public override IAsyncResult BeginWrite(byte[] buffer, int offset, int size, AsyncCallback callback, object state)
{
if (NetEventSource.IsEnabled) NetEventSource.Info(this, "buffer.Length:" + buffer.Length + " size:" + size + " offset:" + offset);
if (buffer == null)
{
throw new ArgumentNullException(nameof(buffer));
}
if (offset < 0 || offset > buffer.Length)
{
throw new ArgumentOutOfRangeException(nameof(offset));
}
if (size < 0 || size > buffer.Length - offset)
{
throw new ArgumentOutOfRangeException(nameof(size));
}
Interop.HttpApi.HTTP_FLAGS flags = ComputeLeftToWrite();
if (_closed || (size == 0 && _leftToWrite != 0))
{
if (NetEventSource.IsEnabled) NetEventSource.Exit(this);
HttpResponseStreamAsyncResult result = new HttpResponseStreamAsyncResult(this, state, callback);
result.InvokeCallback((uint)0);
return result;
}
if (_leftToWrite >= 0 && size > _leftToWrite)
{
throw new ProtocolViolationException(SR.net_entitytoobig);
}
uint statusCode;
uint bytesSent = 0;
flags |= _leftToWrite == size ? Interop.HttpApi.HTTP_FLAGS.NONE : Interop.HttpApi.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_MORE_DATA;
bool sentHeaders = _httpContext.Response.SentHeaders;
HttpResponseStreamAsyncResult asyncResult = new HttpResponseStreamAsyncResult(this, state, callback, buffer, offset, size, _httpContext.Response.BoundaryType == BoundaryType.Chunked, sentHeaders, _httpContext.RequestQueueBoundHandle);
// Update m_LeftToWrite now so we can queue up additional BeginWrite's without waiting for EndWrite.
UpdateAfterWrite((uint)((_httpContext.Response.BoundaryType == BoundaryType.Chunked) ? 0 : size));
try
{
if (!sentHeaders)
{
statusCode = _httpContext.Response.SendHeaders(null, asyncResult, flags, false);
}
else
{
if (NetEventSource.IsEnabled) NetEventSource.Info(this, "Calling Interop.HttpApi.HttpSendResponseEntityBody");
statusCode =
Interop.HttpApi.HttpSendResponseEntityBody(
_httpContext.RequestQueueHandle,
_httpContext.RequestId,
(uint)flags,
asyncResult.dataChunkCount,
asyncResult.pDataChunks,
&bytesSent,
SafeLocalAllocHandle.Zero,
0,
asyncResult._pOverlapped,
null);
if (NetEventSource.IsEnabled) NetEventSource.Info(this, "Call to Interop.HttpApi.HttpSendResponseEntityBody returned:" + statusCode);
}
}
catch (Exception e)
{
if (NetEventSource.IsEnabled) NetEventSource.Error(this, e.ToString());
asyncResult.InternalCleanup();
_closed = true;
_httpContext.Abort();
throw;
}
if (statusCode != Interop.HttpApi.ERROR_SUCCESS && statusCode != Interop.HttpApi.ERROR_IO_PENDING)
{
asyncResult.InternalCleanup();
if (_httpContext.Listener.IgnoreWriteExceptions && sentHeaders)
{
if (NetEventSource.IsEnabled) NetEventSource.Info(this, "BeginWrite() Suppressing error");
}
else
{
Exception exception = new HttpListenerException((int)statusCode);
if (NetEventSource.IsEnabled) NetEventSource.Error(this, exception.ToString());
_closed = true;
_httpContext.Abort();
throw exception;
}
}
if (statusCode == Interop.HttpApi.ERROR_SUCCESS && HttpListener.SkipIOCPCallbackOnSuccess)
{
// IO operation completed synchronously - callback won't be called to signal completion.
asyncResult.IOCompleted(statusCode, bytesSent);
}
// Last write, cache it for special cancelation handling.
