mirror of
https://github.com/xcp-ng/xenadmin.git
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fdbcdcf0e1
* CP-29856: Support minimum number of vCPUs in guest templates - Show a warning if the user wants to set a smaller number of vCPUs than the minimum specified in the template - Add a null check; Set the warning label text before making it visible to avoid flickering. Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
555 lines
21 KiB
C#
555 lines
21 KiB
C#
/* 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.Drawing;
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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 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 CPUMemoryEditPage : UserControl, IEditPage
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{
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private VM vm;
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bool ShowMemory = false; // If this VM has DMC, we don't show the memory controls on this page.
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private bool _ValidToSave = true;
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private decimal _OrigMemory;
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private long _OrigVCPUs;
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private long _OrigVCPUsMax;
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private long _OrigVCPUsAtStartup;
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private decimal _OrigVCPUWeight;
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private decimal _CurrentVCPUWeight;
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private bool isVcpuHotplugSupported;
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private int minVCPUs;
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// Please note that the comboBoxVCPUs control can represent two different VM properties, depending whether the VM supports vCPU hotplug or not:
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// If vCPU hotplug is supported, comboBoxVCPUs represents the maximum number of vCPUs (VCPUs_max). And the initial number of vCPUs is represented in comboBoxInitialVCPUs (which is only visible in this case)
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// If vCPU hotplug is not supported, comboBoxVCPUs represents the initial number of vCPUs (VCPUs_at_startup). In this case we will also set the VM property VCPUs_max to the same value.
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// We use the _OrigVCPUs variable to store the original value that populates this combo box (VCPUs_max if hotplug is allowed, otherwise VCPUs_at_startup)
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private ChangeMemorySettingsAction memoryAction;
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public bool ValidToSave
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{
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get
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{
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if (!_ValidToSave)
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return false;
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// Also confirm whether the user wants to save memory changes.
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// If not, don't close the properties dialog.
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if (HasMemoryChanged)
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{
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long mem = Convert.ToInt64(this.nudMemory.Value * Util.BINARY_MEGA);
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memoryAction = BallooningDialog.ConfirmAndReturnAction(Program.MainWindow, vm, mem, mem, mem, (long)vm.memory_static_max, false);
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if (memoryAction == null)
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return false;
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}
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return true;
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}
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}
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public CPUMemoryEditPage()
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{
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InitializeComponent();
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Text = Messages.CPU_AND_MEMORY;
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transparentTrackBar1.Scroll += new EventHandler(tbPriority_Scroll);
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this.nudMemory.TextChanged += new EventHandler(nudMemory_TextChanged);
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this.nudMemory.LostFocus += new EventHandler(nudMemory_LostFocus);
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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_CPU_h32bit_16;
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}
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}
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void nudMemory_LostFocus(object sender, EventArgs e)
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{
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ValidateNud(nudMemory, (decimal)vm.memory_static_max / Util.BINARY_MEGA);
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}
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private void ValidateNud(NumericUpDown nud, Decimal defaultValue)
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{
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if (!String.IsNullOrEmpty(nud.Text.Trim()))
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return;
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nud.Value = defaultValue >= nud.Minimum && defaultValue <= nud.Maximum ?
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defaultValue : nud.Maximum;
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nud.Text = nud.Value.ToString();
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}
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void nudMemory_TextChanged(object sender, EventArgs e)
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{
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decimal val;
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if (decimal.TryParse(nudMemory.Text, out val))
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{
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if (val >= nudMemory.Minimum && val <= nudMemory.Maximum)
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nudMemory_ValueChanged(null, null);
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else if (val > nudMemory.Maximum)
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ShowMemError(true, false);
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else
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ShowMemError(false, false);
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}
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if (this.nudMemory.Text == "")
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{
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_ValidToSave = false;
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}
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else
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{
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_ValidToSave = true;
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}
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}
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private void tbPriority_Scroll(object sender, EventArgs e)
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{
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_CurrentVCPUWeight = Convert.ToDecimal(Math.Pow(4.0d, Convert.ToDouble(transparentTrackBar1.Value)));
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if (transparentTrackBar1.Value == transparentTrackBar1.Max)
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_CurrentVCPUWeight--;
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}
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/// <summary>
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/// Must be a VM.
