ES-DE/es-core/src/Log.cpp

86 lines
1.7 KiB
C++

// SPDX-License-Identifier: MIT
//
// EmulationStation Desktop Edition
// Log.cpp
//
// Log handling.
//
#include "Log.h"
#include "Platform.h"
#include "utils/StringUtil.h"
#include <fstream>
#include <iomanip>
#include <iostream>
LogLevel Log::reportingLevel = LogInfo;
std::ofstream file;
void Log::init()
{
Utils::FileSystem::removeFile(getLogPath() + ".bak");
// Rename the previous log file.
Utils::FileSystem::renameFile(getLogPath(), getLogPath() + ".bak", true);
return;
}
void Log::open()
{
#if defined(_WIN64)
file.open(Utils::String::stringToWideString(getLogPath()).c_str());
#else
file.open(getLogPath().c_str());
#endif
}
std::ostringstream& Log::get(LogLevel level)
{
time_t t = time(nullptr);
struct tm tm;
#if defined(_WIN64)
// Of course Windows does not follow standards and puts the parameters the other way
// around compared to POSIX.
localtime_s(&tm, &t);
#else
localtime_r(&t, &tm);
#endif
os << std::put_time(&tm, "%b %d %T ") << logLevelMap[level] << ":\t";
messageLevel = level;
return os;
}
void Log::flush()
{
// This runs on application exit.
file.flush();
}
void Log::close()
{
if (file.is_open())
file.close();
}
Log::~Log()
{
os << std::endl;
if (!file.is_open()) {
// Not open yet, print to stdout.
std::cerr << "Error: Tried to write to log file before it was open, "
"the following won't be logged:\n";
std::cerr << os.str();
return;
}
file << os.str();
// If it's an error, also print to console.
// Print all messages if using --debug.
if (messageLevel == LogError || reportingLevel >= LogDebug)
std::cerr << os.str();
}