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Avoid microsecond format string parsing #700

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Avoid microsecond format string parsing #700

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19 changes: 14 additions & 5 deletions src/base/LogHandler.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -28,13 +28,22 @@ void LogHandler::setupLogFiles(el::Configurations *defaultConf,
const string &path, const string &filenamePrefix,
bool logToStdout, bool redirectStderrToFile,
bool appendPid, string maxlogsize) {
time_t rawtime;
struct tm *timeinfo;
auto now = std::chrono::system_clock::now();
time_t rawtime = std::chrono::system_clock::to_time_t(now);
struct tm *timeinfo = std::localtime(&rawtime);

char buffer[80];
time(&rawtime);
timeinfo = localtime(&rawtime);
strftime(buffer, sizeof(buffer), "%Y-%m-%d_%H-%M-%S.%f", timeinfo);
strftime(buffer, sizeof(buffer), "%Y-%m-%d_%H-%M-%S", timeinfo);
string current_time(buffer);

auto duration = now.time_since_epoch();
auto microseconds =
std::chrono::duration_cast<std::chrono::microseconds>(duration) %
std::chrono::seconds(1);
std::stringstream ss;
ss << std::setw(6) << std::setfill('0') << microseconds.count();
current_time += "." + ss.str();

string logFilename = filenamePrefix + "-" + current_time;
string stderrFilename = filenamePrefix + "-stderr-" + current_time;
if (appendPid) {
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