internal CircularVersionList Upsize()
{
CircularVersionList newList = new CircularVersionList(this.internalArray.Length << 1);
long localMetaIndex = Interlocked.Read(ref this.metaIndex);
int size = (int)(localMetaIndex >> 32);
int tailIndex = (int)(localMetaIndex & 0xFFFFFFFFL);
if (size == 0)
{
return(newList);
}
int headIndex =
(tailIndex - size + 1 + this.internalArray.Length) %
this.internalArray.Length;
if (tailIndex >= headIndex)
{
Array.Copy(this.internalArray, headIndex, newList.internalArray, 0, size);
}
else
{
Array.Copy(
this.internalArray,
headIndex,
newList.internalArray,
0,
this.internalArray.Length - headIndex);
Array.Copy(
this.internalArray,
0,
newList.internalArray,
this.internalArray.Length - headIndex,
tailIndex + 1);
}
newList.metaIndex = (long)size << 32 | (long)(size - 1);
return(newList);
}
public VersionList(int capacity = 8)
{
this.tailKey = -1;
this.versionList = new CircularVersionList(capacity < 0 ? VersionList.MaxCapacity : capacity);
}