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/// </summary>
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public void SetXenObjects(IXenObject orig, IXenObject clone)
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{
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vm = (VM)clone;
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ShowMemory = Helpers.FeatureForbidden(vm, Host.RestrictDMC);
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Repopulate();
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}
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public void Repopulate()
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{
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VM vm = this.vm;
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Text = ShowMemory ? Messages.CPU_AND_MEMORY : Messages.CPU;
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if (!ShowMemory)
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lblMemory.Visible = panel2.Visible = MemWarningLabel.Visible = false;
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else if (vm.power_state != vm_power_state.Halted && vm.power_state != vm_power_state.Running)
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{
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panel2.Enabled = false;
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MemWarningLabel.Text = Messages.MEM_NOT_WHEN_SUSPENDED;
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MemWarningLabel.ForeColor = SystemColors.ControlText;
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MemWarningLabel.Visible = true;
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}
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// Since updates come in dribs and drabs, avoid error if new max and min arrive
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// out of sync and maximum < minimum.
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if (vm.memory_dynamic_max >= vm.memory_dynamic_min &&
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vm.memory_static_max >= vm.memory_static_min)
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{
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decimal min = Convert.ToDecimal(vm.memory_static_min / Util.BINARY_MEGA);
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decimal max = Convert.ToDecimal(vm.MaxMemAllowed() / Util.BINARY_MEGA);
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decimal value = Convert.ToDecimal(vm.memory_static_max / Util.BINARY_MEGA);
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// Avoid setting the range to exclude the current value: CA-40041
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if (value > max)
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max = value;
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if (value < min)
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min = value;
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this.nudMemory.Minimum = min;
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this.nudMemory.Maximum = max;
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this.nudMemory.Text = (this.nudMemory.Value = value).ToString();
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}
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Host currentHost = Helpers.GetMaster(this.vm.Connection);
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if (currentHost != null)
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{
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// Show the performance warning about vCPUs > pCPUs.
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// Don't show if the VM isn't running, since we don't know which server it will
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// run on (and so can't count the number of pCPUs).
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if ( vm.power_state == vm_power_state.Running
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&& vm.VCPUs_at_startup > currentHost.host_CPUs.Count
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&& !vm.GetIgnoreExcessiveVcpus())
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{
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lblVcpuWarning.Visible = true;
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this.tableLayoutPanel1.RowStyles[1].SizeType = SizeType.Absolute;
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this.tableLayoutPanel1.RowStyles[1].Height = 30;
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}
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else
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{
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lblVcpuWarning.Visible = false;
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}
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}
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else
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{
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lblVcpuWarning.Visible = false;
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}
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isVcpuHotplugSupported = vm.SupportsVcpuHotplug();
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minVCPUs = vm.MinVCPUs();
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label1.Text = GetRubric();
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_OrigMemory = nudMemory.Value;
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_OrigVCPUsMax = vm.VCPUs_max > 0 ? vm.VCPUs_max : 1;
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_OrigVCPUsAtStartup = vm.VCPUs_at_startup > 0 ? vm.VCPUs_at_startup : 1;
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_OrigVCPUWeight = _CurrentVCPUWeight;
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_OrigVCPUs = isVcpuHotplugSupported ? _OrigVCPUsMax : _OrigVCPUsAtStartup;
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_prevVCPUsMax = _OrigVCPUsMax; // we use variable in RefreshCurrentVCPUs for checking if VcpusAtStartup and VcpusMax were equal before VcpusMax changed
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_CurrentVCPUWeight = Convert.ToDecimal(vm.GetVcpuWeight());
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InitializeVcpuControls();
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_ValidToSave = true;
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}
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private void InitializeVcpuControls()
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{
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lblVCPUs.Text = isVcpuHotplugSupported
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? Messages.VM_CPUMEMPAGE_MAX_VCPUS_LABEL
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: Messages.VM_CPUMEMPAGE_VCPUS_LABEL;
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labelInitialVCPUs.Text = vm.power_state == vm_power_state.Halted
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? Messages.VM_CPUMEMPAGE_INITIAL_VCPUS_LABEL
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: Messages.VM_CPUMEMPAGE_CURRENT_VCPUS_LABEL;
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labelInitialVCPUs.Visible = comboBoxInitialVCPUs.Visible = isVcpuHotplugSupported;
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comboBoxInitialVCPUs.Enabled = isVcpuHotplugSupported &&
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(vm.power_state == vm_power_state.Halted ||
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vm.power_state == vm_power_state.Running);
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comboBoxVCPUs.Enabled = comboBoxTopology.Enabled = vm.power_state == vm_power_state.Halted;
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comboBoxTopology.Populate(vm.VCPUs_at_startup, vm.VCPUs_max, vm.GetCoresPerSocket(), vm.MaxCoresPerSocket());
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// CA-12941
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// We set a sensible maximum based on the template, but if the user sets something higher
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// from the CLI then use that as the maximum.
