/// <summary>
/// 关闭所有连接
/// </summary>
/// <returns></returns>
public bool CloseAll()
{
_rwLock.AcquireReaderLock(-1);
List <long> list;
try
{
list = new List <long>(_socketsCache.Keys);
}
finally
{
_rwLock.ReleaseReaderLock();
}
if (list == null || list.Count <= 0)
{
return(true);
}
foreach (long socketId in list)
{
SocketTCPHandler handler = GetHandlerById(socketId);
if (handler == null)
{
continue;
}
try
{
handler.Disconnect();
}
catch { }
}
return(true);
}
/// <summary>
/// 关闭指定连接
/// </summary>
/// <param name="connectID">连接号</param>
/// <returns></returns>
public bool CloseConnect(long connectID)
{
bool result = false;
SocketTCPHandler tcpHandler = null;
_rwLock.AcquireReaderLock(-1);
try
{
if (_socketsCache.ContainsKey(connectID))
{
tcpHandler = _socketsCache[connectID];
}
}
finally
{
_rwLock.ReleaseReaderLock();//获取集合中的对象后，立即释放锁，不然会在后面的CLOSE事件里引起死锁
}
try
{
if (tcpHandler != null)
{
tcpHandler.Disconnect();
result = true;
}
}
catch
{
}
return(result);
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="connectID">连接号</param>
/// <param name="data">数据包</param>
/// <param name="dataLength">长度</param>
/// <returns></returns>
public bool Send(long connectID, byte[] data, long dataLength)
{
bool result = false;
SocketTCPHandler handler = GetHandlerById(connectID);
if (handler != null)
{
try
{
handler.Send(data);
result = true;
}
catch { };
}
return(result);
}
/// <summary>
/// 心跳检查
/// </summary>
/// <param name="state"></param>
private void AutoCheckHeartbeat(object state)
{
_rwLock.AcquireReaderLock(-1);
List <long> list;
try
{
list = new List <long>(_socketsCache.Keys);
}
finally
{
_rwLock.ReleaseReaderLock();
}
if (list == null || list.Count <= 0)
{
return;
}
foreach (long socketId in list)
{
SocketTCPHandler handler = GetHandlerById(socketId);
if (handler == null)
{
continue;
}
try
{
var result = handler.CheckHeartbeat();
if (!result)
{
//如果发送心跳包时失败，直接调用对象的断开连接接口。
handler.Disconnect();
}
}
catch { }
}
}
/// <summary>
/// 根据SOCKET ID获取处理器
/// </summary>
/// <param name="socketId"></param>
/// <returns></returns>
private SocketTCPHandler GetHandlerById(long socketId)
{
SocketTCPHandler result = null;
_rwLock.AcquireReaderLock(-1);
try
{
if (_socketsCache.ContainsKey(socketId))
{
result = _socketsCache[socketId];
}
}
catch
{
}
finally
{
_rwLock.ReleaseReaderLock();
}
return(result);
}
/// <summary>
/// 新的TCP连接处理
/// </summary>
/// <param name="socketId"></param>
/// <param name="newSocket"></param>
void _socketListener_OnNewSocketAccept(long socketId, Socket newSocket)
{
SocketTCPHandler socketHandler = new SocketTCPHandler(socketId, newSocket);
bool result = socketHandler.ReceiveAuth(); //建立连接后，第一次数据的连接效验 todo
if (result == false) //如果效验不成功，则直接关闭连接
{
socketHandler.Disconnect();
return;
}
_rwLock.AcquireWriterLock(-1);
try
{
if (!_socketsCache.ContainsKey(socketId)) //添加到缓存
{
//避免由于外面申请锁的过程中（可能时间较长或者其它原因），在此期间socket连接异常断开，此种情况则不把socket放入_socketsCache缓存
//（应该很出现这种情况）
if (socketHandler.IsConnected)
{
_socketsCache.Add(socketId, socketHandler);
}
else
{
//socket断开后，断开连接处理
socketHandler.Disconnect();
socketHandler = null;
return;
}
}
else
{
//socketId id 重复(理论上不可能出现)
//todo write error log
}
}
catch
{
//如果在新增对象到缓存出错，则直接返回； 20171214
return;
}
finally
{
_rwLock.ReleaseWriterLock();
}
socketHandler.OnConnectClose += socketHandler_OnConnectClose; //new NetEventHandler(socketHandler_OnConnectClose);//注册事件
socketHandler.OnDataArrive += socketHandler_OnDataArrive; // new DataArriveEventHandler(socketHandler_OnDataArrive);
if (this.OnAccept != null)
{
try
{
//抛出新连接事件
this.OnAccept(this, new NetEventArgs(socketId, socketHandler.IP, socketHandler.MAC, socketHandler.Port, "新连接已经建立！"));
}
catch
{
//todo write log,
}
}
}
