public override async Task StopAsync(CancellationToken cancellationToken)
{
if (connection.State != HubConnectionState.Disconnected)
{
await connection.StopAsync();
}
Gpio.SetConnectionStatus(false);
return;
}
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
Gpio.SetConnectionStatus(false);
_logger.LogInformation("Worker started at: {time}", DateTimeOffset.Now);
string cabid, host;
try
{
var configstrs = System.IO.File.ReadAllLines("config.txt");
cabid = configstrs[0];
host = configstrs[1];
}
catch
{
_logger.LogError("Bad config, at: {time}", DateTimeOffset.Now);
return;
}
connection = new HubConnectionBuilder()
.WithUrl($"http://{host}/cabhub?cabid={cabid}")
.WithAutomaticReconnect(new MyRetryPolicy())
.Build();
connection.Reconnecting += error =>
{
Gpio.SetConnectionStatus(false);
_logger.LogWarning("Connection lost, at: {time}", DateTimeOffset.Now);
// Notify users the connection was lost and the client is reconnecting.
// Start queuing or dropping messages.
return(Task.CompletedTask);
};
connection.Reconnected += connectionId =>
{
Gpio.SetConnectionStatus(true);
_logger.LogInformation("Connection resumed, at: {time}", DateTimeOffset.Now);
// Notify users the connection was reestablished.
// Start dequeuing messages queued while reconnecting if any.
return(Task.CompletedTask);
};
connection.On <string, string>("Coin", (inputcabid, insertinfo) =>
{
int[] insertinfoarr = { }; // count, low-time-ms, high-time-ms
try
{
insertinfoarr = insertinfo.Split(',', StringSplitOptions.RemoveEmptyEntries).Select(q => int.Parse(q.Trim())).ToArray();
if (insertinfoarr.Length != 3)
{
throw new Exception("");
}
}
catch (Exception)
{
_logger.LogInformation($"Coin method input invalid, at: {DateTimeOffset.Now}");
}
_logger.LogInformation($"{insertinfoarr[0]} coin(s) inserted, low-time: {insertinfoarr[1]}, high-time: {insertinfoarr[2]} at: {DateTimeOffset.Now}");
if (inputcabid != cabid)
{
return;
}
Gpio.Coin(insertinfoarr[0], insertinfoarr[1], insertinfoarr[2]);
});
try
{
await connection.StartAsync();
_logger.LogInformation($"Connection started, at: {DateTimeOffset.Now}");
Gpio.SetConnectionStatus(true);
}
catch (Exception ex)
{
_logger.LogError($"Initial connection failed: {ex.Message}. at: { DateTimeOffset.Now}");
Environment.Exit(-1);
return;
}
while (!stoppingToken.IsCancellationRequested)
{
await Task.Delay(1000, stoppingToken);
}
}