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/*************************************************************************/
/* logger.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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 LOGGER_H
#define LOGGER_H
#include "core/os/file_access.h"
#include "core/string/ustring.h"
#include "core/templates/vector.h"
#include <stdarg.h>
class Logger {
protected:
bool should_log(bool p_err);
public:
enum ErrorType {
ERR_ERROR,
ERR_WARNING,
ERR_SCRIPT,
ERR_SHADER
};
virtual void logv(const char *p_format, va_list p_list, bool p_err) _PRINTF_FORMAT_ATTRIBUTE_2_0 = 0;
virtual void log_error(const char *p_function, const char *p_file, int p_line, const char *p_code, const char *p_rationale, ErrorType p_type = ERR_ERROR);
void logf(const char *p_format, ...) _PRINTF_FORMAT_ATTRIBUTE_2_3;
void logf_error(const char *p_format, ...) _PRINTF_FORMAT_ATTRIBUTE_2_3;
virtual ~Logger() {}
};
/**
* Writes messages to stdout/stderr.
*/
class StdLogger : public Logger {
public:
virtual void logv(const char *p_format, va_list p_list, bool p_err) _PRINTF_FORMAT_ATTRIBUTE_2_0;
virtual ~StdLogger() {}
};
/**
* Writes messages to the specified file. If the file already exists, creates a copy (backup)
* of it with timestamp appended to the file name. Maximum number of backups is configurable.
* When maximum is reached, the oldest backups are erased. With the maximum being equal to 1,
* it acts as a simple file logger.
*/
class RotatedFileLogger : public Logger {
String base_path;
int max_files;
FileAccess *file = nullptr;
void rotate_file_without_closing();
void close_file();
void clear_old_backups();
void rotate_file();
public:
RotatedFileLogger(const String &p_base_path, int p_max_files = 10);
virtual void logv(const char *p_format, va_list p_list, bool p_err) _PRINTF_FORMAT_ATTRIBUTE_2_0;
virtual ~RotatedFileLogger();
};
class CompositeLogger : public Logger {
Vector<Logger *> loggers;
public:
CompositeLogger(Vector<Logger *> p_loggers);
virtual void logv(const char *p_format, va_list p_list, bool p_err) _PRINTF_FORMAT_ATTRIBUTE_2_0;
virtual void log_error(const char *p_function, const char *p_file, int p_line, const char *p_code, const char *p_rationale, ErrorType p_type = ERR_ERROR);
void add_logger(Logger *p_logger);
virtual ~CompositeLogger();
};
#endif // LOGGER_H
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