private unsafe void UpdateDataChunk()
{
if (_dataChunks == null)
{
_dataChunks = new Interop.HttpApi.HTTP_DATA_CHUNK[2];
_dataChunksGCHandle = GCHandle.Alloc(_dataChunks, GCHandleType.Pinned);
_dataChunks[0] = new Interop.HttpApi.HTTP_DATA_CHUNK();
_dataChunks[0].DataChunkType = Interop.HttpApi.HTTP_DATA_CHUNK_TYPE.HttpDataChunkFromMemory;
_dataChunks[1] = new Interop.HttpApi.HTTP_DATA_CHUNK();
_dataChunks[1].DataChunkType = Interop.HttpApi.HTTP_DATA_CHUNK_TYPE.HttpDataChunkFromMemory;
}
Debug.Assert(_buffer == null || _bufferList == null, "Either 'm_Buffer' or 'm_BufferList' MUST be NULL.");
Debug.Assert(_shouldCloseOutput || _buffer != null || _bufferList != null, "Either 'm_Buffer' or 'm_BufferList' MUST NOT be NULL.");
// The underlying byte[] m_Buffer or each m_BufferList[].Array are pinned already
if (_buffer != null)
{
UpdateDataChunk(0, _buffer, _offset, _count);
UpdateDataChunk(1, null, 0, 0);
_dataChunkCount = 1;
}
else if (_bufferList != null)
{
Debug.Assert(_bufferList != null && _bufferList.Count == 2,
"'m_BufferList' MUST NOT be NULL and have exactly '2' items at this point.");
UpdateDataChunk(0, _bufferList[0].Array, _bufferList[0].Offset, _bufferList[0].Count);
UpdateDataChunk(1, _bufferList[1].Array, _bufferList[1].Offset, _bufferList[1].Count);
_dataChunkCount = 2;
}
else
{
Debug.Assert(_shouldCloseOutput, "'m_ShouldCloseOutput' MUST be 'true' at this point.");
_dataChunks = null;
}
}
private void WriteCore(byte[] buffer, int offset, int size)
{
Interop.HttpApi.HTTP_FLAGS flags = ComputeLeftToWrite();
if (size == 0 && _leftToWrite != 0)
{
return;
}
if (_leftToWrite >= 0 && size > _leftToWrite)
{
throw new ProtocolViolationException(SR.net_entitytoobig);
}
uint statusCode;
uint dataToWrite = (uint)size;
SafeLocalAllocHandle?bufferAsIntPtr = null;
IntPtr pBufferAsIntPtr = IntPtr.Zero;
bool sentHeaders = _httpContext.Response.SentHeaders;
try
{
if (size == 0)
{
statusCode = _httpContext.Response.SendHeaders(null, null, flags, false);
}
else
{
fixed(byte *pDataBuffer = buffer)
{
byte *pBuffer = pDataBuffer;
if (_httpContext.Response.BoundaryType == BoundaryType.Chunked)
{
string chunkHeader = size.ToString("x", CultureInfo.InvariantCulture);
dataToWrite = dataToWrite + (uint)(chunkHeader.Length + 4);
bufferAsIntPtr = SafeLocalAllocHandle.LocalAlloc((int)dataToWrite);
pBufferAsIntPtr = bufferAsIntPtr.DangerousGetHandle();
for (int i = 0; i < chunkHeader.Length; i++)
{
Marshal.WriteByte(pBufferAsIntPtr, i, (byte)chunkHeader[i]);
}
Marshal.WriteInt16(pBufferAsIntPtr, chunkHeader.Length, 0x0A0D);
Marshal.Copy(buffer, offset, pBufferAsIntPtr + chunkHeader.Length + 2, size);
Marshal.WriteInt16(pBufferAsIntPtr, (int)(dataToWrite - 2), 0x0A0D);
pBuffer = (byte *)pBufferAsIntPtr;
offset = 0;
}
Interop.HttpApi.HTTP_DATA_CHUNK dataChunk = default;
dataChunk.DataChunkType = Interop.HttpApi.HTTP_DATA_CHUNK_TYPE.HttpDataChunkFromMemory;
dataChunk.pBuffer = (byte *)(pBuffer + offset);
dataChunk.BufferLength = dataToWrite;
flags |= _leftToWrite == size ? Interop.HttpApi.HTTP_FLAGS.NONE : Interop.HttpApi.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_MORE_DATA;
