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passt/log.h
Stefano Brivio c1140df889 log: Add _perror() logging function variants
In many places, we have direct perror() calls, which completely bypass
logging functions and log files.

They are definitely convenient: offer similar convenience with
_perror() logging variants, so that we can drop those direct perror()
calls.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
2024-06-21 15:32:40 +02:00

62 lines
1.8 KiB
C

/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright (c) 2022 Red Hat GmbH
* Author: Stefano Brivio <sbrivio@redhat.com>
*/
#ifndef LOG_H
#define LOG_H
#include <stdbool.h>
#include <syslog.h>
#define LOGFILE_SIZE_DEFAULT (1024 * 1024UL)
#define LOGFILE_CUT_RATIO 30 /* When full, cut ~30% size */
#define LOGFILE_SIZE_MIN (5UL * MAX(BUFSIZ, PAGE_SIZE))
void vlogmsg(int pri, const char *format, va_list ap);
void logmsg(int pri, const char *format, ...)
__attribute__((format(printf, 2, 3)));
void logmsg_perror(int pri, const char *format, ...)
__attribute__((format(printf, 2, 3)));
#define err(...) logmsg( LOG_ERR, __VA_ARGS__)
#define warn(...) logmsg( LOG_WARNING, __VA_ARGS__)
#define info(...) logmsg( LOG_INFO, __VA_ARGS__)
#define debug(...) logmsg( LOG_DEBUG, __VA_ARGS__)
#define err_perror(...) logmsg_perror( LOG_ERR, __VA_ARGS__)
#define warn_perror(...) logmsg_perror( LOG_WARNING, __VA_ARGS__)
#define info_perror(...) logmsg_perror( LOG_INFO, __VA_ARGS__)
#define debug_perror(...) logmsg_perror( LOG_DEBUG, __VA_ARGS__)
#define die(...) \
do { \
err(__VA_ARGS__); \
exit(EXIT_FAILURE); \
} while (0)
#define die_perror(...) \
do { \
err_perror(__VA_ARGS__); \
exit(EXIT_FAILURE); \
} while (0)
extern int log_trace;
extern bool log_conf_parsed;
extern bool log_runtime;
void trace_init(int enable);
#define trace(...) \
do { \
if (log_trace) \
debug(__VA_ARGS__); \
} while (0)
void __openlog(const char *ident, int option, int facility);
void logfile_init(const char *name, const char *path, size_t size);
void passt_vsyslog(int pri, const char *format, va_list ap);
void logfile_write(int pri, const char *format, va_list ap);
void __setlogmask(int mask);
#endif /* LOG_H */