/// <summary>
/// 数据缓冲区
/// </summary>
/// <param name="node"></param>
/// <param name="onReturn"></param>
/// <param name="message"></param>
internal Buffer(Node node, AutoCSer.Net.TcpServer.ServerCallback <ReturnParameter> onReturn, ref DistributionMessageItem message)
{
Node = node;
this.onReturn = onReturn;
Data = message.Data;
BufferCount = message.OnAppendFile();
}
internal int DeSerializeBuffer(byte *read, byte[] buffer, int startIndex)
{
int size = Data.DeSerializeBuffer(read, buffer, startIndex);
BufferCount = Data.CopyToMessageQueueBufferCount();
return(size);
}
internal void Set(Buffer buffer)
{
Data = buffer.Data;
BufferCount = buffer.BufferCount;
Data.ReturnType = ReturnType.Success;
buffer.BufferCount = null;
}
internal AutoCSer.CacheServer.BufferCount OnAppendFile()
{
AutoCSer.CacheServer.BufferCount bufferCount = BufferCount;
State = DistributionMessageState.AppendFile;
BufferCount = null;
return(bufferCount);
}
/// <summary>
/// 数据缓冲区
/// </summary>
/// <param name="node"></param>
/// <param name="onReturn"></param>
/// <param name="message"></param>
internal Buffer(Node node, Func <AutoCSer.Net.TcpServer.ReturnValue <ReturnParameter>, bool> onReturn, ref DistributionMessageItem message)
{
Node = node;
this.onReturn = onReturn;
Data = message.Data;
BufferCount = message.OnAppendFile();
}
internal void FreeBuffer()
{
if (BufferCount != null)
{
BufferCount.Free();
BufferCount = null;
}
}
/// <summary>
/// 数据缓冲区
/// </summary>
/// <param name="node"></param>
/// <param name="parser"></param>
internal Buffer(Node node, ref OperationParameter.NodeParser parser)
{
Data = parser.ValueData;
onReturn = parser.OnReturn;
Node = node;
BufferCount = Data.CopyToMessageQueueBufferCount();
parser.OnReturn = null;
}
/// <summary>
/// 消息队列数据缓冲区计数
/// </summary>
/// <param name="buffer">消息队列数据缓冲区</param>
internal BufferCount(Buffer buffer)
{
data = buffer.Data;
count = buffer.BufferCount;
Identity = buffer.Identity;
data.ReturnType = ReturnType.Success;
isBufferCount = 0;
buffer.BufferCount = null;
}
/// <summary>
/// 获取数据分配缓冲区
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
internal static AutoCSer.CacheServer.BufferCount GetBufferCount(ref SubArray <byte> data)
{
if (data.Length > (int)AutoCSer.CacheServer.BufferCount.BufferSize)
{
data.Set(new byte[data.Length], 0, data.Length);
return(null);
}
AutoCSer.CacheServer.BufferCount buffer;
while (System.Threading.Interlocked.CompareExchange(ref bufferCountLock, 1, 0) != 0)
{
AutoCSer.Threading.ThreadYield.Yield(AutoCSer.Threading.ThreadYield.Type.MessageQueueGetBuffer);
}
buffer = bufferCount.Get(ref data);
bufferCountLock = 0;
if (buffer == null)
{
Monitor.Enter(newBufferCountLock);
AutoCSer.CacheServer.BufferCount oldBufferCount = bufferCount;
try
{
while (System.Threading.Interlocked.CompareExchange(ref bufferCountLock, 1, 0) != 0)
{
AutoCSer.Threading.ThreadYield.Yield(AutoCSer.Threading.ThreadYield.Type.MessageQueueGetBuffer);
}
buffer = oldBufferCount.Get(ref data);
bufferCountLock = 0;
if (buffer == null)
{
AutoCSer.CacheServer.BufferCount newBufferCount = new AutoCSer.CacheServer.BufferCount();
buffer = newBufferCount.Get(ref data);
if (newBufferCount.Size > oldBufferCount.Size)
{
bufferCount = newBufferCount;
oldBufferCount.Free();
}
else
{
newBufferCount.Free();
}
}
}
finally { Monitor.Exit(newBufferCountLock); }
}
return(buffer);
}
/// <summary>
/// 获取数据分配缓冲区
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
internal static AutoCSer.CacheServer.BufferCount GetBufferCount(ref SubArray <byte> data)
{
if (data.Length > (int)AutoCSer.CacheServer.BufferCount.BufferSize)
{
data.Set(new byte[data.Length], 0, data.Length);
return(null);
}
AutoCSer.CacheServer.BufferCount buffer;
bufferCountLock.EnterYield();
buffer = bufferCount.Get(ref data);
bufferCountLock.Exit();
if (buffer == null)
{
Monitor.Enter(newBufferCountLock);
AutoCSer.CacheServer.BufferCount oldBufferCount = bufferCount;
try
{
bufferCountLock.EnterYield();
buffer = oldBufferCount.Get(ref data);
bufferCountLock.Exit();
if (buffer == null)
{
AutoCSer.CacheServer.BufferCount newBufferCount = new AutoCSer.CacheServer.BufferCount();
buffer = newBufferCount.Get(ref data);
if (newBufferCount.Size > oldBufferCount.Size)
{
bufferCount = newBufferCount;
oldBufferCount.Free();
}
else
{
newBufferCount.Free();
}
}
}
finally { Monitor.Exit(newBufferCountLock); }
}
return(buffer);
}
internal void Set(ref BufferCount bufferCount)
{
BufferCount = bufferCount.Get(out Data);
}
