public void Exit(string bookmark, string queueName)
{
CriticalSectionResumptionInfo nextInQueue = null;
lock (LockObject)
{
CriticaSectionQueue requestQueue = GetRequestQueue(queueName);
CriticalSectionResumptionInfo exiting = requestQueue.ResumptionQueue.Find(
resumptionInfo => resumptionInfo.ResumptionBookmark == bookmark);
requestQueue.ResumptionQueue.Remove(exiting);
if (exiting == requestQueue.ExecutingCriticalSection)
{
if (requestQueue.ResumptionQueue.Count > 0)
{
nextInQueue = requestQueue.ResumptionQueue[0];
requestQueue.ExecutingCriticalSection = nextInQueue;
}
else
{
requestQueue.ExecutingCriticalSection = null;
}
}
}
if (nextInQueue != null)
{
nextInQueue.WorkflowInstanceExtension._workflowInstance.BeginResumeBookmark(
new Bookmark(nextInQueue.ResumptionBookmark), null, null, null);
}
}
public long GetPriorityTicket(string queueName)
{
lock (LockObject)
{
CriticaSectionQueue requestQueue = GetRequestQueue(queueName);
return(requestQueue.GetPriorityTicket());
}
}
private static CriticaSectionQueue GetRequestQueue(string queueName)
{
CriticaSectionQueue requestQueue;
if (!RequestQueues.TryGetValue(queueName, out requestQueue))
{
requestQueue = new CriticaSectionQueue(queueName);
RequestQueues.Add(queueName, requestQueue);
}
return(requestQueue);
}
public bool Enter(string bookmark, string queueName, long priorityTicket)
{
int requestQueueCount;
lock (LockObject)
{
CriticaSectionQueue requestQueue = GetRequestQueue(queueName);
CriticalSectionResumptionInfo criticalSectionResumptionInfo =
requestQueue.Add(this, bookmark, priorityTicket);
requestQueueCount = requestQueue.ResumptionQueue.Count;
if (requestQueueCount == 1)
{
requestQueue.ExecutingCriticalSection = criticalSectionResumptionInfo;
}
}
if (requestQueueCount == 1)
{
_workflowInstance.BeginResumeBookmark(new Bookmark(bookmark), null, null, null);
return(true);
}
return(false);
}
