ACE/apps/JAWS2/JAWS/Policy.h

   1 /* -*- c++ -*- */
   2 #ifndef JAWS_POLICY_H
   3 #define JAWS_POLICY_H
   4
   5 #include "JAWS/Export.h"
   6 #include "JAWS/Concurrency.h"
   7
   8 class JAWS_IO;
   9 class JAWS_IO_Handler;
  10 class JAWS_IO_Handler_Factory;
  11
  12 /**
  13  * Policy mechanism for choosing different concurrency models.
  14  *
  15  * Given some (unspecified) state, decides what the concurrency
  16  * model should be.  (For now, we always return the same model.)
  17  */
  18 class JAWS_Export JAWS_Dispatch_Policy
  19 {
  20 public:
  21   JAWS_Dispatch_Policy ();
  22   virtual ~JAWS_Dispatch_Policy ();
  23
  24   virtual int ratio () = 0;
  25   virtual JAWS_IO * io () = 0;
  26   virtual JAWS_IO_Handler_Factory *ioh_factory () = 0;
  27   virtual JAWS_IO_Acceptor *acceptor () = 0;
  28   virtual JAWS_Concurrency_Base * concurrency () = 0;
  29
  30   virtual void ratio (int r) = 0;
  31   virtual void io (JAWS_IO *iop) = 0;
  32   virtual void ioh_factory (JAWS_IO_Handler_Factory *factoryp) = 0;
  33   virtual void acceptor (JAWS_IO_Acceptor *acceptorp) = 0;
  34   virtual void concurrency (JAWS_Concurrency_Base *concp) = 0;
  35 };
  36
  37 class JAWS_Export JAWS_Default_Dispatch_Policy : public JAWS_Dispatch_Policy
  38 {
  39 public:
  40   JAWS_Default_Dispatch_Policy ();
  41   virtual ~JAWS_Default_Dispatch_Policy ();
  42
  43   virtual int ratio ();
  44   virtual JAWS_IO *io ();
  45   virtual JAWS_IO_Handler_Factory *ioh_factory ();
  46   virtual JAWS_IO_Acceptor *acceptor ();
  47   virtual JAWS_Concurrency_Base *concurrency ();
  48
  49   virtual void ratio (int r);
  50   virtual void io (JAWS_IO *iop);
  51   virtual void ioh_factory (JAWS_IO_Handler_Factory *factoryp);
  52   virtual void acceptor (JAWS_IO_Acceptor *acceptorp);
  53   virtual void concurrency (JAWS_Concurrency_Base *concp);
  54
  55 private:
  56   int ratio_;
  57   JAWS_Concurrency_Base *concurrency_;
  58   JAWS_IO_Handler_Factory *ioh_factory_;
  59   JAWS_IO_Acceptor *acceptor_;
  60   JAWS_IO *io_;
  61 };
  62
  63 #endif /* !defined (JAWS_POLICY_H) */