if (!sentHeaders)
{
statusCode = _httpContext.Response.SendHeaders(&dataChunk, null, flags, false);
}
else
{
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Info(this, "Calling Interop.HttpApi.HttpSendResponseEntityBody");
}
statusCode =
Interop.HttpApi.HttpSendResponseEntityBody(
_httpContext.RequestQueueHandle,
_httpContext.RequestId,
(uint)flags,
1,
&dataChunk,
null,
SafeLocalAllocHandle.Zero,
0,
null,
null);
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Info(this, "Call to Interop.HttpApi.HttpSendResponseEntityBody returned:" + statusCode);
}
if (_httpContext.Listener !.IgnoreWriteExceptions)
{
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Info(this, "Write() suppressing error");
}
statusCode = Interop.HttpApi.ERROR_SUCCESS;
}
}
}
}
}
finally
{
// free unmanaged buffer
bufferAsIntPtr?.Close();
}
if (statusCode != Interop.HttpApi.ERROR_SUCCESS && statusCode != Interop.HttpApi.ERROR_HANDLE_EOF)
{
Exception exception = new HttpListenerException((int)statusCode);
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Error(this, exception.ToString());
}
_closed = true;
_httpContext.Abort();
throw exception;
}
UpdateAfterWrite(dataToWrite);
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.DumpBuffer(this, buffer, offset, (int)dataToWrite);
}
}
protected override void Dispose(bool disposing)
{
if (NetEventSource.IsEnabled) NetEventSource.Enter(this);
try
{
if (disposing)
{
if (NetEventSource.IsEnabled) NetEventSource.Info(this, "_closed:" + _closed);
if (_closed)
{
if (NetEventSource.IsEnabled) NetEventSource.Exit(this);
return;
}
_closed = true;
Interop.HttpApi.HTTP_FLAGS flags = ComputeLeftToWrite();
if (_leftToWrite > 0 && !_inOpaqueMode)
{
throw new InvalidOperationException(SR.net_io_notenoughbyteswritten);
}
bool sentHeaders = _httpContext.Response.SentHeaders;
if (sentHeaders && _leftToWrite == 0)
{
if (NetEventSource.IsEnabled) NetEventSource.Exit(this);
return;
}
uint statusCode = 0;
if ((_httpContext.Response.BoundaryType == BoundaryType.Chunked || _httpContext.Response.BoundaryType == BoundaryType.None) && (String.Compare(_httpContext.Request.HttpMethod, "HEAD", StringComparison.OrdinalIgnoreCase) != 0))
{
if (_httpContext.Response.BoundaryType == BoundaryType.None)
{
flags |= Interop.HttpApi.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_DISCONNECT;
}
fixed (void* pBuffer = ChunkTerminator)
{
Interop.HttpApi.HTTP_DATA_CHUNK* pDataChunk = null;
if (_httpContext.Response.BoundaryType == BoundaryType.Chunked)
{
Interop.HttpApi.HTTP_DATA_CHUNK dataChunk = new Interop.HttpApi.HTTP_DATA_CHUNK();
dataChunk.DataChunkType = Interop.HttpApi.HTTP_DATA_CHUNK_TYPE.HttpDataChunkFromMemory;
dataChunk.pBuffer = (byte*)pBuffer;
dataChunk.BufferLength = (uint)ChunkTerminator.Length;
pDataChunk = &dataChunk;
}
if (!sentHeaders)
{
statusCode = _httpContext.Response.SendHeaders(pDataChunk, null, flags, false);
}
else
{
if (NetEventSource.IsEnabled) NetEventSource.Info(this, "Calling Interop.HttpApi.HttpSendResponseEntityBody");
statusCode =
Interop.HttpApi.HttpSendResponseEntityBody(
_httpContext.RequestQueueHandle,
_httpContext.RequestId,
(uint)flags,
