private long startTime ;
private long stopTime;
private long freq;
/// <summary>
/// ctor
/// </summary>
public HiPerfTimer()
{
startTime = 0;
stopTime = 0;
freq =0;
if (QueryPerformanceFrequency(out freq) == false)
{
throw new Win32Exception(); // timer not supported
}
}
/// <summary>
/// Start the timer
/// </summary>
/// <returns>long - tick count</returns>
public long Start()
{
QueryPerformanceCounter(out startTime);
return startTime;
}
/// <summary>
/// Stop timer
/// </summary>
/// <returns>long - tick count</returns>
public long Stop()
{
QueryPerformanceCounter(out stopTime);
return stopTime;
}
/// <summary>
/// Return the duration of the timer (in seconds)
/// </summary>
/// <returns>double - duration</returns>
public double Duration
{
get
{
return (double)(stopTime - startTime) / (double) freq;
}
}
/// <summary>
/// Frequency of timer (no counts in one second on this machine)
/// </summary>
///<returns>long - Frequency</returns>
public long Frequency
{
get
{
QueryPerformanceFrequency(out freq);
return freq;
}
}
}
}

using System;
using System.IO;
using System.Text;
using System.Diagnostics;

namespace PAB
{
public class Logging
{
public double StartTicks;
public double EndTicks;
public double cumTime;
public string ActiveGUID=String.Empty;
public string strLogFileName = String.Empty;
private HiPerfTimer hpt;
public Logging(string strFileName)
{
if(strFileName!="")
{
strLogFileName = strFileName;
}
else
{
strLogFileName="DefaultAppLog";
}
hpt = new PAB.HiPerfTimer();
}

public string StartLogEntry(string strLogEntryName, string strComment)
{
string lf=String.Empty;
if (strLogFileName != "")
{
lf = @"\" + strLogFileName + ".csv";
}
else
{
lf =@"\DefaultAppLog.csv";
}
string strFullLogPathName= System.AppDomain.CurrentDomain.BaseDirectory.ToString() + lf;
string strLogEntryGUID= Guid.NewGuid().ToString();
ActiveGUID = strLogEntryGUID;
string strtime = DateTime.Now.ToShortDateString() + ": " + DateTime.Now.ToShortTimeString();


hpt.Start();
StartTicks= 0;// set to zero
cumTime=0;
Debug.WriteLine(StartTicks.ToString());
StringBuilder sbLog =new StringBuilder();
sbLog.Append("New Entry: ");
sbLog.Append(",");
sbLog.Append(strLogEntryGUID);
sbLog.Append(",");
sbLog.Append(strtime);
sbLog.Append(",");
sbLog.Append(strLogEntryName);
sbLog.Append(",");
sbLog.Append(strComment);
sbLog.Append("| Caller: ");
string strCallAssy = System.Reflection.Assembly.GetCallingAssembly().ToString();
strCallAssy = strCallAssy.Substring(0, strCallAssy.IndexOf(",") );
sbLog.Append(strCallAssy);

sbLog.Append(",");
sbLog.Append("0");
sbLog.Append(",");
sbLog.Append("0");
sbLog.Append("\r\n");
try
{
FileInfo fi = new FileInfo(strFullLogPathName);
FileStream sWriterAppend = fi.Open(FileMode.Append, FileAccess.Write, FileShare.ReadWrite);
sWriterAppend.Write(System.Text.Encoding.ASCII.GetBytes(sbLog.ToString()), 0, sbLog.Length);
sWriterAppend.Flush();
sWriterAppend.Close();
sbLog = null;
fi = null;
sWriterAppend = null;
}
catch (Exception ex)
{
sbLog = null;
return ex.Message;
}
return strLogEntryGUID;
}

public string AddLogEntry(string strLogEntryGUID , string strLogEntryName,string strComment)
{
if (strLogEntryGUID != ActiveGUID)throw new Exception("Log Entry GUID Mismatch.");

string lf =String.Empty;

if(strLogFileName.Length >0)
{
lf = @"\" + strLogFileName + ".csv";
}
else
{
lf = @"\DefaultAppLog.csv";
}

string strFullLogPathName= System.AppDomain.CurrentDomain.BaseDirectory.ToString() + lf;
string strtime = DateTime.Now.ToShortDateString() + ": " + DateTime.Now.ToShortTimeString();

hpt.Stop();
EndTicks =hpt.Duration;
cumTime+=EndTicks; // add to cum time elapsed

StringBuilder sbLog = new StringBuilder();
sbLog.Append("Add Entry: ");
sbLog.Append(",");
sbLog.Append(strLogEntryGUID);
sbLog.Append(",");
sbLog.Append(strtime);
sbLog.Append(",");
sbLog.Append(strLogEntryName);
sbLog.Append(",");
sbLog.Append(strComment);
sbLog.Append(",");
string strIntElapsed =String.Empty;


sbLog.Append(EndTicks.ToString()); // this event duration in sec
sbLog.Append(",");
strIntElapsed = cumTime.ToString();
hpt.Start();
sbLog.Append(strIntElapsed);
sbLog.Append("\r\n");
try
{
FileInfo fi = new FileInfo(strFullLogPathName);
FileStream sWriterAppend = fi.Open(FileMode.Append, FileAccess.Write, FileShare.ReadWrite);
sWriterAppend.Write(System.Text.Encoding.ASCII.GetBytes(sbLog.ToString()), 0, sbLog.Length);
sWriterAppend.Flush();
sWriterAppend.Close();
sbLog = null;
fi = null;
sWriterAppend = null;
}
catch (Exception ex)
{
sbLog = null;
return ex.Message;
}
return strLogEntryGUID;
}

public string CloseLogEntry(string strLogEntryGUID,string strLogEntryName,string strComment)
{
if (strLogEntryGUID != ActiveGUID)
{
throw new Exception("Log Entry GUID Mismatch.");
}
string lf= String.Empty;

if( strLogFileName != "")
{
lf = @"\" + strLogFileName + ".csv";
}
else
{
lf = @"\DefaultAppLog.csv";
}

string strFullLogPathName = System.AppDomain.CurrentDomain.BaseDirectory.ToString() + lf;
string strtime = DateTime.Now.ToShortDateString() + ": " + DateTime.Now.ToShortTimeString();
hpt.Stop();
EndTicks =hpt.Duration;
cumTime+=EndTicks; // add to cum time elapsed
StringBuilder sbLog =new StringBuilder();
sbLog.Append("Close Entry: ");
sbLog.Append(",");
sbLog.Append(strLogEntryGUID);
sbLog.Append(",");
sbLog.Append(strtime);
sbLog.Append(",");
sbLog.Append(strLogEntryName);
sbLog.Append(",");
sbLog.Append(strComment);
sbLog.Append(",");
sbLog.Append(EndTicks.ToString());
sbLog.Append(",");
sbLog.Append(cumTime.ToString());
sbLog.Append("\r\n");
try
{
FileInfo fi = new FileInfo(strFullLogPathName);
FileStream sWriterAppend = fi.Open(FileMode.Append, FileAccess.Write, FileShare.ReadWrite);
sWriterAppend.Write(System.Text.Encoding.ASCII.GetBytes(sbLog.ToString()), 0, sbLog.Length);
sWriterAppend.Flush();
sWriterAppend.Close();
sbLog = null;
fi = null;
sWriterAppend = null;
StartTicks = 0;

EndTicks = 0;
cumTime=0;
}
catch (Exception ex)
{
sbLog = null;
return ex.Message;
}
return strLogEntryGUID;
}
}

}