public TdsConnectionPool(TdsConnectionPoolManager manager, TdsConnectionInfo info)
{
this.info = info;
this.manager = manager;
conns = new ArrayList(info.PoolMaxSize);
available = new Queue(info.PoolMaxSize);
InitializePool();
}
public void CheckNullException()
{
//set up dummy sql listener, if there is a real sql server on this
//machine at that port, in theory this part will fail, but that's ok
//becuase something will be listening on the port and that's all we
//require at this point: a listener on port 1433...
try{
Socket Listener = new Socket(AddressFamily.InterNetwork,
SocketType.Stream,
ProtocolType.Tcp);
IPAddress hostIP =Dns.GetHostEntry("localhost").AddressList[0];
IPEndPoint ep = new IPEndPoint(hostIP, 1433);
Listener.Bind(ep);
Listener.Listen(1);
} catch (Exception){
//ignore
}
//try to connect twice, in earlier failure would get null exception
//on 2nd call to pool.GetConnection();
//Most of this code ripped from sqlConnection.Open()
TdsConnectionPool pool;
TdsConnectionPoolManager sqlConnectionPools =
new TdsConnectionPoolManager(TdsVersion.tds80);
TdsConnectionInfo info=
new TdsConnectionInfo(SERVER/*dummyhost*/,1433/*port*/,
8192/*pktsize*/,15/*timeout*/,0/*minpoolsize*/,
100/*maxpoolsize*/);
pool=sqlConnectionPools.GetConnectionPool("test",info);
Tds tds=null;
//this first one succeeded regardless as long as something answered
//the phone on port 1433 of localhost
tds=pool.GetConnection();
pool.ReleaseConnection(tds);
// 2nd time thru: This will fail with nullreferenceexception
// at pool.GetConnection() unless the patch by Rob Wilkens which
// adds "result=null;" before retry in pool.getConnection() source
//First let's pretend we're calling this test fresh, as if we
//call sqlConnection.Open() again :
info=new TdsConnectionInfo(SERVER/*dummyhost*/,1433/*port*/,
8192/*pktsize*/,15/*timeout*/,0/*minpoolsize*/,
100/*maxpoolsize*/);
pool=sqlConnectionPools.GetConnectionPool("test",info);
//Then: Test for failure (will raise uncaught exception which
//causes failure of test if bug is not fixed
tds=pool.GetConnection();
pool.ReleaseConnection(tds);
//exit
}
public TdsConnectionPool (TdsConnectionPoolManager manager, TdsConnectionInfo info)
{
this.info = info;
this.manager = manager;
conns = new ArrayList (info.PoolMaxSize);
available = new Queue (info.PoolMaxSize);
InitializePool ();
}
public TdsConnectionPool (TdsConnectionPoolManager manager, TdsConnectionInfo info)
{
this.info = info;
this.manager = manager;
}