private static void SetHeader16(byte[] buffer, FieldEncodingType fieldencodingtype, Int16 encodedLength)
{
//Debug.WriteLine($"Set16: FieldType: {fieldencodingtype}\tencodedLength: {encodedLength}");
SetFieldEncodingType(buffer, fieldencodingtype);
buffer[__HEADER_ENDCODEDLENGTH + 1] = (byte)(encodedLength >> 0);
buffer[__HEADER_ENDCODEDLENGTH + 0] = (byte)(encodedLength >> 8);
}
public static Int64 GetInt64(byte[] buffer, ref int fieldBufferBase)
{
Int64 decodedValue = default(Int64);
Int64 value;
Int32 encodedLength = 0;
FieldEncodingType fieldencodingtype = GetFieldEncodingType(buffer, fieldBufferBase);
switch (fieldencodingtype)
{
case FieldEncodingType.Int64Hdr16:
case FieldEncodingType.UInt64Hdr16:
{
encodedLength = GetEncodedLength16(buffer, fieldBufferBase);
value = -encodedLength;
encodedLength = 0;
decodedValue = value;
break;
}
case FieldEncodingType.Int64Hdr32:
case FieldEncodingType.UInt64Hdr32:
{
encodedLength = GetEncodedLength32(buffer, fieldBufferBase);
value = -encodedLength;
encodedLength = (__HEADER32_LENGTH - __HEADER16_LENGTH);
decodedValue = value;
break;
}
case FieldEncodingType.Int64Hdr16Data:
case FieldEncodingType.UInt64Hdr16Data:
{
encodedLength = GetEncodedLength16(buffer, fieldBufferBase);
value = ((Int64)buffer[fieldBufferBase + __HEADER16_LENGTH + 7] << 0) |
((Int64)buffer[fieldBufferBase + __HEADER16_LENGTH + 6] << 8) |
((Int64)buffer[fieldBufferBase + __HEADER16_LENGTH + 5] << 16) |
((Int64)buffer[fieldBufferBase + __HEADER16_LENGTH + 4] << 24) |
((Int64)buffer[fieldBufferBase + __HEADER16_LENGTH + 3] << 32) |
((Int64)buffer[fieldBufferBase + __HEADER16_LENGTH + 2] << 40) |
((Int64)buffer[fieldBufferBase + __HEADER16_LENGTH + 1] << 48) |
((Int64)buffer[fieldBufferBase + __HEADER16_LENGTH + 0] << 56);
decodedValue = value;
break;
}
default: // e.g. FieldEncodingType.Unknown
{
encodedLength = buffer.Length - __HEADER16_LENGTH;
decodedValue = default(Int64);
break;
}
}
fieldBufferBase += __HEADER16_LENGTH + encodedLength;
return(decodedValue);
}
private static void SetHeader32(byte[] buffer, FieldEncodingType fieldencodingtype, byte b0, byte b1, byte b2, byte b3)
{
//Debug.WriteLine($"Set32b: FieldType: {fieldencodingtype}\tb0,b1,b2,b3: {b0} {b1} {b2} {b3}");
SetFieldEncodingType(buffer, fieldencodingtype);
buffer[__HEADER_ENDCODEDLENGTH + 3] = b3;
buffer[__HEADER_ENDCODEDLENGTH + 2] = b2;
buffer[__HEADER_ENDCODEDLENGTH + 1] = b1;
buffer[__HEADER_ENDCODEDLENGTH + 0] = b0;
}
private void SerializeField(StringBuilder sb, FieldInfo fieldInfo, int tabSize)
{
var fieldAttr = fieldInfo.GetCustomAttribute <FieldAttribute>();
var fieldType = fieldInfo.FieldType;
var isMessage = fieldType.GetCustomAttribute <MessageAttribute>() != null;
var ind = "".PadLeft(tabSize, ' ');
sb.Append(ind + "{\n");
var indentation = ind + " ";
FieldEncodingType encodingType = GetFieldEncodingType(fieldType);
int head = (fieldAttr.ID << 3) | (int)encodingType;
sb.Append(indentation + WriteFiledComment(fieldInfo));
sb.AppendFormat(indentation + WriteLiteral32(fieldInfo.Name + "_head", head));
if (encodingType == FieldEncodingType.FieldEncodingType32Bits || encodingType == FieldEncodingType.FieldEncodingType64Bits)
