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_SEMAPHORE_IF_HH__
31#define __SYSTEMC_EXT_CHANNEL_SC_SEMAPHORE_IF_HH__
32
33#include "../core/sc_interface.hh"
34
35namespace sc_core
36{
37
38class sc_semaphore_if : virtual public sc_interface
39{
40  public:
41    virtual int wait() = 0;
42    virtual int trywait() = 0;
43    virtual int post() = 0;
44    virtual int get_value() const = 0;
45
46  protected:
47    sc_semaphore_if() : sc_interface() {}
48
49  private:
50    // Disabled
51    sc_semaphore_if(const sc_semaphore_if &) : sc_interface() {}
52    sc_semaphore_if &operator = (const sc_semaphore_if &) { return *this; }
53};
54
55} // namespace sc_core
56
57#endif  //__SYSTEMC_EXT_CHANNEL_SC_SEMAPHORE_IF_HH__
58