public async Task WritePointerAsync(long index, long pointer)
{
EnsureLengthIsLargeEnough((int)index + 8);
await Data.WriteInt64Async(index, pointer).ConfigureAwait(false);
PointerOffsets.Add(index);
}
private void WriteFooter(int footerOffset)
{
long lastPointer = 0;
PointerOffsets.Sort();
foreach (var pointer in PointerOffsets)
{
var pointerRelativeIndex = pointer - lastPointer;
lastPointer = pointer;
if (pointerRelativeIndex < 128)
{
this.Write(footerOffset++, (byte)pointerRelativeIndex);
}
else
{
var workingBytes = new List <byte>();
var workingItem = pointerRelativeIndex;
workingBytes.Add((byte)(workingItem & 0x7F));
workingItem >>= 7;
while (workingItem > 0)
{
workingBytes.Add((byte)((workingItem & 0x7F) | 0x80));
workingItem >>= 7;
}
for (var i = workingBytes.Count - 1; i >= 0; i--)
{
this.Write(footerOffset++, workingBytes[i]);
}
}
}
this.Write(footerOffset++, 0); // Marks the end of the pointers
// Align to 16 bytes
var paddingLength = 0x10 - (this.Length % 0x10);
if (paddingLength != 0x10)
{
this.WritePadding(footerOffset, paddingLength);
}
}
public void WritePointer(long index, long pointer)
{
EnsureLengthIsLargeEnough((int)index + 8);
Data.WriteInt64(index, pointer);
PointerOffsets.Add(index);
}
/// <summary>
/// Registers the data at the given index as a pointer
/// </summary>
/// <param name="index">Index of the pointer</param>
public void MarkPointer(long index)
{
PointerOffsets.Add(index);
}
