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_CORE_SCHED_EVENT_HH__
31#define __SYSTEMC_CORE_SCHED_EVENT_HH__
32
33#include <functional>
| 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_CORE_SCHED_EVENT_HH__
31#define __SYSTEMC_CORE_SCHED_EVENT_HH__
32
33#include <functional>
|
| 34#include <list>
|
34
35#include "base/types.hh"
36
37namespace sc_gem5
38{
39
| 35
36#include "base/types.hh"
37
38namespace sc_gem5
39{
40
|
| 41class ScEvent;
42
43typedef std::list<ScEvent *> ScEvents;
44
|
40class ScEvent
41{
42 private:
43 std::function<void()> work;
44 Tick _when;
| 45class ScEvent
46{
47 private:
48 std::function<void()> work;
49 Tick _when;
|
45 bool _scheduled;
| 50 ScEvents *_events;
51 ScEvents::iterator _it;
|
46
47 friend class Scheduler;
48
49 void
| 52
53 friend class Scheduler;
54
55 void
|
50 schedule(Tick w)
| 56 schedule(ScEvents &events, Tick w)
|
51 {
52 when(w);
| 57 {
58 when(w);
|
53 _scheduled = true;
| 59 assert(!scheduled());
60 _events = &events;
61 _events->push_back(this);
62 _it = _events->end();
63 _it--;
|
54 }
55
| 64 }
65
|
56 void deschedule() { _scheduled = false; }
| 66 void
67 deschedule()
68 {
69 assert(scheduled());
70 _events->erase(_it);
71 _events = nullptr;
72 }
|
57 public:
58 ScEvent(std::function<void()> work) :
| 73 public:
74 ScEvent(std::function<void()> work) :
|
59 work(work), _when(MaxTick), _scheduled(false)
| 75 work(work), _when(MaxTick), _events(nullptr)
|
60 {}
61
62 ~ScEvent();
63
| 76 {}
77
78 ~ScEvent();
79
|
64 bool scheduled() { return _scheduled; }
| 80 bool scheduled() { return _events != nullptr; }
81 ScEvents *scheduledOn() { return _events; }
|
65
66 void when(Tick w) { _when = w; }
67 Tick when() { return _when; }
68
69 void run() { deschedule(); work(); }
70};
71
72} // namespace sc_gem5
73
74#endif // __SYSTEMC_CORE_SCHED_EVENT_HH__
| 82
83 void when(Tick w) { _when = w; }
84 Tick when() { return _when; }
85
86 void run() { deschedule(); work(); }
87};
88
89} // namespace sc_gem5
90
91#endif // __SYSTEMC_CORE_SCHED_EVENT_HH__
|