public PingStoringBlock(Func <string[], Task> storeFunc)
{
_source = new BatchBlock <string>(25);
var storageBlock = new ActionBlock <string[]>(storeFunc, new ExecutionDataflowBlockOptions {
MaxDegreeOfParallelism = DataflowBlockOptions.Unbounded
});
_source.LinkTo(storageBlock, new DataflowLinkOptions {
PropagateCompletion = true
});
_target = new ActionBlock <string>(async(message) =>
{
await((BatchBlock <string>)_source).SendAsync(message);
});
_target.Completion.ContinueWith(t =>
{
if (t.IsFaulted)
{
_source.Fault(t.Exception);
}
else
{
_source.Complete();
}
});
}
private Action WrapStart(Action start, ISourceBlock <TOutput> output)
{
return(() =>
{
try
{
start();
}
catch (Exception ex)
{
output.Fault(ex);
}
});
}
public PingParsingBlock(params BasePingParser[] parsers)
{
_deadLetter = new BufferBlock <string>();
_source = new BufferBlock <Ping>();
_buffer = new BufferBlock <string>();
_target = new ActionBlock <string>(async(s) => {
await((BufferBlock <string>)_buffer).SendAsync(s);
}, new ExecutionDataflowBlockOptions
{
MaxDegreeOfParallelism = DataflowBlockOptions.Unbounded
});
for (int i = 0; i < parsers.Length; i++)
{
var parser = parsers[i];
_buffer.LinkTo(parser, new DataflowLinkOptions {
PropagateCompletion = true
}, parser.Filter);
parser.LinkTo(_source, new DataflowLinkOptions {
PropagateCompletion = true
});
_pendingTasks.Add(parser.Completion);
}
_buffer.LinkTo(_deadLetter, new DataflowLinkOptions {
PropagateCompletion = true
});
_target.Completion.ContinueWith((t) =>
{
if (t.IsFaulted)
{
_buffer.Fault(t.Exception);
}
else
{
_buffer.Complete();
}
});
_pendingTasks.Add(_source.Completion);
_pendingTasks.Add(_target.Completion);
_pendingTasks.Add(_buffer.Completion);
}
public BasePingParser(Func <string, Ping> parse)
{
_source = new BufferBlock <Ping>();
_target = new ActionBlock <string>(async msg => await((BufferBlock <Ping>)_source).SendAsync(parse(msg)),
new ExecutionDataflowBlockOptions
{
MaxDegreeOfParallelism = DataflowBlockOptions.Unbounded
});
_target.Completion.ContinueWith((t) =>
{
if (t.IsFaulted)
{
_source.Fault(t.Exception);
}
else
{
_source.Complete();
}
});
}
#pragma warning disable RECS0165 // Asynchronous methods should return a Task instead of void
public static async void BidirectionalLinkTo <T>(this ISourceBlock <T> source, ITargetBlock <T> target)
#pragma warning restore RECS0165 // Asynchronous methods should return a Task instead of void
{
source.LinkTo(target, new DataflowLinkOptions
{
PropagateCompletion = true
});
try
{
await target.Completion.ConfigureAwait(false);
}
#pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body
catch
#pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body
{
// we do not want to change the stacktrace of the exception.
}
if (target.Completion.IsFaulted && target.Completion.Exception != null)
{
source.Fault(target.Completion.Exception.Flatten());
}
}
public void Fault(Exception exception)
{
_batchBlock.Fault(exception);
}
public void Fault(Exception ex)
{
compHelper.Fault(ex);
source.Fault(ex);
target.Fault(ex);
}
void IDataflowBlock.Fault(Exception exception)
{
orderCapturer.Fault(exception);
}
public void Fault(Exception exception)
{
actualSource.Fault(exception);
}
public void Fault(Exception exception)
{
_source.Fault(exception);
}
