/// <summary>
/// Create a native PAC_INFO_BUFFER of instance of current class,
/// leaves cbBufferSize and Offset empty.
/// </summary>
/// <returns>The native PAC_INFO_BUFFER of instance of current class.</returns>
internal PAC_INFO_BUFFER CreateNativeInfoBuffer()
{
PAC_INFO_BUFFER nativeInfo = new PAC_INFO_BUFFER();
nativeInfo.ulType = GetBufferInfoType();
return nativeInfo;
}
/// <summary>
/// Create a native PAC_INFO_BUFFER of instance of current class,
/// leaves cbBufferSize and Offset empty.
/// </summary>
/// <returns>The native PAC_INFO_BUFFER of instance of current class.</returns>
internal PAC_INFO_BUFFER CreateNativeInfoBuffer()
{
PAC_INFO_BUFFER nativeInfo = new PAC_INFO_BUFFER();
nativeInfo.ulType = GetBufferInfoType();
return(nativeInfo);
}
/// <summary>
/// Decode the specified PAC_TYPE buffer into an instance of PacInfoBuffer,
/// according to specified PAC_INFO_BUFFER native structure.
/// </summary>
/// <param name="nativePacInfoBuffer">The specified PAC_INFO_BUFFER native structure.</param>
/// <param name="buffer">The specified PAC_TYPE buffer.</param>
/// <returns>The decoded instance of PacInfoBuffer.</returns>
internal static PacInfoBuffer DecodeBuffer(PAC_INFO_BUFFER nativePacInfoBuffer, byte[] buffer)
{
PacInfoBuffer pacInfoBuffer = CreatePacInfoBuffer(nativePacInfoBuffer.ulType);
pacInfoBuffer.DecodeBuffer(
buffer,
(int)nativePacInfoBuffer.Offset,
(int)nativePacInfoBuffer.cbBufferSize);
return pacInfoBuffer;
}
/// <summary>
/// Decode the specified PAC_TYPE buffer into an instance of PacInfoBuffer,
/// according to specified PAC_INFO_BUFFER native structure.
/// </summary>
/// <param name="nativePacInfoBuffer">The specified PAC_INFO_BUFFER native structure.</param>
/// <param name="buffer">The specified PAC_TYPE buffer.</param>
/// <returns>The decoded instance of PacInfoBuffer.</returns>
static internal PacInfoBuffer DecodeBuffer(PAC_INFO_BUFFER nativePacInfoBuffer, byte[] buffer)
{
PacInfoBuffer pacInfoBuffer = CreatePacInfoBuffer(nativePacInfoBuffer.ulType);
pacInfoBuffer.DecodeBuffer(
buffer,
(int)nativePacInfoBuffer.Offset,
(int)nativePacInfoBuffer.cbBufferSize);
return(pacInfoBuffer);
}
/// <summary>
/// Assert buffers[index].cbBufferSiz == length.
/// Else throw ArgumentException.
/// </summary>
/// <param name="buffers">The specified PAC_INFO_BUFFER[] array.</param>
/// <param name="index">The specified array index.</param>
/// <param name="length">The expected length of array element's cbBufferSize.</param>
private static void AssertBufferSize(PAC_INFO_BUFFER[] buffers, int index, int length)
{
if (buffers[index].cbBufferSize != length)
{
throw new ArgumentException(
string.Format("NativePacType.Buffers[{0}].cbBufferSize {1} != length {2}",
index,
buffers[index].cbBufferSize,
length));
}
}