/// <summary>
/// Parses a metadata.
/// Metadata consists of a list of properties consisting of
/// name and value as size-specified strings.
/// </summary>
/// <returns>Returns true on success and false on error.</returns>
protected bool ParseMetadata(Span <byte> source)
{
while (source.Length > 1)
{
int nameLength = source[0];
source = source.Slice(NameLengthSize);
if (source.Length < nameLength)
{
break;
}
string name = SpanUtility.ToAscii(source.Slice(0, nameLength));
source = source.Slice(nameLength);
if (source.Length < ValueLengthSize)
{
break;
}
int valueLength = NetworkOrderBitsConverter.ToInt32(source);
source = source.Slice(ValueLengthSize);
if (source.Length < valueLength)
{
break;
}
byte[] value = new byte[valueLength];
source.Slice(0, valueLength).CopyTo(value);
source = source.Slice(valueLength);
if (name == ZmtpPropertyIdentity && Options.RecvIdentity)
{
PeerIdentity = value;
}
else if (name == ZmtpPropertySocketType)
{
if (!CheckSocketType(Encoding.ASCII.GetString(value)))
{
return(false);
}
}
else
{
if (!GetProperty(name, value, valueLength))
{
return(false);
}
}
}
if (source.Length > 0)
{
return(false);
}
return(true);
}
PushMsgResult ProcessErrorCommand(Span <byte> commandData)
{
int fixedPrefixSize = ErrorCommandName.Length + 1 + ErrorReasonLengthSize;
if (commandData.Length < fixedPrefixSize)
{
return(PushMsgResult.Error);
}
int errorReasonLength = commandData[ErrorCommandName.Length + 1];
if (errorReasonLength > commandData.Length - fixedPrefixSize)
{
return(PushMsgResult.Error);
}
string errorReason = SpanUtility.ToAscii(commandData.Slice(fixedPrefixSize, errorReasonLength));
// TODO: handle error, nothing todo at the moment as monitoring and zap are not yet implemented
m_errorCommandReceived = true;
return(PushMsgResult.Ok);
}
