|
public static ClearPool ( |
||
| settings | ||
| return | void | |
/// <include file='docs/MySqlConnection.xml' path='docs/ClearPool/*'/>
public static void ClearPool(MySqlConnection connection)
{
MySqlPoolManager.ClearPool(connection.Settings);
}
/// <include file='docs/MySqlConnection.xml' path='docs/Open/*'/>
public override void Open()
{
if (State == ConnectionState.Open)
{
Throw(new InvalidOperationException(Resources.ConnectionAlreadyOpen));
}
// start up our interceptors
_exceptionInterceptor = new ExceptionInterceptor(this);
commandInterceptor = new CommandInterceptor(this);
SetState(ConnectionState.Connecting, true);
AssertPermissions();
//TODO: SUPPORT FOR 452 AND 46X
// if we are auto enlisting in a current transaction, then we will be
// treating the connection as pooled
if (Settings.AutoEnlist && Transaction.Current != null)
{
driver = DriverTransactionManager.GetDriverInTransaction(Transaction.Current);
if (driver != null &&
(driver.IsInActiveUse ||
!driver.Settings.EquivalentTo(this.Settings)))
{
Throw(new NotSupportedException(Resources.MultipleConnectionsInTransactionNotSupported));
}
}
MySqlConnectionStringBuilder currentSettings = Settings;
try
{
if (Settings.ConnectionProtocol == MySqlConnectionProtocol.Tcp && Settings.IsSshEnabled())
{
_sshHandler = new Ssh(
Settings.SshHostName,
Settings.SshUserName,
Settings.SshPassword,
Settings.SshKeyFile,
Settings.SshPassphrase,
Settings.SshPort,
Settings.Server,
Settings.Port,
false
);
_sshHandler.StartClient();
}
if (!Settings.Pooling || MySqlPoolManager.Hosts == null)
{
FailoverManager.Reset();
if (Settings.DnsSrv)
{
var dnsSrvRecords = DnsResolver.GetDnsSrvRecords(Settings.Server);
FailoverManager.SetHostList(dnsSrvRecords.ConvertAll(r => new FailoverServer(r.Target, r.Port, null)),
FailoverMethod.Sequential);
}
else
{
FailoverManager.ParseHostList(Settings.Server, false);
}
}
// Load balancing && Failover
if (ReplicationManager.IsReplicationGroup(Settings.Server))
{
if (driver == null)
{
ReplicationManager.GetNewConnection(Settings.Server, false, this);
}
else
{
currentSettings = driver.Settings;
}
}
else if (FailoverManager.FailoverGroup != null && !Settings.Pooling)
{
FailoverManager.AttemptConnection(this, Settings.ConnectionString, out string connectionString);
currentSettings.ConnectionString = connectionString;
}
if (Settings.Pooling)
{
if (FailoverManager.FailoverGroup != null)
{
FailoverManager.AttemptConnection(this, Settings.ConnectionString, out string connectionString, true);
currentSettings.ConnectionString = connectionString;
}
MySqlPool pool = MySqlPoolManager.GetPool(currentSettings);
if (driver == null || !driver.IsOpen)
{
driver = pool.GetConnection();
}
ProcedureCache = pool.ProcedureCache;
}
else
{
if (driver == null || !driver.IsOpen)
{
driver = Driver.Create(currentSettings);
}
ProcedureCache = new ProcedureCache((int)Settings.ProcedureCacheSize);
}
}
catch (Exception)
{
SetState(ConnectionState.Closed, true);
throw;
}
SetState(ConnectionState.Open, false);
driver.Configure(this);
if (driver.IsPasswordExpired && Settings.Pooling)
{
MySqlPoolManager.ClearPool(currentSettings);
}
if (!(driver.SupportsPasswordExpiration && driver.IsPasswordExpired))
{
if (!string.IsNullOrEmpty(Settings.Database))
{
ChangeDatabase(Settings.Database);
}
}
// setup our schema provider
_schemaProvider = new ISSchemaProvider(this);
PerfMonitor = new PerformanceMonitor(this);
// if we are opening up inside a current transaction, then autoenlist
// TODO: control this with a connection string option
if (Transaction.Current != null && Settings.AutoEnlist)
{
EnlistTransaction(Transaction.Current);
}
hasBeenOpen = true;
SetState(ConnectionState.Open, true);
}
