/// <summary>
/// Gets a snapshot of the security token associated with the device. This call is thread-safe.
/// </summary>
public async Task <string> GetTokenAsync(string iotHub)
{
if (!IsExpiring)
{
return(_token);
}
await _lock.WaitAsync().ConfigureAwait(false);
try
{
if (!IsExpiring)
{
return(_token);
}
_token = await SafeCreateNewToken(iotHub, _suggestedTimeToLiveSeconds).ConfigureAwait(false);
var sas = SharedAccessSignature.Parse(".", _token);
ExpiresOn = sas.ExpiresOn;
UpdateTimeBufferSeconds((int)(ExpiresOn - DateTime.UtcNow).TotalSeconds);
if (Logging.IsEnabled)
{
Logging.GenerateToken(this, ExpiresOn);
}
return(_token);
}
finally
{
_lock.Release();
}
}
/// <summary>
/// Gets a snapshot of the security token associated with the device. This call is thread-safe.
/// </summary>
public async Task <string> GetTokenAsync(string iotHub)
{
if (!IsExpiring)
{
return(_token);
}
await _lock.WaitAsync();
try
{
if (!IsExpiring)
{
return(_token);
}
_token = await SafeCreateNewToken(iotHub, _suggestedTimeToLiveSeconds);
SharedAccessSignature sas = SharedAccessSignature.Parse(".", _token);
_expiryTime = sas.ExpiresOn;
UpdateTimeBufferSeconds((int)(_expiryTime - DateTime.UtcNow).TotalSeconds);
return(_token);
}
finally
{
_lock.Release();
}
}
/// <summary>
/// Gets a snapshot of the security token associated with the device. This call is thread-safe.
/// </summary>
public async Task <string> GetTokenAsync(string iotHub)
{
if (_isDisposed)
{
if (Logging.IsEnabled)
{
Logging.Error(
this,
$"Encountered {nameof(ObjectDisposedException)} - The authentication method instance has already been disposed, so this client is no longer usable.",
nameof(GetTokenAsync));
}
throw new ObjectDisposedException(GetType().Name, "The authentication method instance has already been disposed, so this client is no longer usable. " +
"Please close and dispose your current client instance. To continue carrying out operations from your device/ module, " +
"create a new authentication method instance and use it for reinitializing your client.");
}
if (!IsExpiring)
{
return(_token);
}
await _lock.WaitAsync().ConfigureAwait(false);
try
{
if (!IsExpiring)
{
return(_token);
}
_token = await SafeCreateNewToken(iotHub, _suggestedTimeToLiveSeconds).ConfigureAwait(false);
var sas = SharedAccessSignature.Parse(".", _token);
ExpiresOn = sas.ExpiresOn;
UpdateTimeBufferSeconds((int)(ExpiresOn - DateTime.UtcNow).TotalSeconds);
if (Logging.IsEnabled)
{
Logging.GenerateToken(this, ExpiresOn);
}
return(_token);
}
finally
{
_lock.Release();
}
}
/// <summary>
/// Gets a snapshot of the security token associated with the device. This call is thread-safe.
/// </summary>
public async Task <string> GetTokenAsync(string iotHubName)
{
if (!IsExpiring)
{
return(_token);
}
await _lock.WaitAsync();
if (!IsExpiring)
{
return(_token);
}
_token = await SafeCreateNewToken(iotHubName);
SharedAccessSignature sas = SharedAccessSignature.Parse(iotHubName, _token);
_expiryTime = sas.ExpiresOn;
_lock.Release();
return(_token);
}