/*
* 12.3
* HttpSendHttpResponse() and HttpSendResponseEntityBody() Flag Values.
* The following flags can be used on calls to HttpSendHttpResponse() and HttpSendResponseEntityBody() API calls:
*
#define HTTP_SEND_RESPONSE_FLAG_DISCONNECT 0x00000001
#define HTTP_SEND_RESPONSE_FLAG_MORE_DATA 0x00000002
#define HTTP_SEND_RESPONSE_FLAG_RAW_HEADER 0x00000004
#define HTTP_SEND_RESPONSE_FLAG_VALID 0x00000007
*
* HTTP_SEND_RESPONSE_FLAG_DISCONNECT:
* specifies that the network connection should be disconnected immediately after
* sending the response, overriding the HTTP protocol's persistent connection features.
* HTTP_SEND_RESPONSE_FLAG_MORE_DATA:
* specifies that additional entity body data will be sent by the caller. Thus,
* the last call HttpSendResponseEntityBody for a RequestId, will have this flag reset.
* HTTP_SEND_RESPONSE_RAW_HEADER:
* specifies that a caller of HttpSendResponseEntityBody() is intentionally omitting
* a call to HttpSendHttpResponse() in order to bypass normal header processing. The
* actual HTTP header will be generated by the application and sent as entity body.
* This flag should be passed on the first call to HttpSendResponseEntityBody, and
* not after. Thus, flag is not applicable to HttpSendHttpResponse.
*/
// TODO: Consider using HTTP_SEND_RESPONSE_RAW_HEADER with HttpSendResponseEntityBody instead of calling HttpSendHttpResponse.
// This will give us more control of the bytes that hit the wire, including encodings, HTTP 1.0, etc..
// It may also be faster to do this work in managed code and then pass down only one buffer.
// What would we loose by bypassing HttpSendHttpResponse?
//
// TODO: Consider using the HTTP_SEND_RESPONSE_FLAG_BUFFER_DATA flag for most/all responses rather than just Opaque.
internal unsafe uint SendHeaders(HttpApiTypes.HTTP_DATA_CHUNK[] dataChunks,
ResponseStreamAsyncResult asyncResult,
HttpApiTypes.HTTP_FLAGS flags,
bool isOpaqueUpgrade)
{
Debug.Assert(!HasStarted, "HttpListenerResponse::SendHeaders()|SentHeaders is true.");
_responseState = ResponseState.Started;
var reasonPhrase = GetReasonPhrase(StatusCode);
uint statusCode;
uint bytesSent;
List <GCHandle> pinnedHeaders = SerializeHeaders(isOpaqueUpgrade);
try
{
if (dataChunks != null)
{
if (pinnedHeaders == null)
{
pinnedHeaders = new List <GCHandle>();
}
var handle = GCHandle.Alloc(dataChunks, GCHandleType.Pinned);
pinnedHeaders.Add(handle);
_nativeResponse.Response_V1.EntityChunkCount = (ushort)dataChunks.Length;
_nativeResponse.Response_V1.pEntityChunks = (HttpApiTypes.HTTP_DATA_CHUNK *)handle.AddrOfPinnedObject();
}
else if (asyncResult != null && asyncResult.DataChunks != null)
{
_nativeResponse.Response_V1.EntityChunkCount = asyncResult.DataChunkCount;
_nativeResponse.Response_V1.pEntityChunks = asyncResult.DataChunks;
}
else
{
_nativeResponse.Response_V1.EntityChunkCount = 0;
_nativeResponse.Response_V1.pEntityChunks = null;
}
var cachePolicy = new HttpApiTypes.HTTP_CACHE_POLICY();
if (_cacheTtl.HasValue && _cacheTtl.Value > TimeSpan.Zero)
{
cachePolicy.Policy = HttpApiTypes.HTTP_CACHE_POLICY_TYPE.HttpCachePolicyTimeToLive;
cachePolicy.SecondsToLive = (uint)Math.Min(_cacheTtl.Value.Ticks / TimeSpan.TicksPerSecond, Int32.MaxValue);
}
byte[] reasonPhraseBytes = HeaderEncoding.GetBytes(reasonPhrase);
fixed(byte *pReasonPhrase = reasonPhraseBytes)
{
_nativeResponse.Response_V1.ReasonLength = (ushort)reasonPhraseBytes.Length;
_nativeResponse.Response_V1.pReason = (byte *)pReasonPhrase;
fixed(HttpApiTypes.HTTP_RESPONSE_V2 *pResponse = &_nativeResponse)
{
statusCode =
HttpApi.HttpSendHttpResponse(
RequestContext.Server.RequestQueue.Handle,
Request.RequestId,
(uint)flags,
pResponse,
&cachePolicy,
&bytesSent,
IntPtr.Zero,
0,
asyncResult == null ? SafeNativeOverlapped.Zero : asyncResult.NativeOverlapped,
IntPtr.Zero);
// GoAway is only supported on later versions. Retry.
