public void WriteVUInt64(ulong value)
{
var len = PackUnpack.LengthVUInt(value);
if ((uint)_buf.Length < (uint)len)
{
Resize(len);
}
PackUnpack.UnsafePackVUInt(ref PackUnpack.UnsafeGetAndAdvance(ref _buf, len), value, len);
}
// ReSharper disable once MemberCanBePrivate.Global used by FieldHandler.Load
public ODBSet(IInternalObjectDBTransaction tr, ODBDictionaryConfiguration config, ulong id)
{
_tr = tr;
_keyHandler = config.KeyHandler;
_id = id;
var len = PackUnpack.LengthVUInt(id);
var prefix = new byte[ObjectDB.AllDictionariesPrefixLen + len];
MemoryMarshal.GetReference(prefix.AsSpan()) = ObjectDB.AllDictionariesPrefixByte;
PackUnpack.UnsafePackVUInt(ref Unsafe.AddByteOffset(ref MemoryMarshal.GetReference(prefix.AsSpan()), (IntPtr)ObjectDB.AllDictionariesPrefixLen), id, len);
_prefix = prefix;
_keyReader = ((ReaderFun <TKey>)config.KeyReader) !;
_keyWriter = ((WriterFun <TKey>)config.KeyWriter) !;
_keyValueTr = _tr.KeyValueDBTransaction;
_count = -1;
}
public void WriteVUInt64(ulong value)
{
var len = PackUnpack.LengthVUInt(value);
if (Pos + len > End)
{
FlushBuffer();
if (Pos + len > End)
{
Span <byte> b = stackalloc byte[len];
PackUnpack.UnsafePackVUInt(ref MemoryMarshal.GetReference(b), value, len);
WriteBlock(b);
return;
}
}
PackUnpack.UnsafePackVUInt(ref Unsafe.AddByteOffset(ref MemoryMarshal.GetReference(Buf.AsSpan()), (IntPtr)Pos), value, len);
Pos += len;
}
public unsafe void WriteString(string?value)
{
if (value == null)
{
WriteByteZero();
return;
}
var l = value.Length;
if (l == 0)
{
WriteUInt8(1);
return;
}
var buf = Buf;
var pos = Pos;
var end = End;
fixed(char *strPtrStart = value)
{
var strPtr = strPtrStart;
var strPtrEnd = strPtrStart + l;
var toEncode = (uint)(l + 1);
doEncode:
var toEncodeLen = PackUnpack.LengthVUInt(toEncode);
if (pos + toEncodeLen <= end)
{
PackUnpack.UnsafePackVUInt(ref Unsafe.AddByteOffset(ref MemoryMarshal.GetReference(buf.AsSpan()), (IntPtr)pos), toEncode, toEncodeLen);
pos += toEncodeLen;
}
else
{
Pos = pos;
WriteVUInt32(toEncode);
buf = Buf;
pos = Pos;
end = End;
}
while (strPtr != strPtrEnd)
{
var c = *strPtr++;
if (c < 0x80)
{
if (pos >= end)
{
Pos = pos;
FlushBuffer();
buf = Buf;
pos = Pos;
end = End;
}
buf[pos++] = (byte)c;
}
else
{
if (char.IsHighSurrogate(c) && strPtr != strPtrEnd)
{
var c2 = *strPtr;
if (char.IsLowSurrogate(c2))
{
toEncode = (uint)((c - 0xD800) * 0x400 + (c2 - 0xDC00) + 0x10000);
strPtr++;
goto doEncode;
}
}
toEncode = c;
goto doEncode;
}
}
Pos = pos;
}
}
