public GdsDatabase()
{
this.connection = new GdsConnection();
this.charset = Charset.DefaultCharset;
this.dialect = 3;
this.packetSize = 8192;
GC.SuppressFinalize(this);
}
public GdsEventManager(int handle, string ipAddress, int portNumber)
{
this.events = new Hashtable();
this.events = Hashtable.Synchronized(this.events);
this.handle = handle;
// Initialize the connection
if (this.connection == null)
{
this.connection = new GdsConnection();
this.connection.Connect(ipAddress, portNumber);
}
}
public GdsEventManager(int handle, string ipAddress, int portNumber)
{
this.events = new Hashtable();
this.events = Hashtable.Synchronized(this.events);
this.handle = handle;
// Initialize the connection
if (this.connection == null)
{
this.connection = new GdsConnection();
this.connection.Connect(ipAddress, portNumber);
}
}
public void Detach()
{
lock (this)
{
if (this.TransactionCount > 0)
{
throw new IscException(IscCodes.isc_open_trans, this.TransactionCount);
}
try
{
this.Send.Write(IscCodes.op_detach);
this.Send.Write(this.handle);
this.Send.Flush();
this.ReadGenericResponse();
// Close the Event Manager
this.CloseEventManager();
// Close the connection to the server
this.connection.Disconnect();
this.transactionCount = 0;
this.handle = 0;
this.dialect = 0;
this.packetSize = 0;
this.charset = null;
this.connection = null;
this.serverVersion = null;
}
catch (IOException)
{
try
{
this.connection.Disconnect();
}
catch (IOException)
{
throw new IscException(IscCodes.isc_network_error);
}
throw new IscException(IscCodes.isc_network_error);
}
}
}
public void Attach(ServiceParameterBuffer spb, string dataSource, int port, string service)
{
lock (this)
{
try
{
if (this.connection == null)
{
this.connection = new GdsConnection();
}
this.connection.Connect(dataSource, port, 8192, Charset.DefaultCharset);
this.connection.Send.Write(IscCodes.op_service_attach);
this.connection.Send.Write(0);
this.connection.Send.Write(service);
this.connection.Send.WriteBuffer(spb.ToArray());
this.connection.Send.Flush();
try
{
this.handle = this.connection.ReadGenericResponse().ObjectHandle;
}
catch (IscException)
{
try
{
this.Detach();
}
catch
{
}
throw;
}
}
catch (IOException)
{
this.connection.Disconnect();
throw new IscException(IscCodes.isc_net_write_err);
}
}
}
public void Detach()
{
lock (this)
{
if (this.TransactionCount > 0)
{
throw new IscException(IscCodes.isc_open_trans, this.TransactionCount);
}
try
{
this.Send.Write(IscCodes.op_detach);
this.Send.Write(this.handle);
this.Send.Flush();
this.ReadGenericResponse();
// Close the Event Manager
this.CloseEventManager();
// Close the connection to the server
this.connection.Disconnect();
this.transactionCount = 0;
this.handle = 0;
this.dialect = 0;
this.packetSize = 0;
this.charset = null;
this.connection = null;
this.serverVersion = null;
}
catch (IOException)
{
try
{
this.connection.Disconnect();
}
catch (IOException)
{
throw new IscException(IscCodes.isc_network_error);
}
throw new IscException(IscCodes.isc_network_error);
}
}
}
private void Dispose(bool disposing)
{
lock (this)
{
if (!this.disposed)
{
try
{
// release any unmanaged resources
this.Detach();
// release any managed resources
if (disposing)
{
this.connection = null;
this.charset = null;
this.eventManager = null;
this.serverVersion = null;
this.dialect = 0;
this.eventsId = 0;
this.handle = 0;
this.packetSize = 0;
this.warningMessage = null;
this.transactionCount = 0;
}
}
finally
{
}
this.disposed = true;
}
}
}
public GdsDatabase()
{
this.connection = new GdsConnection();
this.charset = Charset.DefaultCharset;
this.dialect = 3;
this.packetSize = 8192;
GC.SuppressFinalize(this);
}
