EasiReports

using System;
using System.Collections;
using System.Diagnostics;

namespace Common
{
	internal class Profile
	{
		private DateTime _Start = DateTime.Now;
		private ArrayList _Counters = new ArrayList();
		private bool _IsRunning = false;

		public bool IsRunning { get { return _IsRunning; } }

		public Profile()
		{
		}

		public void Start()
		{
			_IsRunning = true;
			_Start = DateTime.Now;
			Debug.WriteLine( "Profile started at " + _Start.ToString() );
		}

		public void Stop()
		{
			_IsRunning = false;

			DateTime now = DateTime.Now;
			Debug.WriteLine( "Profile finished at " + now.ToString() );

			TimeSpan duration = now - _Start;
			Debug.WriteLine( "Profile duration: " + duration.ToString() );

			for ( int i = 0 ; i < _Counters.Count ; i++ )
			{
				ProfileCounter o = ( ProfileCounter ) _Counters[ i ];

				Debug.WriteLine( "Counter " + o.Name + ":" );
				Debug.WriteLine( "	Called " + o.Calls + " times" );
				Debug.WriteLine( "	Total duration: " + o.Duration.ToString() );

				double totalms = o.Duration.TotalMilliseconds;
				double averagems = totalms / ( double ) o.Calls;
//				TimeSpan a = TimeSpan.FromMilliseconds( averagems );

				Debug.WriteLine( "	Average duration: " + averagems + " ms" );
			}
		}

		public ProfileCounter CreateCounter( string name )
		{
			ProfileCounter o = new ProfileCounter( name );
			_Counters.Add( o );
			return o;
		}
	}

	internal class ProfileCounter
	{
		private string _Name = String.Empty;
		private int _Calls = 0;
		private TimeSpan _Duration = TimeSpan.Zero;
		private DateTime _Start = DateTime.Now;

		public string Name { get { return _Name; } }
		public int Calls { get { return _Calls; } }
		public TimeSpan Duration { get { return _Duration; } }

		public ProfileCounter( string name )
		{
			_Name = name;
		}

		public void Call()
		{
			_Calls++;
			_Start = DateTime.Now;
		}

		public void Return()
		{
			TimeSpan duration = DateTime.Now - _Start;
			_Duration += duration;
		}

	}

	internal class ProfileCall : IDisposable
	{
		private ProfileCounter _Counter = null;

		public ProfileCall( ProfileCounter counter )
		{
			_Counter = counter;
			_Counter.Call();
		}

		public void Dispose()
		{
			_Counter.Return();
		}

	}

}