Hardware/Sensor.cs
author moel.mich
Sat, 24 Apr 2010 19:59:52 +0000
changeset 90 3333b29a1746
parent 28 9b205b2ab056
child 109 70d0c3102424
permissions -rw-r--r--
Implemented APIC based CPU enumeration (Issue 41).
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/*
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  Version: MPL 1.1/GPL 2.0/LGPL 2.1
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  The contents of this file are subject to the Mozilla Public License Version
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  1.1 (the "License"); you may not use this file except in compliance with
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  the License. You may obtain a copy of the License at
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  http://www.mozilla.org/MPL/
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  Software distributed under the License is distributed on an "AS IS" basis,
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  WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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  for the specific language governing rights and limitations under the License.
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  The Original Code is the Open Hardware Monitor code.
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  The Initial Developer of the Original Code is 
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  Michael Möller <m.moeller@gmx.ch>.
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  Portions created by the Initial Developer are Copyright (C) 2009-2010
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  the Initial Developer. All Rights Reserved.
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  Contributor(s):
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  Alternatively, the contents of this file may be used under the terms of
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  either the GNU General Public License Version 2 or later (the "GPL"), or
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  the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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  in which case the provisions of the GPL or the LGPL are applicable instead
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  of those above. If you wish to allow use of your version of this file only
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  under the terms of either the GPL or the LGPL, and not to allow others to
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  use your version of this file under the terms of the MPL, indicate your
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  decision by deleting the provisions above and replace them with the notice
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  and other provisions required by the GPL or the LGPL. If you do not delete
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  the provisions above, a recipient may use your version of this file under
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  the terms of any one of the MPL, the GPL or the LGPL.
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*/
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using System;
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using System.Collections.Generic;
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using OpenHardwareMonitor.Utilities;
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namespace OpenHardwareMonitor.Hardware {
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  public class Sensor : ISensor {
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    private string defaultName;
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    private string name;
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    private int index;
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    private SensorType sensorType;
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    private IHardware hardware;
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    private ReadOnlyArray<IParameter> parameters;
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    private float? value;
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    private float? min;
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    private float? max;
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    private float? limit;
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    private float? defaultLimit;
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    private Queue<ISensorEntry> entries = 
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      new Queue<ISensorEntry>(MAX_MINUTES * 15);
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    private float sum = 0;
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    private int count = 0;
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    private const int MAX_MINUTES = 120;
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    public Sensor(string name, int index, SensorType sensorType,
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      IHardware hardware) : this(name, index, null, sensorType, hardware, 
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      new ParameterDescription[0]) { }
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    public Sensor(string name, int index, float? limit,
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      SensorType sensorType, IHardware hardware) : this(name, index, limit, 
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      sensorType, hardware, new ParameterDescription[0]) { }    
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    public Sensor(string name, int index, float? limit, SensorType sensorType, 
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      IHardware hardware, ParameterDescription[] parameterDescriptions) 
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    {
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      this.defaultName = name;      
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      this.index = index;
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      this.defaultLimit = limit;
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      this.sensorType = sensorType;
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      this.hardware = hardware;
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      Parameter[] parameters = new Parameter[parameterDescriptions.Length];
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      for (int i = 0; i < parameters.Length; i++ ) 
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        parameters[i] = new Parameter(parameterDescriptions[i], this);
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      this.parameters = parameters;
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      string configName = Config.Settings[Identifier + "/name"];
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      if (configName != null)
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        this.name = configName;
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      else
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        this.name = name;
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      string configLimit = Config.Settings[Identifier + "/limit"];
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      if (configLimit != null && configLimit != "")
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        this.limit = float.Parse(configLimit);
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      else
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        this.limit = limit;
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    }
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    public IHardware Hardware {
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      get { return hardware; }
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    }
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    public SensorType SensorType {
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      get { return sensorType; }
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    }
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    public string Identifier {
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      get {
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        return hardware.Identifier + "/" + sensorType.ToString().ToLower() +
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          "/" + index;
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      }
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    }
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    public string Name {
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      get { 
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        return name; 
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      }
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      set {
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        if (value != "") 
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          name = value;          
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        else 
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          name = defaultName;
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        Config.Settings[Identifier + "/name"] = name;
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      }
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    }
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    public int Index {
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      get { return index; }
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    }
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    public IReadOnlyArray<IParameter> Parameters {
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      get { return parameters; }
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    }
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    public float? Value {
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      get { 
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        return value; 
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      }
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      set {
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        while (entries.Count > 0 && 
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          (DateTime.Now - entries.Peek().Time).TotalMinutes > MAX_MINUTES)
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          entries.Dequeue();
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        if (value.HasValue) {
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          sum += value.Value;
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          count++;
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          if (count == 4) {
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            entries.Enqueue(new Entry(sum / count, DateTime.Now));
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            sum = 0;
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            count = 0;
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          }
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        }
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        this.value = value;
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        if (min > value || !min.HasValue)
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          min = value;
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        if (max < value || !max.HasValue)
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          max = value;
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      }
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    }
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    public float? Min { get { return min; } }
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    public float? Max { get { return max; } }
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    public float? Limit {
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      get {
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        return limit;
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      }
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      set {
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        if (value.HasValue) {
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          limit = value;
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          Config.Settings[Identifier + "/limit"] =
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            limit.ToString();
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        } else {
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          limit = defaultLimit;
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          Config.Settings[Identifier + "/limit"] = "";          
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        }        
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      }
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    }
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    public IEnumerable<ISensorEntry> Plot {
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      get { return entries; }
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    }
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    public struct Entry : ISensorEntry {
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      private float value;
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      private DateTime time;
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      public Entry(float value, DateTime time) {
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        this.value = value;
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        this.time = time;
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      }
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      public float Value { get { return value; } }
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      public DateTime Time { get { return time; } }
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    }
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  }
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}