Reuse HttpProtocol CTS (#31466)

BrennanConroy · web-flow · commit 8d721cf5fb3d · 2021-04-02T21:42:56.000-07:00
diff --git a/src/Servers/Kestrel/Core/src/Internal/Http/HttpProtocol.cs b/src/Servers/Kestrel/Core/src/Internal/Http/HttpProtocol.cs
@@ -400,8 +400,11 @@ public void Reset()
             lock (_abortLock)
             {
                 _preventRequestAbortedCancellation = false;
-                localAbortCts = _abortedCts;
-                _abortedCts = null;
+                if (_abortedCts?.TryReset() == false)
+                {
+                    localAbortCts = _abortedCts;
+                    _abortedCts = null;
+                }
             }
 
             localAbortCts?.Dispose();

Original file line number	Diff line number	Diff line change
`@@ -400,8 +400,11 @@ public void Reset()`
`400`	`400`	`lock (_abortLock)`
`401`	`401`	`{`
`402`	`402`	`_preventRequestAbortedCancellation = false;`
`403`		`- localAbortCts = _abortedCts;`
`404`		`- _abortedCts = null;`
	`403`	`+ if (_abortedCts?.TryReset() == false)`
	`404`	`+ {`
	`405`	`+ localAbortCts = _abortedCts;`
	`406`	`+ _abortedCts = null;`
	`407`	`+ }`
`405`	`408`	`}`
`406`	`409`
`407`	`410`	`localAbortCts?.Dispose();`