pDataChunk != null ? (ushort)1 : (ushort)0,
pDataChunk,
null,
SafeLocalAllocHandle.Zero,
0,
null,
null);
if (NetEventSource.IsEnabled) NetEventSource.Info(this, "Call to Interop.HttpApi.HttpSendResponseEntityBody returned:" + statusCode);
if (_httpContext.Listener.IgnoreWriteExceptions)
{
if (NetEventSource.IsEnabled) NetEventSource.Info(this, "Suppressing error");
statusCode = Interop.HttpApi.ERROR_SUCCESS;
}
}
}
}
else
{
if (!sentHeaders)
{
statusCode = _httpContext.Response.SendHeaders(null, null, flags, false);
}
}
if (statusCode != Interop.HttpApi.ERROR_SUCCESS && statusCode != Interop.HttpApi.ERROR_HANDLE_EOF)
{
Exception exception = new HttpListenerException((int)statusCode);
if (NetEventSource.IsEnabled) NetEventSource.Error(this, exception.ToString());
_httpContext.Abort();
throw exception;
}
_leftToWrite = 0;
}
}
finally
{
base.Dispose(disposing);
}
if (NetEventSource.IsEnabled) NetEventSource.Exit(this);
}
public override void Write(byte[] buffer, int offset, int size)
{
if (NetEventSource.IsEnabled)
{
NetEventSource.Enter(this);
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);
return;
}
if (_leftToWrite >= 0 && size > _leftToWrite)
{
throw new ProtocolViolationException(SR.net_entitytoobig);
}
uint statusCode;
uint dataToWrite = (uint)size;
SafeLocalAllocHandle bufferAsIntPtr = null;
IntPtr pBufferAsIntPtr = IntPtr.Zero;
bool sentHeaders = _httpContext.Response.SentHeaders;
try
{
if (size == 0)
{
statusCode = _httpContext.Response.SendHeaders(null, null, flags, false);
}
else
{
fixed (byte* pDataBuffer = buffer)
{
byte* pBuffer = pDataBuffer;
if (_httpContext.Response.BoundaryType == BoundaryType.Chunked)
{
string chunkHeader = size.ToString("x", CultureInfo.InvariantCulture);
dataToWrite = dataToWrite + (uint)(chunkHeader.Length + 4);
bufferAsIntPtr = SafeLocalAllocHandle.LocalAlloc((int)dataToWrite);
pBufferAsIntPtr = bufferAsIntPtr.DangerousGetHandle();
for (int i = 0; i < chunkHeader.Length; i++)
{
Marshal.WriteByte(pBufferAsIntPtr, i, (byte)chunkHeader[i]);
}
Marshal.WriteInt16(pBufferAsIntPtr, chunkHeader.Length, 0x0A0D);
Marshal.Copy(buffer, offset, pBufferAsIntPtr + chunkHeader.Length + 2, size);
Marshal.WriteInt16(pBufferAsIntPtr, (int)(dataToWrite - 2), 0x0A0D);
pBuffer = (byte*)pBufferAsIntPtr;
offset = 0;
}
Interop.HttpApi.HTTP_DATA_CHUNK dataChunk = new Interop.HttpApi.HTTP_DATA_CHUNK();
dataChunk.DataChunkType = Interop.HttpApi.HTTP_DATA_CHUNK_TYPE.HttpDataChunkFromMemory;
dataChunk.pBuffer = (byte*)(pBuffer + offset);
dataChunk.BufferLength = dataToWrite;
flags |= _leftToWrite == size ? Interop.HttpApi.HTTP_FLAGS.NONE : Interop.HttpApi.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_MORE_DATA;
if (!sentHeaders)
{
statusCode = _httpContext.Response.SendHeaders(&dataChunk, null, flags, false);
}
else
{
if (NetEventSource.IsEnabled) NetEventSource.Info(this, "Calling Interop.HttpApi.HttpSendResponseEntityBody");
statusCode =
Interop.HttpApi.HttpSendResponseEntityBody(
_httpContext.RequestQueueHandle,
_httpContext.RequestId,
(uint)flags,
1,
&dataChunk,
null,
SafeLocalAllocHandle.Zero,
0,
null,
null);
