public MessageHeader(
SocketOperations socketOperations,
Decoder header,
ReadOnlySpan <byte> controlBytes,
bool isMonoRuntime
)
{
this.socketOperations = socketOperations;
BodySignature = "";
while (!header.IsFinished)
{
var typeCode = (DbusHeaderType)header.GetByte();
header.GetSignature(); // variant signature
switch (typeCode)
{
case DbusHeaderType.Path:
Path = header.GetObjectPath();
break;
case DbusHeaderType.InterfaceName:
InterfaceName = header.GetString();
break;
case DbusHeaderType.Member:
Member = header.GetString();
break;
case DbusHeaderType.ErrorName:
ErrorName = header.GetString();
break;
case DbusHeaderType.ReplySerial:
ReplySerial = header.GetUInt32();
break;
case DbusHeaderType.Destination:
Destination = header.GetString();
break;
case DbusHeaderType.Sender:
Sender = header.GetString();
break;
case DbusHeaderType.Signature:
BodySignature = header.GetSignature();
break;
case DbusHeaderType.UnixFds:
var numberOfFds = header.GetUInt32();
var cmsgHeaderBytes = controlBytes.Slice(0, sizeofCmsghdr);
var cmsgHeader = MemoryMarshal.Cast <byte, cmsghdr>(cmsgHeaderBytes);
var fileDescriptorsBytes = controlBytes.Slice(
sizeofCmsghdr,
(int)cmsgHeader[0].len - sizeofCmsghdr
);
var fileDescriptors = MemoryMarshal.Cast <byte, int>(fileDescriptorsBytes);
System.Diagnostics.Debug.Assert(numberOfFds == fileDescriptors.Length);
UnixFds = new SafeHandle[numberOfFds];
for (var i = 0; i < numberOfFds; ++i)
{
if (isMonoRuntime)
{
UnixFds[i] = new ReceivedFileDescriptorSafeHandle(fileDescriptors[i]);
}
else
{
UnixFds[i] = new SafeFileHandle(new IntPtr(fileDescriptors[i]), true);
}
}
break;
}
header.AdvanceToCompoundValue();
}
}