/// <summary>
/// Constructs and initializes a new instance of
/// <see
/// cref="Page" />
/// with a specified header and packets.
/// </summary>
/// <param name="packets">
/// A <see cref="ByteVectorCollection" /> object containing
/// packets to use for the new instance.
/// </param>
/// <param name="header">
/// A <see cref="PageHeader" /> object to use as the header of
/// the new instance.
/// </param>
/// <exception cref="ArgumentNullException">
/// <paramref name="packets" /> is <see langword="null" />.
/// </exception>
public Page(ByteVectorCollection packets, PageHeader header)
: this(header)
{
if (packets == null)
{
throw new ArgumentNullException(nameof(packets));
}
this.packets = new ByteVectorCollection(packets);
var packet_sizes = new List <int>();
// Build a page from the list of packets.
foreach (var v in packets)
{
packet_sizes.Add(v.Count);
}
header.PacketSizes = packet_sizes.ToArray();
}
/// <summary>
/// Constructs and initializes a new instance of
/// <see
/// cref="PageHeader" />
/// by copying the values from another
/// instance, offsetting the page number and applying new
/// flags.
/// </summary>
/// <param name="original">
/// A <see cref="PageHeader" /> object to copy the values
/// from.
/// </param>
/// <param name="offset">
/// A <see cref="uint" /> value specifying how much to offset
/// the page sequence number in the new instance.
/// </param>
/// <param name="flags">
/// A <see cref="PageFlags" /> value specifying the flags to
/// use in the new instance.
/// </param>
public PageHeader(PageHeader original, uint offset,
PageFlags flags)
{
version = original.version;
Flags = flags;
absolute_granular_position =
original.absolute_granular_position;
StreamSerialNumber = original.StreamSerialNumber;
PageSequenceNumber =
original.PageSequenceNumber + offset;
Size = original.Size;
DataSize = original.DataSize;
packet_sizes = new List <int>();
if (PageSequenceNumber == 0 &&
(flags & PageFlags.FirstPacketContinued) == 0)
{
Flags |= PageFlags.FirstPageOfStream;
}
}
/// <summary>
/// Constructs and intializes a new instance of
/// <see
/// cref="Page" />
/// with a specified header and no packets.
/// </summary>
/// <param name="header">
/// A <see cref="PageHeader" /> object to use as the header of
/// the new instance.
/// </param>
protected Page(PageHeader header)
{
Header = header;
packets = new ByteVectorCollection();
}