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120 lines
3.2 KiB
C++
120 lines
3.2 KiB
C++
#ifndef WEBCC_LOGGER_H_
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#define WEBCC_LOGGER_H_
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// This file was generated from "config.h.in" by CMake.
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#include "webcc/config.h"
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#ifdef WEBCC_ENABLE_LOG
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#include <cstring> // for strrchr()
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#include <string>
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#include "boost/filesystem/path.hpp"
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// Log levels.
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// VERB is similar to DEBUG commonly used by other projects.
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// USER is for the users who want to log their own logs but don't want any
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// VERB or INFO.
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#define WEBCC_VERB 0
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#define WEBCC_INFO 1
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#define WEBCC_USER 2
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#define WEBCC_WARN 3
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#define WEBCC_ERRO 4
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// Default log level.
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#ifndef WEBCC_LOG_LEVEL
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#define WEBCC_LOG_LEVEL WEBCC_USER
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#endif
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#define WEBCC_LOG_FILE_NAME "webcc.log"
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namespace webcc {
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enum LogMode {
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LOG_FILE = 1, // Log to file.
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LOG_CONSOLE = 2, // Log to console.
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LOG_FLUSH = 4, // Flush on each log.
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LOG_OVERWRITE = 8, // Overwrite any existing log file.
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};
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// Commonly used modes.
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const int LOG_CONSOLE_FILE_APPEND = LOG_CONSOLE | LOG_FILE;
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const int LOG_CONSOLE_FILE_OVERWRITE = LOG_CONSOLE | LOG_FILE | LOG_OVERWRITE;
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const int LOG_FILE_OVERWRITE = LOG_FILE | LOG_OVERWRITE;
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// Initialize logger.
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// If |dir| is empty, log file will be generated in current directory.
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void LogInit(const boost::filesystem::path& dir, int modes);
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void Log(int level, const char* file, int line, const char* format, ...);
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} // namespace webcc
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// Initialize the logger with a level.
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#define WEBCC_LOG_INIT(dir, modes) webcc::LogInit(dir, modes);
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// Definition of _WIN32 & _WIN64:
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// https://docs.microsoft.com/en-us/cpp/preprocessor/predefined-macros?view=vs-2015
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#if (defined(_WIN32) || defined(_WIN64))
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// See: https://stackoverflow.com/a/8488201
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// ISSUE: The last path separator of __FILE__ in a header file becomes "/"
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// instead of "\". The result is that __FILENAME__ will contain a
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// prefix of "webcc/". So don't log from a header file!
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#define __FILENAME__ std::strrchr("\\" __FILE__, '\\') + 1
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#else
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#define __FILENAME__ std::strrchr("/" __FILE__, '/') + 1
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#endif // defined(_WIN32) || defined(_WIN64)
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#if WEBCC_LOG_LEVEL <= WEBCC_VERB
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#define LOG_VERB(format, ...) \
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webcc::Log(WEBCC_VERB, __FILENAME__, __LINE__, format, ##__VA_ARGS__);
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#else
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#define LOG_VERB(format, ...)
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#endif
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#if WEBCC_LOG_LEVEL <= WEBCC_INFO
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#define LOG_INFO(format, ...) \
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webcc::Log(WEBCC_INFO, __FILENAME__, __LINE__, format, ##__VA_ARGS__);
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#else
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#define LOG_INFO(format, ...)
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#endif
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#if WEBCC_LOG_LEVEL <= WEBCC_USER
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#define LOG_USER(format, ...) \
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webcc::Log(WEBCC_USER, __FILENAME__, __LINE__, format, ##__VA_ARGS__);
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#else
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#define LOG_INFO(format, ...)
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#endif
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#if WEBCC_LOG_LEVEL <= WEBCC_WARN
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#define LOG_WARN(format, ...) \
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webcc::Log(WEBCC_WARN, __FILENAME__, __LINE__, format, ##__VA_ARGS__);
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#else
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#define LOG_WARN(format, ...)
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#endif
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#if WEBCC_LOG_LEVEL <= WEBCC_ERRO
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#define LOG_ERRO(format, ...) \
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webcc::Log(WEBCC_ERRO, __FILENAME__, __LINE__, format, ##__VA_ARGS__);
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#else
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#define LOG_ERRO(format, ...)
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#endif
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#else // WEBCC_ENABLE_LOG == 0
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#define WEBCC_LOG_INIT(dir, modes)
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#define LOG_VERB(format, ...)
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#define LOG_INFO(format, ...)
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#define LOG_USER(format, ...)
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#define LOG_WARN(format, ...)
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#define LOG_ERRO(format, ...)
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#endif // WEBCC_ENABLE_LOG
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#endif // WEBCC_LOGGER_H_
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