if (NetEventSource.IsEnabled) NetEventSource.Info(this, "Call to Interop.HttpApi.HttpSendResponseEntityBody returned:" + statusCode);
if (_httpContext.Listener.IgnoreWriteExceptions)
{
if (NetEventSource.IsEnabled) NetEventSource.Info(this, "Write() suppressing error");
statusCode = Interop.HttpApi.ERROR_SUCCESS;
}
}
}
}
}
finally
{
// free unmanaged buffer
bufferAsIntPtr?.Close();
}
if (statusCode != Interop.HttpApi.ERROR_SUCCESS && statusCode != Interop.HttpApi.ERROR_HANDLE_EOF)
{
Exception exception = new HttpListenerException((int)statusCode);
if (NetEventSource.IsEnabled) NetEventSource.Error(this, exception.ToString());
_closed = true;
_httpContext.Abort();
throw exception;
}
UpdateAfterWrite(dataToWrite);
if (NetEventSource.IsEnabled) NetEventSource.DumpBuffer(this, buffer, offset, (int)dataToWrite);
if (NetEventSource.IsEnabled) NetEventSource.Exit(this);
}
private void DisposeCore()
{
Interop.HttpApi.HTTP_FLAGS flags = ComputeLeftToWrite();
if (_leftToWrite > 0 && !_inOpaqueMode)
{
throw new InvalidOperationException(SR.net_io_notenoughbyteswritten);
}
bool sentHeaders = _httpContext.Response.SentHeaders;
if (sentHeaders && _leftToWrite == 0)
{
return;
}
uint statusCode = 0;
if ((_httpContext.Response.BoundaryType == BoundaryType.Chunked || _httpContext.Response.BoundaryType == BoundaryType.None) && !string.Equals(_httpContext.Request.HttpMethod, "HEAD", StringComparison.OrdinalIgnoreCase))
{
if (_httpContext.Response.BoundaryType == BoundaryType.None)
{
flags |= Interop.HttpApi.HTTP_FLAGS.HTTP_SEND_RESPONSE_FLAG_DISCONNECT;
}
fixed(void *pBuffer = &s_chunkTerminator[0])
{
Interop.HttpApi.HTTP_DATA_CHUNK *pDataChunk = null;
if (_httpContext.Response.BoundaryType == BoundaryType.Chunked)
{
Interop.HttpApi.HTTP_DATA_CHUNK dataChunk = default;
dataChunk.DataChunkType = Interop.HttpApi.HTTP_DATA_CHUNK_TYPE.HttpDataChunkFromMemory;
dataChunk.pBuffer = (byte *)pBuffer;
dataChunk.BufferLength = (uint)s_chunkTerminator.Length;
pDataChunk = &dataChunk;
}
if (!sentHeaders)
{
statusCode = _httpContext.Response.SendHeaders(pDataChunk, null, flags, false);
}
else
{
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Info(this, "Calling Interop.HttpApi.HttpSendResponseEntityBody");
}
statusCode =
Interop.HttpApi.HttpSendResponseEntityBody(
_httpContext.RequestQueueHandle,
_httpContext.RequestId,
(uint)flags,
pDataChunk != null ? (ushort)1 : (ushort)0,
pDataChunk,
null,
SafeLocalAllocHandle.Zero,
0,
null,
null);
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Info(this, "Call to Interop.HttpApi.HttpSendResponseEntityBody returned:" + statusCode);
}
if (_httpContext.Listener.IgnoreWriteExceptions)
{
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Info(this, "Suppressing error");
}
statusCode = Interop.HttpApi.ERROR_SUCCESS;
}
}
}
}
else
{
if (!sentHeaders)
{
statusCode = _httpContext.Response.SendHeaders(null, null, flags, false);
}
}
if (statusCode != Interop.HttpApi.ERROR_SUCCESS && statusCode != Interop.HttpApi.ERROR_HANDLE_EOF)
{
Exception exception = new HttpListenerException((int)statusCode);
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Error(this, exception.ToString());
}
