/WorldView/Utilities/Profiler.cs

  1using System;
  2using System.Collections.Generic;
  3
  4namespace MoreTerra.Utilities
  5{
  6	public class Profiler
  7	{
  8		private Dictionary<Int32, String> openIDs;
  9		private Dictionary<String, Dictionary<Int32, pTimeSpan>> profileList;
 10		private Int32 currentID;
 11
 12		#region Helper Structures
 13		class pTimeSpan
 14		{
 15			public DateTime Start;
 16			public DateTime End;
 17			public String Note;
 18
 19			public pTimeSpan(DateTime newDateTime, String newNote)
 20			{
 21				Start = newDateTime;
 22				End = new DateTime(0);
 23
 24				if (String.IsNullOrEmpty(newNote))
 25					Note = newNote;
 26				else
 27					Note = "";
 28			}
 29
 30			public TimeSpan Elapsed()
 31			{
 32				if (End.CompareTo(Start) < 0)
 33					return new TimeSpan(0);
 34
 35				return End - Start;
 36			}
 37		}
 38		#endregion
 39
 40		#region Constructors
 41		public Profiler()
 42		{
 43			openIDs = new Dictionary<Int32, String>();
 44			profileList = new Dictionary<String, Dictionary<Int32, pTimeSpan>>();
 45			currentID = 0;
 46		}
 47		#endregion
 48
 49		public void Clear()
 50		{
 51			openIDs.Clear();
 52			profileList.Clear();
 53			currentID = 0;
 54		}
 55
 56		public Int32 Start(String pName, String useNote = null)
 57		{
 58			pTimeSpan pts = new pTimeSpan(DateTime.Now, useNote);
 59
 60			openIDs.Add(currentID, pName);
 61
 62			if (profileList.ContainsKey(pName) == false)
 63				profileList[pName] = new Dictionary<Int32, pTimeSpan>();
 64
 65			profileList[pName].Add(currentID, pts);
 66
 67			return ++currentID;
 68		}
 69
 70		public void Stop(Int32 id)
 71		{
 72			String pName;
 73			Dictionary<Int32, pTimeSpan> pList;
 74
 75			if (openIDs.ContainsKey(id) == false)
 76				//              Throw exception.
 77				return;
 78
 79			pName = openIDs[id];
 80
 81			if (profileList.ContainsKey(pName) == false)
 82				//				Throw exception.
 83				return;
 84
 85			pList = profileList[pName];
 86
 87			if (pList.ContainsKey(id) == false)
 88				//				Throw exception.
 89				return;
 90
 91			pList[id].End = DateTime.Now;
 92
 93			openIDs.Remove(id);
 94		}
 95
 96		public void Stop(String pName)
 97		{
 98			Int32 lastID = -1;
 99
100			// We really should walk the tree backwards.
101			foreach (KeyValuePair<Int32, String> kvp in openIDs)
102			{
103				if (kvp.Value == pName)
104					lastID = kvp.Key;
105			}
106
107			if (lastID == -1)
108				// Throw Exception.
109				return;
110
111
112			Stop(lastID);
113		}
114
115		public TimeSpan Total(String pName)
116		{
117			TimeSpan t = new TimeSpan(0);
118			Dictionary<Int32, pTimeSpan> pList;
119
120			if (profileList.ContainsKey(pName) == false)
121				// Throw exception.
122				return t;
123
124			pList = profileList[pName];
125
126			foreach (KeyValuePair<Int32, pTimeSpan> kvp in pList)
127			{
128				t += kvp.Value.Elapsed();
129			}
130
131			return t;
132		}
133
134		#region Overrides
135		public override string ToString()
136		{
137			String returnVal = "";
138
139			foreach (KeyValuePair<String, Dictionary<Int32, pTimeSpan>> kvp in profileList)
140			{
141				returnVal = returnVal + kvp.Key + " : " + Total(kvp.Key).ToString() + Environment.NewLine;
142			}
143
144			return returnVal;
145		}
146		#endregion
147	}
148}