLE,
+ LOG_TARGET_CONSOLE_PREFIXED,
LOG_TARGET_KMSG,
LOG_TARGET_JOURNAL,
LOG_TARGET_JOURNAL_OR_KMSG,
int log_set_max_level_from_string(const char *e);
void log_show_color(bool b);
+bool log_get_show_color(void) _pure_;
void log_show_location(bool b);
+bool log_get_show_location(void) _pure_;
int log_show_color_from_string(const char *e);
int log_show_location_from_string(const char *e);
-LogTarget log_get_target(void);
-int log_get_max_level(void);
+LogTarget log_get_target(void) _pure_;
+int log_get_max_level(void) _pure_;
int log_open(void);
void log_close(void);
void log_parse_environment(void);
-int log_meta(
+int log_internal(
int level,
- const char*file,
+ int error,
+ const char *file,
+ int line,
+ const char *func,
+ const char *format, ...) _printf_(6,7);
+
+int log_internalv(
+ int level,
+ int error,
+ const char *file,
int line,
const char *func,
- const char *format, ...) _printf_attr_(5,6);
+ const char *format,
+ va_list ap) _printf_(6,0);
-int log_metav(
+int log_object_internal(
int level,
+ int error,
+ const char *file,
+ int line,
+ const char *func,
+ const char *object_field,
+ const char *object,
+ const char *format, ...) _printf_(8,9);
+
+int log_object_internalv(
+ int level,
+ int error,
const char*file,
int line,
const char *func,
+ const char *object_field,
+ const char *object,
const char *format,
- va_list ap);
+ va_list ap) _printf_(8,0);
int log_struct_internal(
int level,
+ int error,
const char *file,
int line,
const char *func,
- const char *format, ...) _sentinel_;
+ const char *format, ...) _printf_(6,0) _sentinel_;
int log_oom_internal(
const char *file,
/* This modifies the buffer passed! */
int log_dump_internal(
int level,
- const char*file,
+ int error,
+ const char *file,
int line,
const char *func,
char *buffer);
-_noreturn_ void log_assert_failed(
+/* Logging for various assertions */
+noreturn void log_assert_failed(
const char *text,
const char *file,
int line,
const char *func);
-_noreturn_ void log_assert_failed_unreachable(
+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__)
+void log_assert_failed_return(
+ const char *text,
+ const char *file,
+ int line,
+ const char *func);
-#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__)
+/* Logging with level */
+#define log_full_errno(level, error, ...) \
+ ({ \
+ int _level = (level), _e = (error); \
+ (log_get_max_level() >= LOG_PRI(_level)) \
+ ? log_internal(_level, _e, __FILE__, __LINE__, __func__, __VA_ARGS__) \
+ : -abs(_e); \
+ })
+
+#define log_full(level, ...) log_full_errno(level, 0, __VA_ARGS__)
+
+/* Normal logging */
+#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_emergency(...) log_full(getpid() == 1 ? LOG_EMERG : LOG_ERR, __VA_ARGS__)
+
+/* Logging triggered by an errno-like error */
+#define log_debug_errno(error, ...) log_full_errno(LOG_DEBUG, error, __VA_ARGS__)
+#define log_info_errno(error, ...) log_full_errno(LOG_INFO, error, __VA_ARGS__)
+#define log_notice_errno(error, ...) log_full_errno(LOG_NOTICE, error, __VA_ARGS__)
+#define log_warning_errno(error, ...) log_full_errno(LOG_WARNING, error, __VA_ARGS__)
+#define log_error_errno(error, ...) log_full_errno(LOG_ERR, error, __VA_ARGS__)
+#define log_emergency_errno(error, ...) log_full_errno(getpid() == 1 ? LOG_EMERG : LOG_ERR, error, __VA_ARGS__)
+
+#ifdef LOG_TRACE
+# define log_trace(...) log_debug(__VA_ARGS__)
+#else
+# define log_trace(...) do {} while(0)
+#endif
+
+/* Structured logging */
+#define log_struct(level, ...) log_struct_internal(level, 0, __FILE__, __LINE__, __func__, __VA_ARGS__)
+#define log_struct_errno(level, error, ...) log_struct_internal(level, error, __FILE__, __LINE__, __func__, __VA_ARGS__)
-#define log_struct(level, ...) log_struct_internal(level, __FILE__, __LINE__, __func__, __VA_ARGS__)
+/* This modifies the buffer passed! */
+#define log_dump(level, buffer) log_dump_internal(level, 0, __FILE__, __LINE__, __func__, buffer)
#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)
+bool log_on_console(void) _pure_;
+
+const char *log_target_to_string(LogTarget target) _const_;
+LogTarget log_target_from_string(const char *s) _pure_;
-bool log_on_console(void);
+/* Helpers to prepare various fields for structured logging */
+#define LOG_MESSAGE(fmt, ...) "MESSAGE=" fmt, ##__VA_ARGS__
+#define LOG_MESSAGE_ID(x) "MESSAGE_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(x)
+#define LOG_ERRNO(error) "ERRNO=%i", abs(error)
-const char *log_target_to_string(LogTarget target);
-LogTarget log_target_from_string(const char *s);
+void log_received_signal(int level, const struct signalfd_siginfo *si);
-#define MESSAGE_ID(x) "MESSAGE_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(x)
+void log_set_upgrade_syslog_to_journal(bool b);
+
+int log_syntax_internal(
+ const char *unit,
+ int level,
+ const char *config_file,
+ unsigned config_line,
+ int error,
+ const char *file,
+ int line,
+ const char *func,
+ const char *format, ...) _printf_(9, 10);
+
+#define log_syntax(unit, level, config_file, config_line, error, ...) \
+ ({ \
+ int _level = (level), _e = (error); \
+ (log_get_max_level() >= LOG_PRI(_level)) \
+ ? log_syntax_internal(unit, _level, config_file, config_line, _e, __FILE__, __LINE__, __func__, __VA_ARGS__) \
+ : -abs(_e); \
+ })
~ianmdlvl / elogind.git / blobdiff