if ((flags & Interop.HttpApi.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_MORE_DATA) == 0)
{
_lastWrite = asyncResult;
}
if (NetEventSource.IsEnabled) NetEventSource.Exit(this);
return asyncResult;
}
private IAsyncResult BeginWriteCore(byte[] buffer, int offset, int size, AsyncCallback?callback, object?state)
{
Interop.HttpApi.HTTP_FLAGS flags = ComputeLeftToWrite();
if (_closed || (size == 0 && _leftToWrite != 0))
{
HttpResponseStreamAsyncResult result = new HttpResponseStreamAsyncResult(this, state, callback);
result.InvokeCallback((uint)0);
return(result);
}
if (_leftToWrite >= 0 && size > _leftToWrite)
{
throw new ProtocolViolationException(SR.net_entitytoobig);
}
uint statusCode;
uint bytesSent = 0;
flags |= _leftToWrite == size ? Interop.HttpApi.HTTP_FLAGS.NONE : Interop.HttpApi.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_MORE_DATA;
bool sentHeaders = _httpContext.Response.SentHeaders;
HttpResponseStreamAsyncResult asyncResult = new HttpResponseStreamAsyncResult(this, state, callback, buffer, offset, size, _httpContext.Response.BoundaryType == BoundaryType.Chunked, sentHeaders, _httpContext.RequestQueueBoundHandle);
// Update m_LeftToWrite now so we can queue up additional BeginWrite's without waiting for EndWrite.
UpdateAfterWrite((uint)((_httpContext.Response.BoundaryType == BoundaryType.Chunked) ? 0 : size));
try
{
if (!sentHeaders)
{
statusCode = _httpContext.Response.SendHeaders(null, asyncResult, flags, false);
}
else
{
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Info(this, "Calling Interop.HttpApi.HttpSendResponseEntityBody");
}
statusCode =
Interop.HttpApi.HttpSendResponseEntityBody(
_httpContext.RequestQueueHandle,
_httpContext.RequestId,
(uint)flags,
asyncResult.dataChunkCount,
asyncResult.pDataChunks,
&bytesSent,
SafeLocalAllocHandle.Zero,
0,
asyncResult._pOverlapped,
null);
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Info(this, "Call to Interop.HttpApi.HttpSendResponseEntityBody returned:" + statusCode);
}
}
}
catch (Exception e)
{
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Error(this, e.ToString());
}
asyncResult.InternalCleanup();
_closed = true;
_httpContext.Abort();
throw;
}
if (statusCode != Interop.HttpApi.ERROR_SUCCESS && statusCode != Interop.HttpApi.ERROR_IO_PENDING)
{
asyncResult.InternalCleanup();
if (_httpContext.Listener !.IgnoreWriteExceptions && sentHeaders)
{
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Info(this, "BeginWrite() Suppressing error");
}
}
else
{
Exception exception = new HttpListenerException((int)statusCode);
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Error(this, exception.ToString());
}
_closed = true;
_httpContext.Abort();
throw exception;
}
}
public override IAsyncResult BeginWrite(byte[] buffer, int offset, int size, AsyncCallback callback, object state)
{
if (NetEventSource.IsEnabled)
{
NetEventSource.Info(this, "buffer.Length:" + buffer.Length + " size:" + size + " offset:" + offset);
}
if (buffer == null)
{
throw new ArgumentNullException(nameof(buffer));
}
if (offset < 0 || offset > buffer.Length)
{
throw new ArgumentOutOfRangeException(nameof(offset));
}
if (size < 0 || size > buffer.Length - offset)
{
throw new ArgumentOutOfRangeException(nameof(size));
}
Interop.HttpApi.HTTP_FLAGS flags = ComputeLeftToWrite();
if (_closed || (size == 0 && _leftToWrite != 0))
{
if (NetEventSource.IsEnabled)
{
NetEventSource.Exit(this);
}
HttpResponseStreamAsyncResult result = new HttpResponseStreamAsyncResult(this, state, callback);
result.InvokeCallback((uint)0);
return(result);
}
if (_leftToWrite >= 0 && size > _leftToWrite)
{
throw new ProtocolViolationException(SR.net_entitytoobig);
}
uint statusCode;
uint bytesSent = 0;
flags |= _leftToWrite == size ? Interop.HttpApi.HTTP_FLAGS.NONE : Interop.HttpApi.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_MORE_DATA;
bool sentHeaders = _httpContext.Response.SentHeaders;
HttpResponseStreamAsyncResult asyncResult = new HttpResponseStreamAsyncResult(this, state, callback, buffer, offset, size, _httpContext.Response.BoundaryType == BoundaryType.Chunked, sentHeaders, _httpContext.RequestQueueBoundHandle);
// Update m_LeftToWrite now so we can queue up additional BeginWrite's without waiting for EndWrite.
