#include <iostream.h>

#include <thread.h>
#include <countsem.h>



// Counting Semaphore initialized to 10

CountingSemaphore sem1;



class Daughter : public Thread {

public:
  Daughter() { }

protected:
  void Run(void) {
    cout << "This is a daughter" << endl;
    sleep(3);
    sem1.V();

  }
};


int main(void) {

  Daughter daughters[10];
  

  // The main program sets the value of the 
  // Counting semaphore to a negative number
  sem1.SetVal(-9);

  for( int i=0; i < 10; i++)
    daughters[i].Start();

    // Now wait for a P to be able to exit
    sem1.P();
    cout << "Main: Got a P" << endl;
  return 0;
}