/*************************************************************************/ /* 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/ustring.h" #include "core/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; 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