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[release/9.4] Refactor async task handling to use WaitAsync for cancellation support #10438

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Merged
merged 2 commits into from
Jul 16, 2025
Merged

[release/9.4] Refactor async task handling to use WaitAsync for cancellation support #10438

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3c95a74
Refactor async task handling to use WaitAsync for cancellation suppor…
davidfowl Jul 15, 2025
eb6ba6d
Ensure asynchronous execution for resource and container creation to …
davidfowl Jul 15, 2025
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18 changes: 7 additions & 11 deletions src/Aspire.Hosting/Dcp/DcpExecutor.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -789,7 +789,7 @@ private async Task CreateContainersAndExecutablesAsync(CancellationToken cancell
var containersTask = CreateContainersAsync(toCreate.Where(ar => ar.DcpResource is Container), cancellationToken);
var executablesTask = CreateExecutablesAsync(toCreate.Where(ar => ar.DcpResource is Executable), cancellationToken);

await Task.WhenAll(containersTask, executablesTask).ConfigureAwait(false);
await Task.WhenAll(containersTask, executablesTask).WaitAsync(cancellationToken).ConfigureAwait(false);
}

private void AddAllocatedEndpointInfo(IEnumerable<AppResource> resources)
Expand Down Expand Up @@ -1084,10 +1084,11 @@ async Task CreateResourceExecutablesAsyncCore(IResource resource, IEnumerable<Ap
var tasks = new List<Task>();
foreach (var group in executableResources.GroupBy(e => e.ModelResource))
{
tasks.Add(CreateResourceExecutablesAsyncCore(group.Key, group, cancellationToken));
// Force this to be async so that blocking code does not stop other executables from being created.
tasks.Add(Task.Run(() => CreateResourceExecutablesAsyncCore(group.Key, group, cancellationToken), cancellationToken));
}

return Task.WhenAll(tasks);
return Task.WhenAll(tasks).WaitAsync(cancellationToken);
}
finally
{
Expand All @@ -1097,9 +1098,6 @@ async Task CreateResourceExecutablesAsyncCore(IResource resource, IEnumerable<Ap

private async Task CreateExecutableAsync(AppResource er, ILogger resourceLogger, CancellationToken cancellationToken)
{
// Force async execution
await Task.Yield();

if (er.DcpResource is not Executable exe)
{
throw new InvalidOperationException($"Expected an Executable resource, but got {er.DcpResource.Kind} instead");
Expand Down Expand Up @@ -1338,10 +1336,11 @@ async Task CreateContainerAsyncCore(AppResource cr, CancellationToken cancellati
}
}

tasks.Add(CreateContainerAsyncCore(cr, cancellationToken));
// Force this to be async so that blocking code does not stop other containers from being created.
tasks.Add(Task.Run(() => CreateContainerAsyncCore(cr, cancellationToken), cancellationToken));
}

await Task.WhenAll(tasks).ConfigureAwait(false);
await Task.WhenAll(tasks).WaitAsync(cancellationToken).ConfigureAwait(false);
}
finally
{
Expand All @@ -1351,9 +1350,6 @@ async Task CreateContainerAsyncCore(AppResource cr, CancellationToken cancellati

private async Task CreateContainerAsync(AppResource cr, ILogger resourceLogger, CancellationToken cancellationToken)
{
// Force async execution
await Task.Yield();

await _executorEvents.PublishAsync(new OnResourceStartingContext(cancellationToken, KnownResourceTypes.Container, cr.ModelResource, cr.DcpResource.Metadata.Name)).ConfigureAwait(false);

var dcpContainerResource = (Container)cr.DcpResource;
Expand Down
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