if (statusCode == ErrorCodes.ERROR_INVALID_PARAMETER &&
(flags & HttpApiTypes.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_GOAWAY) != 0)
{
flags &= ~HttpApiTypes.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_GOAWAY;
statusCode =
HttpApi.HttpSendHttpResponse(
RequestContext.Server.RequestQueue.Handle,
Request.RequestId,
(uint)flags,
pResponse,
&cachePolicy,
&bytesSent,
IntPtr.Zero,
0,
asyncResult == null ? SafeNativeOverlapped.Zero : asyncResult.NativeOverlapped,
IntPtr.Zero);
// Succeeded without GoAway, disable them.
if (statusCode != ErrorCodes.ERROR_INVALID_PARAMETER)
{
SupportsGoAway = false;
}
}
if (asyncResult != null &&
statusCode == ErrorCodes.ERROR_SUCCESS &&
HttpSysListener.SkipIOCPCallbackOnSuccess)
{
asyncResult.BytesSent = bytesSent;
// The caller will invoke IOCompleted
}
}
}
}
finally
{
FreePinnedHeaders(pinnedHeaders);
}
return(statusCode);
}
internal unsafe Task SendFileAsyncCore(string fileName, long offset, long?count, CancellationToken cancellationToken)
{
if (_skipWrites)
{
return(Task.CompletedTask);
}
var started = _requestContext.Response.HasStarted;
if (count == 0 && started)
{
// No data to send and we've already sent the headers
return(Task.CompletedTask);
}
if (cancellationToken.IsCancellationRequested)
{
Abort(ThrowWriteExceptions);
return(Task.FromCanceled <int>(cancellationToken));
}
// We are setting buffer size to 1 to prevent FileStream from allocating it's internal buffer
// It's too expensive to validate anything before opening the file. Open the file and then check the lengths.
var fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, bufferSize: 1,
options: FileOptions.Asynchronous | FileOptions.SequentialScan); // Extremely expensive.
try
{
var length = fileStream.Length; // Expensive, only do it once
if (!count.HasValue)
{
count = length - offset;
}
if (offset < 0 || offset > length)
{
throw new ArgumentOutOfRangeException(nameof(offset), offset, string.Empty);
}
if (count < 0 || count > length - offset)
{
throw new ArgumentOutOfRangeException(nameof(count), count, string.Empty);
}
CheckWriteCount(count);
}
catch
{
fileStream.Dispose();
throw;
}
// Make sure all validation is performed before this computes the headers
var flags = ComputeLeftToWrite(count.Value);
uint statusCode;
uint bytesSent = 0;
var chunked = _requestContext.Response.BoundaryType == BoundaryType.Chunked;
var asyncResult = new ResponseStreamAsyncResult(this, fileStream, offset, count.Value, chunked, cancellationToken);
try
{
if (!started)
{
statusCode = _requestContext.Response.SendHeaders(null, asyncResult, flags, false);
bytesSent = asyncResult.BytesSent;
}
else
{
// TODO: If opaque then include the buffer data flag.
