C#

Sandeep Mewara wrote:

ASP.NET question

using System;
using System.Collections.Generic;
using System.Linq;
using System.Numerics;
using System.Text;

namespace ConsoleApplication1 {
    class Program {
        static void Main(string[] args) {
            BigInteger a = 12;
            Console.WriteLine("a=" + a);
            Console.ReadKey();
        }
    }
}

using System.Numerics;

private object tolock = new object() ;
private bool initialized = false ;

...

if ( !initialized )
{
  lock ( tolock )
  {
    if ( !initialized )
    {
      /* do whatever */

      initialized = true ;
    }  
  }
}

Sentenryu wrote:

i was thinking in replacing the static class with a singleton, you think it's a
bad idea?

Sentenryu wrote:

in theory it works with the static class, the problem is that i'm afraid it's
not safe, what happens if two users connected (so, two threads) request the
server to add a new user, then the server call the Add method 2 times
simultaneously, the Add method writes a XML file and then reads it again (yes,
poor implementation, hopefully not mine).

Sentenryu wrote:

but i've seen very strange comportment of this class

Sentenryu wrote:

submission to my university

Sentenryu wrote:

if two users connected (so, two threads)

Sentenryu wrote:

all of those threads run in the App Domain of the console application

Sentenryu wrote:

the console application