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319 lines
11 KiB
C#
319 lines
11 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.Windows.Forms;
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using XenAPI;
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using XenAdmin.Controls;
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using XenAdmin.Controls.Ballooning;
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using XenAdmin.Core;
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namespace XenAdmin.Wizards.NewVMWizard
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{
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public partial class Page_CpuMem : XenTabPage
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{
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private VM Template;
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int memoryMode = 1; // number of spinners to show: 1 for just "memory", 2 for "minimum" and "maximum", 3 for "static max" too
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double memoryRatio = 0.0; // the permitted ratio of dynamic_min / static_max
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bool initialising = true;
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public Page_CpuMem()
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{
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InitializeComponent();
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}
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public override string Text
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{
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get { return Messages.NEWVMWIZARD_CPUMEMPAGE_NAME; }
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}
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public override string PageTitle
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{
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get { return Messages.NEWVMWIZARD_CPUMEMPAGE_TITLE; }
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}
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public override string HelpID
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{
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get { return "CPU&Memory"; }
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}
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public override void PageLoaded(PageLoadedDirection direction)
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{
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base.PageLoaded(direction);
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if (SelectedTemplate == Template)
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return;
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initialising = true;
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Template = SelectedTemplate;
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if (Template.has_ballooning && Helpers.MidnightRideOrGreater(Template.Connection) && !Helpers.FeatureForbidden(Template, Host.RestrictDMC))
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memoryMode = (Template.memory_dynamic_max == Template.memory_static_max ? 2 : 3);
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else
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memoryMode = 1;
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memoryRatio = VMMemoryControlsEdit.GetMemoryRatio(Template);
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VcpuSpinner.Minimum = 1;
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VcpuSpinner.Maximum = (decimal)(Template.MaxVCPUsAllowed);
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VcpuSpinner.Value = (decimal)(Template.VCPUs_at_startup);
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FreeSpinnerLimits();
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if (memoryMode == 1)
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{
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spinnerDynMin.Initialize(Messages.MEMORY_COLON, null, Template.memory_static_max);
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spinnerDynMax.Visible = spinnerStatMax.Visible = false;
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}
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else
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{
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spinnerDynMax.Visible = true;
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spinnerDynMin.Initialize(Messages.DYNAMIC_MIN_COLON, null, Template.memory_dynamic_min);
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FreeSpinnerLimits(); // same as CA-33831
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spinnerDynMax.Initialize(Messages.DYNAMIC_MAX_COLON, null, Template.memory_dynamic_max);
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if (memoryMode == 3)
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{
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FreeSpinnerLimits();
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spinnerStatMax.Initialize(Messages.STATIC_MAX_COLON, null, Template.memory_static_max);
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}
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else
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spinnerStatMax.Visible = false;
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}
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SetSpinnerLimits();
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VcpuSpinner.Select();
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ValuesUpdated();
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initialising = false;
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}
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public VM SelectedTemplate { private get; set; }
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// Return the larger of the template's MaxMemAllowed and the template's static max,
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// to avoid crashes in the spinners (CA-40041).
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private long MaxMemAllowed
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{
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get
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{
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long msm = Template.memory_static_max;
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long mma = Template.MaxMemAllowed;
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return (msm > mma ? msm : mma);
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}
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}
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private void FreeSpinnerLimits()
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{
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long maxMemAllowed = MaxMemAllowed;
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spinnerDynMin.SetRange(0, maxMemAllowed);
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spinnerDynMax.SetRange(0, maxMemAllowed);
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spinnerStatMax.SetRange(0, maxMemAllowed);
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}
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private void SetSpinnerLimits()
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{
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long maxMemAllowed = MaxMemAllowed;
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long min = Template.memory_static_min;
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if (memoryMode == 1)
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{
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spinnerDynMin.SetRange(min, maxMemAllowed);
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return;
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}
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long min2 = (long)((double)SelectedMemoryStaticMax * memoryRatio);
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if (min < min2)
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min = min2;
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long max = SelectedMemoryDynamicMax;
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if (max < min)
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max = min;
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spinnerDynMin.SetRange(min, max);
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spinnerDynMax.SetRange(SelectedMemoryDynamicMin,
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memoryMode == 2 ? maxMemAllowed : SelectedMemoryStaticMax);
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spinnerStatMax.SetRange(SelectedMemoryDynamicMax, maxMemAllowed);
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}
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public void DisableMemoryControls()
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{
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spinnerDynMin.Enabled = false;
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spinnerDynMax.Enabled = false;
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spinnerStatMax.Enabled = false;
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}
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public long SelectedMemoryDynamicMin
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{
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get
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{
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return spinnerDynMin.Value;
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}
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}
