protected override async Task ExecuteAsync(CancellationToken token)
{
_logger.LogInformation($"Heartbeat service started");
while (!token.IsCancellationRequested)
{
await Task.Delay(TimeSpan.FromSeconds(1), token);
if (_tasks.Count == 0)
{
continue;
}
DateTime now = DateTime.Now;
try
{
List <HeartbeatTask> tasks = new List <HeartbeatTask>();
lock (_tasks)
{
while (_tasks.Count > 0 && _tasks[0].NextHeartBeat < now)
{
tasks.Add(_tasks[0]);
_tasks.RemoveAt(0);
}
}
foreach (var t in tasks)
{
_logger.LogDebug($"Sending Heartbeat for token '{t.TaskToken}'");
var r = await _client.SendTaskHeartbeatAsync(new SendTaskHeartbeatRequest
{
TaskToken = t.TaskToken
}, token);
if (r.HttpStatusCode != HttpStatusCode.OK)
{
_logger.LogDebug($"Heartbeat received an error '{t.TaskToken}', cancelling worker");
t.CancellationTokenSource.Cancel();
}
else
{
RegisterHeartbeat(t.Delay, t.TaskToken, t.CancellationTokenSource);
}
}
}
catch (Exception e)
{
_logger.LogWarning(e, "Error while sending heartbeat");
}
}
_logger.LogDebug($"Heartbeat service stopped");
}
