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Lazy create ResourceInvoker.InvokeFilterPipelineAsync statemachine

This commit is contained in:
Ben Adams 2019-04-12 03:01:10 +01:00 committed by Ryan Nowak
parent fe6907616b
commit 305249709c
1 changed files with 28 additions and 4 deletions
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32
src/Mvc/Mvc.Core/src/Infrastructure/ResourceInvoker.cs
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@ -199,7 +199,7 @@ namespace Microsoft.AspNetCore.Mvc.Infrastructure
/// </summary>
protected abstract void ReleaseResources();
private async Task InvokeFilterPipelineAsync()
private Task InvokeFilterPipelineAsync()
{
var next = State.InvokeBegin;
@ -214,10 +214,34 @@ namespace Microsoft.AspNetCore.Mvc.Infrastructure
// `isCompleted` will be set to true when we've reached a terminal state.
var isCompleted = false;
while (!isCompleted)
try
{
await Next(ref next, ref scope, ref state, ref isCompleted);
while (!isCompleted)
{
var lastTask = Next(ref next, ref scope, ref state, ref isCompleted);
if (!lastTask.IsCompletedSuccessfully)
{
return Awaited(this, lastTask, next, scope, state, isCompleted);
}
}
return Task.CompletedTask;
}
catch (Exception ex)
{
// Wrap non task-wrapped exceptions in a Task,
// as this isn't done automatically since the method is not async.
return Task.FromException(ex);
}
static async Task Awaited(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted)
{
await lastTask;
while (!isCompleted)
{
await invoker.Next(ref next, ref scope, ref state, ref isCompleted);
}
}
}