/// <summary>
/// Use heartbeat to keep the REST API listening after initialization,
/// be sure to call from a thread and not the main thread
/// </summary>
void DoHeartbeat()
{
bool reconnect = false;
if (null == _sApiChromaInstance)
{
//LogErrorOnMainThread("DoHeartbeat: ApiChromaInstance is null!");
reconnect = true;
ConnectionStatus = RECONNECT_CHROMA_API_NULL;
ThreadWaitForSecond();
}
else
{
//Uri uri = new Uri(_sApiChromaInstance.ApiClient.BasePath);
//LogOnMainThread(string.Format("Monitoring Heartbeat {0}...", uri.Port));
while (_sWaitForExit &&
null != _sApiChromaInstance)
{
DateTime timeout = DateTime.Now + TimeSpan.FromSeconds(5);
try
{
Thread thread = new Thread(new ThreadStart(() =>
{
try
{
// The Chroma API uses a heartbeat every 1 second
_sApiChromaInstance.Heartbeat();
}
catch (Exception /* ex */)
{
//Debug.LogError(string.Format("Failed to invoke action! {0}", ex));
}
}));
thread.Start();
while (_sWaitForExit &&
DateTime.Now < timeout &&
thread.IsAlive)
{
Thread.Sleep(0);
}
if (_sWaitForExit &&
timeout < DateTime.Now &&
thread.IsAlive)
{
//Debug.LogError("Heartbeat: Timeout detected!");
thread.Abort();
reconnect = true;
}
}
catch (Exception)
{
//LogErrorOnMainThread("Failed to check heartbeat!");
reconnect = true;
ConnectionStatus = RECONNECT_CHROMA_API_HEARTBEAT_FAILURE;
ThreadWaitForSecond();
}
if (timeout < DateTime.Now)
{
//LogErrorOnMainThread("Timeout detected!");
reconnect = true;
ConnectionStatus = RECONNECT_CHROMA_API_HEARTBEAT_TIMEOUT;
ThreadWaitForSecond();
}
if (reconnect)
{
break;
}
//LogOnMainThread(string.Format("Monitoring Heartbeat {0}...", uri.Port));
_sConnected = true;
_sConnecting = false;
ConnectionStatus = CONNECTED;
ThreadWaitForSecond();
}
//LogOnMainThread(string.Format("Heartbeat {0} exited", uri.Port));
_sConnected = false;
_sConnecting = false;
ConnectionStatus = NOT_CONNECTED;
ThreadWaitForSecond();
}
if (reconnect)
{
ThreadWaitForSecond();
if (_sWaitForExit)
{
RunOnMainThread(() =>
{
if (_sWaitForExit)
{
Connect();
}
});
}
}
}