TimerTable.hh revision 7055
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#include <iostream> 34#include <string> 35 36#include "mem/gems_common/Map.hh" 37#include "mem/ruby/common/Address.hh" 38#include "mem/ruby/common/Global.hh" 39 40class Consumer; 41 42class TimerTable 43{ 44 public: 45 TimerTable(); 46 47 static void printConfig(std::ostream& out) {} 48 49 void 50 setConsumer(Consumer* consumer_ptr) 51 { 52 assert(m_consumer_ptr == NULL); 53 m_consumer_ptr = consumer_ptr; 54 } 55 56 void 57 setDescription(const std::string& name) 58 { 59 m_name = name; 60 } 61 62 bool isReady() const; 63 const Address& readyAddress() const; 64 bool isSet(const Address& address) const { return m_map.exist(address); } 65 void set(const Address& address, Time relative_latency); 66 void unset(const Address& address); 67 void print(std::ostream& out) const; 68 69 private: 70 void updateNext() const; 71 72 // Private copy constructor and assignment operator 73 TimerTable(const TimerTable& obj); 74 TimerTable& operator=(const TimerTable& obj); 75 76 // Data Members (m_prefix) 77 Map<Address, Time> m_map; 78 mutable bool m_next_valid; 79 mutable Time m_next_time; // Only valid if m_next_valid is true 80 mutable Address m_next_address; // Only valid if m_next_valid is true 81 Consumer* m_consumer_ptr; // Consumer to signal a wakeup() 82 std::string m_name; 83}; 84 85inline std::ostream& 86operator<<(std::ostream& out, const TimerTable& obj) 87{ 88 obj.print(out); 89 out << std::flush; 90 return out; 91} 92 93#endif // __MEM_RUBY_SYSTEM_TIMERTABLE_HH__ 94