/// <summary>
/// Creates a new page-locked 1D array.
/// </summary>
/// <param name="accelerator">The parent accelerator.</param>
/// <param name="extent">The number of elements to allocate.</param>
/// <param name="uninitialized">True, to allocate an uninitialized array.</param>
internal unsafe PageLockedArray1D(
Accelerator accelerator,
LongIndex1D extent,
bool uninitialized)
{
if (extent < 0L)
{
throw new ArgumentOutOfRangeException(nameof(extent));
}
#if NET5_0
array = uninitialized
? GC.AllocateUninitializedArray <T>(extent.ToIntIndex(), pinned: true)
: GC.AllocateArray <T>(extent.ToIntIndex(), pinned: true);
fixed(T *ptr = array)
Initialize(accelerator, new IntPtr(ptr), extent);
#else
Trace.WriteLineIf(
uninitialized,
RuntimeErrorMessages.NotSupportedUninitalizedArrayInitialization);
array = new T[extent];
handle = GCHandle.Alloc(array, GCHandleType.Pinned);
Initialize(accelerator, handle.AddrOfPinnedObject(), extent);
#endif
}
/// <summary cref="ISequencer{T}.ComputeSequenceElement(Index1)"/>
public int ComputeSequenceElement(LongIndex1D sequenceIndex) => MaxValue - sequenceIndex.ToIntIndex();