SetupMultipleBuffers()

void System.Net.Sockets.SocketAsyncEventArgs.SetupMultipleBuffers ( )

inlineprivateinherited

Definition at line 1528 of file SocketAsyncEventArgs.cs.

    {
        if (_bufferListInternal == null || _bufferListInternal.Count == 0)
        {
            if (_pinState == PinState.MultipleBuffer)
            {
                FreePinHandles();
            }
            return;
        }
        FreePinHandles();
        try
        {
            int count = _bufferListInternal.Count;
            if (_multipleBufferMemoryHandles == null || _multipleBufferMemoryHandles.Length < count)
            {
                _multipleBufferMemoryHandles = new MemoryHandle[count];
            }
            for (int i = 0; i < count; i++)
            {
                _multipleBufferMemoryHandles[i] = _bufferListInternal[i].Array.AsMemory().Pin();
            }
            if (_wsaBufferArrayPinned == null || _wsaBufferArrayPinned.Length < count)
            {
                _wsaBufferArrayPinned = GC.AllocateUninitializedArray<WSABuffer>(count, pinned: true);
            }
            for (int j = 0; j < count; j++)
            {
                ArraySegment<byte> arraySegment = _bufferListInternal[j];
                _wsaBufferArrayPinned[j].Pointer = Marshal.UnsafeAddrOfPinnedArrayElement(arraySegment.Array, arraySegment.Offset);
                _wsaBufferArrayPinned[j].Length = arraySegment.Count;
            }
            _pinState = PinState.MultipleBuffer;
        }
        catch (Exception)
        {
            FreePinHandles();
            throw;
        }
    }

References System.Net.Sockets.SocketAsyncEventArgs._bufferListInternal, System.Net.Sockets.SocketAsyncEventArgs._multipleBufferMemoryHandles, System.Net.Sockets.SocketAsyncEventArgs._pinState, System.Net.Sockets.SocketAsyncEventArgs._wsaBufferArrayPinned, System.count, System.Collections.Generic.Dictionary< TKey, TValue >.Count, System.Net.Sockets.SocketAsyncEventArgs.FreePinHandles(), System.Net.Sockets.WSABuffer.Length, System.Net.Sockets.WSABuffer.Pointer, and System.Runtime.InteropServices.Marshal.UnsafeAddrOfPinnedArrayElement().