/// <inheritdoc/>
public async Task ActivateEndpointAsync(string id, string secret, CancellationToken ct)
{
await _lock.WaitAsync();
try {
if (_twinHosts.TryGetValue(id, out var twin) && twin.Running)
{
_logger.Debug("{id} twin already running.", id);
return;
}
_logger.Debug("{id} twin starting...", id);
_twinHosts.Remove(id);
var host = new TwinHost(this, _config, id, secret, _logger);
_twinHosts.Add(id, host);
//
// This starts and waits for the twin to be started - versus attaching which
// represents the state of the actived and supervised twins in the supervisor
// device twin.
//
await host.Started;
_logger.Information("{id} twin started.", id);
}
finally {
_lock.Release();
}
}
/// <summary>
/// Stop one twin
/// </summary>
/// <param name="id"></param>
/// <param name="twin"></param>
/// <returns></returns>
private async Task StopOneTwinAsync(string id, TwinHost twin)
{
_logger.Debug("{id} twin is stopping...", id);
try {
// Stop host async
await twin.StopAsync();
}
catch (Exception ex) {
// BUGBUG: IoT Hub client SDK throws general exceptions independent
// of what actually happened. Instead of parsing the message,
// just continue.
_logger.Debug(ex,
"{id} twin stopping raised exception, continue...", id);
}
finally {
twin.Dispose();
}
_logger.Information("{id} twin stopped.", id);
}
/// <inheritdoc/>
public async Task AttachEndpointAsync(string id, string secret)
{
await _lock.WaitAsync();
try {
if (_twinHosts.TryGetValue(id, out var twin))
{
_logger.Debug("{id} twin already attached.", id);
return;
}
_logger.Debug("Attaching endpoint {id} twin...", id);
var host = new TwinHost(this, _config, id, secret, _logger);
_twinHosts.Add(id, host);
_logger.Information("{id} twin attached to module.", id);
}
finally {
_lock.Release();
}
}
/// <inheritdoc/>
public async Task ActivateEndpointAsync(string id, string secret, CancellationToken ct)
{
try {
await _lock.WaitAsync();
if (_twinHosts.TryGetValue(id, out var twin) && twin.Running)
{
_logger.Debug("{id} twin already running.", id);
return;
}
_logger.Debug("{id} twin starting...", id);
_twinHosts.Remove(id);
var host = new TwinHost(this, _config, id, secret);
_twinHosts.Add(id, host);
await host.Started;
_logger.Information("{id} twin started.", id);
}
finally {
_lock.Release();
}
}