UpdateAfterWrite((uint)((_httpContext.Response.BoundaryType == BoundaryType.Chunked) ? 0 : size));
try
{
if (!sentHeaders)
{
statusCode = _httpContext.Response.SendHeaders(null, asyncResult, flags, false);
}
else
{
if (NetEventSource.IsEnabled)
{
NetEventSource.Info(this, "Calling Interop.HttpApi.HttpSendResponseEntityBody");
}
statusCode =
Interop.HttpApi.HttpSendResponseEntityBody(
_httpContext.RequestQueueHandle,
_httpContext.RequestId,
(uint)flags,
asyncResult.dataChunkCount,
asyncResult.pDataChunks,
&bytesSent,
SafeLocalAllocHandle.Zero,
0,
asyncResult._pOverlapped,
null);
if (NetEventSource.IsEnabled)
{
NetEventSource.Info(this, "Call to Interop.HttpApi.HttpSendResponseEntityBody returned:" + statusCode);
}
}
}
catch (Exception e)
{
if (NetEventSource.IsEnabled)
{
NetEventSource.Error(this, e.ToString());
}
asyncResult.InternalCleanup();
_closed = true;
_httpContext.Abort();
throw;
}
if (statusCode != Interop.HttpApi.ERROR_SUCCESS && statusCode != Interop.HttpApi.ERROR_IO_PENDING)
{
asyncResult.InternalCleanup();
if (_httpContext.Listener.IgnoreWriteExceptions && sentHeaders)
{
if (NetEventSource.IsEnabled)
{
NetEventSource.Info(this, "BeginWrite() Suppressing error");
}
}
else
{
Exception exception = new HttpListenerException((int)statusCode);
if (NetEventSource.IsEnabled)
{
NetEventSource.Error(this, exception.ToString());
}
_closed = true;
_httpContext.Abort();
throw exception;
}
}
if (statusCode == Interop.HttpApi.ERROR_SUCCESS && HttpListener.SkipIOCPCallbackOnSuccess)
{
// IO operation completed synchronously - callback won't be called to signal completion.
asyncResult.IOCompleted(statusCode, bytesSent);
}
// Last write, cache it for special cancelation handling.
if ((flags & Interop.HttpApi.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_MORE_DATA) == 0)
{
_lastWrite = asyncResult;
}
if (NetEventSource.IsEnabled)
{
NetEventSource.Exit(this);
}
return(asyncResult);
}
public override IAsyncResult BeginWrite(byte[] buffer, int offset, int size, AsyncCallback callback, object state)
{
GlobalLog.Print("HttpResponseStream#" + ValidationHelper.HashString(this) + "::BeginWrite() buffer.Length:" + buffer.Length + " size:" + size + " offset:" + offset);
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
if (offset < 0 || offset > buffer.Length)
{
throw new ArgumentOutOfRangeException("offset");
}
if (size < 0 || size > buffer.Length - offset)
{
throw new ArgumentOutOfRangeException("size");
}
UnsafeNclNativeMethods.HttpApi.HTTP_FLAGS flags = ComputeLeftToWrite();
if (m_Closed || (size == 0 && m_LeftToWrite != 0))
{
if (Logging.On)
{
Logging.Exit(Logging.HttpListener, this, "BeginWrite", "");
}
HttpResponseStreamAsyncResult result = new HttpResponseStreamAsyncResult(this, state, callback);
result.InvokeCallback((uint)0);
return(result);
}
if (m_LeftToWrite >= 0 && size > m_LeftToWrite)
{
throw new ProtocolViolationException(SR.GetString(SR.net_entitytoobig));
}
uint statusCode;
uint bytesSent = 0;
flags |= m_LeftToWrite == size ? UnsafeNclNativeMethods.HttpApi.HTTP_FLAGS.NONE : UnsafeNclNativeMethods.HttpApi.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_MORE_DATA;
bool sentHeaders = m_HttpContext.Response.SentHeaders;
HttpResponseStreamAsyncResult asyncResult = new HttpResponseStreamAsyncResult(this, state, callback, buffer, offset, size, m_HttpContext.Response.BoundaryType == BoundaryType.Chunked, sentHeaders);
// Update m_LeftToWrite now so we can queue up additional BeginWrite's without waiting for EndWrite.
