internal static void SafeDispose(ref OciBindHandle handle)
 {
     if (handle != null)
     {
         handle.Dispose();
     }
     handle = null;
 }
        internal void Bind(OciStatementHandle statementHandle, NativeBuffer parameterBuffer, OracleConnection connection, ref bool mustRelease, ref SafeHandle handleToBind)
        {
            if (IsDirection(this.Parameter, ParameterDirection.Output) || (this.Parameter.Value != null))
            {
                int num2;
                IntPtr ptr2;
                string parameterName = this.Parameter.ParameterName;
                OciErrorHandle errorHandle = connection.ErrorHandle;
                OciServiceContextHandle serviceContextHandle = connection.ServiceContextHandle;
                int num = 0;
                OCI.INDICATOR oK = OCI.INDICATOR.OK;
                OCI.DATATYPE ociType = this._bindingMetaType.OciType;
                IntPtr dataPtr = parameterBuffer.DangerousGetDataPtr(this._indicatorOffset);
                IntPtr alenp = parameterBuffer.DangerousGetDataPtr(this._lengthOffset);
                IntPtr valuep = parameterBuffer.DangerousGetDataPtr(this._valueOffset);
                OciHandle.SafeDispose(ref this._dateTimeDescriptor);
                if (IsDirection(this.Parameter, ParameterDirection.Input))
                {
                    if (System.Data.Common.ADP.IsNull(this._coercedValue))
                    {
                        oK = OCI.INDICATOR.ISNULL;
                        switch (ociType)
                        {
                            case OCI.DATATYPE.INT_TIMESTAMP:
                            case OCI.DATATYPE.INT_TIMESTAMP_TZ:
                            case OCI.DATATYPE.INT_TIMESTAMP_LTZ:
                                this._dateTimeDescriptor = OracleDateTime.CreateEmptyDescriptor(ociType, connection);
                                handleToBind = this._dateTimeDescriptor;
                                break;
                        }
                    }
                    else
                    {
                        num = this.PutOracleValue(this._coercedValue, parameterBuffer, this._valueOffset, this._bindingMetaType, connection, ref handleToBind);
                    }
                }
                else
                {
                    if (this._bindingMetaType.IsVariableLength)
                    {
                        num = 0;
                    }
                    else
                    {
                        num = this._bufferLength;
                    }
                    OciLobLocator.SafeDispose(ref this._locator);
                    OciHandle.SafeDispose(ref this._descriptor);
                    switch (ociType)
                    {
                        case OCI.DATATYPE.CLOB:
                        case OCI.DATATYPE.BLOB:
                        case OCI.DATATYPE.BFILE:
                            this._locator = new OciLobLocator(connection, this._bindingMetaType.OracleType);
                            handleToBind = this._locator.Descriptor;
                            break;

                        case OCI.DATATYPE.RSET:
                            this._descriptor = new OciStatementHandle(serviceContextHandle);
                            handleToBind = this._descriptor;
                            break;

                        case OCI.DATATYPE.INT_TIMESTAMP:
                        case OCI.DATATYPE.INT_TIMESTAMP_TZ:
                        case OCI.DATATYPE.INT_TIMESTAMP_LTZ:
                            this._dateTimeDescriptor = OracleDateTime.CreateEmptyDescriptor(ociType, connection);
                            handleToBind = this._dateTimeDescriptor;
                            break;
                    }
                }
                if (handleToBind != null)
                {
                    handleToBind.DangerousAddRef(ref mustRelease);
                    parameterBuffer.WriteIntPtr(this._valueOffset, handleToBind.DangerousGetHandle());
                }
                parameterBuffer.WriteInt16(this._indicatorOffset, (short) oK);
                if ((OCI.DATATYPE.LONGVARCHAR == ociType) || (OCI.DATATYPE.LONGVARRAW == ociType))
                {
                    alenp = IntPtr.Zero;
                }
                else if (this._bindAsUCS2)
                {
                    parameterBuffer.WriteInt32(this._lengthOffset, num / System.Data.Common.ADP.CharSize);
                }
                else
                {
                    parameterBuffer.WriteInt32(this._lengthOffset, num);
                }
                if (IsDirection(this.Parameter, ParameterDirection.Output))
                {
                    num2 = this._bufferLength;
                }
                else
                {
                    num2 = num;
                }
                OCI.DATATYPE dty = ociType;
                switch (ociType)
                {
                    case OCI.DATATYPE.INT_TIMESTAMP:
                        dty = OCI.DATATYPE.TIMESTAMP;
                        break;