statusCode = HttpApi.HttpSendResponseEntityBody(
RequestQueueHandle,
RequestId,
(uint)flags,
asyncResult.DataChunkCount,
asyncResult.DataChunks,
&bytesSent,
IntPtr.Zero,
0,
asyncResult.NativeOverlapped,
IntPtr.Zero);
}
}
catch (Exception e)
{
Logger.LogError(LoggerEventIds.FileSendAsyncError, e, "SendFileAsync");
asyncResult.Dispose();
Abort();
throw;
}
if (statusCode != UnsafeNclNativeMethods.ErrorCodes.ERROR_SUCCESS && statusCode != UnsafeNclNativeMethods.ErrorCodes.ERROR_IO_PENDING)
{
if (cancellationToken.IsCancellationRequested)
{
Logger.LogDebug(LoggerEventIds.FileSendAsyncCancelled, $"SendFileAsync; Write cancelled with error code: {statusCode}");
asyncResult.Cancel(ThrowWriteExceptions);
}
else if (ThrowWriteExceptions)
{
asyncResult.Dispose();
var exception = new IOException(string.Empty, new HttpSysException((int)statusCode));
Logger.LogError(LoggerEventIds.FileSendAsyncError, exception, "SendFileAsync");
Abort();
throw exception;
}
else
{
// Abort the request but do not close the stream, let future writes complete silently
Logger.LogDebug(LoggerEventIds.FileSendAsyncErrorIgnored, $"SendFileAsync; Ignored write exception: {statusCode}");
asyncResult.FailSilently();
}
}
if (statusCode == ErrorCodes.ERROR_SUCCESS && HttpSysListener.SkipIOCPCallbackOnSuccess)
{
// IO operation completed synchronously - callback won't be called to signal completion.
asyncResult.IOCompleted(statusCode, bytesSent);
}
// Last write, cache it for special cancellation handling.
if ((flags & HttpApiTypes.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_MORE_DATA) == 0)
{
_lastWrite = asyncResult;
}
return(asyncResult.Task);
}
private unsafe CancellationToken CreateDisconnectToken(ulong connectionId)
{
LogHelper.LogDebug(_logger, "CreateDisconnectToken", "Registering connection for disconnect for connection ID: " + connectionId);
// Create a nativeOverlapped callback so we can register for disconnect callback
var cts = new CancellationTokenSource();
var returnToken = cts.Token;
SafeNativeOverlapped nativeOverlapped = null;
var boundHandle = _requestQueue.BoundHandle;
nativeOverlapped = new SafeNativeOverlapped(boundHandle, boundHandle.AllocateNativeOverlapped(
(errorCode, numBytes, overlappedPtr) =>
{
LogHelper.LogDebug(_logger, "CreateDisconnectToken", "http.sys disconnect callback fired for connection ID: " + connectionId);
// Free the overlapped
nativeOverlapped.Dispose();
// Pull the token out of the list and Cancel it.
ConnectionCancellation token;
_connectionCancellationTokens.TryRemove(connectionId, out token);
try
{
cts.Cancel();
}
catch (AggregateException exception)
{
LogHelper.LogException(_logger, "CreateDisconnectToken Callback", exception);
}
},
null, null));
uint statusCode;
try
{
statusCode = HttpApi.HttpWaitForDisconnectEx(requestQueueHandle: _requestQueue.Handle,
connectionId: connectionId, reserved: 0, overlapped: nativeOverlapped);
}
catch (Win32Exception exception)
{
statusCode = (uint)exception.NativeErrorCode;
LogHelper.LogException(_logger, "CreateDisconnectToken", exception);
}
if (statusCode != UnsafeNclNativeMethods.ErrorCodes.ERROR_IO_PENDING &&
statusCode != UnsafeNclNativeMethods.ErrorCodes.ERROR_SUCCESS)
{
// We got an unknown result, assume the connection has been closed.
nativeOverlapped.Dispose();
ConnectionCancellation ignored;
_connectionCancellationTokens.TryRemove(connectionId, out ignored);
LogHelper.LogDebug(_logger, "HttpWaitForDisconnectEx", new Win32Exception((int)statusCode));
cts.Cancel();
}
if (statusCode == UnsafeNclNativeMethods.ErrorCodes.ERROR_SUCCESS && HttpSysListener.SkipIOCPCallbackOnSuccess)
{
// IO operation completed synchronously - callback won't be called to signal completion
nativeOverlapped.Dispose();
ConnectionCancellation ignored;
_connectionCancellationTokens.TryRemove(connectionId, out ignored);
cts.Cancel();
}
return(returnToken);
}
// Simpler than Flush because it will never be called at the end of the request from Dispose.