{
sb.AppendFormat(indentation + WriteLVal(fieldInfo.Name + "_", encodingType == FieldEncodingType.FieldEncodingType32Bits ? 4 : 8));
}
else if (fieldType == typeof(string))
{
sb.AppendFormat(indentation + WriteRVal(fieldInfo.Name, fieldInfo.Name + "_.length()", 32));
sb.AppendFormat(indentation + "ss << {0}_;\n", fieldInfo.Name);
}
else if (isMessage)
{
string strName = string.Format("tmp_{0}", fieldInfo.Name);
sb.AppendFormat(indentation + "std::string {0} = {1}_.SerializeAsString();\n", strName, fieldInfo.Name);
sb.AppendFormat(indentation + WriteRVal(strName, strName + ".length()", 32));
sb.AppendFormat(indentation + "ss << {0};\n", strName);
}
sb.Append(ind + "}\n");
}
private void DeseializeField(StringBuilder sb, FieldInfo fieldInfo, int tabSize)
{
var fieldAttr = fieldInfo.GetCustomAttribute <FieldAttribute>();
var fieldType = fieldInfo.FieldType;
var isMessage = fieldType.GetCustomAttribute <MessageAttribute>() != null;
var ind = "".PadLeft(tabSize, ' ');
sb.AppendFormat(" else if (tag == {0}) {{\n", fieldAttr.ID);
sb.Append(ind + WriteFiledComment(fieldInfo));
FieldEncodingType encodingType = GetFieldEncodingType(fieldType);
if (encodingType == FieldEncodingType.FieldEncodingType32Bits || encodingType == FieldEncodingType.FieldEncodingType64Bits)
{
sb.AppendFormat(ind + ReadVal(fieldInfo.Name + "_", encodingType == FieldEncodingType.FieldEncodingType32Bits ? 4 : 8));
}
else if (fieldType == typeof(string))
{
sb.AppendFormat(ind + "int length = 0;\n");
sb.AppendFormat(ind + ReadVal("length", 4));
sb.AppendFormat(ind + "{0}_.resize(length);\n", fieldInfo.Name);
sb.AppendFormat(ind + ReadString(fieldInfo.Name + "_", "length"));
}
else if (isMessage)
{
sb.AppendFormat(ind + "int length = 0;\n");
sb.AppendFormat(ind + ReadVal("length", 4));
sb.AppendFormat(ind + "std::string buffer;\n");
sb.AppendFormat(ind + "buffer.resize(length);\n");
sb.AppendFormat(ind + ReadString("buffer", "length"));
sb.AppendFormat(ind + "{0}_.ParseFromString(buffer);\n", fieldInfo.Name);
}
sb.AppendFormat("".PadLeft(tabSize - 2, ' ') + "}}");
}
public static byte[] GetFieldBuffer(UInt64 value)
{
byte[] buffer = GetFieldBuffer((Int64)value);
FieldEncodingType fieldencodingtype = GetFieldEncodingType(buffer, 0);
switch (fieldencodingtype)
{
case FieldEncodingType.Int64Hdr16:
{
SetFieldEncodingType(buffer, FieldEncodingType.UInt64Hdr16); break;
}
case FieldEncodingType.Int64Hdr32:
{
SetFieldEncodingType(buffer, FieldEncodingType.UInt64Hdr32); break;
}
case FieldEncodingType.Int64Hdr16Data:
{
SetFieldEncodingType(buffer, FieldEncodingType.UInt64Hdr16Data); break;
}
}
return(buffer);
}
public static void SetFieldEncodingType(byte[] fieldBuffer, FieldEncodingType fieldencodingtype) // 16 and 32
{
fieldBuffer[__HEADER_FIELDENCODINGTYPE] = (byte)fieldencodingtype;
}
public const Int32 ENCODED32_VALUE_MAX = 0x0fffffff; // 268,435,455
public static FieldEncodingType GetFieldEncodingType(byte[] fieldBuffer, int fieldBufferBase) // 16 and 32
{
FieldEncodingType fieldencodingtype = (FieldEncodingType)fieldBuffer[fieldBufferBase + __HEADER_FIELDENCODINGTYPE];
return(fieldencodingtype);
