TimerTable.hh revision 6154 
1
2/*
3 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer;
10 * redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution;
13 * neither the name of the copyright holders nor the names of its
14 * contributors may be used to endorse or promote products derived from
15 * this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30/*
31 * TimerTable.h
32 *
33 * Description:
34 *
35 * $Id$
36 *
37 */
38
39#ifndef TIMERTABLE_H
40#define TIMERTABLE_H
41
42#include "mem/ruby/common/Global.hh"
43#include "mem/gems_common/Map.hh"
44#include "mem/ruby/common/Address.hh"
45class Consumer;
46class Chip;
47
48class TimerTable {
49public:
50
51  // Constructors
52  TimerTable(Chip* chip_ptr);
53
54  // Destructor
55  //~TimerTable();
56
57  // Class Methods
58  static void printConfig(ostream& out) {}
59
60  // Public Methods
61  void setConsumer(Consumer* consumer_ptr) { ASSERT(m_consumer_ptr==NULL); m_consumer_ptr = consumer_ptr; }
62  void setDescription(const string& name) { m_name = name; }
63
64  bool isReady() const;
65  const Address& readyAddress() const;
66  bool isSet(const Address& address) const { return m_map.exist(address); }
67  void set(const Address& address, Time relative_latency);
68  void unset(const Address& address);
69  void print(ostream& out) const;
70private:
71  // Private Methods
72  void updateNext() const;
73
74  // Private copy constructor and assignment operator
75  TimerTable(const TimerTable& obj);
76  TimerTable& operator=(const TimerTable& obj);
77
78  // Data Members (m_prefix)
79  Map<Address, Time> m_map;
80  Chip* m_chip_ptr;
81  mutable bool m_next_valid;
82  mutable Time m_next_time; // Only valid if m_next_valid is true
83  mutable Address m_next_address;  // Only valid if m_next_valid is true
84  Consumer* m_consumer_ptr;  // Consumer to signal a wakeup()
85  string m_name;
86};
87
88// ******************* Definitions *******************
89
90// Output operator definition
91extern inline
92ostream& operator<<(ostream& out, const TimerTable& obj)
93{
94  obj.print(out);
95  out << flush;
96  return out;
97}
98#endif //TIMERTABLE_H
99