public WorkerEventLoopGroup(DispatcherEventLoopGroup eventLoopGroup, int nThreads, IThreadFactory threadFactory, IEventExecutorChooserFactory <WorkerEventLoop> chooserFactory, IRejectedExecutionHandler rejectedHandler, TimeSpan breakoutInterval)
{
if (eventLoopGroup is null)
{
ThrowHelper.ThrowArgumentNullException(ExceptionArgument.eventLoopGroup);
}
if (chooserFactory is null)
{
ThrowHelper.ThrowArgumentNullException(ExceptionArgument.chooserFactory);
}
if ((uint)(nThreads - 1) > SharedConstants.TooBigOrNegative)
{
ThrowHelper.ThrowArgumentException_Positive(nThreads, ExceptionArgument.nThreads);
}
_dispatcherLoop = eventLoopGroup.Dispatcher;
PipeName = _dispatcherLoop.PipeName;
// Wait until the pipe is listening to connect
_dispatcherLoop.WaitForLoopRun(StartTimeout);
nThreads = 0u >= (uint)nThreads ? DefaultEventLoopThreadCount : nThreads;
_eventLoops = new WorkerEventLoop[nThreads];
var terminationTasks = new Task[nThreads];
for (int i = 0; i < nThreads; i++)
{
WorkerEventLoop eventLoop = null;
bool success = false;
try
{
eventLoop = new WorkerEventLoop(this, threadFactory, rejectedHandler, breakoutInterval);
success = eventLoop.ConnectTask.Wait(StartTimeout);
if (!success)
{
ThrowHelper.ThrowTimeoutException(PipeName);
}
}
catch (Exception ex)
{
ThrowHelper.ThrowInvalidOperationException_CreateChild(ex);
}
finally
{
if (!success)
{
Task.WhenAll(_eventLoops.Take(i).Select(loop => loop.ShutdownGracefullyAsync())).Wait();
}
}
_eventLoops[i] = eventLoop;
terminationTasks[i] = eventLoop.TerminationCompletion;
}
_chooser = chooserFactory.NewChooser(_eventLoops);
TerminationCompletion = Task.WhenAll(terminationTasks);
}
/// <summary>Creates a new instance of <see cref="MultithreadEventExecutorGroup{T1, T2}"/>.</summary>
protected MultithreadEventExecutorGroup(int nThreads,
IEventExecutorChooserFactory <TEventExecutor> chooserFactory,
Func <TExecutorGroup, TEventExecutor> eventExecutorFactory)
{
if (nThreads <= 0)
{
ThrowHelper.ThrowArgumentException_Positive(nThreads, ExceptionArgument.nThreads);
}
if (chooserFactory is null)
{
ThrowHelper.ThrowArgumentNullException(ExceptionArgument.chooserFactory);
}
if (eventExecutorFactory is null)
{
ThrowHelper.ThrowArgumentNullException(ExceptionArgument.eventExecutorFactory);
}
_children = new TEventExecutor[nThreads];
var terminationTasks = new Task[nThreads];
for (int i = 0; i < nThreads; i++)
{
TEventExecutor eventLoop = null;
bool success = false;
try
{
eventLoop = eventExecutorFactory((TExecutorGroup)this);
success = true;
}
catch (Exception ex)
{
ThrowHelper.ThrowInvalidOperationException_FailedToCreateAChildEventLoop(ex);
}
finally
{
if (!success)
{
Task.WhenAll(_children
.Take(i)
.Select(loop => loop.ShutdownGracefullyAsync()))
.Wait();
}
}
_children[i] = eventLoop;
terminationTasks[i] = eventLoop.TerminationCompletion;
}
TerminationCompletion = Task.WhenAll(terminationTasks);
_chooser = chooserFactory.NewChooser(_children);
}
