event.cc revision 13073
112955Sgabeblack@google.com/* 212955Sgabeblack@google.com * Copyright 2018 Google, Inc. 312955Sgabeblack@google.com * 412955Sgabeblack@google.com * Redistribution and use in source and binary forms, with or without 512955Sgabeblack@google.com * modification, are permitted provided that the following conditions are 612955Sgabeblack@google.com * met: redistributions of source code must retain the above copyright 712955Sgabeblack@google.com * notice, this list of conditions and the following disclaimer; 812955Sgabeblack@google.com * redistributions in binary form must reproduce the above copyright 912955Sgabeblack@google.com * notice, this list of conditions and the following disclaimer in the 1012955Sgabeblack@google.com * documentation and/or other materials provided with the distribution; 1112955Sgabeblack@google.com * neither the name of the copyright holders nor the names of its 1212955Sgabeblack@google.com * contributors may be used to endorse or promote products derived from 1312955Sgabeblack@google.com * this software without specific prior written permission. 1412955Sgabeblack@google.com * 1512955Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1612955Sgabeblack@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1712955Sgabeblack@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1812955Sgabeblack@google.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 1912955Sgabeblack@google.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2012955Sgabeblack@google.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2112955Sgabeblack@google.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2212955Sgabeblack@google.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2312955Sgabeblack@google.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2412955Sgabeblack@google.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2512955Sgabeblack@google.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2612955Sgabeblack@google.com * 2712955Sgabeblack@google.com * Authors: Gabe Black 2812955Sgabeblack@google.com */ 2912955Sgabeblack@google.com 3012955Sgabeblack@google.com#include "systemc/core/event.hh" 3112955Sgabeblack@google.com 3212988Sgabeblack@google.com#include <algorithm> 3312955Sgabeblack@google.com#include <cstring> 3412955Sgabeblack@google.com#include <utility> 3512955Sgabeblack@google.com 3612957Sgabeblack@google.com#include "base/logging.hh" 3712957Sgabeblack@google.com#include "sim/core.hh" 3812955Sgabeblack@google.com#include "systemc/core/module.hh" 3912955Sgabeblack@google.com#include "systemc/core/scheduler.hh" 4012955Sgabeblack@google.com 4112955Sgabeblack@google.comnamespace sc_gem5 4212955Sgabeblack@google.com{ 4312955Sgabeblack@google.com 4412955Sgabeblack@google.comEvent::Event(sc_core::sc_event *_sc_event) : Event(_sc_event, "") {} 4512955Sgabeblack@google.com 4612955Sgabeblack@google.comEvent::Event(sc_core::sc_event *_sc_event, const char *_basename) : 4713063Sgabeblack@google.com _sc_event(_sc_event), _basename(_basename), 4813063Sgabeblack@google.com delayedNotify([this]() { this->notify(); }) 4912955Sgabeblack@google.com{ 5012955Sgabeblack@google.com Module *p = currentModule(); 5112955Sgabeblack@google.com 5212955Sgabeblack@google.com if (p) 5312955Sgabeblack@google.com parent = p->obj()->sc_obj(); 5412955Sgabeblack@google.com else if (scheduler.current()) 5512955Sgabeblack@google.com parent = scheduler.current(); 5612988Sgabeblack@google.com else 5712988Sgabeblack@google.com parent = nullptr; 5812955Sgabeblack@google.com 5912955Sgabeblack@google.com if (parent) { 6012955Sgabeblack@google.com Object *obj = Object::getFromScObject(parent); 6112988Sgabeblack@google.com obj->addChildEvent(_sc_event); 6212955Sgabeblack@google.com } else { 6312988Sgabeblack@google.com topLevelEvents.emplace(topLevelEvents.end(), _sc_event); 6412955Sgabeblack@google.com } 6512955Sgabeblack@google.com 6612955Sgabeblack@google.com if (parent) 6712955Sgabeblack@google.com _name = std::string(parent->name()) + "." + _basename; 6812955Sgabeblack@google.com else 6912955Sgabeblack@google.com _name = _basename; 7012955Sgabeblack@google.com 7112955Sgabeblack@google.com allEvents.emplace(allEvents.end(), _sc_event); 7212955Sgabeblack@google.com 7312955Sgabeblack@google.com // Determine if we're in the hierarchy (created once initialization starts 7412955Sgabeblack@google.com // means no). 