public static void writeChId(NaiveMultiplexing m, BytesView bv, int id, ref int cur)
{
int idLen = m.sendChannelIdLength;
if (idLen == 1)
{
var i = id == ReservedId ? (sbyte.MinValue) : (sbyte)id;
bv[cur++] = (byte)i;
}
else if (idLen == 2)
{
var i = id == ReservedId ? (short.MinValue) : (short)id;
bv[cur++] = (byte)(i >> 8);
bv[cur++] = (byte)(i);
}
else if (idLen == 4)
{
for (int i = 4 - 1; i >= 0; i--)
{
bv[cur++] = (byte)(id >> (i * 8));
}
}
else
{
string message = $"BUG?: unexpected recvChannelIdLength ({m.recvChannelIdLength})";
Logging.error($"{m}: " + message);
throw new Exception(message);
}
}
public static Frame unpack(NaiveMultiplexing m, BytesView bv)
{
var cur = 0;
int id = getChId(m, bv, ref cur);
bv.SubSelf(cur);
return(new Frame {
Id = id, Data = bv
});
}
public BytesView pack(NaiveMultiplexing m, BytesView headerBv = null)
{
Debug.Assert(Id <= m.currentMaxId, $"Id > currentMaxId ({m})");
if (headerBv == null)
{
headerBv = new BytesView(new byte[getSendChIdLen(m)]);
}
var cur = 0;
writeChId(m, headerBv, Id, ref cur);
headerBv.len = cur;
headerBv.nextNode = Data;
return(headerBv);
}
public static int getChId(NaiveMultiplexing m, BytesView bv, ref int cur)
{
int id = 0;
int idLen = m.recvChannelIdLength;
if (idLen == 1)
{
id = (sbyte)bv[cur++];
if (id == sbyte.MinValue)
{
id = ReservedId;
}
}
else if (idLen == 2)
{
id = (short)(bv[cur++] << 8 | bv[cur++]);
if (id == short.MinValue)
{
id = ReservedId;
}
}
else if (idLen == 4)
{
for (int i = 4 - 1; i >= 0; i--)
{
id |= (bv[cur++] << (i * 8));
}
}
else
{
string message = $"BUG?: unexpected recvChannelIdLength ({idLen})";
Logging.error($"{m}: " + message);
throw new Exception(message);
}
return(id);
}
internal Channel(NaiveMultiplexing channels, int id)
{
Parent = channels;
Id = id;
State = StateEnum.Open;
}
public static int getSendChIdLen(NaiveMultiplexing m) => m.sendChannelIdLength;
public RrChannels(NaiveMultiplexing baseChannels)
{
BaseChannels = baseChannels;
}
public NaiveMChannels(NaiveMultiplexing channels) : base(channels)
{
this.OnLocalChannelCreated += TryApplyPerChannelEncryption;
this.OnRemoteChannelCreated += TryApplyPerChannelEncryption;
}