bundles/org.simantics.nativemem/src/org/simantics/nativemem/internal/win/Psapi64.java

   1 /*******************************************************************************
   2  * Copyright (c) 2016, 2017 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     Semantum Oy - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.nativemem.internal.win;
  13
  14 import java.util.Arrays;
  15 import java.util.List;
  16
  17 import com.sun.jna.Native;
  18 import com.sun.jna.Structure;
  19 import com.sun.jna.platform.win32.WinNT.HANDLE;
  20 import com.sun.jna.win32.StdCallLibrary;
  21
  22 public interface Psapi64 extends StdCallLibrary {
  23
  24     Psapi64 INSTANCE = (Psapi64) Native.loadLibrary("Psapi", Psapi64.class);
  25
  26     /*
  27      * https://msdn.microsoft.com/en-us/library/windows/desktop/ms684874%28v=vs.85%29.aspx
  28      */
  29     public static class PROCESS_MEMORY_COUNTERS_EX extends Structure {
  30         public int cb;
  31         public int PageFaultCount;
  32         public long PeakWorkingSetSize;
  33         public long WorkingSetSize;
  34         public long QuotaPeakPagedPoolUsage;
  35         public long QuotaPagedPoolUsage;
  36         public long QuotaPeakNonPagedPoolUsage;
  37         public long QuotaNonPagedPoolUsage;
  38         public long PagefileUsage;
  39         public long PeakPagefileUsage;
  40         public long PrivateUsage;
  41
  42         @Override
  43         protected List<String> getFieldOrder() {
  44             return PROCESS_MEMORY_COUNTERS_EX_FIELDS;
  45         }
  46
  47         private static final List<String> PROCESS_MEMORY_COUNTERS_EX_FIELDS = Arrays.asList(new String[] {
  48                 "cb", "PageFaultCount",
  49                 "PeakWorkingSetSize", "WorkingSetSize",
  50                 "QuotaPeakPagedPoolUsage", "QuotaPagedPoolUsage",
  51                 "QuotaPeakNonPagedPoolUsage", "QuotaNonPagedPoolUsage",
  52                 "PagefileUsage", "PeakPagefileUsage", "PrivateUsage"
  53         });
  54
  55         public void writeTo(ProcessMemoryCounters to) {
  56             to.PageFaultCount = PageFaultCount;
  57             to.PeakWorkingSetSize = PeakWorkingSetSize;
  58             to.WorkingSetSize = WorkingSetSize;
  59             to.QuotaPeakPagedPoolUsage = QuotaPeakPagedPoolUsage;
  60             to.QuotaPagedPoolUsage = QuotaPagedPoolUsage;
  61             to.QuotaPeakNonPagedPoolUsage = QuotaPeakNonPagedPoolUsage;
  62             to.QuotaNonPagedPoolUsage = QuotaNonPagedPoolUsage;
  63             to.PagefileUsage = PagefileUsage;
  64             to.PeakPagefileUsage = PeakPagefileUsage;
  65             to.PrivateUsage = PrivateUsage;
  66         }
  67     }
  68
  69     /*
  70      * https://msdn.microsoft.com/en-us/library/windows/desktop/ms683219%28v=vs.85%29.aspx
  71      */
  72     boolean GetProcessMemoryInfo(HANDLE Process, PROCESS_MEMORY_COUNTERS_EX ppsmemCounters, int cb);
  73
  74 }