UpdateAfterWrite((uint)((m_HttpContext.Response.BoundaryType == BoundaryType.Chunked) ? 0 : size));
try {
if (!sentHeaders)
{
statusCode = m_HttpContext.Response.SendHeaders(null, asyncResult, flags, false);
}
else
{
GlobalLog.Print("HttpResponseStream#" + ValidationHelper.HashString(this) + "::BeginWrite() calling UnsafeNclNativeMethods.HttpApi.HttpSendResponseEntityBody");
m_HttpContext.EnsureBoundHandle();
statusCode =
UnsafeNclNativeMethods.HttpApi.HttpSendResponseEntityBody(
m_HttpContext.RequestQueueHandle,
m_HttpContext.RequestId,
(uint)flags,
asyncResult.dataChunkCount,
asyncResult.pDataChunks,
&bytesSent,
SafeLocalFree.Zero,
0,
asyncResult.m_pOverlapped,
null);
GlobalLog.Print("HttpResponseStream#" + ValidationHelper.HashString(this) + "::BeginWrite() call to UnsafeNclNativeMethods.HttpApi.HttpSendResponseEntityBody returned:" + statusCode);
}
}
catch (Exception e) {
if (Logging.On)
{
Logging.Exception(Logging.HttpListener, this, "BeginWrite", e);
}
asyncResult.InternalCleanup();
m_Closed = true;
m_HttpContext.Abort();
throw;
}
if (statusCode != UnsafeNclNativeMethods.ErrorCodes.ERROR_SUCCESS && statusCode != UnsafeNclNativeMethods.ErrorCodes.ERROR_IO_PENDING)
{
asyncResult.InternalCleanup();
if (m_HttpContext.Listener.IgnoreWriteExceptions && sentHeaders)
{
GlobalLog.Print("HttpResponseStream#" + ValidationHelper.HashString(this) + "::BeginWrite() suppressing error");
}
else
{
Exception exception = new HttpListenerException((int)statusCode);
if (Logging.On)
{
Logging.Exception(Logging.HttpListener, this, "BeginWrite", exception);
}
m_Closed = true;
m_HttpContext.Abort();
throw exception;
}
}
if (statusCode == UnsafeNclNativeMethods.ErrorCodes.ERROR_SUCCESS && HttpListener.SkipIOCPCallbackOnSuccess)
{
// IO operation completed synchronously - callback won't be called to signal completion.
asyncResult.IOCompleted(statusCode, bytesSent);
}
// Last write, cache it for special cancelation handling.
if ((flags & UnsafeNclNativeMethods.HttpApi.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_MORE_DATA) == 0)
{
m_LastWrite = asyncResult;
}
if (Logging.On)
{
Logging.Exit(Logging.HttpListener, this, "BeginWrite", "");
}
return(asyncResult);
}
public override IAsyncResult BeginWrite(byte[] buffer, int offset, int size, AsyncCallback callback, object state) {
GlobalLog.Print("HttpResponseStream#" + ValidationHelper.HashString(this) + "::BeginWrite() buffer.Length:" + buffer.Length + " size:" + size + " offset:" + offset);
if (buffer==null) {
throw new ArgumentNullException("buffer");
}
if (offset<0 || offset>buffer.Length) {
throw new ArgumentOutOfRangeException("offset");
}
if (size<0 || size>buffer.Length-offset) {
throw new ArgumentOutOfRangeException("size");
}
UnsafeNclNativeMethods.HttpApi.HTTP_FLAGS flags = ComputeLeftToWrite();
if (m_Closed || (size == 0 && m_LeftToWrite != 0)) {
if(Logging.On)Logging.Exit(Logging.HttpListener, this, "BeginWrite", "");
HttpResponseStreamAsyncResult result = new HttpResponseStreamAsyncResult(this, state, callback);
result.InvokeCallback((uint) 0);
return result;
}
if (m_LeftToWrite>=0 && size>m_LeftToWrite) {
throw new ProtocolViolationException(SR.GetString(SR.net_entitytoobig));
}
uint statusCode;
uint bytesSent = 0;
flags |= m_LeftToWrite==size ? UnsafeNclNativeMethods.HttpApi.HTTP_FLAGS.NONE : UnsafeNclNativeMethods.HttpApi.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_MORE_DATA;
bool sentHeaders = m_HttpContext.Response.SentHeaders;
HttpResponseStreamAsyncResult asyncResult = new HttpResponseStreamAsyncResult(this, state, callback, buffer, offset, size, m_HttpContext.Response.BoundaryType==BoundaryType.Chunked, sentHeaders);
// Update m_LeftToWrite now so we can queue up additional BeginWrite's without waiting for EndWrite.