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var maxAllowed = vm.MaxVCPUsAllowed();
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long maxVCPUs = maxAllowed < _OrigVCPUs ? _OrigVCPUs : maxAllowed;
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PopulateVCPUs(maxVCPUs, _OrigVCPUs);
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if (isVcpuHotplugSupported)
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PopulateVCPUsAtStartup(_OrigVCPUsMax, _OrigVCPUsAtStartup);
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transparentTrackBar1.Value = Convert.ToInt32(Math.Log(Convert.ToDouble(vm.GetVcpuWeight())) / Math.Log(4.0d));
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panel1.Enabled = vm.power_state == vm_power_state.Halted;
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}
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private void PopulateVCPUComboBox(ComboBox comboBox, long min, long max, long currentValue, Predicate<long> isValid)
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{
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comboBox.BeginUpdate();
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comboBox.Items.Clear();
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for (long i = min; i <= max; ++i)
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{
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if (i == currentValue || isValid(i))
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comboBox.Items.Add(i);
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}
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if (currentValue > max)
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comboBox.Items.Add(currentValue);
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comboBox.SelectedItem = currentValue;
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comboBox.EndUpdate();
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}
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private void PopulateVCPUs(long maxVCPUs, long currentVCPUs)
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{
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PopulateVCPUComboBox(comboBoxVCPUs, 1, maxVCPUs, currentVCPUs, i => comboBoxTopology.IsValidVCPU(i));
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}
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private void PopulateVCPUsAtStartup(long max, long currentValue)
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{
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long min = vm.power_state == vm_power_state.Halted ? 1 : _OrigVCPUsAtStartup;
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PopulateVCPUComboBox(comboBoxInitialVCPUs, min, max, currentValue, i => true);
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}
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private string GetRubric()
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{
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StringBuilder sb = new StringBuilder();
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sb.Append(Messages.VM_CPUMEMPAGE_RUBRIC);
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// add hotplug text
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if (isVcpuHotplugSupported)
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sb.Append(Messages.VM_CPUMEMPAGE_RUBRIC_HOTPLUG);
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// add power state warning
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if (vm.power_state != vm_power_state.Halted)
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{
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sb.AppendLine();
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sb.AppendLine();
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sb.Append(isVcpuHotplugSupported ? Messages.VM_CPUMEMPAGE_MAX_VCPUS_READONLY : Messages.VCPU_ONLY_WHEN_HALTED);
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}
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// add power state warning for Current number of vCPUs
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if (isVcpuHotplugSupported && vm.power_state != vm_power_state.Halted && vm.power_state != vm_power_state.Running)
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{
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sb.Append(Messages.VM_CPUMEMPAGE_CURRENT_VCPUS_READONLY);
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}
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return sb.ToString();
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}
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public bool HasChanged
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{
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get { return HasVCPUChanged || HasMemoryChanged || HasTopologyChanged || HasVCPUsAtStartupChanged || HasVCPUWeightChanged; }
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}
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private bool HasMemoryChanged
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{
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get
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{
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return _OrigMemory != nudMemory.Value;
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}
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}
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private bool HasVCPUChanged
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{
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get
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{
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return _OrigVCPUs != (long)comboBoxVCPUs.SelectedItem;
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}
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}
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private bool HasVCPUWeightChanged
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{
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get
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{
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return _OrigVCPUWeight != _CurrentVCPUWeight;
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}
