log.h

/*
 * MIT License
 *
 * Copyright (c) 2019 YangWuuu
 * https://github.com/YangWuuu
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef LOG_H
#define LOG_H

#define USE_LOG
#ifdef USE_LOG

#include <cstdio>
#include <ctime>
#include <mutex>
#include <cstdarg>

enum {
    LOG_TRACE, LOG_DEBUG, LOG_INFO, LOG_WARN, LOG_ERROR, LOG_FATAL
};

#ifdef LOG_USE_COLOR
static const char *level_colors[] = {
  "\x1b[94m", "\x1b[36m", "\x1b[32m", "\x1b[33m", "\x1b[31m", "\x1b[35m"
};
#endif

typedef void (*log_LockFn)(void *udata, int lock);

void log_set_udata(void *udata);
void log_set_lock(log_LockFn fn);
void log_set_fp(FILE *fp);
void log_set_level(int level);
void log_set_quiet(int enable);
void log_log(int level, const char *file, int line, const char *fmt, ...);

#define log_trace(...) log_log(LOG_TRACE, __FILE__, __LINE__, __VA_ARGS__)
#define log_debug(...) log_log(LOG_DEBUG, __FILE__, __LINE__, __VA_ARGS__)
#define log_info(...)  log_log(LOG_INFO,  __FILE__, __LINE__, __VA_ARGS__)
#define log_warn(...)  log_log(LOG_WARN,  __FILE__, __LINE__, __VA_ARGS__)
#define log_error(...) log_log(LOG_ERROR, __FILE__, __LINE__, __VA_ARGS__)
#define log_fatal(...) log_log(LOG_FATAL, __FILE__, __LINE__, __VA_ARGS__)

#else //use log
#define log_trace(...)
#define log_debug(...)
#define log_info(...)
#define log_warn(...)
#define log_error(...)
#define log_fatal(...)

#define log_set_fp(...)
#define log_set_quiet(...)
#endif //use log

#endif