/// <summary>
/// Checks the completed connection objects.
/// </summary>
/// <returns>True if everything completed normally and false if there were any client disconnections.</returns>
private bool CheckConnectionTask(List <Task <ConnectionData> > connectionList, ref TimeSpan?keepAlive, ref bool isKeepAliveDefault)
{
var allFine = true;
var processedCount = 0;
var i = 0;
while (i < connectionList.Count)
{
var current = connectionList[i];
if (!current.IsCompleted)
{
i++;
continue;
}
connectionList.RemoveAt(i);
processedCount++;
var connectionData = current.Result;
ChangeKeepAlive(connectionData.KeepAlive, ref keepAlive, ref isKeepAliveDefault);
if (connectionData.CompletionReason == CompletionReason.ClientDisconnect || connectionData.CompletionReason == CompletionReason.ClientException)
{
allFine = false;
}
}
if (processedCount > 0)
{
_diagnosticListener.ConnectionCompleted(processedCount);
}
return(allFine);
}
/// <summary>
/// Checks the completed connection objects and updates the server state based on their
/// results.
/// </summary>
private void HandleCompletedConnections()
{
var shutdown = false;
var processedCount = 0;
var i = 0;
while (i < _connectionList.Count)
{
var current = _connectionList[i];
if (!current.IsCompleted)
{
i++;
continue;
}
_connectionList.RemoveAt(i);
processedCount++;
var completionData = current.Result;
switch (completionData.Reason)
{
case CompletionReason.RequestCompleted:
CompilerServerLogger.Log("Client request completed");
if (completionData.NewKeepAlive is { } keepAlive)
{
CompilerServerLogger.Log($"Client changed keep alive to {keepAlive}");
ChangeKeepAlive(keepAlive);
}
if (completionData.ShutdownRequest)
{
CompilerServerLogger.Log("Client requested shutdown");
shutdown = true;
}
// These are all normal shutdown states. Nothing to do here.
break;
case CompletionReason.RequestError:
CompilerServerLogger.LogError("Client request failed");
shutdown = true;
break;
default:
CompilerServerLogger.LogError("Unexpected enum value");
shutdown = true;
break;
}
_diagnosticListener.ConnectionCompleted(completionData);
}
if (shutdown)
{
CompilerServerLogger.Log($"Shutting down server");
_state = State.ShuttingDown;
}
}
/// <summary>
/// Checks the completed connection objects.
/// </summary>
/// <returns>False if the server needs to begin shutting down</returns>
private void HandleCompletedConnections()
{
var shutdown = false;
var processedCount = 0;
var i = 0;
while (i < _connectionList.Count)
{
var current = _connectionList[i];
if (!current.IsCompleted)
{
i++;
continue;
}
_connectionList.RemoveAt(i);
processedCount++;
var connectionData = current.Result;
ChangeKeepAlive(connectionData.KeepAlive);
switch (connectionData.CompletionReason)
{
case CompletionReason.CompilationCompleted:
case CompletionReason.CompilationNotStarted:
CompilerServerLogger.Log("Client completed");
// These are all normal shutdown states. Nothing to do here.
break;
case CompletionReason.ClientDisconnect:
// Have to assume the worst here which is user pressing Ctrl+C at the command line and
// hence wanting all compilation to end.
CompilerServerLogger.LogError("Unexpected client disconnect. Shutting down server");
shutdown = true;
break;
case CompletionReason.ClientException:
CompilerServerLogger.LogError($"Unexpected client exception. Shutting down server");
shutdown = true;
break;
case CompletionReason.ClientShutdownRequest:
CompilerServerLogger.Log($"Client requesting server shutdown");
shutdown = true;
break;
default:
throw new InvalidOperationException($"Unexpected enum value {connectionData.CompletionReason}");
}
_diagnosticListener.ConnectionCompleted(connectionData.CompletionReason);
}
if (shutdown)
{
CompilerServerLogger.Log($"Shutting down server");
_state = State.ShuttingDown;
}
}
/// <summary>
/// Checks the completed connection objects and updates the server state based on their
/// results.
/// </summary>
private void HandleCompletedConnections()
{
var shutdown = false;
var i = 0;
while (i < _connectionList.Count)
{
var current = _connectionList[i];
if (!current.IsCompleted)
{
i++;
continue;
}
_connectionList.RemoveAt(i);
// These task should never fail. Unexpected errors will be caught and translated into
// a RequestError message
Debug.Assert(current.Status == TaskStatus.RanToCompletion);
var completionData = current.Result;
switch (completionData.Reason)
{
case CompletionReason.RequestCompleted:
CompilerServerLogger.Log("Client request completed");
if (completionData.NewKeepAlive is { } keepAlive)
{
CompilerServerLogger.Log($"Client changed keep alive to {keepAlive}");
ChangeKeepAlive(keepAlive);
}
if (completionData.ShutdownRequest)
{
CompilerServerLogger.Log("Client requested shutdown");
shutdown = true;
}
break;
case CompletionReason.RequestError:
CompilerServerLogger.LogError("Client request failed");
shutdown = true;
break;
default:
CompilerServerLogger.LogError("Unexpected enum value");
shutdown = true;
break;
}
_diagnosticListener.ConnectionCompleted(completionData);
}
if (shutdown)
{
ChangeToShuttingDown("Error handling client connection");
}
}