mirror of
https://github.com/xcp-ng/xenadmin.git
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371 lines
12 KiB
C#
371 lines
12 KiB
C#
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/* Copyright (c) Citrix Systems Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms,
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* with or without modification, are permitted provided
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* that the following conditions are met:
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*
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* * Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the
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* following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the
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* following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Data;
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using System.Text;
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using System.Windows.Forms;
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using XenAdmin.Actions;
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using XenAdmin.Core;
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using XenAdmin.Network;
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using XenAPI;
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using XenAdmin.Dialogs;
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namespace XenAdmin.SettingsPanels
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{
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public partial class VBDEditPage : UserControl, IEditPage
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{
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private VBD vbd;
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private VDI vdi;
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private SR sr;
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private VM vm;
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private const int MAXIMUM_PRIORITY = 7;
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private const int MINIMUM_PRIORITY = 0;
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private bool _ValidToSave = true;
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private readonly ToolTip InvalidParamToolTip;
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public VBDEditPage()
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{
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InitializeComponent();
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Text = String.Empty;
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modeComboBox.Items.Add(Messages.READ_WRITE);
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modeComboBox.Items.Add(Messages.READ_ONLY);
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diskAccessPriorityTrackBar.Max = MAXIMUM_PRIORITY;
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diskAccessPriorityTrackBar.Min = MINIMUM_PRIORITY;
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InvalidParamToolTip = new ToolTip();
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InvalidParamToolTip.IsBalloon = true;
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InvalidParamToolTip.ToolTipIcon = ToolTipIcon.Warning;
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InvalidParamToolTip.ToolTipTitle = Messages.INVALID_PARAMETER;
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}
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public Image Image
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{
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get
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{
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return Properties.Resources._000_VM_h32bit_16;
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}
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}
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public bool ValidToSave
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{
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get { return _ValidToSave; }
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}
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public void SetXenObjects(IXenObject orig, IXenObject clone)
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{
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if (!(clone is VBD))
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return;
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vbd = clone as VBD;
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if (vbd == null)
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return;
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vdi = vbd.Connection.Resolve(vbd.VDI);
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if (vdi == null)
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return;
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sr = vdi.Connection.Resolve(vdi.SR);
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if (sr == null)
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return;
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Repopulate();
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vm = vbd.Connection.Resolve(vbd.VM);
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if (vm == null)
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return;
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Text = Helpers.GetName(vm);
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devicePositionComboBox.Enabled = false;
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}
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// Work out what values to put in the device position combobox
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public void UpdateDevicePositions(Session session)
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{
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Program.AssertOffEventThread();
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List<String> devices = new List<String>();
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// Make the list of possible userdevice positions: the union of the spare get_allowed_VBD_devices...
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devices.AddRange(VM.get_allowed_VBD_devices(session, vm.opaque_ref));
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// Never allow the DVD drive device number to be used, unless it's already in use (it will be added below)
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devices.Remove("3");
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// ...with the userdevice values already in use
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foreach (VBD vbd in vm.Connection.ResolveAll(vm.VBDs))
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{
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if (devices.Contains(vbd.userdevice))
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continue;
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devices.Add(vbd.userdevice);
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}
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// Put the userdevices values into the combobox
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devices.Sort(StringUtility.NaturalCompare);
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Program.Invoke(Program.MainWindow, delegate()
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{
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devicePositionComboBox.BeginUpdate();
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try
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{
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devicePositionComboBox.Items.Clear();
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devicePositionComboBox.Items.AddRange(devices.ToArray());
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// Make sure the userdevice for the selected VBD is the one selected in the combobox
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foreach (String position in devicePositionComboBox.Items)
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{
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if (position != vbd.userdevice)
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continue;
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devicePositionComboBox.SelectedItem = position;
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break;
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}
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}
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finally
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{
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devicePositionComboBox.EndUpdate();
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devicePositionComboBox.Enabled = true;
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}
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});
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}
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public void Repopulate()
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{
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if (vbd == null || vdi == null)
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return;
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//
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// R/O field is disabled if VDI is inherently R/O (ie ISOs)
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//
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if (vbd.currently_attached)
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{
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modeComboBox.Enabled = false;
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toolTipContainer1.SetToolTip(Messages.VBD_EDIT_CURRENTLY_ATTACHED);
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}
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else
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{
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modeComboBox.Enabled = !vdi.read_only;
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toolTipContainer1.RemoveAll();
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}
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modeComboBox.SelectedIndex = vdi.read_only || vbd.read_only ? 1 : 0;
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//
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// Set QoS Value
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//
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diskAccessPriorityTrackBar.Value = vbd.IONice;
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Host master = Helpers.GetMaster(vbd.Connection);
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if (sr == null || master == null || !sr.other_config.ContainsKey("scheduler") || sr.other_config["scheduler"] != "cfq")
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{
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DiskPriorityPanel.Visible = false;
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label1.Visible = false;
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}
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else
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{
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DiskPriorityPanel.Visible = true;
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label1.Visible = true;
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if (master.RestrictQoS)
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{
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PriorityToolTipContainer.SetToolTip(Messages.FIELD_DISABLED);
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DiskPriorityPanel.Enabled = false;
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}
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else
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DiskPriorityPanel.Enabled = true;
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}
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}
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private void comboBoxDevicePosition_SelectedIndexChanged(object sender, EventArgs e)
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{
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if (DevicePosition == vbd.userdevice)
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{
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labelDevicePositionMsg.Visible = false;
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return;
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}
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foreach (VBD otherVBD in vm.Connection.ResolveAll(vm.VBDs))
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{
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if (otherVBD.userdevice != DevicePosition)
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continue;
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labelDevicePositionMsg.Text = string.Format(Messages.DEVICE_POSITION_IN_USE);
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labelDevicePositionMsg.Visible = true;
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return;
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}
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// No conflict found.
