passt/log.h
Stefano Brivio 8c2f24a560 conf, log: Instead of abusing log levels, add log_conf_parsed flag
We currently use a LOG_EMERG log mask to represent the fact that we
don't know yet what the mask resulting from configuration should be,
before the command line is parsed.

However, we have the necessity of representing another phase as well,
that is, configuration is parsed but we didn't daemonise yet, or
we're not ready for operation yet. The next patch will add that
notion explicitly.

Mapping these cases to further log levels isn't really practical.
Introduce boolean log flags to represent them, instead of abusing
log priorities.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
2024-06-21 15:32:31 +02:00

47 lines
1.3 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)));
#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 die(...) \
do { \
err(__VA_ARGS__); \
exit(EXIT_FAILURE); \
} while (0)
extern int log_trace;
extern bool log_conf_parsed;
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 */