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90 lines
1.5 KiB
C++
90 lines
1.5 KiB
C++
#ifndef LOG_H__
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#define LOG_H__
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#include <string>
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#include <iostream>
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#include <sstream>
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#include <fstream>
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#include <functional>
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#include "Queue.h"
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struct LogMsg
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{
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std::stringstream s;
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std::ostream& output;
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LogMsg (std::ostream& o = std::cout): output (o) {};
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void Process();
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};
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class Log: public i2p::util::MsgQueue<LogMsg>
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{
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public:
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Log (): m_LogFile (nullptr) { SetOnEmpty (std::bind (&Log::Flush, this)); };
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~Log () { delete m_LogFile; };
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void SetLogFile (const std::string& fullFilePath);
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std::ofstream * GetLogFile () const { return m_LogFile; };
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private:
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void Flush ();
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private:
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std::ofstream * m_LogFile;
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};
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extern Log * g_Log;
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inline void StartLog (const std::string& fullFilePath)
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{
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if (!g_Log)
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{
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g_Log = new Log ();
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if (fullFilePath.length () > 0)
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g_Log->SetLogFile (fullFilePath);
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}
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}
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inline void StopLog ()
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{
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if (g_Log)
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{
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delete g_Log;
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g_Log = nullptr;
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}
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}
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template<typename TValue>
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void LogPrint (std::stringstream& s, TValue arg)
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{
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s << arg;
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}
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template<typename TValue, typename... TArgs>
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void LogPrint (std::stringstream& s, TValue arg, TArgs... args)
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{
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LogPrint (s, arg);
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LogPrint (s, args...);
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}
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template<typename... TArgs>
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void LogPrint (TArgs... args)
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{
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LogMsg * msg = (g_Log && g_Log->GetLogFile ()) ? new LogMsg (*g_Log->GetLogFile ()) : new LogMsg ();
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LogPrint (msg->s, args...);
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msg->s << std::endl;
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if (g_Log)
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g_Log->Put (msg);
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else
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{
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msg->Process ();
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delete msg;
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}
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}
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#endif
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