1/*
2 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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39#include <set>
40
41#include "sim/clocked_object.hh"
42
43class Consumer
44{
45 public:
46 Consumer(ClockedObject *_em)
47 : em(_em)
48 {
49 }
50
51 virtual
52 ~Consumer()
53 { }
54
55 virtual void wakeup() = 0;
56 virtual void print(std::ostream& out) const = 0;
57 virtual void storeEventInfo(int info) {}
58
59 bool
60 alreadyScheduled(Tick time)
61 {
62 return m_scheduled_wakeups.find(time) != m_scheduled_wakeups.end();
63 }
64
65 void
66 insertScheduledWakeupTime(Tick time)
67 {
68 m_scheduled_wakeups.insert(time);
69 }
70
71 void scheduleEventAbsolute(Tick timeAbs);
72
73 protected:
74 void scheduleEvent(Cycles timeDelta);
75
76 private:
77 std::set<Tick> m_scheduled_wakeups;
78 ClockedObject *em;
79
80 class ConsumerEvent : public Event
81 {
82 public:
83 ConsumerEvent(Consumer* _consumer)
84 : Event(Default_Pri, AutoDelete), m_consumer_ptr(_consumer)
85 {
86 }
87
88 void process() { m_consumer_ptr->wakeup(); }
89
90 private:
91 Consumer* m_consumer_ptr;
92 };
93};
94
95inline std::ostream&
96operator<<(std::ostream& out, const Consumer& obj)
97{
98 obj.print(out);
99 out << std::flush;
100 return out;
101}
102
103#endif // __MEM_RUBY_COMMON_CONSUMER_HH__