public MemoryChunkBuilder ReserveAligned(ulong length)
{
var necessaryOffset = MemoryAlignmentHelper.RequiredOffset(0, AllocationSize, length);
AllocationSize += length + necessaryOffset;
return(this);
}
/// <summary>
/// Reserves part of the memory region for an array of the specififed type and length.
/// The part reserved will be aligned on a <see cref="PageAlignmentBytes"/> byte boundary.
/// </summary>
/// <typeparam name="T">The type of the array elements.</typeparam>
/// <param name="length">The count of items in the array.</param>
/// <returns>A pointer to the first item in the array.</returns>
public unsafe T *GetArrayAligned <T>(ulong length)
where T : unmanaged
{
var lengthInBytes = (ulong)Unsafe.SizeOf <T>() * length;
var necessaryOffset = MemoryAlignmentHelper.RequiredOffset((ulong)_ptr, _offset, length);
Debug.Assert(_offset + lengthInBytes + necessaryOffset <= _bytesReserved);
var result = (T *)((byte *)_ptr + _offset + necessaryOffset);
_offset += lengthInBytes + necessaryOffset;
return(result);
}