sc_port.cc revision 13203:76ee4971fd9e 
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/bindinfo.hh"
32#include "systemc/core/module.hh"
33#include "systemc/core/scheduler.hh"
34#include "systemc/ext/core/sc_main.hh"
35#include "systemc/ext/core/sc_port.hh"
36
37namespace sc_core
38{
39
40namespace
41{
42
43void
44reportError(const char *id, const char *add_msg,
45        const char *name, const char *kind)
46{
47    std::string msg;
48    if (add_msg)
49        msg = csprintf("%s: port '%s' (%s)", add_msg, name, kind);
50    else
51        msg = csprintf("port '%s' (%s)", name, kind);
52
53    SC_REPORT_ERROR(id, msg.c_str());
54}
55
56}
57
58sc_port_base::sc_port_base(const char *name, int n, sc_port_policy p) :
59    sc_object(name), _maxSize(n), _size(0), finalized(false)
60{
61    if (sc_is_running()) {
62        reportError("(E110) insert port failed", "simulation running",
63                name, kind());
64    }
65    if (::sc_gem5::scheduler.elaborationDone()) {
66        reportError("(E110) insert port failed", "elaboration done",
67                name, kind());
68    }
69
70    ::sc_gem5::Module *m = ::sc_gem5::currentModule();
71    if (!m) {
72        reportError("(E100) port specified outside of module",
73                nullptr, name, kind());
74    } else {
75        m->ports.push_back(this);
76    }
77}
78
79void
80sc_port_base::warn_unimpl(const char *func) const
81{
82    warn("%s not implemented.\n", func);
83}
84
85int sc_port_base::maxSize() const { return _maxSize; }
86int sc_port_base::size() const { return _size; }
87
88void
89sc_port_base::bind(sc_interface &i)
90{
91    _gem5BindInfo.push_back(new ::sc_gem5::BindInfo(&i));
92}
93
94void
95sc_port_base::bind(sc_port_base &p)
96{
97    _gem5BindInfo.push_back(new ::sc_gem5::BindInfo(&p));
98}
99
100void
101sc_port_base::_gem5Finalize()
102{
103    if (finalized)
104        return;
105    finalized = true;
106
107    for (auto &bi: _gem5BindInfo) {
108        if (bi->interface) {
109            _size++;
110            _gem5AddInterface(bi->interface);
111        } else {
112            sc_port_base *port = bi->port;
113            port->_gem5Finalize();
114            int size = port->size();
115            for (int i = 0; i < size; i++) {
116                _size++;
117                _gem5AddInterface(port->_gem5Interface(i));
118            }
119        }
120        delete bi;
121    }
122
123    _gem5BindInfo.clear();
124}
125
126} // namespace sc_core
127