public async Task <IAsyncDisposable> AcquireAsync(string lockName)
{
if (string.IsNullOrEmpty(lockName))
{
throw new ArgumentNullException(nameof(lockName));
}
if (_cosmosDistributedLockClaim != null)
{
throw new DistributedLockAlreadyAcquiredException(lockName);
}
try
{
_cosmosDistributedLockClaim = new CosmosDistributedLockClaim(lockName);
var result = await _cosmosDistributedLockStore
.TryClaimLockAsync(_cosmosDistributedLockClaim)
.ConfigureAwait(false);
if (result)
{
return(this);
}
_cosmosDistributedLockClaim = null;
throw new DistributedLockNotAcquiredException(lockName, _options.Value.DistributedLocksCollection, null);
}
catch (Exception ex) when(!(ex is DistributedLockNotAcquiredException))
{
throw new DistributedLockNotAcquiredException(lockName, _options.Value.DistributedLocksCollection, ex);
}
}
public async ValueTask DisposeAsync()
{
if (string.IsNullOrEmpty(_cosmosDistributedLockClaim?.Id))
{
return;
}
await _cosmosDistributedLockStore
.ReleaseLockAsync(_cosmosDistributedLockClaim)
.ConfigureAwait(false);
_cosmosDistributedLockClaim = null;
}
