/// <inheritdoc cref="IDistributedLockManager.AcquireAsync" />
public async Task <DistributedLock?> AcquireAsync(
DistributedLockSettings settings,
CancellationToken cancellationToken = default)
{
Check.NotNull(settings, nameof(settings));
if (string.IsNullOrEmpty(settings.ResourceName))
{
throw new InvalidOperationException(
"ResourceName cannot be null. Please provide a valid resource name in the settings.");
}
if (settings is NullLockSettings)
{
return(await NullLockManager.AcquireAsync(settings, cancellationToken).ConfigureAwait(false));
}
_logger.LogAcquiringLock(settings);
var stopwatch = Stopwatch.StartNew();
while (settings.AcquireTimeout == null || stopwatch.Elapsed < settings.AcquireTimeout)
{
if (await TryAcquireLockAsync(settings).ConfigureAwait(false))
{
_logger.LogLockAcquired(settings);
return(new DistributedLock(settings, this));
}
await Task.Delay(settings.AcquireRetryInterval, cancellationToken).ConfigureAwait(false);
if (cancellationToken.IsCancellationRequested)
{
break;
}
}
throw new TimeoutException(
$"Timeout waiting to get the required lock '{settings.ResourceName}'.");
}