sc_buffer.hh revision 12841:22aa7ba47bf9 
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_CHANNEL_SC_BUFFER_HH__
31#define __SYSTEMC_EXT_CHANNEL_SC_BUFFER_HH__
32
33#include "../core/sc_module.hh" // for sc_gen_unique_name
34#include "sc_signal.hh"
35#include "warn_unimpl.hh" // for warn_unimpl
36
37namespace sc_core
38{
39
40template <class T, sc_writer_policy WRITER_POLICY>
41class sc_buffer : public sc_signal<T, WRITER_POLICY>
42{
43  public:
44    sc_buffer() : sc_signal<T, WRITER_POLICY>(sc_gen_unique_name("buffer")) {}
45    explicit sc_buffer(const char *name) :
46            sc_signal<T, WRITER_POLICY>(sc_gen_unique_name(name))
47    {}
48
49    virtual void
50    write(const T&)
51    {
52        sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
53    }
54
55    sc_buffer<T, WRITER_POLICY> &
56    operator = (const T &)
57    {
58        sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
59        return *this;
60    }
61    sc_buffer<T, WRITER_POLICY> &
62    operator = (const sc_signal<T, WRITER_POLICY> &)
63    {
64        sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
65        return *this;
66    }
67    sc_buffer<T, WRITER_POLICY> &
68    operator = (const sc_buffer<T, WRITER_POLICY> &)
69    {
70        sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
71        return *this;
72    }
73
74    virtual const char *kind() const { return "sc_buffer"; }
75
76  protected:
77    virtual void
78    update()
79    {
80        sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
81    }
82
83  private:
84    // Disabled
85    sc_buffer(const sc_buffer<T, WRITER_POLICY> &) {}
86};
87
88} // namespace sc_core
89
90#endif  //__SYSTEMC_EXT_CHANNEL_SC_BUFFER_HH__
91