UpdateAfterWrite((uint)((m_HttpContext.Response.BoundaryType == BoundaryType.Chunked) ? 0 : size));
try {
if (!sentHeaders) {
statusCode = m_HttpContext.Response.SendHeaders(null, asyncResult, flags, false);
}
else {
GlobalLog.Print("HttpResponseStream#" + ValidationHelper.HashString(this) + "::BeginWrite() calling UnsafeNclNativeMethods.HttpApi.HttpSendResponseEntityBody");
m_HttpContext.EnsureBoundHandle();
statusCode =
UnsafeNclNativeMethods.HttpApi.HttpSendResponseEntityBody(
m_HttpContext.RequestQueueHandle,
m_HttpContext.RequestId,
(uint)flags,
asyncResult.dataChunkCount,
asyncResult.pDataChunks,
&bytesSent,
SafeLocalFree.Zero,
0,
asyncResult.m_pOverlapped,
null);
GlobalLog.Print("HttpResponseStream#" + ValidationHelper.HashString(this) + "::BeginWrite() call to UnsafeNclNativeMethods.HttpApi.HttpSendResponseEntityBody returned:" + statusCode);
}
}
catch (Exception e) {
if (Logging.On) Logging.Exception(Logging.HttpListener, this, "BeginWrite", e);
asyncResult.InternalCleanup();
m_Closed = true;
m_HttpContext.Abort();
throw;
}
if (statusCode != UnsafeNclNativeMethods.ErrorCodes.ERROR_SUCCESS && statusCode != UnsafeNclNativeMethods.ErrorCodes.ERROR_IO_PENDING) {
asyncResult.InternalCleanup();
if (m_HttpContext.Listener.IgnoreWriteExceptions && sentHeaders) {
GlobalLog.Print("HttpResponseStream#" + ValidationHelper.HashString(this) + "::BeginWrite() suppressing error");
}
else {
Exception exception = new HttpListenerException((int)statusCode);
if (Logging.On) Logging.Exception(Logging.HttpListener, this, "BeginWrite", exception);
m_Closed = true;
m_HttpContext.Abort();
throw exception;
}
}
if (statusCode == UnsafeNclNativeMethods.ErrorCodes.ERROR_SUCCESS && HttpListener.SkipIOCPCallbackOnSuccess)
{
// IO operation completed synchronously - callback won't be called to signal completion.
asyncResult.IOCompleted(statusCode, bytesSent);
}
// Last write, cache it for special cancelation handling.
if ((flags & UnsafeNclNativeMethods.HttpApi.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_MORE_DATA) == 0)
{
m_LastWrite = asyncResult;
}
if(Logging.On)Logging.Exit(Logging.HttpListener, this, "BeginWrite", "");
return asyncResult;
}
public override unsafe IAsyncResult BeginWrite(byte[] buffer, int offset, int size, AsyncCallback callback, object state)
{
uint num;
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
if ((offset < 0) || (offset > buffer.Length))
{
throw new ArgumentOutOfRangeException("offset");
}
if ((size < 0) || (size > (buffer.Length - offset)))
{
throw new ArgumentOutOfRangeException("size");
}
UnsafeNclNativeMethods.HttpApi.HTTP_FLAGS flags = this.ComputeLeftToWrite();
if (this.m_Closed || ((size == 0) && (this.m_LeftToWrite != 0L)))
{
if (Logging.On)
{
Logging.Exit(Logging.HttpListener, this, "BeginWrite", "");
}
HttpResponseStreamAsyncResult result = new HttpResponseStreamAsyncResult(this, state, callback);
result.InvokeCallback(0);
return result;
}
if ((this.m_LeftToWrite >= 0L) && (size > this.m_LeftToWrite))
{
throw new ProtocolViolationException(SR.GetString("net_entitytoobig"));
}
flags |= (this.m_LeftToWrite == size) ? UnsafeNclNativeMethods.HttpApi.HTTP_FLAGS.NONE : UnsafeNclNativeMethods.HttpApi.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_MORE_DATA;
bool sentHeaders = this.m_HttpContext.Response.SentHeaders;
HttpResponseStreamAsyncResult asyncResult = new HttpResponseStreamAsyncResult(this, state, callback, buffer, offset, size, this.m_HttpContext.Response.BoundaryType == BoundaryType.Chunked, sentHeaders);
