criu/include/log.h
Andrey Vagin fc7bedc50a crtools: make to be able to split messages by pid
If the option --log-pid is set, each process will have an own log file.
Otherwise PID is added to each log message.

A message can't be bigger than one page minus some bytes for pid.

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2012-05-04 16:22:04 +04:00

39 lines
1.2 KiB
C

#ifndef LOG_H__
#define LOG_H__
extern int log_init(const char *output);
extern void log_fini(void);
extern int log_init_by_pid(void);
extern int log_get_fd(void);
extern void log_set_loglevel(unsigned int loglevel);
extern void print_on_level(unsigned int loglevel, const char *format, ...)
__attribute__ ((__format__ (__printf__, 2, 3)));
#define LOG_MSG (0) /* Print message regardless of log level */
#define LOG_ERROR (1) /* Errors only, when we're in trouble */
#define LOG_WARN (2) /* Warnings, dazen and confused but trying to continue */
#define LOG_INFO (3) /* Informative, everything is fine */
#define LOG_DEBUG (4) /* Debug only */
#define pr_msg(fmt, ...) \
print_on_level(LOG_MSG, fmt, ##__VA_ARGS__)
#define pr_info(fmt, ...) \
print_on_level(LOG_INFO, fmt, ##__VA_ARGS__)
#define pr_err(fmt, ...) \
print_on_level(LOG_ERROR, "Error (%s:%d): " fmt, __FILE__, __LINE__, ##__VA_ARGS__)
#define pr_warn(fmt, ...) \
print_on_level(LOG_WARN, "Warn (%s:%d): " fmt, __FILE__, __LINE__, ##__VA_ARGS__)
#define pr_debug(fmt, ...) \
print_on_level(LOG_DEBUG, fmt, ##__VA_ARGS__)
#define pr_perror(fmt, ...) \
pr_err(fmt ": %m\n", ##__VA_ARGS__)
#endif /* LOG_H__ */