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}
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private bool HasVCPUsAtStartupChanged
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{
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get
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{
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return isVcpuHotplugSupported && _OrigVCPUsAtStartup != (long)comboBoxInitialVCPUs.SelectedItem;
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}
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}
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private bool HasTopologyChanged
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{
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get
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{
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return vm.GetCoresPerSocket() != comboBoxTopology.CoresPerSocket;
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}
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}
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private long SelectedVcpusMax
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{
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get
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{
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return (long)comboBoxVCPUs.SelectedItem;
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}
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}
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private long SelectedVcpusAtStartup
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{
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get
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{
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return isVcpuHotplugSupported ? (long)comboBoxInitialVCPUs.SelectedItem : (long)comboBoxVCPUs.SelectedItem;
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}
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}
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public AsyncAction SaveSettings()
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{
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List<AsyncAction> actions = new List<AsyncAction>();
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if (HasVCPUWeightChanged)
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{
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vm.SetVcpuWeight(Convert.ToInt32(_CurrentVCPUWeight));
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}
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if (HasVCPUChanged || HasVCPUsAtStartupChanged)
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{
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actions.Add(new ChangeVCPUSettingsAction(vm, SelectedVcpusMax, SelectedVcpusAtStartup));
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}
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if (HasTopologyChanged)
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{
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vm.SetCoresPerSocket(comboBoxTopology.CoresPerSocket);
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}
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if (HasMemoryChanged)
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{
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actions.Add(memoryAction); // Calculated in ValidToSave
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}
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if (actions.Count == 0)
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return null;
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else if (actions.Count == 1)
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return actions[0];
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else
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{
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MultipleAction multipleAction = new MultipleAction(vm.Connection, "", "", "", actions, true);
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return multipleAction;
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}
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}
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/** Show local validation balloon tooltips */
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public void ShowLocalValidationMessages() { }
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/** Unregister listeners, dispose balloon tooltips, etc. */
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public void Cleanup() { }
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/// <summary>
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/// Shows the warning dialog about vCPUs > pCPUs.
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/// </summary>
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private void lblVcpuWarning_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
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{
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if (vm == null)
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{
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System.Diagnostics.Trace.Assert(false, "Selected object should be a vm");
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}
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else
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{
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new Dialogs.VcpuWarningDialog(vm).ShowDialog();
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this.Refresh();
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}
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}
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private void nudMemory_ValueChanged(object sender, EventArgs e)
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{
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ShowMemError(false, true);
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}
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private void ShowMemError(bool showAlways, bool testValue)
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{
