sc_export.hh revision 13059:4be5f408e128 
1/*
2 * Copyright 2018 Google, Inc.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met: redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer;
8 * redistributions in binary form must reproduce the above copyright
9 * notice, this list of conditions and the following disclaimer in the
10 * documentation and/or other materials provided with the distribution;
11 * neither the name of the copyright holders nor the names of its
12 * contributors may be used to endorse or promote products derived from
13 * this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 * Authors: Gabe Black
28 */
29
30#ifndef __SYSTEMC_EXT_CORE_SC_EXPORT_HH__
31#define __SYSTEMC_EXT_CORE_SC_EXPORT_HH__
32
33#include "sc_module.hh" // for sc_gen_unique_name
34#include "sc_object.hh"
35
36namespace sc_core
37{
38
39class sc_interface;
40
41class sc_export_base : public sc_object
42{
43  public:
44    sc_export_base(const char *n);
45    ~sc_export_base();
46
47    virtual sc_interface *get_iterface() = 0;
48    virtual const sc_interface *get_interface() const = 0;
49
50  protected:
51    friend class sc_gem5::Kernel;
52
53    virtual void before_end_of_elaboration() = 0;
54    virtual void end_of_elaboration() = 0;
55    virtual void start_of_simulation() = 0;
56    virtual void end_of_simulation() = 0;
57};
58
59template <class IF>
60class sc_export : public sc_export_base
61{
62  public:
63    sc_export() :
64        sc_export_base(sc_gen_unique_name("export")), interface(nullptr)
65    {}
66    explicit sc_export(const char *n) :
67        sc_export_base(n), interface(nullptr)
68    {}
69    virtual ~sc_export() {}
70
71    virtual const char *kind() const { return "sc_export"; }
72
73    void operator () (IF &i) { bind(i); }
74    virtual void bind(IF &i) { interface = &i; }
75    operator IF & () { return *interface; }
76    operator const IF & () const { return *interface; }
77
78    IF *operator -> () { return interface; }
79    const IF *operator -> () const { return interface; }
80
81    sc_interface *get_iterface() override { return interface; }
82    const sc_interface *get_interface() const override { return interface; }
83
84  protected:
85    void before_end_of_elaboration() {}
86    void end_of_elaboration() {}
87    void start_of_simulation() {}
88    void end_of_simulation() {}
89
90  private:
91    IF *interface;
92
93    // Disabled
94    sc_export(const sc_export<IF> &);
95    sc_export<IF> &operator = (const sc_export<IF> &);
96};
97
98} // namespace sc_core
99
100#endif  //__SYSTEMC_EXT_CORE_SC_EXPORT_HH__
101