public void TestWriterIsReused02()
{
UnsafeWriter firstWriter = null, secondWriter = null;
var thread = new Thread(() =>
{
UnsafeWriter.AllowUnsafeWriterCaching = true;
try
{
using (var cookie = UnsafeWriter.NewThreadLocalWriter())
{
firstWriter = cookie.Writer;
}
using (var cookie = UnsafeWriter.NewThreadLocalWriterNoCaching())
{
secondWriter = cookie.Writer;
}
}
finally
{
UnsafeWriter.AllowUnsafeWriterCaching = false;
}
});
thread.Start();
thread.Join();
Assert.IsNotNull(firstWriter, "firstWriter != null");
Assert.IsNotNull(secondWriter, "secondWriter != null");
Assert.IsTrue(ReferenceEquals(firstWriter, secondWriter), "object.ReferenceEquals(firstWriter, secondWriter)");
}
private void SendAck(long seqN)
{
try
{
using (var cookie = UnsafeWriter.NewThreadLocalWriterNoCaching())
{
cookie.Writer.Write(ACK_MSG_LEN);
cookie.Writer.Write(seqN);
cookie.CopyTo(myAckPkgHeader);
}
lock (mySocketSendLock)
Socket.Send(myAckPkgHeader);
}
catch (ObjectDisposedException)
{
Log.Verbose($"{Id}: Socket was disposed during ACK, seqn = {seqN}");
}
catch (SocketException e)
{
// looks like this does not deserve a warn, as the only thing that can happen is a fatal socket failure anyway, and that will likely be reported properly from other threads
Log.Verbose(e, $"{Id}: ${e.GetType()} raised during ACK, seqn = {seqN}");
}
catch (Exception e)
{
Log.Warn(e, $"{Id}: {e.GetType()} raised during ACK, seqn = {seqN}");
}
}
private void Ping()
{
if (BackwardsCompatibleWireFormat)
{
return;
}
try
{
if (!ConnectionEstablished(myCurrentTimeStamp, myCounterpartNotionTimestamp))
{
if (HeartbeatAlive.Value) // log only on change
{
Log.Trace()?.Log($"Disconnect detected while sending PING {Id}: " +
$"currentTimeStamp: {myCurrentTimeStamp}, " +
$"counterpartTimestamp: {myCounterpartTimestamp}, " +
$"counterpartNotionTimestamp: {myCounterpartNotionTimestamp}");
}
HeartbeatAlive.Value = false;
}
using (var cookie = UnsafeWriter.NewThreadLocalWriterNoCaching())
{
cookie.Writer.Write(PING_LEN);
cookie.Writer.Write(myCurrentTimeStamp);
cookie.Writer.Write(myCounterpartTimestamp);
cookie.CopyTo(myPingPkgHeader);
}
lock (mySocketSendLock)
Socket.Send(myPingPkgHeader);
++myCurrentTimeStamp;
}
catch (ObjectDisposedException)
{
Log.Verbose($"{Id}: Socket was disposed during PING");
}
catch (Exception e)
{
Log.Warn(e, $"{Id}: {e.GetType()} raised during PING");
}
}
public void TestWriterIsNotReused01()
{
UnsafeWriter firstWriter = null, secondWriter = null;
var thread = new Thread(() =>
{
using (var cookie = UnsafeWriter.NewThreadLocalWriterNoCaching())
{
firstWriter = cookie.Writer;
}
using (var cookie = UnsafeWriter.NewThreadLocalWriterNoCaching())
{
secondWriter = cookie.Writer;
}
});
thread.Start();
thread.Join();
Assert.IsNotNull(firstWriter, "firstWriter != null");
Assert.IsNotNull(secondWriter, "secondWriter != null");
Assert.IsFalse(ReferenceEquals(firstWriter, secondWriter), "object.ReferenceEquals(firstWriter, secondWriter)");
}
