package BoxTools;
/* A PAPI wrapper class that also works on non-PAPI systems */
public class PAPIWrapper {
  private PAPICounter c;
  private void disable(PAPIException exn) {
      Util.printErrMsg("PAPIWrapper counter failure ("+exn+")- counter disabled");
      c = null;
  }
  public PAPIWrapper(int event) {
    try {
      c = new PAPICounter(event);
      c.start();
      c.stop();
      c.clear();
    } catch (PAPIException exn) { disable(exn); }            
  }
  public inline long getCounterValue() { 
    if (c != null) {
      try {
        return c.getCounterValue();
      } catch (PAPIException exn) { disable(exn); }            
    }
    return 0;
  }
  public inline void start() {
    if (c != null) {
      try {
        c.start();                 
      } catch (PAPIException exn) { disable(exn); }            
    }
  }
  public inline void stop() {
    if (c != null) {
      try {
        c.stop();                 
      } catch (PAPIException exn) { disable(exn); }            
    }
  }
  public inline void clear() {
    if (c != null) {
      try {
        c.clear();                 
      } catch (PAPIException exn) { disable(exn); }            
    }
  }
}