Logger.cpp

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#include "Globals.h"  // NOTE: MSVC stupidness requires this to be the same across all modules
#include "Logger.h"
 
#include "OSSupport/IsThread.h"
#ifdef _WIN32
    #include <time.h>
#endif
 
 
 
 
 
static void WriteLogOpener(fmt::memory_buffer & Buffer)
{
    const time_t rawtime = time(nullptr);
 
    struct tm timeinfo;
#ifdef _MSC_VER
    localtime_s(&timeinfo, &rawtime);
#else
    localtime_r(&rawtime, &timeinfo);
#endif
 
#ifndef NDEBUG
    const auto ThreadID = std::hash<std::thread::id>()(std::this_thread::get_id());
    fmt::format_to(
        Buffer, "[{0:04x}|{1:02d}:{2:02d}:{3:02d}] ",
        ThreadID, timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_sec
    );
#else
    fmt::format_to(
        Buffer, "[{0:02d}:{1:02d}:{2:02d}] ",
        timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_sec
    );
#endif
}
 
 
 
 
 
cLogger & cLogger::GetInstance(void)
{
    static cLogger Instance;
    return Instance;
}
 
 
 
 
 
void cLogger::InitiateMultithreading()
{
    GetInstance();
}
 
 
 
 
 
void cLogger::LogSimple(std::string_view a_Message, eLogLevel a_LogLevel)
{
    fmt::memory_buffer Buffer;
    WriteLogOpener(Buffer);
    fmt::format_to(Buffer, "{0}\n", a_Message);
    LogLine(std::string_view(Buffer.data(), Buffer.size()), a_LogLevel);
}
 
 
 
 
 
void cLogger::LogLine(std::string_view a_Line, eLogLevel a_LogLevel)
{
    cCSLock Lock(m_CriticalSection);
    for (size_t i = 0; i < m_LogListeners.size(); i++)
    {
        m_LogListeners[i]->Log(a_Line, a_LogLevel);
    }
}
 
 
 
 
 
void cLogger::LogPrintf(std::string_view a_Format, eLogLevel a_LogLevel, fmt::printf_args a_ArgList)
{
    fmt::memory_buffer Buffer;
    WriteLogOpener(Buffer);
    fmt::vprintf(Buffer, fmt::to_string_view(a_Format), a_ArgList);
    fmt::format_to(Buffer, "\n");
 
    LogLine(std::string_view(Buffer.data(), Buffer.size()), a_LogLevel);
}
 
 
 
 
 
void cLogger::LogFormat(std::string_view a_Format, eLogLevel a_LogLevel, fmt::format_args a_ArgList)
{
    fmt::memory_buffer Buffer;
    WriteLogOpener(Buffer);
    fmt::vformat_to(Buffer, a_Format, a_ArgList);
    fmt::format_to(Buffer, "\n");
 
    LogLine(std::string_view(Buffer.data(), Buffer.size()), a_LogLevel);
}
 
 
 
 
 
cLogger::cAttachment cLogger::AttachListener(std::unique_ptr<cListener> a_Listener)
{
    auto nonOwning = a_Listener.get();
    {
        cCSLock Lock(m_CriticalSection);
        m_LogListeners.push_back(std::move(a_Listener));
    }
    return cAttachment{nonOwning};
}
 
 
 
 
 
void cLogger::DetachListener(cListener * a_Listener)
{
    cCSLock Lock(m_CriticalSection);
    m_LogListeners.erase(
        std::remove_if(
            m_LogListeners.begin(),
            m_LogListeners.end(),
            [=](std::unique_ptr<cListener> & a_OtherListener) -> bool
            {
                return a_OtherListener.get() == a_Listener;
            }
        )
    );
}
 
 
 
 
 
// Global functions
 
void Logger::LogFormat(std::string_view a_Format, eLogLevel a_LogLevel, fmt::format_args a_ArgList)
{
    cLogger::GetInstance().LogFormat(a_Format, a_LogLevel, a_ArgList);
}
 
 
 
 
 
void Logger::LogPrintf(std::string_view a_Format, eLogLevel a_LogLevel, fmt::printf_args a_ArgList)
{
    cLogger::GetInstance().LogPrintf(a_Format, a_LogLevel, a_ArgList);
}
 
 
 
 
 
void Logger::LogSimple(std::string_view a_Message, eLogLevel a_LogLevel)
{
    cLogger::GetInstance().LogSimple(a_Message, a_LogLevel);
}