private unsafe Task FlushInternalAsync(ArraySegment <byte> data, CancellationToken cancellationToken)
{
if (_skipWrites)
{
return(Task.CompletedTask);
}
var started = _requestContext.Response.HasStarted;
if (data.Count == 0 && started)
{
// No data to send and we've already sent the headers
return(Task.CompletedTask);
}
if (cancellationToken.IsCancellationRequested)
{
Abort(ThrowWriteExceptions);
return(Task.FromCanceled <int>(cancellationToken));
}
// Make sure all validation is performed before this computes the headers
var flags = ComputeLeftToWrite(data.Count);
uint statusCode = 0;
var chunked = _requestContext.Response.BoundaryType == BoundaryType.Chunked;
var asyncResult = new ResponseStreamAsyncResult(this, data, chunked, cancellationToken);
uint bytesSent = 0;
try
{
if (!started)
{
statusCode = _requestContext.Response.SendHeaders(null, asyncResult, flags, false);
bytesSent = asyncResult.BytesSent;
}
else
{
statusCode = HttpApi.HttpSendResponseEntityBody(
RequestQueueHandle,
RequestId,
(uint)flags,
asyncResult.DataChunkCount,
asyncResult.DataChunks,
&bytesSent,
IntPtr.Zero,
0,
asyncResult.NativeOverlapped,
IntPtr.Zero);
}
}
catch (Exception e)
{
Logger.LogError(LoggerEventIds.ErrorWhenFlushAsync, e, "FlushAsync");
asyncResult.Dispose();
Abort();
throw;
}
if (statusCode != ErrorCodes.ERROR_SUCCESS && statusCode != ErrorCodes.ERROR_IO_PENDING)
{
if (cancellationToken.IsCancellationRequested)
{
Logger.LogDebug(LoggerEventIds.WriteFlushCancelled, $"FlushAsync; Write cancelled with error code: {statusCode}");
asyncResult.Cancel(ThrowWriteExceptions);
}
else if (ThrowWriteExceptions)
{
asyncResult.Dispose();
Exception exception = new IOException(string.Empty, new HttpSysException((int)statusCode));
Logger.LogError(LoggerEventIds.ErrorWhenFlushAsync, exception, "FlushAsync");
Abort();
throw exception;
}
else
{
// Abort the request but do not close the stream, let future writes complete silently
Logger.LogDebug(LoggerEventIds.WriteErrorIgnored, $"FlushAsync; Ignored write exception: {statusCode}");
asyncResult.FailSilently();
}
}
if (statusCode == ErrorCodes.ERROR_SUCCESS && HttpSysListener.SkipIOCPCallbackOnSuccess)
{
// IO operation completed synchronously - callback won't be called to signal completion.
asyncResult.IOCompleted(statusCode, bytesSent);
}
// Last write, cache it for special cancellation handling.
if ((flags & HttpApiTypes.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_MORE_DATA) == 0)
{
_lastWrite = asyncResult;
}
return(asyncResult.Task);
}
// We never expect endOfRequest and data at the same time
private unsafe void FlushInternal(bool endOfRequest, ArraySegment <byte> data = new ArraySegment <byte>())
{
Debug.Assert(!(endOfRequest && data.Count > 0), "Data is not supported at the end of the request.");
if (_skipWrites)
{
return;
}
var started = _requestContext.Response.HasStarted;
if (data.Count == 0 && started && !endOfRequest)
{
// No data to send and we've already sent the headers
return;
}
// Make sure all validation is performed before this computes the headers
var flags = ComputeLeftToWrite(data.Count, endOfRequest);
if (endOfRequest && _leftToWrite > 0)
{
if (!RequestContext.DisconnectToken.IsCancellationRequested)
{
// This is logged rather than thrown because it is too late for an exception to be visible in user code.
Logger.LogError(LoggerEventIds.FewerBytesThanExpected, "ResponseStream::Dispose; Fewer bytes were written than were specified in the Content-Length.");
}
_requestContext.Abort();
return;
}
uint statusCode = 0;
HttpApiTypes.HTTP_DATA_CHUNK[] dataChunks;
var pinnedBuffers = PinDataBuffers(endOfRequest, data, out dataChunks);
try
{
if (!started)
{
statusCode = _requestContext.Response.SendHeaders(dataChunks, null, flags, false);
}
else
{
fixed(HttpApiTypes.HTTP_DATA_CHUNK *pDataChunks = dataChunks)
{
statusCode = HttpApi.HttpSendResponseEntityBody(
RequestQueueHandle,
RequestId,
(uint)flags,
(ushort)dataChunks.Length,
pDataChunks,
null,
IntPtr.Zero,
0,
SafeNativeOverlapped.Zero,
IntPtr.Zero);
}
}
}
finally
{
FreeDataBuffers(pinnedBuffers);
}
if (statusCode != ErrorCodes.ERROR_SUCCESS && statusCode != ErrorCodes.ERROR_HANDLE_EOF
// Don't throw for disconnects, we were already finished with the response.
