static void Init()
{
if (!Directory.Exists(AppDomain.CurrentDomain.BaseDirectory + @"App_Data\Cache\"))
{
Directory.CreateDirectory(AppDomain.CurrentDomain.BaseDirectory + @"App_Data\Cache\");
}
bool bInit = true;
if (is_client == -1)
{
string filePath = AppDomain.CurrentDomain.BaseDirectory + @"App_Data\Cache\MeMShare.txt";
try
{
objFileStream = new FileStream(filePath, FileMode.OpenOrCreate, FileAccess.Read, FileShare.None);
}
catch { }
if (objFileStream != null) //启动监听
{
try
{
server.Start();
is_client = 0;
bInit = false;
}
catch
{
if (HttpContext.Current != null)
{
HttpContext.Current.Response.Write("<center style='color:red'>共享内存模块启动失败！检查端口号 " + MemSharePort.ToString() + " 是否被占用！<br>可修改web.config 配置文件参数 <add key=\"MemSharePort\" value=\"" + MemSharePort.ToString() + "\"/> </center>");
HttpContext.Current.Response.End();
}
else
{
throw new Exception("<center style='color:red'>共享内存模块启动失败！检查端口号 " + MemSharePort.ToString() + " 是否被占用！<br>可修改web.config 配置文件参数 <add key=\"MemSharePort\" value=\"" + MemSharePort.ToString() + "\"/> </center>");
}
}
}
else
{
is_client = 1;
}
}
if (!bInit)
{
new Task(() =>
{
while (!bClose)
{
TcpClient ct = server.AcceptTcpClient();
ct.GetStream().ReadTimeout = 2000;
NewClient _ct = new NewClient(ct);
ct.GetStream().BeginRead(_ct.buffer, 0, _ct.buffer.Length, new AsyncCallback(Deal), _ct);
}
}).Start();
}
}
static int GetClient()
{
if (intconn > 0)
{
for (int i = 0; i < intconn; i++)
{
if (Interlocked.CompareExchange(ref clients[i].iUsering, 1, 0).Equals(0))
{
return(i);
}
}
}
if (intconn >= clients.Length)
{
Thread.Sleep(1);
return(GetClient());
}
int iUse = Interlocked.Increment(ref intconn);
iUse = iUse - 1;
clients[iUse] = new NewClient();
return(iUse);
}
public static string Get(string _key, int ifail = 0)
{
if (ifail > MAX_FAIL_COUNT)
{
return(string.Empty);
}
if (!IsClient)
{
Data.TryGetValue(_key.Trim(), out string _value);
return(_value);
}
else
{
int iconn = GetClient();
NewClient ct = clients[iconn];
try
{
if (ct.tcp == null || !ct.tcp.Connected)
{
ct.tcp = new TcpClient();
ct.tcp.Connect(MemShareIP, MemSharePort);
}
}
catch
{
is_client = -1;
ReleaseClient(iconn);
}
if (is_client == -1) //连接失败需要重新初始化
{
Init();
return(Get(_key, ++ifail));
}
byte[] buffer = new byte[BUFFER_LEN];
ct.tcp.Client.ReceiveTimeout = 100;
int icount = 0;
try
{
ct.tcp.Client.Send(Encoding.UTF8.GetBytes(string.Format("{0}&{1}&{2}", MyEncode(_key), "", "G")));
icount = ct.tcp.Client.Receive(buffer, 0, BUFFER_LEN, SocketFlags.None);
}
catch
{
closeConn(ref ct.tcp);
is_client = -1;
}
finally
{
ReleaseClient(iconn);
}
if (is_client == -1) //通讯失败需要重新初始化
{
Init();
return(Get(_key, ++ifail));
}
if (icount > 0)
{
return(Encoding.UTF8.GetString(buffer, 0, icount));
}
return(string.Empty);
}
}
