xref: /gem5/ext/systemc/src/sysc/communication/sc_fifo_ports.h

/*****************************************************************************

  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
  more contributor license agreements.  See the NOTICE file distributed
  with this work for additional information regarding copyright ownership.
  Accellera licenses this file to you under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with the
  License.  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
  implied.  See the License for the specific language governing
  permissions and limitations under the License.

 *****************************************************************************/

/*****************************************************************************

  sc_fifo_ports.h -- The sc_fifo<T> port classes.

  Original Author: Martin Janssen, Synopsys, Inc., 2001-05-21

  CHANGE LOG IS AT THE END OF THE FILE
 *****************************************************************************/

#ifndef SC_FIFO_PORTS_H
#define SC_FIFO_PORTS_H


#include "sysc/communication/sc_port.h"
#include "sysc/communication/sc_fifo_ifs.h"

namespace sc_core {

// ----------------------------------------------------------------------------
//  CLASS : sc_fifo_in<T>
//
//  The sc_fifo<T> input port class.
// ----------------------------------------------------------------------------

template <class T>
class sc_fifo_in
: public sc_port<sc_fifo_in_if<T>,0,SC_ONE_OR_MORE_BOUND>
{
public:

    // typedefs

    typedef T                                       data_type;

    typedef sc_fifo_in_if<data_type>                if_type;
    typedef sc_port<if_type,0,SC_ONE_OR_MORE_BOUND> base_type;
    typedef sc_fifo_in<data_type>                   this_type;

    typedef if_type                                 in_if_type;
    typedef sc_port_b<in_if_type>                   in_port_type;

public:

    // constructors

    sc_fifo_in()
	: base_type()
	{}

    explicit sc_fifo_in( const char* name_ )
	: base_type( name_ )
	{}

    explicit sc_fifo_in( in_if_type& interface_ )
	: base_type( interface_ )
	{}

    sc_fifo_in( const char* name_, in_if_type& interface_ )
	: base_type( name_, interface_ )
	{}

    explicit sc_fifo_in( in_port_type& parent_ )
	: base_type( parent_ )
	{}

    sc_fifo_in( const char* name_, in_port_type& parent_ )
	: base_type( name_, parent_ )
	{}

    sc_fifo_in( this_type& parent_ )
	: base_type( parent_ )
	{}

    sc_fifo_in( const char* name_, this_type& parent_ )
	: base_type( name_, parent_ )
	{}


    // destructor (does nothing)

    virtual ~sc_fifo_in()
	{}


    // interface access shortcut methods

    // blocking read

    void read( data_type& value_ )
        { (*this)->read( value_ ); }

    data_type read()
        { return (*this)->read(); }


    // non-blocking read

    bool nb_read( data_type& value_ )
        { return (*this)->nb_read( value_ ); }


    // get the number of available samples

    int num_available() const
        { return (*this)->num_available(); }


    // get the data written event

    const sc_event& data_written_event() const
	{ return (*this)->data_written_event(); }


    // use for static sensitivity to data written event

    sc_event_finder& data_written() const
    {
	return *new sc_event_finder_t<in_if_type>(
	    *this, &in_if_type::data_written_event );
    }

    virtual const char* kind() const
        { return "sc_fifo_in"; }

private:

    // disabled
    sc_fifo_in( const this_type& );
    this_type& operator = ( const this_type& );
};


// IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII

// ----------------------------------------------------------------------------
//  CLASS : sc_fifo_out<T>
//
//  The sc_fifo<T> output port class.
// ----------------------------------------------------------------------------

template <class T>
class sc_fifo_out
: public sc_port<sc_fifo_out_if<T>,0,SC_ONE_OR_MORE_BOUND>
{
public:

    // typedefs

    typedef T                                        data_type;

    typedef sc_fifo_out_if<data_type>                if_type;
    typedef sc_port<if_type,0,SC_ONE_OR_MORE_BOUND>  base_type;
    typedef sc_fifo_out<data_type>                   this_type;

    typedef if_type                                  out_if_type;
    typedef sc_port_b<out_if_type>                   out_port_type;

public:

    // constructors

    sc_fifo_out()
	: base_type()
	{}

    explicit sc_fifo_out( const char* name_ )
	: base_type( name_ )
	{}

    explicit sc_fifo_out( out_if_type& interface_ )
	: base_type( interface_ )
	{}

    sc_fifo_out( const char* name_, out_if_type& interface_ )
	: base_type( name_, interface_ )
	{}

    explicit sc_fifo_out( out_port_type& parent_ )
	: base_type( parent_ )
	{}

    sc_fifo_out( const char* name_, out_port_type& parent_ )
	: base_type( name_, parent_ )
	{}

    sc_fifo_out( this_type& parent_ )
	: base_type( parent_ )
	{}

    sc_fifo_out( const char* name_, this_type& parent_ )
	: base_type( name_, parent_ )
	{}


    // destructor (does nothing)

    virtual ~sc_fifo_out()
	{}


    // interface access shortcut methods

    // blocking write

    void write( const data_type& value_ )
        { (*this)->write( value_ ); }


    // non-blocking write

    bool nb_write( const data_type& value_ )
        { return (*this)->nb_write( value_ ); }


    // get the number of free spaces

    int num_free() const
        { return (*this)->num_free(); }


    // get the data read event

    const sc_event& data_read_event() const
	{ return (*this)->data_read_event(); }


    // use for static sensitivity to data read event

    sc_event_finder& data_read() const
    {
	return *new sc_event_finder_t<out_if_type>(
	    *this, &out_if_type::data_read_event );
    }

    virtual const char* kind() const
        { return "sc_fifo_out"; }

private:

    // disabled
    sc_fifo_out( const this_type& );
    this_type& operator = ( const this_type& );
};


// IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII

} // namespace sc_core

//$Log: sc_fifo_ports.h,v $
//Revision 1.3  2011/08/26 20:45:40  acg
// Andy Goodrich: moved the modification log to the end of the file to
// eliminate source line number skew when check-ins are done.
//
//Revision 1.2  2011/02/18 20:23:45  acg
// Andy Goodrich: Copyright update.
//
//Revision 1.1.1.1  2006/12/15 20:20:04  acg
//SystemC 2.3
//
//Revision 1.2  2006/01/03 23:18:26  acg
//Changed copyright to include 2006.
//
//Revision 1.1.1.1  2005/12/19 23:16:43  acg
//First check in of SystemC 2.1 into its own archive.
//
//Revision 1.10  2005/09/15 23:01:51  acg
//Added std:: prefix to appropriate methods and types to get around
//issues with the Edison Front End.
//
//Revision 1.9  2005/06/10 22:43:55  acg
//Added CVS change log annotation.
//

#endif

// Taf!