C#

private int activationCounter=0;

void periodicFunction() {
    int n=Interlocked.Increment(ref activationCounter);     // increments in a safe way
    if (n<=1) {                // check no other execution is going on
        do {
            // whatever needs to be done periodically
            // (while this happens, the counter could get incremented)
            // when done, decrement and test the counter:
            n=Interlocked.Decrement(ref activationCounter); // decrements in a safe way
        } while (n!=0);                                     // check more is required
}

Saamir wrote:

I couldn't implement your code

bool stop = false;
...
Thread t = new Thread(new ThreadStart(run)){IsBackground = true}.Start();
...

private void run(){
   while(!stop){
      Thread.Sleep(60000);
      MonitorFunc();
   }
}

Dennis Lerche wrote:

converting this to a byte array

static byte[] ValueToByteArray(object obj)
{
    int len = Marshal.SizeOf(obj);
    byte[] arr = new byte[len];
    IntPtr ptr = Marshal.AllocHGlobal(len);
    Marshal.StructureToPtr(obj, ptr, true);
    Marshal.Copy(ptr, arr, 0, len);
    Marshal.FreeHGlobal(ptr);
    return arr;
}

SimpleData wrote:

I know it's a simple

string a = "asdasd;asdasdasder;asdgfg;ad;;asdasd";<br />
<br />
        int charCount = 0;<br />
<br />
        for (int i = 0; i <= a.Length - 1; i++)<br />
        {<br />
            if (a[i].ToString() == ";")<br />
            {<br />
                charCount += 1;<br />
            }<br />
        }

Blue_Boy wrote:

a[i].ToString() == ";"

int LiCount = 0;
foreach (char Lchar in a.ToCharArray())
{
    if (Lchar == ';')
	LiCount++;
}