object.cc revision 12984
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 "base/logging.hh" 33#include "systemc/core/module.hh" 34#include "systemc/core/scheduler.hh" 35 36namespace sc_gem5 37{ 38 39namespace 40{ 41 42ObjectsIt 43findObjectIn(Objects &objects, const std::string &name) 44{ 45 ObjectsIt it; 46 for (it = objects.begin(); it != objects.end(); it++) 47 if (!strcmp((*it)->name(), name.c_str())) 48 break; 49 50 return it; 51} 52 53void 54addObject(Objects *objects, sc_core::sc_object *object) 55{ 56 objects->emplace(objects->end(), object); 57} 58 59void 60popObject(Objects *objects, const std::string &name) 61{ 62 ObjectsIt it = findObjectIn(*objects, name); 63 assert(it != objects->end()); 64 std::swap(objects->back(), *it); 65 objects->pop_back(); 66} 67 68} // anonymous namespace 69 70Object::Object(sc_core::sc_object *_sc_obj) : Object(_sc_obj, "object") {} 71 72Object::Object(sc_core::sc_object *_sc_obj, const char *obj_name) : 73 _sc_obj(_sc_obj), _basename(obj_name), parent(nullptr) 74{ 75 if (_basename == "") 76 _basename = "object"; 77 78 Module *p = currentModule(); 79 80 Module *n = newModule(); 81 if (n) { 82 // We are a module in the process of being constructed. 83 n->finish(this); 84 } 85 86 if (p) { 87 // We're "within" a parent module, ie we're being created while its 88 // constructor is running. 89 parent = p->obj()->_sc_obj; 90 addObject(&parent->_gem5_object->children, _sc_obj); 91 } else if (scheduler.current()) { 92 // Our parent is the currently running process. 93 parent = scheduler.current(); 94 } else { 95 // We're a top level object. 96 addObject(&topLevelObjects, _sc_obj); 97 } 98 99 addObject(&allObjects, _sc_obj); 100 101 _name = _basename; 102 sc_core::sc_object *sc_p = parent; 103 while (sc_p) { 104 _name = std::string(sc_p->basename()) + std::string(".") + _name; 105 sc_p = sc_p->get_parent_object(); 106 } 107} 108 109Object::Object(sc_core::sc_object *_sc_obj, const Object &arg) : 110 Object(_sc_obj, arg._basename.c_str()) 111{} 112 113Object & 114Object::operator = (const Object &) 115{ 116 return *this; 117} 118 119Object::~Object() 120{ 121 // Promote all children to be top level objects. 122 for (auto child: children) { 123 addObject(&topLevelObjects, child); 124 child->_gem5_object->parent = nullptr; 125 } 126 children.clear(); 127 128 if (parent) 129 popObject(&parent->_gem5_object->children, _name); 130 else 131 popObject(&topLevelObjects, _name); 132 popObject(&allObjects, _name); 133} 134 135const char * 136Object::name() const 137{ 138 return _name.c_str(); 139} 140 141const char * 142Object::basename() const 143{ 144 return _basename.c_str(); 145} 146 147void 148Object::print(std::ostream &out) const 149{ 150 out << name(); 151} 152 153void 154Object::dump(std::ostream &out) const 155{ 156 out << "name = " << name() << "\n"; 157 out << "kind = " << _sc_obj->kind() << "\n"; 158} 159 160const std::vector<sc_core::sc_object *> & 161Object::get_child_objects() const 162{ 163 return children; 164} 165 166const std::vector<sc_core::sc_event *> & 167Object::get_child_events() const 168{ 169 return events; 170} 171 172sc_core::sc_object *Object::get_parent_object() const 173{ 174 return parent; 175} 176 177bool 178Object::add_attribute(sc_core::sc_attr_base &attr) 179{ 180 return cltn.push_back(&attr); 181} 182 183sc_core::sc_attr_base * 184Object::get_attribute(const std::string &attr) 185{ 186 return cltn[attr]; 187} 188 189sc_core::sc_attr_base * 190Object::remove_attribute(const std::string &attr) 191{ 192 return cltn.remove(attr); 193} 194 195void 196Object::remove_all_attributes() 197{ 198 cltn.remove_all(); 199} 200 201int 202Object::num_attributes() const 203{ 204 return cltn.size(); 205} 206 207sc_core::sc_attr_cltn & 208Object::attr_cltn() 209{ 210 return cltn; 211} 212 213const sc_core::sc_attr_cltn & 214Object::attr_cltn() const 215{ 216 return cltn; 217} 218 219sc_core::sc_simcontext * 220Object::simcontext() const 221{ 222 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 223 return nullptr; 224} 225 226EventsIt 227Object::addChildEvent(sc_core::sc_event *e) 228{ 229 return events.emplace(events.end(), e); 230} 231 232void 233Object::delChildEvent(EventsIt it) 234{ 235 std::swap(*it, events.back()); 236 events.pop_back(); 237} 238 239 240Objects topLevelObjects; 241Objects allObjects; 242 243const std::vector<sc_core::sc_object *> & 244getTopLevelScObjects() 245{ 246 return topLevelObjects; 247} 248 249sc_core::sc_object * 250findObject(const char *name, const Objects &objects) 251{ 252 ObjectsIt it = findObjectIn(allObjects, name); 253 return it == allObjects.end() ? nullptr : *it; 254} 255 256} // namespace sc_gem5 257