/* * nxdt_log.h * * Copyright (c) 2020-2023, DarkMatterCore . * * This file is part of nxdumptool (https://github.com/DarkMatterCore/nxdumptool). * * nxdumptool is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * nxdumptool is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #ifndef __NXDT_LOG_H__ #define __NXDT_LOG_H__ #ifdef __cplusplus extern "C" { #endif /// Used to control logfile verbosity. #define LOG_LEVEL_DEBUG 0 #define LOG_LEVEL_INFO 1 #define LOG_LEVEL_WARNING 2 #define LOG_LEVEL_ERROR 3 #define LOG_LEVEL_NONE 4 /// Defines the log level used throughout the application. /// Log messages with a log value lower than this one won't be compiled into the binary. /// If a value lower than LOG_LEVEL_DEBUG or equal to/greater than LOG_LEVEL_NONE is used, logfile output will be entirely disabled. #define LOG_LEVEL LOG_LEVEL_DEBUG /* TODO: change before release (warning?). */ #if (LOG_LEVEL >= LOG_LEVEL_DEBUG) && (LOG_LEVEL < LOG_LEVEL_NONE) /// Helper macros. #define LOG_MSG_GENERIC(level, fmt, ...) logWriteFormattedStringToLogFile(level, __FILE__, __LINE__, __func__, fmt, ##__VA_ARGS__) #define LOG_MSG_BUF_GENERIC(dst, dst_size, level, fmt, ...) logWriteFormattedStringToBuffer(dst, dst_size, level, __FILE__, __LINE__, __func__, fmt, ##__VA_ARGS__) #define LOG_DATA_GENERIC(data, data_size, level, fmt, ...) logWriteBinaryDataToLogFile(data, data_size, level, __FILE__, __LINE__, __func__, fmt, ##__VA_ARGS__) #if LOG_LEVEL == LOG_LEVEL_DEBUG #define LOG_MSG_DEBUG(fmt, ...) LOG_MSG_GENERIC(LOG_LEVEL_DEBUG, fmt, ##__VA_ARGS__) #define LOG_MSG_BUF_DEBUG(dst, dst_size, fmt, ...) LOG_MSG_BUF_GENERIC(dst, dst_size, LOG_LEVEL_DEBUG, fmt, ##__VA_ARGS__) #define LOG_DATA_DEBUG(data, data_size, fmt, ...) LOG_DATA_GENERIC(data, data_size, LOG_LEVEL_DEBUG, fmt, ##__VA_ARGS__) #else #define LOG_MSG_DEBUG(fmt, ...) do {} while(0) #define LOG_MSG_BUF_DEBUG(dst, dst_size, fmt, ...) do {} while(0) #define LOG_DATA_DEBUG(data, data_size, fmt, ...) do {} while(0) #endif /* LOG_LEVEL == LOG_LEVEL_DEBUG */ #if LOG_LEVEL <= LOG_LEVEL_INFO #define LOG_MSG_INFO(fmt, ...) LOG_MSG_GENERIC(LOG_LEVEL_INFO, fmt, ##__VA_ARGS__) #define LOG_MSG_BUF_INFO(dst, dst_size, fmt, ...) LOG_MSG_BUF_GENERIC(dst, dst_size, LOG_LEVEL_INFO, fmt, ##__VA_ARGS__) #define LOG_DATA_INFO(data, data_size, fmt, ...) LOG_DATA_GENERIC(data, data_size, LOG_LEVEL_INFO, fmt, ##__VA_ARGS__) #else #define LOG_MSG_INFO(fmt, ...) do {} while(0) #define LOG_MSG_BUF_INFO(dst, dst_size, fmt, ...) do {} while(0) #define LOG_DATA_INFO(data, data_size, fmt, ...) do {} while(0) #endif /* LOG_LEVEL <= LOG_LEVEL_INFO */ #if LOG_LEVEL <= LOG_LEVEL_WARNING #define LOG_MSG_WARNING(fmt, ...) LOG_MSG_GENERIC(LOG_LEVEL_WARNING, fmt, ##__VA_ARGS__) #define LOG_MSG_BUF_WARNING(dst, dst_size, fmt, ...) LOG_MSG_BUF_GENERIC(dst, dst_size, LOG_LEVEL_WARNING, fmt, ##__VA_ARGS__) #define LOG_DATA_WARNING(data, data_size, fmt, ...) LOG_DATA_GENERIC(data, data_size, LOG_LEVEL_WARNING, fmt, ##__VA_ARGS__) #else #define LOG_MSG_WARNING(fmt, ...) do {} while(0) #define LOG_MSG_BUF_WARNING(dst, dst_size, fmt, ...) do {} while(0) #define LOG_DATA_WARNING(data, data_size, fmt, ...) do {} while(0) #endif /* LOG_LEVEL <= LOG_LEVEL_WARNING */ #if LOG_LEVEL <= LOG_LEVEL_ERROR #define LOG_MSG_ERROR(fmt, ...) LOG_MSG_GENERIC(LOG_LEVEL_ERROR, fmt, ##__VA_ARGS__) #define