try
{
if (!sentHeaders)
{
num = this.m_HttpContext.Response.SendHeaders(null, asyncResult, flags);
}
else
{
this.m_HttpContext.EnsureBoundHandle();
num = UnsafeNclNativeMethods.HttpApi.HttpSendResponseEntityBody(this.m_HttpContext.RequestQueueHandle, this.m_HttpContext.RequestId, (uint) flags, asyncResult.dataChunkCount, asyncResult.pDataChunks, null, SafeLocalFree.Zero, 0, asyncResult.m_pOverlapped, null);
}
}
catch (Exception exception)
{
if (Logging.On)
{
Logging.Exception(Logging.HttpListener, this, "BeginWrite", exception);
}
asyncResult.InternalCleanup();
this.m_HttpContext.Abort();
throw;
}
switch (num)
{
case 0:
case 0x3e5:
break;
default:
asyncResult.InternalCleanup();
if (!this.m_HttpContext.Listener.IgnoreWriteExceptions || !sentHeaders)
{
Exception e = new HttpListenerException((int) num);
if (Logging.On)
{
Logging.Exception(Logging.HttpListener, this, "BeginWrite", e);
}
this.m_HttpContext.Abort();
throw e;
}
break;
}
if (Logging.On)
{
Logging.Exit(Logging.HttpListener, this, "BeginWrite", "");
}
return asyncResult;
}
public override unsafe IAsyncResult BeginWrite(byte[] buffer, int offset, int size, AsyncCallback callback, object state)
{
uint num;
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
if ((offset < 0) || (offset > buffer.Length))
{
throw new ArgumentOutOfRangeException("offset");
}
if ((size < 0) || (size > (buffer.Length - offset)))
{
throw new ArgumentOutOfRangeException("size");
}
UnsafeNclNativeMethods.HttpApi.HTTP_FLAGS flags = this.ComputeLeftToWrite();
if (this.m_Closed || ((size == 0) && (this.m_LeftToWrite != 0L)))
{
if (Logging.On)
{
Logging.Exit(Logging.HttpListener, this, "BeginWrite", "");
}
HttpResponseStreamAsyncResult result = new HttpResponseStreamAsyncResult(this, state, callback);
result.InvokeCallback(0);
return(result);
}
if ((this.m_LeftToWrite >= 0L) && (size > this.m_LeftToWrite))
{
throw new ProtocolViolationException(SR.GetString("net_entitytoobig"));
}
flags |= (this.m_LeftToWrite == size) ? UnsafeNclNativeMethods.HttpApi.HTTP_FLAGS.NONE : UnsafeNclNativeMethods.HttpApi.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_MORE_DATA;
bool sentHeaders = this.m_HttpContext.Response.SentHeaders;
HttpResponseStreamAsyncResult asyncResult = new HttpResponseStreamAsyncResult(this, state, callback, buffer, offset, size, this.m_HttpContext.Response.BoundaryType == BoundaryType.Chunked, sentHeaders);
try
{
if (!sentHeaders)
{
num = this.m_HttpContext.Response.SendHeaders(null, asyncResult, flags);
}
else
{
this.m_HttpContext.EnsureBoundHandle();
num = UnsafeNclNativeMethods.HttpApi.HttpSendResponseEntityBody(this.m_HttpContext.RequestQueueHandle, this.m_HttpContext.RequestId, (uint)flags, asyncResult.dataChunkCount, asyncResult.pDataChunks, null, SafeLocalFree.Zero, 0, asyncResult.m_pOverlapped, null);
}
}
catch (Exception exception)
{
if (Logging.On)
{
Logging.Exception(Logging.HttpListener, this, "BeginWrite", exception);
}
asyncResult.InternalCleanup();
this.m_HttpContext.Abort();
throw;
}
switch (num)
{
case 0:
case 0x3e5:
break;
default:
asyncResult.InternalCleanup();
if (!this.m_HttpContext.Listener.IgnoreWriteExceptions || !sentHeaders)
{
Exception e = new HttpListenerException((int)num);
if (Logging.On)
{
Logging.Exception(Logging.HttpListener, this, "BeginWrite", e);
}
this.m_HttpContext.Abort();
throw e;
}
break;
}
if (Logging.On)
{
Logging.Exit(Logging.HttpListener, this, "BeginWrite", "");
}
return(asyncResult);
}
