sc_semaphore.hh revision 12841 
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_HH__
31#define __SYSTEMC_EXT_CHANNEL_SC_SEMAPHORE_HH__
32
33#include "../core/sc_object.hh"
34#include "sc_semaphore_if.hh"
35
36namespace sc_core
37{
38
39class sc_semaphore : public sc_semaphore_if, public sc_object
40{
41  public:
42    explicit sc_semaphore(int);
43    sc_semaphore(const char *name, int);
44
45    virtual int wait();
46    virtual int trywait();
47    virtual int post();
48    virtual int get_value() const;
49
50    virtual const char *kind() const;
51
52  private:
53    // Disabled
54    sc_semaphore(const sc_semaphore &) :
55            sc_interface(), sc_semaphore_if(), sc_object()
56    {}
57
58    sc_semaphore &operator = (const sc_semaphore &) { return *this; }
59};
60
61} // namespace sc_core
62
63#endif  //__SYSTEMC_EXT_CHANNEL_SC_SEMAPHORE_HH__
64