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Fast-path response header connection check

This commit is contained in:
Ben Adams 2016-05-19 00:13:33 +01:00
parent 86567e1d93
commit 5eb1466487
1 changed files with 6 additions and 3 deletions
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9
src/Microsoft.AspNetCore.Server.Kestrel/Http/Frame.cs
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@ -670,14 +670,17 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Http
var responseHeaders = _frameHeaders.ResponseHeaders; var responseHeaders = _frameHeaders.ResponseHeaders;
responseHeaders.SetReadOnly(); responseHeaders.SetReadOnly();
var hasConnection = responseHeaders.HasConnection;
var end = SocketOutput.ProducingStart(); var end = SocketOutput.ProducingStart();
if (_keepAlive) if (_keepAlive && hasConnection)
{ {
foreach (var connectionValue in responseHeaders.HeaderConnection) foreach (var connectionValue in responseHeaders.HeaderConnection)
{ {
if (connectionValue.IndexOf("close", StringComparison.OrdinalIgnoreCase) != -1) if (connectionValue.IndexOf("close", StringComparison.OrdinalIgnoreCase) != -1)
{ {
_keepAlive = false; _keepAlive = false;
break;
} }
} }
} }
@ -716,11 +719,11 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Http
} }
} }
if (!_keepAlive && !responseHeaders.HasConnection && _httpVersion != HttpVersionType.Http10) if (!_keepAlive && !hasConnection && _httpVersion != HttpVersionType.Http10)
{ {
responseHeaders.SetRawConnection("close", _bytesConnectionClose); responseHeaders.SetRawConnection("close", _bytesConnectionClose);
} }
else if (_keepAlive && !responseHeaders.HasConnection && _httpVersion == HttpVersionType.Http10) else if (_keepAlive && !hasConnection && _httpVersion == HttpVersionType.Http10)
{ {
responseHeaders.SetRawConnection("keep-alive", _bytesConnectionKeepAlive); responseHeaders.SetRawConnection("keep-alive", _bytesConnectionKeepAlive);
} }