public async Task <IActionResult> Index()
{
var url = new Uri(Url.Action("RevaleeCalled", "Home", null, Request.Scheme));
var callback = await _revalee.RequestCallbackAsync(url, DateTime.Now.AddMinutes(1));
return(View());
}
internal async Task Start()
{
if (CallbackBaseUri != null)
{
if (!IsActive)
{
if (_heartbeatTimer == null)
{
// Schedule a heartbeat on a timer
lock (_taskCollection)
{
if (_heartbeatTimer == null)
{
_heartbeatTimer = new Timer(delegate(object self)
{
try
{
if (IsActive)
{
lock (_taskCollection)
{
if (_heartbeatTimer != null)
{
_heartbeatTimer.Dispose();
_heartbeatTimer = null;
}
}
}
else
{
if (_heartbeatTimer == null)// || AppDomain.CurrentDomain.IsFinalizingForUnload())
{
return;
}
int failureCount = Interlocked.Increment(ref _heartbeatCount) - 1;
lock (_taskCollection)
{
if (_heartbeatTimer != null)
{
if (_heartbeatCount > 20)
{
// Leave current timer setting in-place
}
else if (_heartbeatCount > 13)
{
_heartbeatTimer.Change(3600000, 14400000);
}
else if (_heartbeatCount > 3)
{
_heartbeatTimer.Change(60000, 60000);
}
else if (_heartbeatCount > 2)
{
_heartbeatTimer.Change(49750, 60000);
}
}
}
if (failureCount > 0)
{
OnActivationFailure(failureCount);
}
try
{
var id = _revalee.RequestCallbackAsync(GenerateHeartbeatCallbackUri(), _clockSource.Now).Result;
}
catch (RevaleeRequestException)
{
// Ignore network errors and retry based on the timer schedule
}
}
}
catch (Exception ex)
{
// Ignore errors when already shutting down
}
}, null, 250, 10000);
}
}
}
else
{
// Schedule an on-demand heartbeat
await Schedule(this.PrepareHeartbeat());
}
}
}
}
