include <ObjectPool.h>
  
  class UserRequest
  {
  public:
    UserRequest() {}
    ~UserRequest() {}
  
    // Methods to populate the request with specific information.
    // Methods to retrieve the request data.
    // (not shown)
           
  protected:
    // data members (not shown)
  };
  
  UserRequest& obtainUserRequest(ObjectPool<UserRequest>& pool)
  {
    // Obtain a UserRequest object from the pool
    UserRequest& request = pool.acquireObject();
  
    // populate the request with user input
    // (not shown)
  
    return (request);
  }
  
  void processUserRequest(ObjectPool<UserRequest>& pool, UserRequest& req)
  {
    // process the request
    // (not shown)
  
    // return the request to the pool
    pool.releaseObject(req);
  }
  
  int main(int argc, char** argv)
  {
    ObjectPool<UserRequest> requestPool(1000);
  
    // Set up program
    // (not shown)
  
    while (true /* program is running */) {
      UserRequest& req = obtainUserRequest(requestPool);
      processUserRequest(requestPool, req);
    }
  
    return (0);
  }