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https://github.com/checkpoint-restore/criu
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6b5b2996d4
This function works like printf, and it helps the compiler to know that, so it can check whether arguments fit the format string. Signed-off-by: Kir Kolyshkin <kir@openvz.org> Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
#ifndef COMPEL_LOG_H__
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#define COMPEL_LOG_H__
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#include "uapi/compel/compel.h"
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#include "uapi/compel/loglevels.h"
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#ifndef LOG_PREFIX
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# define LOG_PREFIX
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#endif
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static inline int pr_quelled(unsigned int loglevel)
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{
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return compel_log_get_loglevel() < loglevel
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&& loglevel != COMPEL_LOG_MSG;
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}
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extern void compel_print_on_level(unsigned int loglevel,
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const char *format, ...)
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__attribute__ ((__format__ (__printf__, 2, 3)));
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#define pr_msg(fmt, ...) \
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compel_print_on_level(COMPEL_LOG_MSG, \
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fmt, ##__VA_ARGS__)
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#define pr_info(fmt, ...) \
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compel_print_on_level(COMPEL_LOG_INFO, \
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LOG_PREFIX fmt, ##__VA_ARGS__)
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#define pr_err(fmt, ...) \
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compel_print_on_level(COMPEL_LOG_ERROR, \
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"Error (%s:%d): " LOG_PREFIX fmt, \
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__FILE__, __LINE__, ##__VA_ARGS__)
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#define pr_err_once(fmt, ...) \
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do { \
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static bool __printed; \
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if (!__printed) { \
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pr_err(fmt, ##__VA_ARGS__); \
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__printed = 1; \
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} \
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} while (0)
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#define pr_warn(fmt, ...) \
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compel_print_on_level(COMPEL_LOG_WARN, \
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"Warn (%s:%d): " LOG_PREFIX fmt, \
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__FILE__, __LINE__, ##__VA_ARGS__)
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#define pr_warn_once(fmt, ...) \
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do { \
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static bool __printed; \
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if (!__printed) { \
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pr_warn(fmt, ##__VA_ARGS__); \
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__printed = 1; \
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} \
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} while (0)
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#define pr_debug(fmt, ...) \
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compel_print_on_level(COMPEL_LOG_DEBUG, \
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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 /* COMPEL_LOG_H__ */
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