protot/3rdparty/RuntimeCompiledCpp/Systems/LogSystem/FileLogSystem/FileLogSystem.cpp

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//
// Copyright (c) 2010-2011 Matthew Jack and Doug Binks
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
#include "FileLogSystem.h"
// Currently we create the file on first real output, and only close it on shutdown
#include <stdarg.h>
#include <assert.h>
#pragma warning( disable : 4996 4800 )
FileLogSystem::FileLogSystem(void)
{
m_fp = NULL;
m_eVerbosity = eLV_EVENTS;
}
FileLogSystem::~FileLogSystem(void)
{
CloseFile();
}
bool FileLogSystem::SetLogPath( const char * sPath, bool bTest )
{
m_sPath = sPath;
if (!bTest) return true;
if (!OpenFile()) return false;
if (!CloseFile()) return false;
return true;
}
ELogVerbosity FileLogSystem::GetVerbosity() const
{
return m_eVerbosity;
}
void FileLogSystem::SetVerbosity(ELogVerbosity eVerbosity)
{
m_eVerbosity = eVerbosity;
}
FileLogSystem::TVerbosityPeeker FileLogSystem::GetVerbosityPeeker() const
{
return (&m_eVerbosity);
}
void FileLogSystem::Log(ELogVerbosity eVerbosity, const char * format, ...)
{
va_list args;
va_start(args, format);
LogInternal(eVerbosity, format, args);
}
void FileLogSystem::LogVa(va_list args, ELogVerbosity eVerbosity, const char * format)
{
LogInternal(eVerbosity, format, args);
}
void FileLogSystem::LogInternal(ELogVerbosity eVerbosity, const char * format, va_list args)
{
if (eVerbosity > m_eVerbosity || eVerbosity == eLV_NEVER) return;
if (!m_fp) OpenFile();
if (!m_fp) return;
int result = vsnprintf(m_buff, LOGSYSTEM_MAX_BUFFER-1, format, args);
// Make sure there's a limit to the amount of rubbish we can output
m_buff[LOGSYSTEM_MAX_BUFFER-1] = '\0';
fprintf(m_fp, "%s", m_buff);
fflush(m_fp);
}
bool FileLogSystem::OpenFile()
{
m_fp = fopen(m_sPath.c_str(),"wt");
return m_fp;
}
bool FileLogSystem::CloseFile()
{
if (!m_fp) return false;
bool bResult = fclose(m_fp);
m_fp = NULL;
return bResult;
}