_httpContext.Abort();
throw exception;
}
_leftToWrite = 0;
}
private unsafe void UpdateDataChunk()
{
if (_dataChunks == null)
{
_dataChunks = new Interop.HttpApi.HTTP_DATA_CHUNK[2];
_dataChunksGCHandle = GCHandle.Alloc(_dataChunks, GCHandleType.Pinned);
_dataChunks[0] = new Interop.HttpApi.HTTP_DATA_CHUNK();
_dataChunks[0].DataChunkType = Interop.HttpApi.HTTP_DATA_CHUNK_TYPE.HttpDataChunkFromMemory;
_dataChunks[1] = new Interop.HttpApi.HTTP_DATA_CHUNK();
_dataChunks[1].DataChunkType = Interop.HttpApi.HTTP_DATA_CHUNK_TYPE.HttpDataChunkFromMemory;
}
Debug.Assert(_buffer == null || _bufferList == null, "Either 'm_Buffer' or 'm_BufferList' MUST be NULL.");
Debug.Assert(_shouldCloseOutput || _buffer != null || _bufferList != null, "Either 'm_Buffer' or 'm_BufferList' MUST NOT be NULL.");
// The underlying byte[] m_Buffer or each m_BufferList[].Array are pinned already
if (_buffer != null)
{
UpdateDataChunk(0, _buffer, _offset, _count);
UpdateDataChunk(1, null, 0, 0);
_dataChunkCount = 1;
}
else if (_bufferList != null)
{
Debug.Assert(_bufferList != null && _bufferList.Count == 2,
"'m_BufferList' MUST NOT be NULL and have exactly '2' items at this point.");
UpdateDataChunk(0, _bufferList[0].Array, _bufferList[0].Offset, _bufferList[0].Count);
UpdateDataChunk(1, _bufferList[1].Array, _bufferList[1].Offset, _bufferList[1].Count);
_dataChunkCount = 2;
}
else
{
Debug.Assert(_shouldCloseOutput, "'m_ShouldCloseOutput' MUST be 'true' at this point.");
_dataChunks = null;
}
}
internal HttpResponseStreamAsyncResult(object asyncObject, object userState, AsyncCallback callback, byte[] buffer, int offset, int size, bool chunked, bool sentHeaders, ThreadPoolBoundHandle boundHandle) : base(asyncObject, userState, callback)
{
_boundHandle = boundHandle;
_sentHeaders = sentHeaders;
if (size == 0)
{
_dataChunks = null;
_pOverlapped = boundHandle.AllocateNativeOverlapped(s_IOCallback, state: this, pinData: null);
}
else
{
_dataChunks = new Interop.HttpApi.HTTP_DATA_CHUNK[chunked ? 3 : 1];
if (NetEventSource.IsEnabled)
{
NetEventSource.Info(this, "m_pOverlapped:0x" + ((IntPtr)_pOverlapped).ToString("x8"));
}
object[] objectsToPin = new object[1 + _dataChunks.Length];
objectsToPin[_dataChunks.Length] = _dataChunks;
int chunkHeaderOffset = 0;
byte[] chunkHeaderBuffer = null;
if (chunked)
{
chunkHeaderBuffer = GetChunkHeader(size, out chunkHeaderOffset);
_dataChunks[0] = new Interop.HttpApi.HTTP_DATA_CHUNK();
_dataChunks[0].DataChunkType = Interop.HttpApi.HTTP_DATA_CHUNK_TYPE.HttpDataChunkFromMemory;
_dataChunks[0].BufferLength = (uint)(chunkHeaderBuffer.Length - chunkHeaderOffset);
objectsToPin[0] = chunkHeaderBuffer;
_dataChunks[1] = new Interop.HttpApi.HTTP_DATA_CHUNK();
_dataChunks[1].DataChunkType = Interop.HttpApi.HTTP_DATA_CHUNK_TYPE.HttpDataChunkFromMemory;
_dataChunks[1].BufferLength = (uint)size;
objectsToPin[1] = buffer;
_dataChunks[2] = new Interop.HttpApi.HTTP_DATA_CHUNK();
_dataChunks[2].DataChunkType = Interop.HttpApi.HTTP_DATA_CHUNK_TYPE.HttpDataChunkFromMemory;
_dataChunks[2].BufferLength = (uint)s_CRLFArray.Length;
objectsToPin[2] = s_CRLFArray;
}
else
{
_dataChunks[0] = new Interop.HttpApi.HTTP_DATA_CHUNK();
