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using System;
using System.Diagnostics;
using System.IO;
namespace Pfz.Threading
{
/// <summary>
/// This class only configures what to do when a dead-lock occurs while
/// acquiring a lock with PfzMonitorLockExtensions or with
/// PfzReaderWriterLockExtensions.
/// </summary>
public static class LockConfiguration
{
#region LockType enum
/// <summary>
/// Enum used to identify which type of lock has dead-locked when
/// invoking DeadLocked event.
/// </summary>
public enum LockType
{
/// <summary>
/// A monitor lock has dead-locked. (LockWithTimeout method).
/// </summary>
Monitor,
/// <summary>
/// A read-lock has dead-locked.
/// </summary>
Read,
/// <summary>
/// An upgradeable-read-lock has dead-locked.
/// </summary>
Upgradeable,
/// <summary>
/// A write-lock has dead-locked.
/// </summary>
Write
}
#endregion
#region TimedOutEventArgs
/// <summary>
/// Class used as argument of the TimedOut event.
/// </summary>
[Serializable]
public sealed class TimedOutEventArgs:
EventArgs
{
internal TimedOutEventArgs(LockType lockType)
{
LockType = lockType;
}
/// <summary>
/// The LockType that caused the timeout.
/// </summary>
public LockType LockType { get; private set; }
}
#endregion
#region TimedOut event
/// <summary>
/// This event is invoked when any of the Locking extensions
/// times-out (probably by a dead-lock).
/// </summary>
public static event EventHandler<TimedOutEventArgs> TimedOut;
#endregion
#region DefaultLockTimeout
private static TimeSpan fDefaultLockTimeout = new TimeSpan(0, 1, 0);
/// <summary>
/// Gets or sets the default timeout for LockWithTimeout method.
/// </summary>
public static TimeSpan DefaultLockTimeout
{
get
{
return fDefaultLockTimeout;
}
set
{
if (value < TimeSpan.Zero)
throw new ArgumentException("DefaultLockTimeout must be greater or equal to zero.");
fDefaultLockTimeout = value;
}
}
#endregion
#region LockTimedOutLogPath
private static string fLockTimedOutLogPath = "C:\\Temp\\PfzLockExtensions_TimedOut\\";
/// <summary>
/// Gets or sets a directory path in with log files will be generated when/if
/// LockWithTimeout times out.
/// </summary>
public static string LockTimedOutLogPath
{
get
{
return fLockTimedOutLogPath;
}
set
{
if (value != null)
{
if (value == "")
throw new ArgumentException("LockTimedOutLogPath can't be an empty string.");
if (value[value.Length-1] != '\\')
value += '\\';
}
fLockTimedOutLogPath = value;
}
}
#endregion
#region i_LockTimedOut
internal static void i_LockTimedOutNoException(LockType lockType)
{
var logPath = fLockTimedOutLogPath;
if (logPath != null)
{
try
{
if (!Directory.Exists(logPath))
Directory.CreateDirectory(logPath);
DateTime now = DateTime.Now;
string filePath = logPath + now.ToString("yyyy-MM-dd") + ".log";
var stackTrace = new StackTrace();
File.AppendAllText(filePath, now.ToString("HH:mm:ss") + " " + lockType + "\r\n" + stackTrace.ToString() + "\r\n\r\n");
}
catch
{
}
}
var timedOut = TimedOut;
if (timedOut != null)
{
TimedOutEventArgs args = new TimedOutEventArgs(lockType);
timedOut.Invoke(null, args);
}
}
internal static TimeoutException i_LockTimedOutException(LockType lockType)
{
i_LockTimedOutNoException(lockType);
return new TimeoutException(string.Format("Timed out while acquiring a \"{0}\" lock.", lockType.ToString()));
}
#endregion
}
}
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I started to program computers when I was 11 years old, as a hobbyist, programming in AMOS Basic and Blitz Basic for Amiga.
At 12 I had my first try with assembler, but it was too difficult at the time. Then, in the same year, I learned C and, after learning C, I was finally able to learn assembler (for Motorola 680x0).
Not sure, but probably between 12 and 13, I started to learn C++. I always programmed "in an object oriented way", but using function pointers instead of virtual methods.
At 15 I started to learn Pascal at school and to use Delphi. At 16 I started my first internship (using Delphi). At 18 I started to work professionally using C++ and since then I've developed my programming skills as a professional developer in C++ and C#, generally creating libraries that help other developers do their work easier, faster and with less errors.
Want more info or simply want to contact me?
Take a look at:
http://paulozemek.azurewebsites.net/
Or e-mail me at: paulozemek@outlook.com
Codeproject MVP 2012, 2015 & 2016
Microsoft MVP 2013-2014 (in October 2014 I started working at Microsoft, so I can't be a Microsoft MVP anymore).