/// <summary>
///
/// </summary>
/// <returns></returns>
public CacheNotifyDataMapInfo Clone()
{
CacheNotifyDataMapInfo result = new CacheNotifyDataMapInfo();
result.Mark = this.Mark;
result.Pointer = this.Pointer;
return(result);
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public CacheNotifyDataMapInfo Clone()
{
CacheNotifyDataMapInfo result = new CacheNotifyDataMapInfo();
result.Mark = this.Mark;
result.Pointer = this.Pointer;
return result;
}
/// <summary>
/// 返回Memory Mapped中的Cache通知信息的头信息
/// </summary>
/// <returns></returns>
public static CacheNotifyDataMapInfo GetCacheNotifyDataMapInfo()
{
CacheNotifyDataMapInfo result = (CacheNotifyDataMapInfo)DoAccessor(FileMode.Open, accessor =>
{
CacheNotifyDataMapInfo mapInfo;
accessor.Read(0, out mapInfo);
return(mapInfo.Clone());
});
return(result);
}
private static void WriteOneCacheNotifyData(MemoryMappedViewAccessor accessor, ref CacheNotifyDataMapInfo mapInfo, CacheNotifyData notifyData, long currentTicks)
{
if (mapInfo.Pointer >= CacheNotifyDataMapInfo.CacheDataItemCount)
mapInfo.Pointer = 0;
long startPointer = Marshal.SizeOf(typeof(CacheNotifyDataMapInfo)) +
mapInfo.Pointer * (Marshal.SizeOf(typeof(CacheNotifyDataMapItem)) + CacheNotifyDataMapInfo.CacheDataBlockSize);
byte[] data = notifyData.ToBytes();
CacheNotifyDataMapItem item = new CacheNotifyDataMapItem();
item.Ticks = currentTicks;
item.Size = data.Length;
accessor.Write(startPointer, ref item);
long dataPointer = startPointer + Marshal.SizeOf(typeof(CacheNotifyDataMapItem));
accessor.WriteArray(dataPointer, data, 0, data.Length);
mapInfo.Pointer++;
accessor.Write(0, ref mapInfo);
UdpCacheNotifier.TotalCounters.MmfSentItemsCounter.Increment();
UdpCacheNotifier.TotalCounters.MmfSentCountPerSecond.Increment();
UdpCacheNotifier.AppInstanceCounters.MmfSentItemsCounter.Increment();
UdpCacheNotifier.AppInstanceCounters.MmfSentCountPerSecond.Increment();
UdpCacheNotifier.TotalCounters.MmfCurrentPointer.RawValue = mapInfo.Pointer;
UdpCacheNotifier.AppInstanceCounters.MmfCurrentPointer.RawValue = mapInfo.Pointer;
}
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;
}
private static void WriteOneCacheNotifyData(MemoryMappedViewAccessor accessor, ref CacheNotifyDataMapInfo mapInfo, CacheNotifyData notifyData, long currentTicks)
{
if (mapInfo.Pointer >= CacheNotifyDataMapInfo.CacheDataItemCount)
{
mapInfo.Pointer = 0;
}
long startPointer = Marshal.SizeOf(typeof(CacheNotifyDataMapInfo)) +
mapInfo.Pointer * (Marshal.SizeOf(typeof(CacheNotifyDataMapItem)) + CacheNotifyDataMapInfo.CacheDataBlockSize);
byte[] data = notifyData.ToBytes();
CacheNotifyDataMapItem item = new CacheNotifyDataMapItem();
item.Ticks = currentTicks;
item.Size = data.Length;
accessor.Write(startPointer, ref item);
long dataPointer = startPointer + Marshal.SizeOf(typeof(CacheNotifyDataMapItem));
accessor.WriteArray(dataPointer, data, 0, data.Length);
mapInfo.Pointer++;
accessor.Write(0, ref mapInfo);
UdpCacheNotifier.TotalCounters.MmfSentItemsCounter.Increment();
UdpCacheNotifier.TotalCounters.MmfSentCountPerSecond.Increment();
UdpCacheNotifier.AppInstanceCounters.MmfSentItemsCounter.Increment();
UdpCacheNotifier.AppInstanceCounters.MmfSentCountPerSecond.Increment();
UdpCacheNotifier.TotalCounters.MmfCurrentPointer.RawValue = mapInfo.Pointer;
UdpCacheNotifier.AppInstanceCounters.MmfCurrentPointer.RawValue = mapInfo.Pointer;
}
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);
}
