object.cc revision 13045
1/* 2 * Copyright 2018 Google, Inc. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: redistributions of source code must retain the above copyright 7 * notice, this list of conditions and the following disclaimer; 8 * redistributions in binary form must reproduce the above copyright 9 * notice, this list of conditions and the following disclaimer in the 10 * documentation and/or other materials provided with the distribution; 11 * neither the name of the copyright holders nor the names of its 12 * contributors may be used to endorse or promote products derived from 13 * this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * Authors: Gabe Black 28 */ 29 30#include "systemc/core/object.hh" 31 32#include <algorithm> 33 34#include "base/logging.hh" 35#include "systemc/core/module.hh" 36#include "systemc/core/scheduler.hh" 37 38namespace sc_gem5 39{ 40 41namespace 42{ 43 44ObjectsIt 45findObjectIn(Objects &objects, const std::string &name) 46{ 47 ObjectsIt it; 48 for (it = objects.begin(); it != objects.end(); it++) 49 if (!strcmp((*it)->name(), name.c_str())) 50 break; 51 52 return it; 53} 54 55void 56addObject(Objects *objects, sc_core::sc_object *object) 57{ 58 objects->emplace(objects->end(), object); 59} 60 61void 62popObject(Objects *objects, const std::string &name) 63{ 64 ObjectsIt it = findObjectIn(*objects, name); 65 assert(it != objects->end()); 66 std::swap(objects->back(), *it); 67 objects->pop_back(); 68} 69 70} // anonymous namespace 71 72Object::Object(sc_core::sc_object *_sc_obj) : Object(_sc_obj, "object") {} 73 74Object::Object(sc_core::sc_object *_sc_obj, const char *obj_name) : 75 _sc_obj(_sc_obj), _basename(obj_name), parent(nullptr) 76{ 77 if (_basename == "") 78 _basename = "object"; 79 80 Module *p = currentModule(); 81 if (!p) 82 p = callbackModule(); 83 84 Module *n = newModule(); 85 if (n) { 86 // We are a module in the process of being constructed. 87 n->finish(this); 88 } 89 90 if (p) { 91 // We're "within" a parent module, ie we're being created while its 92 // constructor or end_of_elaboration callback is running. 93 parent = p->obj()->_sc_obj; 94 addObject(&parent->_gem5_object->children, _sc_obj); 95 } else if (scheduler.current()) { 96 // Our parent is the currently running process. 97 parent = scheduler.current(); 98 } else { 99 // We're a top level object. 100 addObject(&topLevelObjects, _sc_obj); 101 } 102 103 addObject(&allObjects, _sc_obj); 104 105 _name = _basename; 106 sc_core::sc_object *sc_p = parent; 107 while (sc_p) { 108 _name = std::string(sc_p->basename()) + std::string(".") + _name; 109 sc_p = sc_p->get_parent_object(); 110 } 111} 112 113Object::Object(sc_core::sc_object *_sc_obj, const Object &arg) : 114 Object(_sc_obj, arg._basename.c_str()) 115{} 116 117Object & 118Object::operator = (const Object &) 119{ 120 return *this; 121} 122 123Object::~Object() 124{ 125 // Promote all children to be top level objects. 126 for (auto child: children) { 127 addObject(&topLevelObjects, child); 128 child->_gem5_object->parent = nullptr; 129 } 130 children.clear(); 131 132 if (parent) 133 popObject(&parent->_gem5_object->children, _name); 134 else 135 popObject(&topLevelObjects, _name); 136 popObject(&allObjects, _name); 137} 138 139const char * 140Object::name() const 141{ 142 return _name.c_str(); 143} 144 145const char * 146Object::basename() const 147{ 148 return _basename.c_str(); 149} 150 151void 152Object::print(std::ostream &out) const 153{ 154 out << name(); 155} 156 157void 158Object::dump(std::ostream &out) const 159{ 160 out << "name = " << name() << "\n"; 161 out << "kind = " << _sc_obj->kind() << "\n"; 162} 163 164const std::vector<sc_core::sc_object *> & 165Object::get_child_objects() const 166{ 167 return children; 168} 169 170const std::vector<sc_core::sc_event *> & 171Object::get_child_events() const 172{ 173 return events; 174} 175 176sc_core::sc_object *Object::get_parent_object() const 177{ 178 return parent; 179} 180 181bool 182Object::add_attribute(sc_core::sc_attr_base &attr) 183{ 184 return cltn.push_back(&attr); 185} 186 187sc_core::sc_attr_base * 188Object::get_attribute(const std::string &attr) 189{ 190 return cltn[attr]; 191} 192 193sc_core::sc_attr_base * 194Object::remove_attribute(const std::string &attr) 195{ 196 return cltn.remove(attr); 197} 198 199void 200Object::remove_all_attributes() 201{ 202 cltn.remove_all(); 203} 204 205int 206Object::num_attributes() const 207{ 208 return cltn.size(); 209} 210 211sc_core::sc_attr_cltn & 212Object::attr_cltn() 213{ 214 return cltn; 215} 216 217const sc_core::sc_attr_cltn & 218Object::attr_cltn() const 219{ 220 return cltn; 221} 222 223sc_core::sc_simcontext * 224Object::simcontext() const 225{ 226 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 227 return nullptr; 228} 229 230EventsIt 231Object::addChildEvent(sc_core::sc_event *e) 232{ 233 return events.emplace(events.end(), e); 234} 235 236void 237Object::delChildEvent(sc_core::sc_event *e) 238{ 239 EventsIt it = std::find(events.begin(), events.end(), e); 240 assert(it != events.end()); 241 std::swap(*it, events.back()); 242 events.pop_back(); 243} 244 245 246Objects topLevelObjects; 247Objects allObjects; 248 249const std::vector<sc_core::sc_object *> & 250getTopLevelScObjects() 251{ 252 return topLevelObjects; 253} 254 255sc_core::sc_object * 256findObject(const char *name, const Objects &objects) 257{ 258 ObjectsIt it = findObjectIn(allObjects, name); 259 return it == allObjects.end() ? nullptr : *it; 260} 261 262} // namespace sc_gem5 263