log.h

/*
 SPDX-License-Identifier: GPL-3.0-or-later
 myMPD (c) 2018-2025 Juergen Mang <mail@jcgames.de>
 https://github.com/jcorporation/mympd
*/
 
#ifndef MYMPD_LOG_H
#define MYMPD_LOG_H
 
#include "dist/sds/sds.h"
 
#include <stdbool.h>
#include <syslog.h>
 
enum log_types {
    LOG_TO_SYSLOG,
    LOG_TO_TTY,
    LOG_TO_SYSTEMD,
    LOG_TO_STDOUT
};
 
#ifdef MYMPD_DEBUG
    #define MYMPD_LOG_EMERG(...) mympd_log(LOG_EMERG, __FILE__, __LINE__, __VA_ARGS__)
    #define MYMPD_LOG_ALERT(...) mympd_log(LOG_ALERT, __FILE__, __LINE__, __VA_ARGS__)
    #define MYMPD_LOG_CRIT(...) mympd_log(LOG_CRIT, __FILE__, __LINE__, __VA_ARGS__)
    #define MYMPD_LOG_ERROR(...) mympd_log(LOG_ERR, __FILE__, __LINE__, __VA_ARGS__)
    #define MYMPD_LOG_WARN(...) mympd_log(LOG_WARNING,  __FILE__, __LINE__, __VA_ARGS__)
    #define MYMPD_LOG_NOTICE(...) mympd_log(LOG_NOTICE, __FILE__, __LINE__, __VA_ARGS__)
    #define MYMPD_LOG_INFO(...) mympd_log(LOG_INFO, __FILE__, __LINE__, __VA_ARGS__)
    #define MYMPD_LOG_DEBUG(...) mympd_log(LOG_DEBUG, __FILE__, __LINE__, __VA_ARGS__)
    #define MYMPD_LOG_ERRNO(PART, ERRNUM) mympd_log_errno(__FILE__, __LINE__, PART, ERRNUM)
#else
    #define MYMPD_LOG_EMERG(...) mympd_log(LOG_EMERG, "", __LINE__, __VA_ARGS__)
    #define MYMPD_LOG_ALERT(...) mympd_log(LOG_ALERT, "", __LINE__, __VA_ARGS__)
    #define MYMPD_LOG_CRIT(...) mympd_log(LOG_CRIT, "", __LINE__, __VA_ARGS__)
    #define MYMPD_LOG_ERROR(...) mympd_log(LOG_ERR, "", __LINE__, __VA_ARGS__)
    #define MYMPD_LOG_WARN(...) mympd_log(LOG_WARNING, "", __LINE__, __VA_ARGS__)
    #define MYMPD_LOG_NOTICE(...) mympd_log(LOG_NOTICE, "", __LINE__, __VA_ARGS__)
    #define MYMPD_LOG_INFO(...) mympd_log(LOG_INFO, "", __LINE__, __VA_ARGS__)
    #define MYMPD_LOG_DEBUG(...) mympd_log(LOG_DEBUG, "", __LINE__, __VA_ARGS__)
    #define MYMPD_LOG_ERRNO(PART, ERRNUM) mympd_log_errno("", __LINE__, PART, ERRNUM)
#endif
 
extern _Atomic int loglevel;
extern enum log_types log_type;
 
_Thread_local extern sds thread_logname;
_Thread_local extern sds thread_logline;
 
const char *get_loglevel_name(int level);
void set_loglevel(int level);
void log_init(void);
 
void mympd_log_errno(const char *file, int line, const char *partition, int errnum);
void mympd_log(int level, const char *file, int line, const char *partition, const char *fmt, ...)
    __attribute__ ((format (printf, 5, 6)));
 
#endif