217 lines
5.3 KiB
C++
217 lines
5.3 KiB
C++
// Copyright (c) 2016-2018 Kiwano - Nomango
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#pragma once
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#include <kiwano/core/Common.h>
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#include <iomanip>
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#include <streambuf>
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#ifndef KGE_SYS_LOG
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#ifdef KGE_DEBUG
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#define KGE_SYS_LOG(FORMAT, ...) \
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::kiwano::Logger::GetInstance().Printf(::kiwano::Logger::Level::System, FORMAT, __VA_ARGS__)
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#else
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#define KGE_SYS_LOG __noop
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#endif
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#endif
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#ifndef KGE_WARN
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#define KGE_WARN(FORMAT, ...) ::kiwano::Logger::GetInstance().Printf(::kiwano::Logger::Level::Warning, FORMAT, __VA_ARGS__)
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#endif
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#ifndef KGE_ERROR
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#define KGE_ERROR(FORMAT, ...) ::kiwano::Logger::GetInstance().Printf(::kiwano::Logger::Level::Error, FORMAT, __VA_ARGS__)
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#endif
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#ifndef KGE_LOG
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#define KGE_LOG(...) ::kiwano::Logger::GetInstance().Println(::kiwano::Logger::Level::Info, __VA_ARGS__)
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#endif
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#ifndef KGE_LOGF
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#define KGE_LOGF(FORMAT, ...) ::kiwano::Logger::GetInstance().Printf(::kiwano::Logger::Level::Info, FORMAT, __VA_ARGS__)
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#endif
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#ifndef KGE_LOG_STREAM
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#define KGE_LOG_STREAM() ::kiwano::Logger::GetInstance().GetOutputStream()
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#endif
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#ifndef KGE_ERROR_STREAM
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#define KGE_ERROR_STREAM() ::kiwano::Logger::GetInstance().GetErrorStream()
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#endif
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namespace kiwano
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{
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/**
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* \~chinese
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* @brief <20><>־
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*/
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class KGE_API Logger : public Singleton<Logger>
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{
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friend Singleton<Logger>;
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public:
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/// \~chinese
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/// @brief <20><>־<EFBFBD><D6BE><EFBFBD><EFBFBD>
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enum class Level
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{
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Info, ///< <20><>Ϣ
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System, ///< ϵͳ
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Warning, ///< <20><><EFBFBD><EFBFBD>
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Error ///< <20><><EFBFBD><EFBFBD>
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};
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/// \~chinese
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/// @brief <20><>ӡ<EFBFBD><D3A1>־
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/// @param level <20><>־<EFBFBD><D6BE><EFBFBD><EFBFBD>
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/// @param format <20><>ʽ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>
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void Printf(Level level, const char* format, ...);
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/// \~chinese
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/// @brief <20><>ӡ<EFBFBD><D3A1>־
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/// @param level <20><>־<EFBFBD><D6BE><EFBFBD><EFBFBD>
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/// @param args <20><><EFBFBD><EFBFBD>
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template <typename... _Args>
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void Print(Level level, _Args&&... args);
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/// \~chinese
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/// @brief <20><>ӡһ<D3A1><D2BB><EFBFBD><EFBFBD>־
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/// @param level <20><>־<EFBFBD><D6BE><EFBFBD><EFBFBD>
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/// @param args <20><><EFBFBD><EFBFBD>
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template <typename... _Args>
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void Println(Level level, _Args&&... args);
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/// \~chinese
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/// @brief <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־
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void Enable();
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/// \~chinese
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/// @brief <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־
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void Disable();
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/// \~chinese
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/// @brief <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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OutputStream& GetOutputStream();
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/// \~chinese
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/// @brief <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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OutputStream& GetErrorStream();
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/// \~chinese
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/// @brief <20>ض<EFBFBD><D8B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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std::streambuf* RedirectOutputStream(std::streambuf* buf);
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/// \~chinese
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/// @brief <20>ض<EFBFBD><D8B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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std::streambuf* RedirectErrorStream(std::streambuf* buf);
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/// \~chinese
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/// @brief <20><>ʾ<EFBFBD><CABE><EFBFBD>رտ<D8B1><D5BF><EFBFBD>̨
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/// @note <20>˲<EFBFBD><CBB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ض<EFBFBD><D8B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><D7BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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void ShowConsole(bool show);
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private:
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Logger();
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~Logger();
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void Prepare(Level level, StringStream& sstream);
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void Output(Level level, StringStream& sstream);
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void ResetStreamToStdStream();
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void ResetConsoleColor() const;
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OutputStream& DefaultOutputColor(OutputStream& out);
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private:
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bool enabled_;
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WORD default_stdout_color_;
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WORD default_stderr_color_;
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OutputStream output_stream_;
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OutputStream error_stream_;
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};
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inline void Logger::Enable()
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{
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enabled_ = true;
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}
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inline void Logger::Disable()
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{
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enabled_ = false;
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}
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template <typename... _Args>
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void Logger::Print(Level level, _Args&&... args)
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{
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if (!enabled_)
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return;
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StringStream sstream;
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Prepare(level, sstream);
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// Format message
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(void)std::initializer_list<int>{ ((sstream << ' ' << args), 0)... };
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Output(level, sstream);
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}
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template <typename... _Args>
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void Logger::Println(Level level, _Args&&... args)
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{
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if (!enabled_)
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return;
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StringStream sstream;
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Prepare(level, sstream);
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// Format message
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(void)std::initializer_list<int>{ ((sstream << ' ' << args), 0)... };
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sstream << "\r\n";
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Output(level, sstream);
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}
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inline void Logger::ResetConsoleColor() const
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{
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::SetConsoleTextAttribute(::GetStdHandle(STD_OUTPUT_HANDLE), default_stdout_color_);
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::SetConsoleTextAttribute(::GetStdHandle(STD_ERROR_HANDLE), default_stderr_color_);
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}
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inline OutputStream& Logger::DefaultOutputColor(OutputStream& out)
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{
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::SetConsoleTextAttribute(::GetStdHandle(STD_OUTPUT_HANDLE), default_stdout_color_);
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return out;
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}
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inline OutputStream& Logger::GetOutputStream()
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{
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return output_stream_;
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}
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inline OutputStream& Logger::GetErrorStream()
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{
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return error_stream_;
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}
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} // namespace kiwano
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