sc_process_handle.cc revision 12953 
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/core/scheduler.hh"
33#include "systemc/ext/core/sc_process_handle.hh"
34
35namespace sc_core
36{
37
38const char *
39sc_unwind_exception::what() const throw()
40{
41    panic("%s for base class called.\n", __PRETTY_FUNCTION__);
42}
43
44bool
45sc_unwind_exception::is_reset() const
46{
47    panic("%s for base class called.\n", __PRETTY_FUNCTION__);
48}
49
50sc_unwind_exception::sc_unwind_exception() {}
51sc_unwind_exception::sc_unwind_exception(const sc_unwind_exception &) {}
52sc_unwind_exception::~sc_unwind_exception() throw() {}
53
54
55const char *
56sc_process_b::name()
57{
58    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
59    return "";
60}
61
62const char *
63sc_process_b::kind()
64{
65    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
66    return "";
67}
68
69
70sc_process_b *
71sc_get_curr_process_handle()
72{
73    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
74    return nullptr;
75}
76
77
78sc_process_handle::sc_process_handle() : _gem5_process(nullptr) {}
79
80sc_process_handle::sc_process_handle(const sc_process_handle &handle) :
81    _gem5_process(handle._gem5_process)
82{
83    if (_gem5_process)
84        _gem5_process->incref();
85}
86
87sc_process_handle::sc_process_handle(sc_object *obj) :
88    _gem5_process(dynamic_cast<::sc_gem5::Process *>(obj))
89{
90    if (_gem5_process)
91        _gem5_process->incref();
92}
93
94sc_process_handle::~sc_process_handle()
95{
96    if (_gem5_process)
97        _gem5_process->decref();
98}
99
100
101bool
102sc_process_handle::valid() const
103{
104    return _gem5_process != nullptr;
105}
106
107
108sc_process_handle &
109sc_process_handle::operator = (const sc_process_handle &handle)
110{
111    if (_gem5_process)
112        _gem5_process->decref();
113    _gem5_process = handle._gem5_process;
114    if (_gem5_process)
115        _gem5_process->incref();
116    return *this;
117}
118
119bool
120sc_process_handle::operator == (const sc_process_handle &handle) const
121{
122    return _gem5_process && handle._gem5_process &&
123        (_gem5_process == handle._gem5_process);
124}
125
126bool
127sc_process_handle::operator != (const sc_process_handle &handle) const
128{
129    return !(handle == *this);
130}
131
132bool
133sc_process_handle::operator < (const sc_process_handle &other) const
134{
135    return _gem5_process < other._gem5_process;
136}
137
138void
139sc_process_handle::swap(sc_process_handle &handle)
140{
141    ::sc_gem5::Process *temp = handle._gem5_process;
142    handle._gem5_process = _gem5_process;
143    _gem5_process = temp;
144}
145
146
147const char *
148sc_process_handle::name() const
149{
150    return _gem5_process ? _gem5_process->name() : "";
151}
152
153sc_curr_proc_kind
154sc_process_handle::proc_kind() const
155{
156    return _gem5_process ? _gem5_process->procKind() : SC_NO_PROC_;
157}
158
159const std::vector<sc_object *> &
160sc_process_handle::get_child_objects() const
161{
162    static const std::vector<sc_object *> empty;
163    return _gem5_process ? _gem5_process->get_child_objects() : empty;
164}
165
166const std::vector<sc_event *> &
167sc_process_handle::get_child_events() const
168{
169    static const std::vector<sc_event *> empty;
170    return _gem5_process ? _gem5_process->get_child_events() : empty;
171}
172
173sc_object *
174sc_process_handle::get_parent_object() const
175{
176    return _gem5_process ? _gem5_process->get_parent_object() : nullptr;
177}
178
179sc_object *
180sc_process_handle::get_process_object() const
181{
182    return _gem5_process;
183}
184
185bool
186sc_process_handle::dynamic() const
187{
188    return _gem5_process ? _gem5_process->dynamic() : false;
189}
190
191bool
192sc_process_handle::terminated() const
193{
194    return _gem5_process ? _gem5_process->terminated() : false;
195}
196
197const sc_event &
198sc_process_handle::terminated_event() const
199{
200    static sc_event non_event;
201    return _gem5_process ? _gem5_process->terminatedEvent() : non_event;
202}
203
204
205void
206sc_process_handle::suspend(sc_descendent_inclusion_info include_descendants)
207{
208    if (!_gem5_process)
209        return;
210    _gem5_process->suspend(include_descendants == SC_INCLUDE_DESCENDANTS);
211}
212
213void
214sc_process_handle::resume(sc_descendent_inclusion_info include_descendants)
215{
216    if (!_gem5_process)
217        return;
218    _gem5_process->resume(include_descendants == SC_INCLUDE_DESCENDANTS);
219}
220
221void
222sc_process_handle::disable(sc_descendent_inclusion_info include_descendants)
223{
224    if (!_gem5_process)
225        return;
226    _gem5_process->disable(include_descendants == SC_INCLUDE_DESCENDANTS);
227}
228
229void
230sc_process_handle::enable(sc_descendent_inclusion_info include_descendants)
231{
232    if (!_gem5_process)
233        return;
234    _gem5_process->enable(include_descendants == SC_INCLUDE_DESCENDANTS);
235}
236
237void
238sc_process_handle::kill(sc_descendent_inclusion_info include_descendants)
239{
240    if (!_gem5_process)
241        return;
242    _gem5_process->kill(include_descendants == SC_INCLUDE_DESCENDANTS);
243}
244
245void
246sc_process_handle::reset(sc_descendent_inclusion_info include_descendants)
247{
248    if (!_gem5_process)
249        return;
250    _gem5_process->reset(include_descendants == SC_INCLUDE_DESCENDANTS);
251}
252
253bool
254sc_process_handle::is_unwinding()
255{
256    if (!_gem5_process) {
257        //TODO This should generate a systemc style warning if the handle is
258        //invalid.
259        return false;
260    } else {
261        return _gem5_process->isUnwinding();
262    }
263}
264
265const sc_event &
266sc_process_handle::reset_event() const
267{
268    static sc_event non_event;
269    return _gem5_process ? _gem5_process->resetEvent() : non_event;
270}
271
272
273void
274sc_process_handle::sync_reset_on(
275        sc_descendent_inclusion_info include_descendants)
276{
277    if (!_gem5_process)
278        return;
279    _gem5_process->syncResetOn(include_descendants == SC_INCLUDE_DESCENDANTS);
280}
281
282void
283sc_process_handle::sync_reset_off(
284        sc_descendent_inclusion_info include_descendants)
285{
286    if (!_gem5_process)
287        return;
288    _gem5_process->syncResetOff(include_descendants == SC_INCLUDE_DESCENDANTS);
289}
290
291
292sc_process_handle
293sc_get_current_process_handle()
294{
295    return sc_process_handle(::sc_gem5::scheduler.current());
296}
297
298bool
299sc_is_unwinding()
300{
301    return sc_get_current_process_handle().is_unwinding();
302}
303
304bool sc_allow_process_control_corners;
305
306} // namespace sc_core
307