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if (vm == null || !ShowMemory)
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return;
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Host selectedAffinity = vm.Connection.Resolve<Host>(vm.power_state == vm_power_state.Running ? vm.resident_on : vm.affinity);
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if (selectedAffinity != null)
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{
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Host_metrics host_metrics = vm.Connection.Resolve<Host_metrics>(selectedAffinity.metrics);
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if ((showAlways || (testValue && (host_metrics != null && (double)host_metrics.memory_total < (double)nudMemory.Value * (double)Util.BINARY_MEGA))))
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{
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MemWarningLabel.Visible = true;
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}
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else
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{
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MemWarningLabel.Visible = false;
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}
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}
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}
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private void comboBoxVCPUs_SelectedIndexChanged(object sender, EventArgs e)
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{
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ValidateVCPUSettings();
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comboBoxTopology.Update((long)comboBoxVCPUs.SelectedItem);
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ValidateTopologySettings();
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RefreshCurrentVCPUs();
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}
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private void ValidateVCPUSettings()
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{
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if (vm == null || !comboBoxVCPUs.Enabled)
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return;
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Host selectedAffinity = vm.Home();
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if (selectedAffinity == null && vm.Connection.Cache.Hosts.Length == 1)
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selectedAffinity = vm.Connection.Cache.Hosts[0];
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if (selectedAffinity != null && comboBoxVCPUs.SelectedItem != null && selectedAffinity.host_CPUs.Count < SelectedVcpusMax)
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{
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VCPUWarningLabel.Text = Messages.VM_CPUMEMPAGE_VCPU_WARNING;
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VCPUWarningLabel.Visible = true;
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}
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else if (comboBoxVCPUs.SelectedItem != null && SelectedVcpusMax < minVCPUs)
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{
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VCPUWarningLabel.Text = string.Format(Messages.VM_CPUMEMPAGE_VCPU_MIN_WARNING, minVCPUs);
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VCPUWarningLabel.Visible = true;
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}
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else
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{
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VCPUWarningLabel.Visible = false;
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}
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if (comboBoxInitialVCPUs.SelectedItem != null && SelectedVcpusAtStartup < minVCPUs)
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{
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initialVCPUWarningLabel.Text = string.Format(Messages.VM_CPUMEMPAGE_VCPU_MIN_WARNING, minVCPUs);
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initialVCPUWarningLabel.Visible = true;
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}
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else
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{
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initialVCPUWarningLabel.Visible = false;
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}
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|
}
|
|
|
|
private void ValidateTopologySettings()
|
|
{
|
|
if (comboBoxVCPUs.SelectedItem != null)
|
|
labelInvalidVCPUWarning.Text = VM.ValidVCPUConfiguration((long)comboBoxVCPUs.SelectedItem, comboBoxTopology.CoresPerSocket);
|
|
}
|
|
|
|
private long _prevVCPUsMax;
|
|
|
|
private void RefreshCurrentVCPUs()
|
|
{
|
|
// refresh comboBoxInitialVCPUs if it's visible and populated
|
|
if (comboBoxInitialVCPUs.Visible && comboBoxInitialVCPUs.Items.Count > 0)
|
|
{
|
|
// VcpusAtStartup is always <= VcpusMax
|
|
// So if VcpusMax is decreased below VcpusAtStartup, then VcpusAtStartup is decreased to that number too
|
|
// If VcpusAtStartup and VcpusMax are equal, and VcpusMax is changed, then VcpusAtStartup is changed to match
|
|
// But if the numbers are unequal, and VcpusMax is changed but is still higher than VcpusAtStartup, then VcpusAtStartup is unchanged
|
|
var newValue = SelectedVcpusAtStartup;
|
|
|
|
if (SelectedVcpusMax < SelectedVcpusAtStartup)
|
|
newValue = SelectedVcpusMax;
|
|
else if (SelectedVcpusAtStartup == _prevVCPUsMax && SelectedVcpusMax != _prevVCPUsMax)
|
|
newValue = SelectedVcpusMax;
|
|
|
|
PopulateVCPUsAtStartup(SelectedVcpusMax, newValue);
|
|
_prevVCPUsMax = SelectedVcpusMax;
|
|
}
|
|
}
|
|
|
|
public String SubText
|
|
{
|
|
get
|
|
{
|
|
return ShowMemory ?
|
|
String.Format(Messages.CPU_AND_MEMORY_SUB, SelectedVcpusAtStartup, nudMemory.Value) :
|
|
String.Format(Messages.CPU_SUB, SelectedVcpusAtStartup);
|
|
}
|
|
}
|
|
|
|
private void comboBoxTopology_SelectedIndexChanged(object sender, EventArgs e)
|
|
{
|
|
ValidateTopologySettings();
|
|
}
|
|
|
|
private void comboBoxInitialVCPUs_SelectedIndexChanged(object sender, EventArgs e)
|
|
{
|
|
ValidateVCPUSettings();
|
|
}
|
|
}
|
|
}
|