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labelDevicePositionMsg.Visible = false;
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}
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public bool HasChanged
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{
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get
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{
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return DevicePosition != vbd.userdevice
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|| (modeComboBox.SelectedItem.ToString() == Messages.READ_ONLY) != vbd.read_only
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|| (diskAccessPriorityTrackBar.Enabled && diskAccessPriorityTrackBar.Value != vbd.IONice);
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}
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}
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public void ShowLocalValidationMessages()
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{
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}
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public void Cleanup()
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{
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InvalidParamToolTip.Dispose();
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}
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private String DevicePosition
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{
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get
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{
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if (devicePositionComboBox.SelectedItem != null)
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return devicePositionComboBox.SelectedItem.ToString();
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return String.Empty;
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}
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}
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private bool DevicePositionChanged
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{
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get
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{
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return DevicePosition != vbd.userdevice;
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}
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}
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public AsyncAction SaveSettings()
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{
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// Check user has entered valid params
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if (DevicePositionChanged &&
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vdi.type == vdi_type.system &&
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DialogResult.Yes != new ThreeButtonDialog(
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new ThreeButtonDialog.Details(SystemIcons.Warning, Messages.EDIT_SYS_DISK_WARNING, Messages.EDIT_SYS_DISK_WARNING_TITLE),
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ThreeButtonDialog.ButtonYes,
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ThreeButtonDialog.ButtonNo).ShowDialog(this))
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{
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return null;
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}
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bool diskAccessPriorityEnabled = diskAccessPriorityTrackBar.Enabled;
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int diskAccessPriority = diskAccessPriorityTrackBar.Value;
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vbd_mode vbdMode = modeComboBox.SelectedIndex == 0 ? vbd_mode.RW : vbd_mode.RO;
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string devicePosition = DevicePosition;
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int priorityToSet = vbd.IONice;
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if (diskAccessPriorityEnabled)
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{
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priorityToSet = diskAccessPriority;
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}
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bool changeDevicePosition = false;
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VBD other = null;
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if (devicePosition != vbd.userdevice)
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{
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foreach (VBD otherVBD in vm.Connection.ResolveAll(vm.VBDs))
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{
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if (otherVBD.userdevice != devicePosition ||
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vbd.opaque_ref == otherVBD.opaque_ref)
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continue;
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other = otherVBD;
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break;
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}
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if (other == null)
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{
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changeDevicePosition = true;
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}
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else
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{
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// The selected userdevice is already in use. Ask the user what to do about this.
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DialogResult result = new UserDeviceDialog(devicePosition).ShowDialog(this);
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changeDevicePosition = result != DialogResult.Cancel;
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if (result == DialogResult.No || !changeDevicePosition)
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other = null;
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}
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}
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WarnUserSwap(vbd, other);
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return new VbdEditAction(vbd, vbdMode, priorityToSet, changeDevicePosition, other, devicePosition);
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}
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private static void WarnUserSwap(VBD vbd, VBD other)
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{
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VM VBDvm = vbd.Connection.Resolve(vbd.VM);
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if ((other != null && VBDvm.power_state != XenAPI.vm_power_state.Halted) &&
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(
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(vbd.currently_attached && !vbd.allowed_operations.Contains(vbd_operations.unplug))
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|| (other.currently_attached && !other.allowed_operations.Contains(vbd_operations.unplug))
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)
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)
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{
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Program.Invoke(Program.MainWindow, () => new ThreeButtonDialog(
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new ThreeButtonDialog.Details(SystemIcons.Information,
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Messages.
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DEVICE_POSITION_RESTART_REQUIRED,
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Messages.XENCENTER)).
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ShowDialog(Program.MainWindow));
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}
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}
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public String SubText
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{
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get
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{
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return String.Format(Messages.DEVICE_POSITION, DevicePosition,
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modeComboBox.SelectedItem);
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}
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}
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}
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}
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