sc_join.cc revision 13317:36c574a4036e 
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#include "base/logging.hh"
31#include "systemc/core/process.hh"
32#include "systemc/ext/core/messages.hh"
33#include "systemc/ext/core/sc_event.hh"
34#include "systemc/ext/core/sc_join.hh"
35#include "systemc/ext/core/sc_module.hh"
36#include "systemc/ext/utils/sc_report_handler.hh"
37
38namespace sc_core
39{
40
41sc_join::sc_join() : remaining(0) {}
42
43void
44sc_join::add_process(sc_process_handle h)
45{
46    auto p = (::sc_gem5::Process *)h;
47    assert(p);
48
49    if (p->procKind() == SC_METHOD_PROC_) {
50        SC_REPORT_ERROR(SC_ID_JOIN_ON_METHOD_HANDLE_, "");
51        return;
52    }
53
54    remaining++;
55    p->joinWait(this);
56}
57
58int sc_join::process_count() { return remaining; }
59void sc_join::signal() { if (!--remaining) joinEvent.notify(); }
60void sc_join::wait() { ::sc_core::wait(joinEvent); }
61void sc_join::wait_clocked() { do { ::sc_core::wait(); } while (remaining); }
62
63} // namespace sc_core
64