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public long SelectedMemoryDynamicMax
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{
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get
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{
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return memoryMode == 1 ? spinnerDynMin.Value : spinnerDynMax.Value;
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}
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}
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public long SelectedMemoryStaticMax
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{
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get
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{
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return
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memoryMode == 1 ? spinnerDynMin.Value :
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memoryMode == 2 ? spinnerDynMax.Value :
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spinnerStatMax.Value;
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}
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}
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public long SelectedVcpus
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{
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get
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{
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return (long)VcpuSpinner.Value;
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}
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}
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public override List<KeyValuePair<string, string>> PageSummary
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{
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get
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{
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List<KeyValuePair<string, string>> sum = new List<KeyValuePair<string, string>>();
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sum.Add(new KeyValuePair<string, string>(Messages.NEWVMWIZARD_CPUMEMPAGE_VCPUS, SelectedVcpus.ToString()));
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if (memoryMode == 1)
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sum.Add(new KeyValuePair<string, string>(Messages.MEMORY, Util.MemorySizeString(SelectedMemoryStaticMax)));
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else
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{
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sum.Add(new KeyValuePair<string, string>(Messages.DYNAMIC_MIN, Util.MemorySizeString(SelectedMemoryDynamicMin)));
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sum.Add(new KeyValuePair<string, string>(Messages.DYNAMIC_MAX, Util.MemorySizeString(SelectedMemoryDynamicMax)));
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if (memoryMode == 3)
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sum.Add(new KeyValuePair<string, string>(Messages.STATIC_MAX, Util.MemorySizeString(SelectedMemoryStaticMax)));
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}
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return sum;
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}
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}
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private void ValuesUpdated()
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{
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CheckForError();
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OnPageUpdated();
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}
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private void CheckForError()
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{
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long max_mem_total = 0;
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long max_mem_free = 0;
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long max_vcpus = 0;
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Host max_mem_total_host = null;
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Host max_mem_free_host = null;
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Host max_vcpus_host = null;
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foreach (Host host in Connection.Cache.Hosts)
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{
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long host_cpus = 0;
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foreach (Host_cpu cpu in Connection.Cache.Host_cpus)
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{
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if (cpu.host.opaque_ref.Equals(host.opaque_ref))
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host_cpus++;
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}
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Host_metrics metrics = Connection.Resolve(host.metrics);
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if (host_cpus > max_vcpus)
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{
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max_vcpus = host_cpus;
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max_vcpus_host = host;
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}
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if (metrics != null && metrics.memory_total > max_mem_total)
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{
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max_mem_total = metrics.memory_total;
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max_mem_total_host = host;
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}
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// The available memory of a server is taken to be the current memory_free,
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// plus however much we can squeeze down the existing VMs. This assumes
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// that the overhead won't increase when we create the new VM, so it
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// has false negatives.
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long memory_free = host.memory_available_calc;
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if (metrics != null && memory_free > max_mem_free)
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{
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max_mem_free = memory_free;
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max_mem_free_host = host;
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}
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}
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if (max_mem_total_host != null && SelectedMemoryDynamicMin > max_mem_total)
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{
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ErrorPanel.Visible = true;
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ErrorLabel.Text = string.Format(Messages.NEWVMWIZARD_CPUMEMPAGE_MEMORYWARN1, Helpers.GetName(max_mem_total_host), Util.MemorySizeString(max_mem_total));
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}
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else if (max_mem_free_host != null && SelectedMemoryDynamicMin > max_mem_free)
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{
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ErrorPanel.Visible = true;
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ErrorLabel.Text = string.Format(Messages.NEWVMWIZARD_CPUMEMPAGE_MEMORYWARN2, Helpers.GetName(max_mem_free_host), Util.MemorySizeString(max_mem_free));
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}
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else if (max_vcpus_host != null && SelectedVcpus > max_vcpus)
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{
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ErrorPanel.Visible = true;
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ErrorLabel.Text = string.Format(Messages.NEWVMWIZARD_CPUMEMPAGE_VCPUSWARN, Helpers.GetName(max_vcpus_host), max_vcpus);
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}
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else
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{
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ErrorPanel.Visible = false;
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}
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}
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private void vCPU_ValueChanged(object sender, EventArgs e)
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{
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ValuesUpdated();
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}
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private void memory_ValueChanged(object sender, EventArgs e)
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{
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if (initialising)
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return;
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SetSpinnerLimits();
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ValuesUpdated();
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}
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private void VcpuSpinner_Leave(object sender, EventArgs e)
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{
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if (sender is NumericUpDown)
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((Control)sender).Text = ((NumericUpDown)sender).Value.ToString();
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}
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}
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}
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