}
public static byte[] GetByteArray(byte[] buffer, ref int fieldBufferBase, FieldEncodingType fieldEncodingOverride = FieldEncodingType.NoOverride)
{
byte[] decodedValue = default(byte[]);
FieldEncodingType fieldencodingtype = GetFieldEncodingType(buffer, fieldBufferBase);
if (fieldEncodingOverride != FieldEncodingType.NoOverride)
{
fieldencodingtype = fieldEncodingOverride; //Guid
}
switch (fieldencodingtype)
{
case FieldEncodingType.ByteArrayHdr16:
{
Int16 encodedLength = GetEncodedLength16(buffer, fieldBufferBase);
if (encodedLength == __ENCODED16_NULL ||
encodedLength == __ENCODED16_ERROR ||
encodedLength == __ENCODED16_EXCEPTION)
{
decodedValue = null;
encodedLength = 0;
}
else if (encodedLength >= -1 - byte.MaxValue && encodedLength <= -1)
{
decodedValue = new byte[1];
decodedValue[0] = (byte)(-encodedLength - 1);
encodedLength = 0;
}
else if (encodedLength == 0)
{
decodedValue = Array.Empty <byte>();
encodedLength = 0;
}
else
{
// Should never end up here
decodedValue = null;
encodedLength = 0;
}
fieldBufferBase += __HEADER16_LENGTH + encodedLength;
break;
}
case FieldEncodingType.ByteArrayHdr16Data:
{
Int16 encodedLength = GetEncodedLength16(buffer, fieldBufferBase);
if (encodedLength > 0)
{
decodedValue = new byte[encodedLength];
for (int i = 0; i < encodedLength; i++)
{
decodedValue[i] = buffer[fieldBufferBase + __HEADER16_LENGTH + i];
}
}
else
{
// Should never end up here
decodedValue = null;
encodedLength = 0;
}
fieldBufferBase += __HEADER16_LENGTH + encodedLength;
break;
}
case FieldEncodingType.ByteArrayHdr32:
{
Int32 encodedLength;
switch (buffer[__HEADER_ENDCODEDLENGTH + 0])
{
case __ENCODED32_ENCODEDVALUE_1BYTE:
{
// Should get here ever
decodedValue = null;
encodedLength = 0;
break;
}
case __ENCODED32_ENCODEDVALUE_2BYTES:
{
decodedValue = new byte[2];
decodedValue[0] = buffer[fieldBufferBase + __HEADER_ENDCODEDLENGTH + 1];
decodedValue[1] = buffer[fieldBufferBase + __HEADER_ENDCODEDLENGTH + 2];
encodedLength = 0;
break;
}
case __ENCODED32_ENCODEDVALUE_3BYTES:
{
decodedValue = new byte[3];
decodedValue[0] = buffer[fieldBufferBase + __HEADER_ENDCODEDLENGTH + 1];
decodedValue[1] = buffer[fieldBufferBase + __HEADER_ENDCODEDLENGTH + 2];
decodedValue[2] = buffer[fieldBufferBase + __HEADER_ENDCODEDLENGTH + 3];
encodedLength = 0;
break;
}
default:
{
encodedLength = GetEncodedLength32(buffer, fieldBufferBase);
decodedValue = new byte[encodedLength];
for (int i = 0; i < encodedLength; i++)
{
decodedValue[i] = buffer[fieldBufferBase + __HEADER32_LENGTH + i];
}
break;
}
}
fieldBufferBase += __HEADER32_LENGTH + encodedLength;
break;
}
case FieldEncodingType.ByteArrayHdr32Data:
{
Int32 encodedLength;
encodedLength = GetEncodedLength32(buffer, fieldBufferBase);
if (encodedLength > 0)
{
decodedValue = new byte[encodedLength];
for (int i = 0; i < encodedLength; i++)
{
decodedValue[i] = buffer[fieldBufferBase + __HEADER32_LENGTH + i];
}
}
else
{
// Should never end up here
decodedValue = null;
encodedLength = 0;
}
fieldBufferBase += __HEADER32_LENGTH + encodedLength;
break;
}
default:
{
fieldBufferBase += buffer.Length;
decodedValue = null;
break;
}
}
return(decodedValue);
}
