public override void Close()
{
if (m_Closed)
{
return;
}
m_Closed = true;
//
// we need to flush ul in order to tell it that we have no more data
// to send in the entity body, and if we're chunk-encoding we need to
// send the trailer chunk
//
if (m_SendChunked == true)
{
//
// send the trailer
//
}
int DataWritten = 0;
int result =
ComNetOS.IsWinNt ?
UlSysApi.UlSendEntityBody(
m_AppPoolHandle,
m_RequestId,
0,
0,
IntPtr.Zero,
ref DataWritten,
IntPtr.Zero)
:
UlVxdApi.UlSendHttpResponseEntityBody(
m_AppPoolHandle,
m_RequestId,
0,
0,
IntPtr.Zero,
ref DataWritten,
IntPtr.Zero);
GlobalLog.Print("UlSendHttpResponseEntityBody(0) DataWritten: " + Convert.ToString(DataWritten));
//
// ignore return value???
//
if (result != NativeMethods.ERROR_SUCCESS && result != NativeMethods.ERROR_HANDLE_EOF)
{
GlobalLog.Print("sync UlSendHttpResponseEntityBody(0) failed, err#" + Convert.ToString(result));
// throw new InvalidOperationException( "UlSendHttpResponseEntityBody() failed, err#" + Convert.ToString( result ) );
}
return;
} // Close()
} // Position
//
// write a chunk of data to ul
//
public override void Write(
byte[] buffer,
int offset,
int count)
{
GlobalLog.Print("ListenerResponseStream.WriteCore() offset: " + Convert.ToString(offset) + " count:" + Convert.ToString(count));
if (m_ContentLength != -1 && m_ContentLength < count)
{
//
// user can't send more data than specified in the ContentLength
//
throw new ProtocolViolationException(SR.GetString(SR.net_entitytoobig));
}
int DataToWrite = count;
GCHandle PinnedBuffer = new GCHandle();
IntPtr AddrOfPinnedBuffer = IntPtr.Zero;
if (m_SendChunked)
{
string ChunkHeader = "0x" + Convert.ToString(count, 16);
DataToWrite += ChunkHeader.Length + 4;
AddrOfPinnedBuffer = Marshal.AllocHGlobal(DataToWrite);
Marshal.Copy(ChunkHeader.ToCharArray(), 0, AddrOfPinnedBuffer, ChunkHeader.Length);
Marshal.WriteInt16(AddrOfPinnedBuffer, ChunkHeader.Length, 0x0A0D);
Marshal.Copy((byte[])buffer, offset, IntPtrHelper.Add(AddrOfPinnedBuffer, ChunkHeader.Length + 2), count);
Marshal.WriteInt16(AddrOfPinnedBuffer, DataToWrite - 2, 0x0A0D);
}
else
{
//
// pin the buffer and make an unmanaged call to the driver to
// write more entity body
//
PinnedBuffer = GCHandle.Alloc(buffer, GCHandleType.Pinned);
AddrOfPinnedBuffer = PinnedBuffer.AddrOfPinnedObject();
}
//
// set up a UL_DATA_CHUNK structure to pass down to UL with pointers
// to data to be written
//
IntPtr AddrOfPinnedEntityChunks = Marshal.AllocHGlobal(32);
//
// AddrOfPinnedBuffer and count go into a pEntityChunks structure
//
Marshal.WriteInt64(AddrOfPinnedEntityChunks, 0, 0);
Marshal.WriteIntPtr(AddrOfPinnedEntityChunks, 8, AddrOfPinnedBuffer);
Marshal.WriteInt32(AddrOfPinnedEntityChunks, 12, DataToWrite);
Marshal.WriteInt64(AddrOfPinnedEntityChunks, 16, 0);
Marshal.WriteInt64(AddrOfPinnedEntityChunks, 24, 0);
GlobalLog.Print("Calling UlSendHttpResponseEntityBody: AddrOfPinnedEntityChunks:" + Convert.ToString(AddrOfPinnedEntityChunks)
+ " AddrOfPinnedBuffer:" + Convert.ToString(AddrOfPinnedBuffer)
+ " DataToWrite:" + Convert.ToString(DataToWrite));
//
// issue unmanaged blocking call
//
int DataWritten = 0;
int result =
ComNetOS.IsWinNt ?
UlSysApi.UlSendEntityBody(
m_AppPoolHandle,
m_RequestId,
UlConstants.UL_SEND_RESPONSE_FLAG_MORE_DATA,
1,
AddrOfPinnedEntityChunks,
ref DataWritten,
IntPtr.Zero)
:
UlVxdApi.UlSendHttpResponseEntityBody(
m_AppPoolHandle,
m_RequestId,
0,
1,
AddrOfPinnedEntityChunks,
ref DataWritten,
IntPtr.Zero);
if (m_SendChunked)
{
//
// data was copied into an unmanaged buffer, free it
//
Marshal.FreeHGlobal(AddrOfPinnedBuffer);
}
else
{
//
// data wasn't copied unpin the pinned buffer
//
PinnedBuffer.Free();
}
Marshal.FreeHGlobal(AddrOfPinnedEntityChunks);
GlobalLog.Print("UlSendHttpResponseEntityBody() DataWritten:" + Convert.ToString(DataWritten) + " DataToWrite:" + Convert.ToString(DataToWrite));
if (result != NativeMethods.ERROR_SUCCESS) //Win32.ERROR_CANCELLED || Win32.ERROR_BAD_COMMAND || NativeMethods.ERROR_INVALID_PARAMETER
{
throw new ProtocolViolationException(SR.GetString(SR.net_connclosed) + Convert.ToString(result));
}
//
// double check the number of bytes written
//
if (DataWritten != DataToWrite)
{
throw new InvalidOperationException("sync UlSendHttpResponseEntityBody() failed to write all the data" +
" count:" + Convert.ToString(count) +
" DataWritten:" + Convert.ToString(DataWritten) +
" DataToWrite:" + Convert.ToString(DataToWrite) +
" m_AppPoolHandle:" + Convert.ToString(m_AppPoolHandle) +
" m_RequestId:" + Convert.ToString(m_RequestId) +
" err#" + Convert.ToString(result));
}
if (result != NativeMethods.ERROR_SUCCESS && result != NativeMethods.ERROR_HANDLE_EOF)
{
//
// Consider: move all Exception string to system.txt for localization
//
throw new InvalidOperationException("sync UlSendHttpResponseEntityBody() failed, err#" + Convert.ToString(result));
}
if (m_ContentLength != -1)
{
//
// keep track of the data transferred
//
m_ContentLength -= count;
if (m_ContentLength == 0)
{
//
// I should be able to call Close() at this point
//
}
}
return; // DataToWrite;
} // Write()
