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d08905bf89
This function prints an error message only once.
[xemul: change ({}) to do {} while (0)]
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
#ifndef LOG_H__
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#define LOG_H__
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#include "log-levels.h"
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extern int log_init(const char *output);
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extern void log_fini(void);
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extern int log_init_by_pid(void);
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extern void log_closedir(void);
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extern void log_set_fd(int fd);
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extern int log_get_fd(void);
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extern void log_set_loglevel(unsigned int loglevel);
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extern unsigned int log_get_loglevel(void);
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extern int vprint_num(char *buf, int blen, int num, char **ps);
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extern void print_on_level(unsigned int loglevel, const char *format, ...)
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__attribute__ ((__format__ (__printf__, 2, 3)));
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#ifndef LOG_PREFIX
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# define LOG_PREFIX
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#endif
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#define pr_msg(fmt, ...) \
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print_on_level(LOG_MSG, fmt, ##__VA_ARGS__)
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#define pr_info(fmt, ...) \
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print_on_level(LOG_INFO, LOG_PREFIX fmt, ##__VA_ARGS__)
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#define pr_err_once(fmt, ...) do { \
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static bool __printed; \
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if (!__printed) { \
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print_on_level(LOG_ERROR, "Error (%s:%d): " LOG_PREFIX fmt, __FILE__, __LINE__, ##__VA_ARGS__); \
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__printed = 1; \
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} \
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} while (0)
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#define pr_err(fmt, ...) \
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print_on_level(LOG_ERROR, "Error (%s:%d): " LOG_PREFIX fmt, __FILE__, __LINE__, ##__VA_ARGS__)
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#define pr_warn(fmt, ...) \
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print_on_level(LOG_WARN, "Warn (%s:%d): " LOG_PREFIX fmt, __FILE__, __LINE__, ##__VA_ARGS__)
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#define pr_debug(fmt, ...) \
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print_on_level(LOG_DEBUG, LOG_PREFIX fmt, ##__VA_ARGS__)
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#define pr_perror(fmt, ...) \
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pr_err(fmt ": %m\n", ##__VA_ARGS__)
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#endif /* LOG_H__ */
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