public static IModelWrapper GetOrCreateChannel(ConnectionFactory connFactory)
{
if (connFactory == null)
{
throw new ArgumentNullException("参数connFactory不能为空，请检查参数");
}
GetConnlockObj.EnterUpgradeableReadLock();///若线程用光了，得写一个连接线程，所以这里用可升级锁
IModelWrapper model = null;
try
{
foreach (var item in ConnList)
{
model = item.GetOrCreateChannel();
if (model != null)
{
return(model);
}
}
if (model == null)
{
//创建connection对象
ConnectionWrapper conn = CreateConnection(connFactory);
return(conn.GetOrCreateChannel());
}
}
finally
{
GetConnlockObj.ExitUpgradeableReadLock();
}
return(null);
}
internal static void InnerRemove(ConnectionWrapper item)
{
GetConnlockObj.EnterWriteLock();
try
{
ConnList.Remove(item);
item.Dispose();
item = null;
}
finally
{
GetConnlockObj.ExitWriteLock();
}
}
private static ConnectionWrapper CreateConnection(ConnectionFactory connFactory)
{
GetConnlockObj.EnterWriteLock();
try
{
var newConn = connFactory.CreateConnection();
ConnectionWrapper connWrapper = new ConnectionWrapper(connFactory, newConn);
ConnList.Add(connWrapper);
return(connWrapper);
}
finally
{
GetConnlockObj.ExitWriteLock();
}
}