                    case OCI.DATATYPE.INT_TIMESTAMP_TZ:
                        dty = OCI.DATATYPE.TIMESTAMP_TZ;
                        break;

                    case OCI.DATATYPE.INT_TIMESTAMP_LTZ:
                        dty = OCI.DATATYPE.TIMESTAMP_LTZ;
                        break;
                }
                int rc = TracedNativeMethods.OCIBindByName(statementHandle, out ptr2, errorHandle, parameterName, parameterName.Length, valuep, num2, dty, dataPtr, alenp, OCI.MODE.OCI_DEFAULT);
                if (rc != 0)
                {
                    this._command.Connection.CheckError(errorHandle, rc);
                }
                this._bindHandle = new OciBindHandle(statementHandle, ptr2);
                if (this._bindingMetaType.IsCharacterType)
                {
                    if (OCI.ClientVersionAtLeastOracle9i && IsDirection(this.Parameter, ParameterDirection.Output))
                    {
                        this._bindHandle.SetAttribute(OCI.ATTR.OCI_ATTR_MAXCHAR_SIZE, this._bindSize, errorHandle);
                    }
                    if ((num2 > (this._bindingMetaType.MaxBindSize / System.Data.Common.ADP.CharSize)) || (!OCI.ClientVersionAtLeastOracle9i && this._bindingMetaType.UsesNationalCharacterSet))
                    {
                        this._bindHandle.SetAttribute(OCI.ATTR.OCI_ATTR_MAXDATA_SIZE, this._bindingMetaType.MaxBindSize, errorHandle);
                    }
                    if (this._bindingMetaType.UsesNationalCharacterSet)
                    {
                        this._bindHandle.SetAttribute(OCI.ATTR.OCI_ATTR_CHARSET_FORM, 2, errorHandle);
                    }
                    if (this._bindAsUCS2)
                    {
                        this._bindHandle.SetAttribute(OCI.ATTR.OCI_ATTR_CHARSET_ID, 0x3e8, errorHandle);
                    }
                }
                GC.KeepAlive(parameterBuffer);
            }
        }
        internal void Bind(OciStatementHandle statementHandle, NativeBuffer parameterBuffer, OracleConnection connection, ref bool mustRelease, ref SafeHandle handleToBind)
        {
            if (IsDirection(this.Parameter, ParameterDirection.Output) || (this.Parameter.Value != null))
            {
                int                     num2;
                IntPtr                  ptr2;
                string                  parameterName        = this.Parameter.ParameterName;
                OciErrorHandle          errorHandle          = connection.ErrorHandle;
                OciServiceContextHandle serviceContextHandle = connection.ServiceContextHandle;
                int                     num     = 0;
                OCI.INDICATOR           oK      = OCI.INDICATOR.OK;
                OCI.DATATYPE            ociType = this._bindingMetaType.OciType;
                IntPtr                  dataPtr = parameterBuffer.DangerousGetDataPtr(this._indicatorOffset);
                IntPtr                  alenp   = parameterBuffer.DangerousGetDataPtr(this._lengthOffset);
                IntPtr                  valuep  = parameterBuffer.DangerousGetDataPtr(this._valueOffset);
                OciHandle.SafeDispose(ref this._dateTimeDescriptor);
                if (IsDirection(this.Parameter, ParameterDirection.Input))
                {
                    if (System.Data.Common.ADP.IsNull(this._coercedValue))
                    {
                        oK = OCI.INDICATOR.ISNULL;
                        switch (ociType)
                        {
                        case OCI.DATATYPE.INT_TIMESTAMP:
                        case OCI.DATATYPE.INT_TIMESTAMP_TZ:
                        case OCI.DATATYPE.INT_TIMESTAMP_LTZ:
                            this._dateTimeDescriptor = OracleDateTime.CreateEmptyDescriptor(ociType, connection);
                            handleToBind             = this._dateTimeDescriptor;
                            break;
                        }
                    }
                    else
                    {
                        num = this.PutOracleValue(this._coercedValue, parameterBuffer, this._valueOffset, this._bindingMetaType, connection, ref handleToBind);
                    }
                }
                else
                {
                    if (this._bindingMetaType.IsVariableLength)
                    {
                        num = 0;
                    }
                    else
                    {
                        num = this._bufferLength;
                    }
                    OciLobLocator.SafeDispose(ref this._locator);
                    OciHandle.SafeDispose(ref this._descriptor);
                    switch (ociType)
                    {
                    case OCI.DATATYPE.CLOB:
                    case OCI.DATATYPE.BLOB:
                    case OCI.DATATYPE.BFILE:
                        this._locator = new OciLobLocator(connection, this._bindingMetaType.OracleType);
                        handleToBind  = this._locator.Descriptor;
                        break;