LOG_MSG_BUF_ERROR(dst, dst_size, fmt, ...) LOG_MSG_BUF_GENERIC(dst, dst_size, LOG_LEVEL_ERROR, fmt, ##__VA_ARGS__) #define LOG_DATA_ERROR(data, data_size, fmt, ...) LOG_DATA_GENERIC(data, data_size, LOG_LEVEL_ERROR, fmt, ##__VA_ARGS__) #else #define LOG_MSG_ERROR(fmt, ...) do {} while(0) #define LOG_MSG_BUF_ERROR(dst, dst_size, fmt, ...) do {} while(0) #define LOG_DATA_ERROR(data, data_size, fmt, ...) do {} while(0) #endif /* LOG_LEVEL <= LOG_LEVEL_ERROR */ /// Writes the provided string to the logfile. /// If the logfile hasn't been created and/or opened, this function takes care of it. void logWriteStringToLogFile(const char *src); /// Writes a formatted log string to the logfile. /// If the logfile hasn't been created and/or opened, this function takes care of it. __attribute__((format(printf, 5, 6))) void logWriteFormattedStringToLogFile(u8 level, const char *file_name, int line, const char *func_name, const char *fmt, ...); /// Writes a formatted log string to the provided buffer. /// If the buffer isn't big enough to hold both its current contents and the new formatted string, it will be resized. __attribute__((format(printf, 7, 8))) void logWriteFormattedStringToBuffer(char **dst, size_t *dst_size, u8 level, const char *file_name, int line, const char *func_name, const char *fmt, ...); /// Writes a formatted log string + a hex string representation of the provided binary data to the logfile. /// If the logfile hasn't been created and/or opened, this function takes care of it. __attribute__((format(printf, 7, 8))) void logWriteBinaryDataToLogFile(const void *data, size_t data_size, u8 level, const char *file_name, int line, const char *func_name, const char *fmt, ...); /// Forces a flush operation on the logfile. void logFlushLogFile(void); /// Write any pending data to the logfile, flushes it and then closes it. void logCloseLogFile(void); /// Returns a pointer to a dynamically allocated buffer that holds the last error message string, or NULL if there's none. /// The allocated buffer must be freed by the calling function using free(). char *logGetLastMessage(void); /// (Un)locks the log mutex. Can be used to block other threads and prevent them from writing data to the logfile. /// Use with caution. void logControlMutex(bool lock); #else /* (LOG_LEVEL >= LOG_LEVEL_DEBUG) && (LOG_LEVEL < LOG_LEVEL_NONE) */ /// Helper macros. #define LOG_MSG_GENERIC(level, fmt, ...) do {} while(0) #define LOG_MSG_BUF_GENERIC(dst, dst_size, level, fmt, ...) do {} while(0) #define LOG_DATA_GENERIC(data, data_size, level, fmt, ...) do {} while(0) #define LOG_MSG_DEBUG(fmt, ...) do {} while(0) #define LOG_MSG_BUF_DEBUG(dst, dst_size, fmt, ...) do {} while(0) #define LOG_DATA_DEBUG(data, data_size, fmt, ...) do {} while(0) #define LOG_MSG_INFO(fmt, ...) do {} while(0) #define LOG_MSG_BUF_INFO(dst, dst_size, fmt, ...) do {} while(0) #define LOG_DATA_INFO(data, data_size, fmt, ...) do {} while(0) #define LOG_MSG_WARNING(fmt, ...) do {} while(0) #define LOG_MSG_BUF_WARNING(dst, dst_size, fmt, ...) do {} while(0) #define LOG_DATA_WARNING(data, data_size, fmt, ...) do {} while(0) #define LOG_MSG_ERROR(fmt, ...) do {} while(0) #define LOG_MSG_BUF_ERROR(dst, dst_size, fmt, ...) do {} while(0) #define LOG_DATA_ERROR(data, data_size, fmt, ...) do {} while(0) #endif /* (LOG_LEVEL >= LOG_LEVEL_DEBUG) && (LOG_LEVEL < LOG_LEVEL_NONE) */ #ifdef __cplusplus } #endif #endif /* __NXDT_LOG_H__ */