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guard localtime with a mutex to avoid race

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This commit is contained in:
Alexey Rybalchenko 2018-07-30 14:24:47 +02:00 committed by Dennis Klein
parent 63820e5f2c
commit 1f600fa981
1 changed files with 5 additions and 2 deletions
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7
logger/Logger.cxx
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@ -575,9 +575,12 @@ void Logger::RemoveCustomSink(const string& key)
Logger& Logger::Log()
{
char tsstr[32];
if (!strftime(tsstr, sizeof(tsstr), "%H:%M:%S", localtime(&(fMetaData.timestamp))))
{
tsstr[0] = 'u';
lock_guard<mutex> lock(fMtx); // localtime is not threadsafe, guard it
if (!strftime(tsstr, sizeof(tsstr), "%H:%M:%S", localtime(&(fMetaData.timestamp))))
{
tsstr[0] = 'u';
}
}
if ((!fColored && LoggingToConsole()) || LoggingToFile())