/// <summary>
/// 删除数据结构定义
/// </summary>
/// <param name="buffer">数据缓冲区</param>
/// <returns>被删除数据结构索引标识</returns>
internal IndexIdentity RemoveDataStructure(Buffer buffer)
{
if (CanWrite)
{
DataStructureBuffer dataStructureBuffer = new DataStructureBuffer(buffer);
HashString name = dataStructureBuffer.CacheName;
ServerDataStructure dataStructure;
if (DataStructures.TryGetValue(name, out dataStructure))
{
int index = dataStructure.Identity.Index;
FreeIndexs.Add(index);
buffer.SetIdentity(new IndexIdentity {
Index = index, Identity = Array[index].Free()
});
DataStructures.Remove(name);
onOperation(buffer);
dataStructure.Node.OnRemoved();
return(dataStructure.Identity);
}
buffer.FreeReference();
return(new IndexIdentity {
ReturnType = ReturnType.DataStructureNameNotFound
});
}
buffer.FreeReference();
return(new IndexIdentity {
ReturnType = ReturnType.CanNotWrite
});
}
/// <summary>
/// 添加数据结构定义
/// </summary>
/// <param name="buffer">数据缓冲区</param>
/// <returns>数据结构索引标识</returns>
internal IndexIdentity GetOrCreateDataStructure(Buffer buffer)
{
if (CanWrite)
{
DataStructureBuffer dataStructureBuffer = new DataStructureBuffer(buffer);
HashString name = dataStructureBuffer.CacheName;
ServerDataStructure dataStructure;
if (DataStructures.TryGetValue(name, out dataStructure))
{
if (dataStructure.IsNodeData(ref dataStructureBuffer.Data))
{
buffer.FreeReference();
return(dataStructure.Identity);
}
buffer.FreeReference();
return(new IndexIdentity {
ReturnType = ReturnType.DataStructureNameExists
});
}
OnDataStructureCreated = onDataStructureCreated;
if ((dataStructure = new ServerDataStructure(this, buffer, ref dataStructureBuffer)).Node != null)
{
int index = getFreeIndex();
DataStructures.Add(name, dataStructure);
Array[index].Set(index, dataStructure);
buffer.SetIdentity(ref dataStructure.Identity);
onOperation(buffer);
OnDataStructureCreated(dataStructure.Identity);
OnDataStructureCreated = onDataStructureCreated;
return(dataStructure.Identity);
}
buffer.FreeReference();
return(new IndexIdentity {
ReturnType = dataStructure.ReturnType
});
}
buffer.FreeReference();
return(new IndexIdentity {
ReturnType = ReturnType.CanNotWrite
});
}
/// <summary>
/// 添加数据结构定义
/// </summary>
/// <param name="buffer">数据缓冲区</param>
/// <returns></returns>
private bool loadDataStructure(Buffer buffer)
{
DataStructureBuffer dataStructureBuffer = new DataStructureBuffer(buffer);
ServerDataStructure dataStructure = new ServerDataStructure(this, buffer, ref dataStructureBuffer);
int index = dataStructureBuffer.Identity.Index;
if (loadBuffer == null)
{
if (!isRebuild && index != getFreeIndex())
{
return(false);
}
}
else if (index >= Array.Length)
{
Array = Array.copyNew(Math.Max(Array.Length << 1, Math.Max(sizeof(int), index + 1)));
}
DataStructures.Add(dataStructureBuffer.CacheName, dataStructure);
Array[index].Load(dataStructure);
return(true);
}
/// <summary>
/// 服务端数据结构定义信息
/// </summary>
/// <param name="cache">缓存管理</param>
/// <param name="buffer">数据缓冲区</param>
/// <param name="dataStructureBuffer">服务端数据结构定义数据</param>
internal unsafe ServerDataStructure(CacheManager cache, Buffer buffer, ref DataStructureBuffer dataStructureBuffer) : base(dataStructureBuffer.CacheName, dataStructureBuffer.Identity, dataStructureBuffer.Data)
{
ReturnType = ReturnType.ServerDataStructureCreateError;
fixed(byte *dataFixed = NodeData.Array)
{
byte *start = dataFixed + NodeData.Start;
DataStructureParser nodeParser = new DataStructureParser(start, start + NodeData.Length);
Type nodeType = nodeParser.Parse();
if (nodeType != null)
{
Cache.NodeInfo nodeInfo = (Cache.NodeInfo)nodeType.GetField(Cache.Node.NodeInfoFieldName, BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.FlattenHierarchy).GetValue(null);
if (nodeInfo != null)
{
if (cache.IsFile || !nodeInfo.IsCacheFile || cache.SlaveServer != null)
{
OperationParameter.NodeParser nodeParameter = new OperationParameter.NodeParser(cache, buffer, dataFixed);
nodeParameter.Read += IndexIdentity.SerializeSize;
Node = nodeInfo.CallConstructor(ref nodeParameter);
NodeData.Length = (int)(nodeParser.Read - start);
byte[] data = NodeData.GetArray();
NodeData.Set(data, 0, data.Length);
}
else
{
ReturnType = ReturnType.CacheNodeNeedFile;
}
}
else
{
ReturnType = ReturnType.NotFoundCacheNodeInfo;
}
}
else
{
ReturnType = ReturnType.CacheNodeParseError;
}
}
}
/// <summary>
/// 删除数据结构定义
/// </summary>
/// <param name="buffer">数据缓冲区</param>
/// <returns></returns>
private bool loadRemoveDataStructure(Buffer buffer)
{
DataStructureBuffer dataStructureBuffer = new DataStructureBuffer(buffer);
HashString name = dataStructureBuffer.CacheName;
ServerDataStructure dataStructure;
if (DataStructures.TryGetValue(name, out dataStructure))
{
int index = dataStructure.Identity.Index;
if (dataStructureBuffer.Identity.Index == index)
{
if (!isRebuild && loadBuffer == null)
{
FreeIndexs.Add(index);
}
Array[index].LoadFree(dataStructureBuffer.Identity.Identity);
DataStructures.Remove(name);
dataStructure.Node.OnRemoved();
return(true);
}
}
return(false);
}
/// <summary>
/// 获取数据结构索引标识
/// </summary>
/// <param name="buffer">数据缓冲区</param>
/// <returns>数据结构索引标识</returns>
internal IndexIdentity GetDataStructure(Buffer buffer)
{
DataStructureBuffer dataStructureBuffer = new DataStructureBuffer(buffer);
HashString name = dataStructureBuffer.CacheName;
ServerDataStructure dataStructure;
if (DataStructures.TryGetValue(name, out dataStructure))
{
if (dataStructure.IsNodeData(ref dataStructureBuffer.Data))
{
buffer.FreeReference();
return(dataStructure.Identity);
}
buffer.FreeReference();
return(new IndexIdentity {
ReturnType = ReturnType.DataStructureNameExists
});
}
buffer.FreeReference();
return(new IndexIdentity {
ReturnType = ReturnType.DataStructureNameNotFound
});
}