How should I write the .i file to wrap callbacks in Java or C#

Question

My C program uses callback functions which are periodically called. I want to be able to handle the callback functions in a Java or C# program. How should I write the .i fil

Answer 1

C# solution : you must use delegates. look at the code sample

public delegate void DoSome(object sender);

public class MyClass{
      public event DoSome callbackfunc;

      public void DoWork(){
            // do work here 
            if(callbackfunc != null)
                     callbackfunc(something);
      }
}

this is also like event handling mechanism but by theory both of have same implementation in c#

Java solution: you must use interfaces, look at this sample code

interface Notification{
      public void somthingHappend(Object obj);
}

class MyClass{
     private Notification iNotifer;

     public void setNotificationReciver(Notification in){
            this.iNotifier = in;
     }

     public void doWork(){
            //some work to do
            if(something heppens){ iNotifier.somthingHappend(something);}
     }
}

actually you can use a List of Notification to implement a set of callback receivers