public string AttemptLock(TimeSpan?timeout, byte[] lockNodeBytes)
{
var startTime = DateTime.UtcNow;
var retryCount = 0;
string ourPath = null;
var hasTheLock = false;
var isDone = false;
while (!isDone)
{
isDone = true;
try
{
ZKPaths.Mkdirs(Client, _path, false);
ourPath = Client.Create(_path, lockNodeBytes, Driver.Acl ?? Ids.OPEN_ACL_UNSAFE, CreateMode.EphemeralSequential);
hasTheLock = InternalLockLoop(startTime, timeout, ourPath);
}
catch (KeeperException.NoNodeException)
{
// gets thrown by StandardLockInternalsDriver when it can't find the lock node
// this can happen when the session expires, etc. So, if the retry allows, just try it all again
if (RetryPolicy.AllowRetry(retryCount++, DateTime.UtcNow - startTime))
{
isDone = false;
}
else
{
throw;
}
}
}
return(hasTheLock ? ourPath : null);
}