public RideProcessor(string userId)
{
_outputLock = new ReaderWriterLockSlim();
UserId = userId;
// load the turbo
_spotData = new Spot();
_lastSpotData = null;
// Set-up the lease
LeaseId = GenerateLease(12);
// Set the initial timeout
LastUpdateTimestamp = DateTime.UtcNow;
_messageQueue = new Queue<InterfaceDatum>(QUEUE_CAPACITY);
_queueLock = new ReaderWriterLockSlim();
_zeroingTimer = new Timer(CheckZeroing, null, 1000, 4000);
_Rider = Rider.LoadAny(userId);
// will load either a real or virtual rider
if (_Rider != null)
{
_Turbo = TurboTrainer.Load(UserId, _Rider.CurrentTurbo, _Rider.TurboIsCalibrated);
}
}
public Spot Copy()
{
Spot newSp = new Spot();
newSp.id = id;
newSp.t = t;
newSp.s = s;
newSp.c = c;
newSp.h = h;
newSp.p = p;
return newSp;
}
public void SendSpotData(string userId, Spot spot)
{
try
{
_ConnectionProcessLock.EnterReadLock();
// Is the user connection
string connectionId;
if (_connections.TryGetValue(userId, out connectionId))
{
Context.Clients.Client(connectionId).receiveSpotData(spot);
}
}
finally
{
_ConnectionProcessLock.ExitReadLock();
}
}
private void Start(object state)
{
// set the start time before releasing the race logging
_raceStartTicks = Utilities.DbTime.ToUnsignedDbTicks(DateTime.UtcNow);
// Enable the race for all - define initial positions
int position = 1;
try
{
_SpotLock.EnterWriteLock();
foreach (Race.Participant p in Race.Participants)
{
if (p.Status == @"Scheduled")
{
// Initial spot data
Spot curSpot = new Spot();
curSpot.id = p.UserId;
curSpot.t = _raceStartTicks;
curSpot.s = 0;
curSpot.c = 0;
curSpot.h = 0;
curSpot.p = 0;
_Spots.Add(p.UserId, curSpot);
}
}
}
finally
{
_SpotLock.ExitWriteLock();
}
try
{
_RaceSpotLock.EnterWriteLock();
foreach (Race.Participant p in Race.Participants)
{
/////////////// Need to revist this!
if (p.Status == @"Scheduled")
{
// Initial Race data
RaceSpot curRaceSpot = new RaceSpot();
curRaceSpot.id = p.UserId;
curRaceSpot.d = 0;
curRaceSpot.t = 0;
curRaceSpot.s = 0;
curRaceSpot.c = 0;
curRaceSpot.k = 0;
curRaceSpot.p = 0;
curRaceSpot.e = 0;
curRaceSpot.h = 0;
curRaceSpot.b = 0;
curRaceSpot.i = 0;
curRaceSpot.v = 0;
curRaceSpot.f = false; // not finished
curRaceSpot.a = false; // not abandonned
curRaceSpot.pos = position++;
_RaceSpots.Add(p.UserId, curRaceSpot);
_RaceSpotHistory.Add(p.UserId, new Stack<RaceSpot>());
// Need to clone here or the stack will just contain a reference to the original
_RaceSpotHistory[p.UserId].Push(curRaceSpot.Copy());
}
}
// tell the db
Race.Start();
}
finally
{
_RaceSpotLock.ExitWriteLock();
}
// Attach the race Processors
CycliManager.Instance.AttachRiderProcessors(this, Race);
// Start the race
CycliManager.Instance.SendStartRace(Race);
// Start the updater thread
_UpdateRaceSpotTimer = new Timer(UpdateRaceSpotData, null, 0, 1000);
}
private void ProcessMessage(InterfaceDatum p)
{
try
{
if (_outputLock.TryEnterWriteLock(OUTPUT_LOCK_TIMEOUT_MS))
{
if (_lastMessage != null)
{
_lastSpotData = _spotData.Copy();
_spotData.id = UserId;
_spotData.t = Utilities.DbTime.ToUnsignedDbTicks(DateTime.UtcNow);
// heartrate is easy - just check its not a reset
_spotData.h = p.h;
// Speed
if (p.wt > 0)
{
double deltaDistance = 0.000001 * (double)p.w * (double)_Rider.BikeWheelSizeMm * Math.PI;
_spotData.s = (float)(deltaDistance * 1024 * 3600 / (double)p.wt); // kmph
}
// Cadence
if (p.pt > 0)
{
_spotData.c = (int)(60 * 1024 * (double)p.p / (double)p.pt);
}
// Power
if (_Rider.EstimatedPower && _Turbo == null)
{
_spotData.p = 0;
}
// This condition will only estimate if we're not calibrating
else if (_Rider.EstimatedPower && _calibrationTimer == null)
{
_spotData.p = (int)_Turbo.Power(_spotData.s);
}
else
{
if (p.ec > 0)
{
_spotData.p = (int)((float)p.e / (float)p.ec);
if (_lastSpotData != null)
{
// Take a time average
double dt = 0.001 * (double)(_spotData.t - _lastSpotData.t);
float sf = (float)Math.Exp(-dt / 1.7);
_spotData.p = (int)(sf * _lastSpotData.p + (1 - sf) * _spotData.p);
}
}
else
{
_spotData.p = 0;
}
}
// Are we calibrating - this
if (_calibrationTimer != null)
{
_Turbo.UpdateCalibrationData(this, _spotData);
string message = _Turbo.GetCalibrationMessage();
if (!string.IsNullOrEmpty(message))
{
CycliManager.Instance.SendCalibrationMessage(UserId, message);
}
}
}
_lastMessage = p;
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
finally
{
_outputLock.ExitWriteLock();
}
// Let the outside world know - this is outside the lock as
// the race processor will try and access the updated data
// within a read lock
System.Diagnostics.Debug.WriteLine(string.Format("Ride Process:{0} {1} {2:N2} {3:N2}", _spotData.id, _spotData.t, _spotData.s, _spotData.p));
OnSpotData();
}