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.NET: Add support for Subworkflows and many threading fixes (#1066)

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* feat: Add support for Workflow-as-Executor

* Fixes routing of 'object' compile-typed variables to properly take in type information
* Fixes a concurrency issue in StepTracer

* fix: Make Subworkflow ExternalRequests work properly

* fix: Threading and Concurrency fixes; prep for OffThread Mode

* refactor: Remove dead code around OffStreamRunEventStream

Currently not used, and will be replaced with a rewrite when brought back, so having it in the change is not valuable.

* ci: Work around issues with dotnet-format not properly analyzing the source

* fix: Fix the logic of AsyncCoordinator and AsyncBarrier

* Prevent individual wait cancellations from canceling the entire barrier
* Propagate information about whether the wait was completed or cancelled, and whether any waiters were present when released

* fix: Remove superfluous acces to .Keys in InProcStepTracer

* refactor: Clean up AsyncCoordinator's use of AsyncBarrier
This commit is contained in:
Jacob Alber
2025-10-03 17:26:30 +00:00
committed by GitHub
parent 880a99ca05
commit 32e7ff00b5
76 changed files with 2151 additions and 584 deletions
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dotnet/src/Microsoft.Agents.AI.Workflows/Execution/EdgeMap.cs
+6 -6
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@@ -12,9 +12,9 @@ internal sealed class EdgeMap
{
private readonly Dictionary<EdgeId, EdgeRunner> _edgeRunners = [];
private readonly Dictionary<EdgeId, IStatefulEdgeRunner> _statefulRunners = [];
private readonly Dictionary<string, InputEdgeRunner> _portEdgeRunners;
private readonly Dictionary<string, ResponseEdgeRunner> _portEdgeRunners;
private readonly InputEdgeRunner _inputRunner;
private readonly ResponseEdgeRunner _inputRunner;
private readonly IStepTracer? _stepTracer;
public EdgeMap(IRunnerContext runContext,
@@ -29,7 +29,7 @@ internal sealed class EdgeMap
public EdgeMap(IRunnerContext runContext,
Dictionary<string, HashSet<Edge>> workflowEdges,
IEnumerable<InputPort> workflowPorts,
IEnumerable<RequestPort> workflowPorts,
string startExecutorId,
IStepTracer? stepTracer = null)
{
@@ -53,10 +53,10 @@ internal sealed class EdgeMap
this._portEdgeRunners = workflowPorts.ToDictionary(
port => port.Id,
port => InputEdgeRunner.ForPort(runContext, port)
port => ResponseEdgeRunner.ForPort(runContext, port)
);
this._inputRunner = new InputEdgeRunner(runContext, startExecutorId);
this._inputRunner = new ResponseEdgeRunner(runContext, startExecutorId);
this._stepTracer = stepTracer;
}
@@ -78,7 +78,7 @@ internal sealed class EdgeMap
public ValueTask<DeliveryMapping?> PrepareDeliveryForResponseAsync(ExternalResponse response)
{
if (!this._portEdgeRunners.TryGetValue(response.PortInfo.PortId, out InputEdgeRunner? portRunner))
if (!this._portEdgeRunners.TryGetValue(response.PortInfo.PortId, out ResponseEdgeRunner? portRunner))
{
throw new InvalidOperationException($"Port {response.PortInfo.PortId} not found in the edge map.");
}