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Diffstat (limited to 'src/libjin/utils/log.h')
| -rw-r--r-- | src/libjin/utils/log.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/src/libjin/utils/log.h b/src/libjin/utils/log.h new file mode 100644 index 0000000..b047402 --- /dev/null +++ b/src/libjin/utils/log.h @@ -0,0 +1,134 @@ +/** +* Single.h/loghelper.h +* Copyright (C) 2017~2018 chai +*/ +#ifndef __LOG_HELPER_H +#define __LOG_HELPER_H +#include <string> +#include <iostream> +#include <fstream> +#include <stdarg.h> + +class Loghelper +{ +public: + // logĿ + enum Direction + { + DIR_CERR = 1 << 1, // + DIR_FILE = 1 << 2, // logļ + }; + + // ȼ + enum Level + { + LV_NONE = 0, // none + LV_ERROR = 1 << 1, // error + LV_WARN = 1 << 2, // warn + LV_INFO = 1 << 3, // info + LV_DEBUG = 1 << 4, // debug + LV_ALL = 0xffffffff + }; + + static void log(Level _level, const char* _fmt, ...); + + // ض + static void redirect(unsigned int _dir, char* _path = nullptr); + + // ɸѡȼ + static void restrict(unsigned int levels); + + static void close(); + +private: + static unsigned int dir; // Ŀ + static unsigned int levels; // ȼ + static std::ofstream fs; // ļ +}; + +typedef Loghelper::Level Loglevel; + +#ifdef LOGHELPER_IMPLEMENT + +#define hasbit(flag, bit) ((flag & bit) == bit) + +unsigned int Loghelper::dir = Loghelper::Direction::DIR_CERR; +unsigned int Loghelper::levels = Loghelper::Level::LV_ALL; +std::ofstream Loghelper::fs; + +void Loghelper::log(Level _level, const char* _fmt, ...) +{ + if (!hasbit(levels, _level)) + return; +#define FORMAT_MSG_BUFFER_SIZE (204800) + char* levelStr = nullptr; + switch (_level) + { + case LV_ERROR: + levelStr = "Error: "; + break; + case LV_WARN: + levelStr = "Warn: "; + break; + case LV_INFO: + levelStr = "Info: "; + break; + case LV_DEBUG: + levelStr = "Debug: "; + break; + default: + levelStr = "Unknown: "; + break; + } + char buffer[FORMAT_MSG_BUFFER_SIZE + 1] = { 0 }; + strcpy(buffer, levelStr); + va_list args; + va_start(args, _fmt); + vsnprintf(buffer + strlen(buffer), FORMAT_MSG_BUFFER_SIZE, _fmt, args); + va_end(args); + if (hasbit(dir, DIR_CERR)) + { + std::cerr << buffer << std::endl; + } + if (hasbit(dir, DIR_FILE)) + { + fs << buffer << std::endl; + } +#undef FORMAT_MSG_BUFFER_SIZE +} + +// ض +void Loghelper::redirect(unsigned int _dir, char* _path) +{ + dir = _dir; + if (hasbit(dir, DIR_FILE)) + { + try + { + fs.open(_path, std::ios_base::app); + } + catch (std::ios_base::failure& e) { + dir = DIR_CERR; + log(Level::LV_WARN, "ضlog· %s ʧ", _path); + } + } +} + +// ɸѡȼ +void Loghelper::restrict(unsigned int _levels) +{ + levels = _levels; +} + +void Loghelper::close() +{ + if (!fs.fail()) + fs.close(); + fs.clear(); +} + +#undef hasbit + +#endif + +#endif |