event.cc revision 13243
12SN/A/* 24039Sbinkertn@umich.edu * Copyright 2018 Google, Inc. 32SN/A * 42SN/A * Redistribution and use in source and binary forms, with or without 52SN/A * modification, are permitted provided that the following conditions are 62SN/A * met: redistributions of source code must retain the above copyright 72SN/A * notice, this list of conditions and the following disclaimer; 82SN/A * redistributions in binary form must reproduce the above copyright 92SN/A * notice, this list of conditions and the following disclaimer in the 102SN/A * documentation and/or other materials provided with the distribution; 112SN/A * neither the name of the copyright holders nor the names of its 122SN/A * contributors may be used to endorse or promote products derived from 132SN/A * this software without specific prior written permission. 142SN/A * 152SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 162SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 172SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 182SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 192SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 202SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 212SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 222SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 232SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 242SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 252SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 262SN/A * 272665Ssaidi@eecs.umich.edu * Authors: Gabe Black 282665Ssaidi@eecs.umich.edu */ 292665Ssaidi@eecs.umich.edu 302SN/A#include "systemc/core/event.hh" 312SN/A 328229Snate@binkert.org#include <algorithm> 332SN/A#include <cstring> 342SN/A#include <utility> 352SN/A 362SN/A#include "base/logging.hh" 3756SN/A#include "sim/core.hh" 384046Sbinkertn@umich.edu#include "systemc/core/module.hh" 394046Sbinkertn@umich.edu#include "systemc/core/scheduler.hh" 4056SN/A#include "systemc/ext/core/sc_main.hh" 412SN/A#include "systemc/ext/core/sc_module.hh" 422SN/A 432SN/Anamespace sc_gem5 442SN/A{ 458232Snate@binkert.org 462SN/AEvent::Event(sc_core::sc_event *_sc_event) : Event(_sc_event, nullptr) {} 474074Sbinkertn@umich.edu 482SN/AEvent::Event(sc_core::sc_event *_sc_event, const char *_basename_cstr) : 492SN/A _sc_event(_sc_event), _basename(_basename_cstr ? _basename_cstr : ""), 502SN/A delayedNotify([this]() { this->notify(); }), _triggeredStamp(~0ULL) 512SN/A{ 522SN/A Module *p = currentModule(); 532SN/A 542SN/A if (_basename == "" && ::sc_core::sc_is_running()) 55488SN/A _basename = ::sc_core::sc_gen_unique_name("event"); 564046Sbinkertn@umich.edu 574046Sbinkertn@umich.edu if (p) 584046Sbinkertn@umich.edu parent = p->obj()->sc_obj(); 594046Sbinkertn@umich.edu else if (scheduler.current()) 604046Sbinkertn@umich.edu parent = scheduler.current(); 614046Sbinkertn@umich.edu else 624046Sbinkertn@umich.edu parent = nullptr; 634046Sbinkertn@umich.edu 644046Sbinkertn@umich.edu std::string original_name = _basename; 654046Sbinkertn@umich.edu _basename = pickUniqueName(parent, _basename); 668640SAli.Saidi@ARM.com 678640SAli.Saidi@ARM.com if (parent) { 684046Sbinkertn@umich.edu Object *obj = Object::getFromScObject(parent); 692SN/A obj->addChildEvent(_sc_event); 701031SN/A } else { 712SN/A topLevelEvents.emplace(topLevelEvents.end(), _sc_event); 7210292SAndreas.Sandberg@ARM.com } 7310292SAndreas.Sandberg@ARM.com 7410292SAndreas.Sandberg@ARM.com std::string path = parent ? (std::string(parent->name()) + ".") : ""; 754046Sbinkertn@umich.edu 764046Sbinkertn@umich.edu if (original_name != "" && _basename != original_name) { 7710292SAndreas.Sandberg@ARM.com std::string message = path + original_name + 782SN/A ". Latter declaration will be renamed to " + 794046Sbinkertn@umich.edu path + _basename; 802SN/A SC_REPORT_WARNING("(W505) object already exists", message.c_str()); 8110292SAndreas.Sandberg@ARM.com } 8210292SAndreas.Sandberg@ARM.com 832SN/A _name = path + _basename; 8410292SAndreas.Sandberg@ARM.com 8510292SAndreas.Sandberg@ARM.com allEvents.emplace(allEvents.end(), _sc_event); 862SN/A 8710292SAndreas.Sandberg@ARM.com // Determine if we're in the hierarchy (created once initialization starts 882SN/A // means no). 892SN/A} 904046Sbinkertn@umich.edu 914046Sbinkertn@umich.eduEvent::~Event() 922SN/A{ 9310292SAndreas.Sandberg@ARM.com if (parent) { 9410292SAndreas.Sandberg@ARM.com Object *obj = Object::getFromScObject(parent); 9510292SAndreas.Sandberg@ARM.com obj->delChildEvent(_sc_event); 962SN/A } else { 9710292SAndreas.Sandberg@ARM.com EventsIt it = find(topLevelEvents.begin(), topLevelEvents.end(), 9810292SAndreas.Sandberg@ARM.com _sc_event); 9910292SAndreas.Sandberg@ARM.com assert(it != topLevelEvents.end()); 1002SN/A std::swap(*it, topLevelEvents.back()); 1014046Sbinkertn@umich.edu topLevelEvents.pop_back(); 1022SN/A } 1032SN/A 1042SN/A EventsIt it = findEvent(_name); 1052SN/A std::swap(*it, allEvents.back()); 1062SN/A allEvents.pop_back(); 1072SN/A 1082SN/A if (delayedNotify.scheduled()) 1092SN/A scheduler.deschedule(&delayedNotify); 1102SN/A} 1112SN/A 1122SN/Aconst std::string & 1132SN/AEvent::name() const 1142SN/A{ 1152SN/A return _name; 1162SN/A} 1174046Sbinkertn@umich.edu 1182SN/Aconst std::string & 1192SN/AEvent::basename() const 1202SN/A{ 1212SN/A return _basename; 1222SN/A} 1232SN/A 1242SN/Abool 125