tlm_core_ifs.h

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//
// Note to the LRM writer : This is the core of the TLM standard
//


#ifndef __TLM_CORE_IFS_H__
#define __TLM_CORE_IFS_H__

//#include <systemc>

#include "tlm_core/tlm_1/tlm_req_rsp/tlm_1_interfaces/tlm_tag.h"

namespace tlm {

// bidirectional blocking interfaces

template < typename REQ , typename RSP >
class tlm_transport_if : public virtual sc_core::sc_interface
{
public:
  virtual RSP transport( const REQ & ) = 0;

  virtual void transport( const REQ &req , RSP &rsp ) {
    rsp = transport( req );
  }

};


// uni-directional blocking interfaces

template < typename T >
class tlm_blocking_get_if : public virtual sc_core::sc_interface
{
public:
  virtual T get( tlm_tag<T> *t = 0 ) = 0;
  virtual void get( T &t ) { t = get(); }

};

template < typename T >
class tlm_blocking_put_if : public virtual sc_core::sc_interface
{
public:
  virtual void put( const T &t ) = 0;
};

// uni-directional non blocking interfaces

template < typename T >
class tlm_nonblocking_get_if : public virtual sc_core::sc_interface
{
public:
  virtual bool nb_get( T &t ) = 0;
  virtual bool nb_can_get( tlm_tag<T> *t = 0 ) const = 0;
  virtual const sc_core::sc_event &ok_to_get( tlm_tag<T> *t = 0 ) const = 0;
};

template < typename T >
class tlm_nonblocking_put_if : public virtual sc_core::sc_interface
{
public:
  virtual bool nb_put( const T &t ) = 0;
  virtual bool nb_can_put( tlm_tag<T> *t = 0 ) const = 0;
  virtual const sc_core::sc_event &ok_to_put( tlm_tag<T> *t = 0 ) const = 0;
};


// combined uni-directional blocking and non blocking

template < typename T >
class tlm_get_if :
  public virtual tlm_blocking_get_if< T > ,
  public virtual tlm_nonblocking_get_if< T > {};

template < typename T >
class tlm_put_if :
  public virtual tlm_blocking_put_if< T > ,
  public virtual tlm_nonblocking_put_if< T > {};


// peek interfaces

template < typename T >
class tlm_blocking_peek_if : public virtual sc_core::sc_interface
{
public:
  virtual T peek( tlm_tag<T> *t = 0 ) const = 0;
  virtual void peek( T &t ) const { t = peek(); }

};

template < typename T >
class tlm_nonblocking_peek_if : public virtual sc_core::sc_interface
{
public:
  virtual bool nb_peek( T &t ) const = 0;
  virtual bool nb_can_peek( tlm_tag<T> *t = 0 ) const = 0;
  virtual const sc_core::sc_event &ok_to_peek( tlm_tag<T> *t = 0 ) const = 0;
};

template < typename T >
class tlm_peek_if :
  public virtual tlm_blocking_peek_if< T > ,
  public virtual tlm_nonblocking_peek_if< T > {};

// get_peek interfaces

template < typename T >
class tlm_blocking_get_peek_if :
  public virtual tlm_blocking_get_if<T> ,
  public virtual tlm_blocking_peek_if<T> {};

template < typename T >
class tlm_nonblocking_get_peek_if :
  public virtual tlm_nonblocking_get_if<T> ,
  public virtual tlm_nonblocking_peek_if<T> {};


template < typename T >
class tlm_get_peek_if :
  public virtual tlm_get_if<T> ,
  public virtual tlm_peek_if<T> ,
  public virtual tlm_blocking_get_peek_if<T> ,
  public virtual tlm_nonblocking_get_peek_if<T>
  {};

} // namespace tlm

#endif