TimerTable.hh revision 7039
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; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#ifndef __MEM_RUBY_SYSTEM_TIMERTABLE_HH__ 30#define __MEM_RUBY_SYSTEM_TIMERTABLE_HH__ 31 32#include <cassert> 33 34#include "mem/gems_common/Map.hh" 35#include "mem/ruby/common/Address.hh" 36#include "mem/ruby/common/Global.hh" 37 38class Consumer; 39 40class TimerTable 41{ 42 public: 43 TimerTable(); 44 45 static void printConfig(ostream& out) {} 46 47 void 48 setConsumer(Consumer* consumer_ptr) 49 { 50 assert(m_consumer_ptr == NULL); 51 m_consumer_ptr = consumer_ptr; 52 } 53 54 void 55 setDescription(const string& name) 56 { 57 m_name = name; 58 } 59 60 bool isReady() const; 61 const Address& readyAddress() const; 62 bool isSet(const Address& address) const { return m_map.exist(address); } 63 void set(const Address& address, Time relative_latency); 64 void unset(const Address& address); 65 void print(ostream& out) const; 66 67 private: 68 void updateNext() const; 69 70 // Private copy constructor and assignment operator 71 TimerTable(const TimerTable& obj); 72 TimerTable& operator=(const TimerTable& obj); 73 74 // Data Members (m_prefix) 75 Map<Address, Time> m_map; 76 mutable bool m_next_valid; 77 mutable Time m_next_time; // Only valid if m_next_valid is true 78 mutable Address m_next_address; // Only valid if m_next_valid is true 79 Consumer* m_consumer_ptr; // Consumer to signal a wakeup() 80 string m_name; 81}; 82 83// ******************* Definitions ******************* 84 85// Output operator definition 86inline ostream& 87operator<<(ostream& out, const TimerTable& obj) 88{ 89 obj.print(out); 90 out << flush; 91 return out; 92} 93 94#endif // __MEM_RUBY_SYSTEM_TIMERTABLE_HH__ 95