public static FileRegion GetInclusion(FileRegion region1, FileRegion region2)
{
long inclusionStartOffset = Math.Min(region1.Offset, region2.Offset);
long inclusionEndOffset = Math.Max(region1.GetEndOffset(), region2.GetEndOffset());
long inclusionSize = inclusionEndOffset - inclusionStartOffset;
return(new FileRegion(inclusionStartOffset, inclusionSize));
}
public static FileRegion GetIntersection(FileRegion region1, FileRegion region2)
{
if (!region1.Intersects(region2))
{
return(new FileRegion());
}
long intersectionStartOffset = Math.Max(region1.Offset, region2.Offset);
long intersectionEndOffset = Math.Min(region1.GetEndOffset(), region2.GetEndOffset());
long intersectionSize = intersectionEndOffset - intersectionStartOffset;
return(new FileRegion(intersectionStartOffset, intersectionSize));
}
public static bool HasIntersection(FileRegion region1, FileRegion region2)
{
return(region1.GetEndOffset() >= region2.Offset &&
region2.GetEndOffset() >= region1.Offset);
}
public FileRegion GetIntersection(FileRegion other)
{
return(GetIntersection(this, other));
}
public bool Intersects(FileRegion other)
{
return(HasIntersection(this, other));
}
public bool Includes(FileRegion other)
{
return(Offset <= other.Offset && other.GetEndOffset() <= GetEndOffset());
}