                    case OCI.DATATYPE.RSET:
                        this._descriptor = new OciStatementHandle(serviceContextHandle);
                        handleToBind     = this._descriptor;
                        break;

                    case OCI.DATATYPE.INT_TIMESTAMP:
                    case OCI.DATATYPE.INT_TIMESTAMP_TZ:
                    case OCI.DATATYPE.INT_TIMESTAMP_LTZ:
                        this._dateTimeDescriptor = OracleDateTime.CreateEmptyDescriptor(ociType, connection);
                        handleToBind             = this._dateTimeDescriptor;
                        break;
                    }
                }
                if (handleToBind != null)
                {
                    handleToBind.DangerousAddRef(ref mustRelease);
                    parameterBuffer.WriteIntPtr(this._valueOffset, handleToBind.DangerousGetHandle());
                }
                parameterBuffer.WriteInt16(this._indicatorOffset, (short)oK);
                if ((OCI.DATATYPE.LONGVARCHAR == ociType) || (OCI.DATATYPE.LONGVARRAW == ociType))
                {
                    alenp = IntPtr.Zero;
                }
                else if (this._bindAsUCS2)
                {
                    parameterBuffer.WriteInt32(this._lengthOffset, num / System.Data.Common.ADP.CharSize);
                }
                else
                {
                    parameterBuffer.WriteInt32(this._lengthOffset, num);
                }
                if (IsDirection(this.Parameter, ParameterDirection.Output))
                {
                    num2 = this._bufferLength;
                }
                else
                {
                    num2 = num;
                }
                OCI.DATATYPE dty = ociType;
                switch (ociType)
                {
                case OCI.DATATYPE.INT_TIMESTAMP:
                    dty = OCI.DATATYPE.TIMESTAMP;
                    break;

                case OCI.DATATYPE.INT_TIMESTAMP_TZ:
                    dty = OCI.DATATYPE.TIMESTAMP_TZ;
                    break;

                case OCI.DATATYPE.INT_TIMESTAMP_LTZ:
                    dty = OCI.DATATYPE.TIMESTAMP_LTZ;
                    break;
                }
                int rc = TracedNativeMethods.OCIBindByName(statementHandle, out ptr2, errorHandle, parameterName, parameterName.Length, valuep, num2, dty, dataPtr, alenp, OCI.MODE.OCI_DEFAULT);
                if (rc != 0)
                {
                    this._command.Connection.CheckError(errorHandle, rc);
                }
                this._bindHandle = new OciBindHandle(statementHandle, ptr2);
                if (this._bindingMetaType.IsCharacterType)
                {
                    if (OCI.ClientVersionAtLeastOracle9i && IsDirection(this.Parameter, ParameterDirection.Output))
                    {
                        this._bindHandle.SetAttribute(OCI.ATTR.OCI_ATTR_MAXCHAR_SIZE, this._bindSize, errorHandle);
                    }
                    if ((num2 > (this._bindingMetaType.MaxBindSize / System.Data.Common.ADP.CharSize)) || (!OCI.ClientVersionAtLeastOracle9i && this._bindingMetaType.UsesNationalCharacterSet))
                    {
                        this._bindHandle.SetAttribute(OCI.ATTR.OCI_ATTR_MAXDATA_SIZE, this._bindingMetaType.MaxBindSize, errorHandle);
                    }
                    if (this._bindingMetaType.UsesNationalCharacterSet)
                    {
                        this._bindHandle.SetAttribute(OCI.ATTR.OCI_ATTR_CHARSET_FORM, 2, errorHandle);
                    }
                    if (this._bindAsUCS2)
                    {
                        this._bindHandle.SetAttribute(OCI.ATTR.OCI_ATTR_CHARSET_ID, 0x3e8, errorHandle);
                    }
                }
                GC.KeepAlive(parameterBuffer);
            }
        }