in CredentialProvider.Microsoft/Logging/LoggerBase.cs [24:66]
public void Log(LogLevel level, bool allowOnConsole, string message)
{
if (writesToConsole && !allowOnConsole)
{
return;
}
if (!allowLogWrites)
{
// cheap reserve, if it swaps out after we add, meh, we miss one log
var buffer = bufferedLogs;
if (buffer != null)
{
buffer.Enqueue(Tuple.Create(level, message, DateTime.Now));
}
// we could pass this through if buffer is null since the Set message has already come through to unblock us, but
// the race should be rare and we don't know exactly how nuget will behave with the parallelism so
// opt to ignore this one racing log message.
return;
}
else if (bufferedLogs != null)
{
ConcurrentQueue<Tuple<LogLevel, string, DateTime>> buffer = null;
buffer = Interlocked.CompareExchange(ref bufferedLogs, null, bufferedLogs);
if (buffer != null)
{
foreach (var log in buffer)
{
if (log.Item1 >= minLogLevel)
{
WriteLog(log.Item1, GetLogPrefix(log.Item3) + log.Item2);
}
}
}
}
if (level >= minLogLevel)
{
WriteLog(level, GetLogPrefix(null) + message);
}
}