private static long InnerReadCacheNotifyData(long lastTicks, MemoryMappedViewAccessor accessor, CacheNotifyDataMapInfo mapInfo, List <CacheNotifyData> result)
{
int itemSize = Marshal.SizeOf(typeof(CacheNotifyDataMapItem));
long returnTicks = lastTicks;
long startPointer = Marshal.SizeOf(typeof(CacheNotifyDataMapInfo));
for (int i = 0; i < CacheNotifyDataMapInfo.CacheDataItemCount; i++)
{
CacheNotifyDataMapItem item;
accessor.Read(startPointer, out item);
if (item.Ticks > lastTicks)
{
if (item.Ticks > returnTicks)
{
returnTicks = item.Ticks;
}
byte[] data = new byte[item.Size];
accessor.ReadArray(startPointer + itemSize, data, 0, (int)item.Size);
CacheNotifyData cnd = CacheNotifyData.FromBuffer(data);
result.Add(cnd);
}
startPointer += itemSize + CacheNotifyDataMapInfo.CacheDataBlockSize;
}
return(returnTicks);
}
/// <summary>
/// 获取数据
/// </summary>
/// <returns></returns>
public override CacheNotifyData[] GetData()
{
CacheNotifyData[] result = CacheNotifyData.EmptyData;
try
{
byte[] recBuffer = udp.Receive(ref bindedEndPoint);
CacheNotifyData data = CacheNotifyData.FromBuffer(recBuffer);
result = new CacheNotifyData[] { data };
UdpCacheNotifier.TotalCounters.UdpReceivedItemsCounter.Increment();
UdpCacheNotifier.TotalCounters.UdpReceivedCountPerSecond.Increment();
UdpCacheNotifier.AppInstanceCounters.UdpReceivedItemsCounter.Increment();
UdpCacheNotifier.AppInstanceCounters.UdpReceivedCountPerSecond.Increment();
CacheNotifierSettings settings = CacheNotifierSettings.GetConfig();
if (settings.ForwardUdpToMmf && settings.EnableMmfNotifier)
{
CacheNotifyDataMap.WriteNotExistCacheNotifyData(DateTime.Now.Ticks, result);
UdpCacheNotifier.TotalCounters.ForwardedUdpToMmfItems.Increment();
UdpCacheNotifier.TotalCounters.ForwardUdpToMmfCountPerSecond.Increment();
UdpCacheNotifier.AppInstanceCounters.ForwardedUdpToMmfItems.Increment();
UdpCacheNotifier.AppInstanceCounters.ForwardUdpToMmfCountPerSecond.Increment();
}
}
catch (SocketException ex)
{
if (ex.SocketErrorCode != SocketError.TimedOut)
{
throw;
}
}
return(result);
}