private static void ThrowInvalidNewCapacity(int minNewCapacity, int maxCapacity) { if (minNewCapacity < 0) { ThrowHelper.ThrowArgumentException_PositiveOrZero(minNewCapacity, ExceptionArgument.minNewCapacity); } if (minNewCapacity > maxCapacity) { ThrowHelper.ThrowArgumentOutOfRangeException_MaxCapacity(minNewCapacity, maxCapacity); } }
private static void ThrowInvalidNewCapacity(int minNewCapacity, int maxCapacity) { if ((uint)minNewCapacity > SharedConstants.TooBigOrNegative) { ThrowHelper.ThrowArgumentException_PositiveOrZero(minNewCapacity, ExceptionArgument.minNewCapacity); } if (minNewCapacity > maxCapacity) { ThrowHelper.ThrowArgumentOutOfRangeException_MaxCapacity(minNewCapacity, maxCapacity); } }
public int CalculateNewCapacity(int minNewCapacity, int maxCapacity) { if (minNewCapacity < 0) { ThrowHelper.ThrowArgumentOutOfRangeException_MinNewCapacity(minNewCapacity); } if (minNewCapacity > maxCapacity) { ThrowHelper.ThrowArgumentOutOfRangeException_MaxCapacity(minNewCapacity, maxCapacity); } const int Threshold = CalculateThreshold; // 4 MiB page if (minNewCapacity == CalculateThreshold) { return(Threshold); } int newCapacity; // If over threshold, do not double but just increase by threshold. if (minNewCapacity > Threshold) { newCapacity = minNewCapacity / Threshold * Threshold; if (newCapacity > maxCapacity - Threshold) { newCapacity = maxCapacity; } else { newCapacity += Threshold; } return(newCapacity); } // Not over threshold. Double up to 4 MiB, starting from 64. newCapacity = 64; while (newCapacity < minNewCapacity) { newCapacity <<= 1; } return(Math.Min(newCapacity, maxCapacity)); }