/// <summary>
/// Dequeue messages from a persistent message queue file at server side in batch
/// </summary>
/// <param name="key">An ASCII string for identifying a queue at server side</param>
/// <param name="d">A callback for tracking data like remaining message count within a server queue file, queue file size in bytes, message dequeued within this batch and bytes dequeued within this batch</param>
/// <param name="timeout">A time-out number in milliseconds</param>
/// <returns>true for sending the request successfully, and false for failure</returns>
public bool Dequeue(byte[] key, DDequeue d, uint timeout)
{
DAsyncResultHandler rh = null;
if (key == null)
key = new byte[0];
lock (m_csQ)
{
m_keyDequeue = key;
if (d != null)
{
rh = (ar) =>
{
ulong messageCount, fileSize, ret;
ar.Load(out messageCount).Load(out fileSize).Load(out ret);
uint messages = (uint)ret;
uint bytes = (uint)(ret >> 32);
d(messageCount, fileSize, messages, bytes);
};
m_dDequeue = d;
}
else
{
m_dDequeue = null;
}
}
using (CScopeUQueue sb = new CScopeUQueue())
{
sb.Save(key).Save(timeout);
return SendRequest(idDequeue, sb, rh);
}
}
/// <summary>
/// Dequeue messages from a persistent message queue file at server side in batch
/// </summary>
/// <param name="key">An ASCII string for identifying a queue at server side</param>
/// <param name="d">A callback for tracking data like remaining message count within a server queue file, queue file size in bytes, message dequeued within this batch and bytes dequeued within this batch</param>
/// <param name="timeout">A time-out number in milliseconds</param>
/// <param name="discarded">a callback for tracking cancel or socket closed event</param>
/// <returns>true for sending the request successfully, and false for failure</returns>
public virtual bool Dequeue(byte[] key, DDequeue d, uint timeout, DDiscarded discarded)
{
DAsyncResultHandler rh = null;
lock (m_csQ)
{
m_keyDequeue = key;
if (d != null)
{
rh = (ar) =>
{
ulong messageCount, fileSize, ret;
ar.UQueue.Load(out messageCount).Load(out fileSize).Load(out ret);
uint messages = (uint)ret;
uint bytes = (uint)(ret >> 32);
d((CAsyncQueue)ar.AsyncServiceHandler, messageCount, fileSize, messages, bytes);
};
m_dDequeue = d;
}
else
{
m_dDequeue = null;
}
}
using (CScopeUQueue sb = new CScopeUQueue())
{
CUQueue q = sb.UQueue;
q.Save(key).Save(timeout);
return(SendRequest(idDequeue, q, rh, discarded, (DOnExceptionFromServer)null));
}
}
/// <summary>
/// Dequeue messages from a persistent message queue file at server side in batch without waiting
/// </summary>
/// <param name="key">An ASCII string for identifying a queue at server side</param>
/// <param name="d">A callback for tracking data like remaining message count within a server queue file, queue file size in bytes, message dequeued within this batch and bytes dequeued within this batch</param>
/// <returns>true for sending the request successfully, and false for failure</returns>
public bool Dequeue(byte[] key, DDequeue d)
{
return Dequeue(key, d, 0);
}
/// <summary>
/// Dequeue messages from a persistent message queue file at server side in batch
/// </summary>
/// <param name="key">An ASCII string for identifying a queue at server side</param>
/// <param name="d">A callback for tracking data like remaining message count within a server queue file, queue file size in bytes, message dequeued within this batch and bytes dequeued within this batch</param>
/// <param name="timeout">A time-out number in milliseconds</param>
/// <returns>true for sending the request successfully, and false for failure</returns>
public bool Dequeue(byte[] key, DDequeue d, uint timeout)
{
return(Dequeue(key, d, timeout, null));
}
/// <summary>
/// Dequeue messages from a persistent message queue file at server side in batch without waiting
/// </summary>
/// <param name="key">An ASCII string for identifying a queue at server side</param>
/// <param name="d">A callback for tracking data like remaining message count within a server queue file, queue file size in bytes, message dequeued within this batch and bytes dequeued within this batch</param>
/// <returns>true for sending the request successfully, and false for failure</returns>
public bool Dequeue(byte[] key, DDequeue d)
{
return(Dequeue(key, d, 0, null));
}
