Files
log.c/src/log.h
2021-02-14 17:52:08 +01:00

71 lines
2.0 KiB
C

/**
* Copyright (c) 2020 rxi
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MIT license. See `log.c` for details.
*/
#ifndef LOG_H
#define LOG_H
#include <stdio.h>
#include <stdarg.h>
#include <stdbool.h>
#include <time.h>
#define LOG_VERSION "0.1.0"
#ifndef RXI_LOGC_DEFAULT_LEVEL
# define RXI_LOGC_DEFAULT_LEVEL 0
#endif
#if defined __GNUC__
# define RXI_LOGC_PRINTF_ATTRIB(n, m) __attribute__((format(printf, n, m)))
#else
# define RXI_LOGC_PRINTF_ATTRIB(n, m)
#endif
typedef struct {
va_list ap;
const char *fmt;
const char *file;
struct tm *time;
void *udata;
int line;
int level;
} log_Event;
typedef void (*log_LogFn)(log_Event *ev);
typedef void (*log_LockFn)(bool lock, void *udata);
enum {
LOG_DEBUG = -10,
LOG_TRACE = 0,
LOG_INFO = 32,
LOG_WARN = 64,
LOG_ERROR = 96,
LOG_FATAL = 128,
};
#define log_debug(...) do { if (LOG_DEBUG >= RXI_LOGC_DEFAULT_LEVEL) log_log(LOG_DEBUG, __FILE__, __LINE__, __VA_ARGS__) } while(0)
#define log_trace(...) do { if (LOG_TRACE >= RXI_LOGC_DEFAULT_LEVEL) log_log(LOG_TRACE, __FILE__, __LINE__, __VA_ARGS__) } while(0)
#define log_info(...) do { if (LOG_INFO >= RXI_LOGC_DEFAULT_LEVEL) log_log(LOG_INFO, __FILE__, __LINE__, __VA_ARGS__) } while(0)
#define log_warn(...) do { if (LOG_WARN >= RXI_LOGC_DEFAULT_LEVEL) log_log(LOG_WARN, __FILE__, __LINE__, __VA_ARGS__) } while(0)
#define log_error(...) do { if (LOG_ERROR >= RXI_LOGC_DEFAULT_LEVEL) log_log(LOG_ERROR, __FILE__, __LINE__, __VA_ARGS__) } while(0)
#define log_fatal(...) do { if (LOG_FATAL >= RXI_LOGC_DEFAULT_LEVEL) log_log(LOG_FATAL, __FILE__, __LINE__, __VA_ARGS__) } while(0)
const char* log_level_string(int level);
void log_set_lock(log_LockFn fn, void *udata);
void log_set_level(int level);
void log_set_quiet(bool enable);
int log_add_callback(log_LogFn fn, void *udata, int level);
int log_add_fp(FILE *fp, int level);
void log_log(int level, const char *file, int line, const char *fmt, ...) RXI_LOGC_PRINTF_ATTRIB(4, 5);
#endif