object.cc revision 13126:770f2c828e33
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 ? 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 } else if (scheduler.current()) { 95 // Our parent is the currently running process. 96 parent = scheduler.current(); 97 } 98 if (parent) { 99 addObject(&parent->_gem5_object->children, _sc_obj); 100 } else { 101 // We're a top level object. 102 addObject(&topLevelObjects, _sc_obj); 103 } 104 105 addObject(&allObjects, _sc_obj); 106 107 _name = _basename; 108 sc_core::sc_object *sc_p = parent; 109 while (sc_p) { 110 _name = std::string(sc_p->basename()) + std::string(".") + _name; 111 sc_p = sc_p->get_parent_object(); 112 } 113} 114 115Object::Object(sc_core::sc_object *_sc_obj, const Object &arg) : 116 Object(_sc_obj, arg._basename.c_str()) 117{} 118 119Object & 120Object::operator = (const Object &) 121{ 122 return *this; 123} 124 125Object::~Object() 126{ 127 // Promote all children to be top level objects. 128 for (auto child: children) { 129 addObject(&topLevelObjects, child); 130 child->_gem5_object->parent = nullptr; 131 } 132 children.clear(); 133 134 if (parent) 135 popObject(&parent->_gem5_object->children, _name); 136 else 137 popObject(&topLevelObjects, _name); 138 popObject(&allObjects, _name); 139} 140 141const char * 142Object::name() const 143{ 144 return _name.c_str(); 145} 146 147const char * 148Object::basename() const 149{ 150 return _basename.c_str(); 151} 152 153void 154Object::print(std::ostream &out) const 155{ 156 out << name(); 157} 158 159void 160Object::dump(std::ostream &out) const 161{ 162 out << "name = " << name() << "\n"; 163 out << "kind = " << _sc_obj->kind() << "\n"; 164} 165 166const std::vector<sc_core::sc_object *> & 167Object::get_child_objects() const 168{ 169 return children; 170} 171 172const std::vector<sc_core::sc_event *> & 173Object::get_child_events() const 174{ 175 return events; 176} 177 178sc_core::sc_object *Object::get_parent_object() const 179{ 180 return parent; 181} 182 183bool 184Object::add_attribute(sc_core::sc_attr_base &attr) 185{ 186 return cltn.push_back(&attr); 187} 188 189sc_core::sc_attr_base * 190Object::get_attribute(const std::string &attr) 191{ 192 return cltn[attr]; 193} 194 195sc_core::sc_attr_base * 196Object::remove_attribute(const std::string &attr) 197{ 198 return cltn.remove(attr); 199} 200 201void 202Object::remove_all_attributes() 203{ 204 cltn.remove_all(); 205} 206 207int 208Object::num_attributes() const 209{ 210 return cltn.size(); 211} 212 213sc_core::sc_attr_cltn & 214Object::attr_cltn() 215{ 216 return cltn; 217} 218 219const sc_core::sc_attr_cltn & 220Object::attr_cltn() const 221{ 222 return cltn; 223} 224 225sc_core::sc_simcontext * 226Object::simcontext() const 227{ 228 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 229 return nullptr; 230} 231 232EventsIt 233Object::addChildEvent(sc_core::sc_event *e) 234{ 235 return events.emplace(events.end(), e); 236} 237 238void 239Object::delChildEvent(sc_core::sc_event *e) 240{ 241 EventsIt it = std::find(events.begin(), events.end(), e); 242 assert(it != events.end()); 243 std::swap(*it, events.back()); 244 events.pop_back(); 245} 246 247 248Objects topLevelObjects; 249Objects allObjects; 250 251const std::vector<sc_core::sc_object *> & 252getTopLevelScObjects() 253{ 254 return topLevelObjects; 255} 256 257sc_core::sc_object * 258findObject(const char *name, const Objects &objects) 259{ 260 ObjectsIt it = findObjectIn(allObjects, name); 261 return it == allObjects.end() ? nullptr : *it; 262} 263 264} // namespace sc_gem5 265