&& (!endOfRequest || (statusCode != ErrorCodes.ERROR_CONNECTION_INVALID && statusCode != ErrorCodes.ERROR_INVALID_PARAMETER)))
{
if (ThrowWriteExceptions)
{
var exception = new IOException(string.Empty, new HttpSysException((int)statusCode));
Logger.LogError(LoggerEventIds.WriteError, exception, "Flush");
Abort();
throw exception;
}
else
{
// Abort the request but do not close the stream, let future writes complete silently
Logger.LogDebug(LoggerEventIds.WriteErrorIgnored, $"Flush; Ignored write exception: {statusCode}");
Abort(dispose: false);
}
}
}
internal static unsafe ChannelBinding?GetChannelBindingFromTls(RequestQueue requestQueue, ulong connectionId, ILogger logger)
{
// +128 since a CBT is usually <128 thus we need to call HRCC just once. If the CBT
// is >128 we will get ERROR_MORE_DATA and call again
int size = RequestChannelBindStatusSize + 128;
Debug.Assert(size >= 0);
byte[]? blob = null;
SafeLocalFreeChannelBinding?token = null;
uint bytesReceived = 0;;
uint statusCode;
do
{
blob = new byte[size];
fixed(byte *blobPtr = blob)
{
// Http.sys team: ServiceName will always be null if
// HTTP_RECEIVE_SECURE_CHANNEL_TOKEN flag is set.
statusCode = HttpApi.HttpReceiveClientCertificate(
requestQueue.Handle,
connectionId,
(uint)HttpApiTypes.HTTP_FLAGS.HTTP_RECEIVE_SECURE_CHANNEL_TOKEN,
blobPtr,
(uint)size,
&bytesReceived,
SafeNativeOverlapped.Zero);
if (statusCode == UnsafeNclNativeMethods.ErrorCodes.ERROR_SUCCESS)
{
int tokenOffset = GetTokenOffsetFromBlob((IntPtr)blobPtr);
int tokenSize = GetTokenSizeFromBlob((IntPtr)blobPtr);
Debug.Assert(tokenSize < Int32.MaxValue);
token = SafeLocalFreeChannelBinding.LocalAlloc(tokenSize);
Marshal.Copy(blob, tokenOffset, token.DangerousGetHandle(), tokenSize);
}
else if (statusCode == UnsafeNclNativeMethods.ErrorCodes.ERROR_MORE_DATA)
{
int tokenSize = GetTokenSizeFromBlob((IntPtr)blobPtr);
Debug.Assert(tokenSize < Int32.MaxValue);
size = RequestChannelBindStatusSize + tokenSize;
}
else if (statusCode == UnsafeNclNativeMethods.ErrorCodes.ERROR_INVALID_PARAMETER)
{
logger.LogError(LoggerEventIds.ChannelBindingUnSupported, "GetChannelBindingFromTls; Channel binding is not supported.");
return(null); // old schannel library which doesn't support CBT
}
else
{
// It's up to the consumer to fail if the missing ChannelBinding matters to them.
logger.LogError(LoggerEventIds.ChannelBindingMissing, new HttpSysException((int)statusCode), "GetChannelBindingFromTls");
break;
}
}
}while (statusCode != UnsafeNclNativeMethods.ErrorCodes.ERROR_SUCCESS);
return(token);
}
private static unsafe void IOCompleted(ClientCertLoader asyncResult, uint errorCode, uint numBytes)
{
RequestContext requestContext = asyncResult.RequestContext;
try
{
if (errorCode == UnsafeNclNativeMethods.ErrorCodes.ERROR_MORE_DATA)
{
// There is a bug that has existed in http.sys since w2k3. Bytesreceived will only
// return the size of the initial cert structure. To get the full size,
// we need to add the certificate encoding size as well.
HttpApiTypes.HTTP_SSL_CLIENT_CERT_INFO *pClientCertInfo = asyncResult.RequestBlob;
asyncResult.Reset(numBytes + pClientCertInfo->CertEncodedSize);
uint bytesReceived = 0;
errorCode =
HttpApi.HttpReceiveClientCertificate(
requestContext.Server.RequestQueue.Handle,
requestContext.Request.UConnectionId,
(uint)HttpApiTypes.HTTP_FLAGS.NONE,
asyncResult._memoryBlob,
asyncResult._size,
&bytesReceived,
asyncResult._overlapped !);
if (errorCode == UnsafeNclNativeMethods.ErrorCodes.ERROR_IO_PENDING ||
(errorCode == UnsafeNclNativeMethods.ErrorCodes.ERROR_SUCCESS && !HttpSysListener.SkipIOCPCallbackOnSuccess))
{
return;
}
}
if (errorCode == UnsafeNclNativeMethods.ErrorCodes.ERROR_NOT_FOUND)
{
// The client did not send a cert.