_dataChunks[0].DataChunkType = Interop.HttpApi.HTTP_DATA_CHUNK_TYPE.HttpDataChunkFromMemory;
_dataChunks[0].BufferLength = (uint)size;
objectsToPin[0] = buffer;
}
// This call will pin needed memory
_pOverlapped = boundHandle.AllocateNativeOverlapped(s_IOCallback, state: this, pinData: objectsToPin);
if (chunked)
{
_dataChunks[0].pBuffer = (byte *)(Marshal.UnsafeAddrOfPinnedArrayElement(chunkHeaderBuffer, chunkHeaderOffset));
_dataChunks[1].pBuffer = (byte *)(Marshal.UnsafeAddrOfPinnedArrayElement(buffer, offset));
_dataChunks[2].pBuffer = (byte *)(Marshal.UnsafeAddrOfPinnedArrayElement(s_CRLFArray, 0));
}
else
{
_dataChunks[0].pBuffer = (byte *)(Marshal.UnsafeAddrOfPinnedArrayElement(buffer, offset));
}
}
}
internal HttpResponseStreamAsyncResult(object asyncObject, object userState, AsyncCallback callback, byte[] buffer, int offset, int size, bool chunked, bool sentHeaders, ThreadPoolBoundHandle boundHandle) : base(asyncObject, userState, callback)
{
_boundHandle = boundHandle;
_sentHeaders = sentHeaders;
if (size == 0)
{
_dataChunks = null;
_pOverlapped = boundHandle.AllocateNativeOverlapped(s_IOCallback, state: this, pinData: null);
}
else
{
_dataChunks = new Interop.HttpApi.HTTP_DATA_CHUNK[chunked ? 3 : 1];
if (NetEventSource.IsEnabled) NetEventSource.Info(this, "m_pOverlapped:0x" + ((IntPtr)_pOverlapped).ToString("x8"));
object[] objectsToPin = new object[1 + _dataChunks.Length];
objectsToPin[_dataChunks.Length] = _dataChunks;
int chunkHeaderOffset = 0;
byte[] chunkHeaderBuffer = null;
if (chunked)
{
chunkHeaderBuffer = GetChunkHeader(size, out chunkHeaderOffset);
_dataChunks[0] = new Interop.HttpApi.HTTP_DATA_CHUNK();
_dataChunks[0].DataChunkType = Interop.HttpApi.HTTP_DATA_CHUNK_TYPE.HttpDataChunkFromMemory;
_dataChunks[0].BufferLength = (uint)(chunkHeaderBuffer.Length - chunkHeaderOffset);
objectsToPin[0] = chunkHeaderBuffer;
_dataChunks[1] = new Interop.HttpApi.HTTP_DATA_CHUNK();
_dataChunks[1].DataChunkType = Interop.HttpApi.HTTP_DATA_CHUNK_TYPE.HttpDataChunkFromMemory;
_dataChunks[1].BufferLength = (uint)size;
objectsToPin[1] = buffer;
_dataChunks[2] = new Interop.HttpApi.HTTP_DATA_CHUNK();
_dataChunks[2].DataChunkType = Interop.HttpApi.HTTP_DATA_CHUNK_TYPE.HttpDataChunkFromMemory;
_dataChunks[2].BufferLength = (uint)s_CRLFArray.Length;
objectsToPin[2] = s_CRLFArray;
}
else
{
_dataChunks[0] = new Interop.HttpApi.HTTP_DATA_CHUNK();
_dataChunks[0].DataChunkType = Interop.HttpApi.HTTP_DATA_CHUNK_TYPE.HttpDataChunkFromMemory;
_dataChunks[0].BufferLength = (uint)size;
objectsToPin[0] = buffer;
}
// This call will pin needed memory
_pOverlapped = boundHandle.AllocateNativeOverlapped(s_IOCallback, state: this, pinData: objectsToPin);
if (chunked)
{
_dataChunks[0].pBuffer = (byte*)(Marshal.UnsafeAddrOfPinnedArrayElement(chunkHeaderBuffer, chunkHeaderOffset));
_dataChunks[1].pBuffer = (byte*)(Marshal.UnsafeAddrOfPinnedArrayElement(buffer, offset));
_dataChunks[2].pBuffer = (byte*)(Marshal.UnsafeAddrOfPinnedArrayElement(s_CRLFArray, 0));
}
else
{
_dataChunks[0].pBuffer = (byte*)(Marshal.UnsafeAddrOfPinnedArrayElement(buffer, offset));
}
}
}