7512955Sgabeblack@google.com} 7612955Sgabeblack@google.com 7712955Sgabeblack@google.comEvent::~Event() 7812955Sgabeblack@google.com{ 7912955Sgabeblack@google.com if (parent) { 8012955Sgabeblack@google.com Object *obj = Object::getFromScObject(parent); 8112988Sgabeblack@google.com obj->delChildEvent(_sc_event); 8212955Sgabeblack@google.com } else { 8312988Sgabeblack@google.com EventsIt it = find(topLevelEvents.begin(), topLevelEvents.end(), 8412988Sgabeblack@google.com _sc_event); 8512988Sgabeblack@google.com assert(it != topLevelEvents.end()); 8612988Sgabeblack@google.com std::swap(*it, topLevelEvents.back()); 8712955Sgabeblack@google.com topLevelEvents.pop_back(); 8812955Sgabeblack@google.com } 8912955Sgabeblack@google.com 9012955Sgabeblack@google.com EventsIt it = findEvent(_name); 9112955Sgabeblack@google.com std::swap(*it, allEvents.back()); 9212955Sgabeblack@google.com allEvents.pop_back(); 9312957Sgabeblack@google.com 9413063Sgabeblack@google.com if (delayedNotify.scheduled()) 9513063Sgabeblack@google.com scheduler.deschedule(&delayedNotify); 9612955Sgabeblack@google.com} 9712955Sgabeblack@google.com 9812955Sgabeblack@google.comconst std::string & 9912955Sgabeblack@google.comEvent::name() const 10012955Sgabeblack@google.com{ 10112955Sgabeblack@google.com return _name; 10212955Sgabeblack@google.com} 10312955Sgabeblack@google.com 10412955Sgabeblack@google.comconst std::string & 10512955Sgabeblack@google.comEvent::basename() const 10612955Sgabeblack@google.com{ 10712955Sgabeblack@google.com return _basename; 10812955Sgabeblack@google.com} 10912955Sgabeblack@google.com 11012955Sgabeblack@google.combool 11112955Sgabeblack@google.comEvent::inHierarchy() const 11212955Sgabeblack@google.com{ 11312955Sgabeblack@google.com return _name.length() != 0; 11412955Sgabeblack@google.com} 11512955Sgabeblack@google.com 11612955Sgabeblack@google.comsc_core::sc_object * 11712955Sgabeblack@google.comEvent::getParentObject() const 11812955Sgabeblack@google.com{ 11912955Sgabeblack@google.com return parent; 12012955Sgabeblack@google.com} 12112955Sgabeblack@google.com 12212955Sgabeblack@google.comvoid 12312955Sgabeblack@google.comEvent::notify() 12412955Sgabeblack@google.com{ 12513073Sgabeblack@google.com // An immediate notification overrides any pending delayed notification. 12613073Sgabeblack@google.com if (delayedNotify.scheduled()) 12713073Sgabeblack@google.com scheduler.deschedule(&delayedNotify); 12813073Sgabeblack@google.com 12912957Sgabeblack@google.com auto local_sensitivities = sensitivities; 13012957Sgabeblack@google.com for (auto s: local_sensitivities) 13112957Sgabeblack@google.com s->notify(this); 13212955Sgabeblack@google.com} 13312955Sgabeblack@google.com 13412955Sgabeblack@google.comvoid 13512955Sgabeblack@google.comEvent::notify(const sc_core::sc_time &t) 13612955Sgabeblack@google.com{ 13713063Sgabeblack@google.com if (delayedNotify.scheduled()) { 13813063Sgabeblack@google.com if (scheduler.delayed(t) >= delayedNotify.when()) 13912957Sgabeblack@google.com return; 14012957Sgabeblack@google.com 14113063Sgabeblack@google.com scheduler.deschedule(&delayedNotify); 14212957Sgabeblack@google.com } 14313063Sgabeblack@google.com scheduler.schedule(&delayedNotify, t); 14412955Sgabeblack@google.com} 14512955Sgabeblack@google.com 14612955Sgabeblack@google.comvoid 14712955Sgabeblack@google.comEvent::cancel() 14812955Sgabeblack@google.com{ 14913063Sgabeblack@google.com if (delayedNotify.scheduled()) 15013063Sgabeblack@google.com scheduler.deschedule(&delayedNotify); 15112955Sgabeblack@google.com} 15212955Sgabeblack@google.com 15312955Sgabeblack@google.combool 15412955Sgabeblack@google.comEvent::triggered() const 15512955Sgabeblack@google.com{ 15612955Sgabeblack@google.com return false; 15712955Sgabeblack@google.com} 15812955Sgabeblack@google.com 15912955Sgabeblack@google.comEvents topLevelEvents; 16012955Sgabeblack@google.comEvents allEvents; 16112955Sgabeblack@google.com 16212955Sgabeblack@google.comEventsIt 16312955Sgabeblack@google.comfindEvent(const std::string &name) 16412955Sgabeblack@google.com{ 16512955Sgabeblack@google.com EventsIt it; 16612955Sgabeblack@google.com for (it = allEvents.begin(); it != allEvents.end(); it++) 16712955Sgabeblack@google.com if (!strcmp((*it)->name(), name.c_str())) 16812955Sgabeblack@google.com break; 16912955Sgabeblack@google.com 17012955Sgabeblack@google.com return it; 17112955Sgabeblack@google.com} 17212955Sgabeblack@google.com 17312955Sgabeblack@google.com} // namespace sc_gem5 174