private ServiceElement BuildElement(IntPtr pElemData)
{
var elemData = (Structs.sdp_data_struct__Bytes)Marshal.PtrToStructure(
pElemData, typeof(Structs.sdp_data_struct__Bytes));
var debug = (Structs.sdp_data_struct__Debug)Marshal.PtrToStructure(
pElemData, typeof(Structs.sdp_data_struct__Debug));
//
ElementTypeDescriptor etd; SizeIndex sizeIndex;
Map(elemData.dtd, out etd, out sizeIndex);
//Console.WriteLine("BE: dtd: {0}, unitSize: {1}",
// elemData.dtd, elemData.unitSize);
//
if (etd == ElementTypeDescriptor.ElementSequence ||
etd == ElementTypeDescriptor.ElementAlternative)
{
IntPtr pCur = elemData.ReadIntPtr();
var list = DoSequence(pCur);
#if DEBUG
ElementTypeDescriptor cover;
if (etd == ElementTypeDescriptor.ElementAlternative)
{
cover = etd; //COVERAGE
}
else
{
cover = etd; //COVERAGE
}
#endif
return(new ServiceElement(
etd == ElementTypeDescriptor.ElementSequence
? ElementType.ElementSequence
: ElementType.ElementAlternative,
list));
}
else
{
byte[] buf;
byte[] data;
if (etd == ElementTypeDescriptor.TextString ||
etd == ElementTypeDescriptor.Url)
{
buf = new byte[elemData.unitSize];
IntPtr pStr = elemData.ReadIntPtr();
Marshal.Copy(pStr, buf, 0, buf.Length - 1);
//----
}
else if (etd == ElementTypeDescriptor.Uuid)
{
var elemDataUuid = (Structs.sdp_data_struct__uuid_t)Marshal.PtrToStructure(
pElemData, typeof(Structs.sdp_data_struct__uuid_t));
Debug.Assert(elemDataUuid.dtd == elemDataUuid.val.type, "uuid type");
int len = FromSizeIndex(sizeIndex);
buf = new byte[len];
data = elemDataUuid.val.value;
Array.Copy(data, buf, buf.Length);
//----
}
else
{
int len = FromSizeIndex(sizeIndex);
buf = new byte[len];
data = elemData.val;
Array.Copy(data, buf, buf.Length);
}
int readLen = buf.Length;
bool networkOrderFalse = false;
var elem = _parser.ParseContent(networkOrderFalse, networkOrderFalse,
buf, 0, buf.Length, ref readLen,
etd, sizeIndex, buf.Length, 0);
return(elem);
}
}
private ServiceElement BuildElement(IntPtr pElemData)
{
var elemData = (Structs.SDP_Data_Element)Marshal.PtrToStructure(
pElemData, typeof(Structs.SDP_Data_Element));
var sizeofElemData = Marshal.SizeOf(typeof(Structs.SDP_Data_Element));
//
ElementTypeDescriptor etd; SizeIndex sizeIndex;
Map(elemData.SDP_Data_Element_Type, out etd, out sizeIndex);
//
const int OffsetOf_FakeAtUnionPosition = 8;
#if !NETCF
var dbgOffset = Marshal.OffsetOf(typeof(Structs.SDP_Data_Element), "FakeAtUnionPosition");
Debug.Assert(new IntPtr(OffsetOf_FakeAtUnionPosition) == dbgOffset,
"OffsetOf_FakeAtUnionPosition but: " + dbgOffset);
#endif
IntPtr pDataInStruct = Pointers.Add(pElemData, OffsetOf_FakeAtUnionPosition);
IntPtr pArrElements = Marshal.ReadIntPtr(pDataInStruct);
if (etd == ElementTypeDescriptor.ElementSequence ||
etd == ElementTypeDescriptor.ElementAlternative)
{
var list = new List <ServiceElement>();
var pCur = pArrElements;
for (int i = 0; i < elemData.SDP_Data_Element_Length; ++i)
{
var e = BuildElement(pCur);
list.Add(e);
// Next
pCur = Pointers.Add(pCur, sizeofElemData);
}//for
#if DEBUG
ElementTypeDescriptor cover;
if (etd == ElementTypeDescriptor.ElementAlternative)
{
cover = etd; //COVERAGE
}
else
{
cover = etd; //COVERAGE
}
#endif
return(new ServiceElement(
etd == ElementTypeDescriptor.ElementSequence
? ElementType.ElementSequence
: ElementType.ElementAlternative,
list));
}
else
{
byte[] buf = new byte[elemData.SDP_Data_Element_Length];
IntPtr pData;
if (etd == ElementTypeDescriptor.TextString ||
etd == ElementTypeDescriptor.Url)
{
pData = pArrElements;
}
else
{
pData = pDataInStruct;
}
Marshal.Copy(pData, buf, 0, buf.Length);
int readLen = buf.Length;
var elem = _parser.ParseContent(false, true,
buf, 0, buf.Length, ref readLen,
etd, sizeIndex, buf.Length, 0);
return(elem);
}
}