asyncResult.Complete(0, null);
}
else if (errorCode != UnsafeNclNativeMethods.ErrorCodes.ERROR_SUCCESS)
{
asyncResult.Fail(new HttpSysException((int)errorCode));
}
else
{
HttpApiTypes.HTTP_SSL_CLIENT_CERT_INFO *pClientCertInfo = asyncResult._memoryBlob;
if (pClientCertInfo == null)
{
asyncResult.Complete(0, null);
}
else
{
if (pClientCertInfo->pCertEncoded != null)
{
try
{
byte[] certEncoded = new byte[pClientCertInfo->CertEncodedSize];
Marshal.Copy((IntPtr)pClientCertInfo->pCertEncoded, certEncoded, 0, certEncoded.Length);
asyncResult.Complete((int)pClientCertInfo->CertFlags, new X509Certificate2(certEncoded));
}
catch (CryptographicException exception)
{
// TODO: Log
asyncResult.Fail(exception);
}
catch (SecurityException exception)
{
// TODO: Log
asyncResult.Fail(exception);
}
}
}
}
}
catch (Exception exception)
{
asyncResult.Fail(exception);
}
}
internal RequestQueue(UrlGroup urlGroup, string requestQueueName, RequestQueueMode mode, ILogger logger)
{
_mode = mode;
_urlGroup = urlGroup;
_logger = logger;
var flags = HttpApiTypes.HTTP_CREATE_REQUEST_QUEUE_FLAG.None;
Created = true;
if (_mode == RequestQueueMode.Attach)
{
flags = HttpApiTypes.HTTP_CREATE_REQUEST_QUEUE_FLAG.OpenExisting;
Created = false;
}
var statusCode = HttpApi.HttpCreateRequestQueue(
HttpApi.Version,
requestQueueName,
null,
flags,
out var requestQueueHandle);
if (_mode == RequestQueueMode.CreateOrAttach && statusCode == UnsafeNclNativeMethods.ErrorCodes.ERROR_ALREADY_EXISTS)
{
// Tried to create, but it already exists so attach to it instead.
Created = false;
flags = HttpApiTypes.HTTP_CREATE_REQUEST_QUEUE_FLAG.OpenExisting;
statusCode = HttpApi.HttpCreateRequestQueue(
HttpApi.Version,
requestQueueName,
null,
flags,
out requestQueueHandle);
}
if (flags == HttpApiTypes.HTTP_CREATE_REQUEST_QUEUE_FLAG.OpenExisting && statusCode == UnsafeNclNativeMethods.ErrorCodes.ERROR_FILE_NOT_FOUND)
{
throw new HttpSysException((int)statusCode, $"Failed to attach to the given request queue '{requestQueueName}', the queue could not be found.");
}
else if (statusCode == UnsafeNclNativeMethods.ErrorCodes.ERROR_INVALID_NAME)
{
throw new HttpSysException((int)statusCode, $"The given request queue name '{requestQueueName}' is invalid.");
}
else if (statusCode != UnsafeNclNativeMethods.ErrorCodes.ERROR_SUCCESS)
{
throw new HttpSysException((int)statusCode);
}
// Disabling callbacks when IO operation completes synchronously (returns ErrorCodes.ERROR_SUCCESS)
if (HttpSysListener.SkipIOCPCallbackOnSuccess &&
!UnsafeNclNativeMethods.SetFileCompletionNotificationModes(
requestQueueHandle,
UnsafeNclNativeMethods.FileCompletionNotificationModes.SkipCompletionPortOnSuccess |
UnsafeNclNativeMethods.FileCompletionNotificationModes.SkipSetEventOnHandle))
{
requestQueueHandle.Dispose();
throw new HttpSysException(Marshal.GetLastWin32Error());
}
Handle = requestQueueHandle;
BoundHandle = ThreadPoolBoundHandle.BindHandle(Handle);
if (!Created)
{
_logger.LogInformation(LoggerEventIds.AttachedToQueue, "Attached to an existing request queue '{requestQueueName}', some options do not apply.", requestQueueName);
}
}