private bool TryOpenLockQueueForCollection(string subqueueName, out MsmqQueue lockQueue)
{
lockQueue = null;
string formatName = base.formatName + ";" + subqueueName;
int accessMode = 1;
int shareMode = 1;
try
{
int error = 0;
if (MsmqQueue.IsQueueOpenable(formatName, accessMode, shareMode, out error))
{
lockQueue = new MsmqQueue(formatName, accessMode, shareMode);
lockQueue.EnsureOpen();
}
else
{
if ((error != -1072824311) && (error != -1072824317))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new MsmqException(System.ServiceModel.SR.GetString("MsmqOpenError", new object[] { MsmqError.GetErrorString(error) }), error));
}
return(false);
}
}
catch (MsmqException)
{
return(false);
}
return(true);
}
private bool TryOpenLockQueueForCollection(string subqueueName, out MsmqQueue lockQueue)
{
lockQueue = null;
string formatName = this.formatName + ";" + subqueueName;
int accessMode = UnsafeNativeMethods.MQ_RECEIVE_ACCESS;
int shareMode = UnsafeNativeMethods.MQ_DENY_RECEIVE_SHARE;
try
{
int error = 0;
if (MsmqQueue.IsQueueOpenable(formatName, accessMode, shareMode, out error))
{
lockQueue = new MsmqQueue(formatName, accessMode, shareMode);
lockQueue.EnsureOpen();
}
else
{
// The lock subqueue is either being actively used by a channel or is not available.
// So, we do not have to collect this lock queue.
if (error == UnsafeNativeMethods.MQ_ERROR_SHARING_VIOLATION ||
error == UnsafeNativeMethods.MQ_ERROR_QUEUE_NOT_FOUND)
{
return(false);
}
else
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new MsmqException(SR.GetString(SR.MsmqOpenError, MsmqError.GetErrorString(error)), error));
}
}
}
catch (MsmqException)
{
// The error has already been logged. Since this function is to decide whether to collect
// the lock queue, we return false.
return(false);
}
return(true);
}