module.cc revision 13046
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/module.hh" 31 32#include <cassert> 33 34#include "base/logging.hh" 35 36namespace sc_gem5 37{ 38 39namespace 40{ 41 42std::list<Module *> _modules; 43Module *_new_module; 44 45Module *_callbackModule = nullptr; 46 47} // anonymous namespace 48 49Module::Module(const char *name) : _name(name), _sc_mod(nullptr), _obj(nullptr) 50{ 51 panic_if(_new_module, "Previous module not finished.\n"); 52 _new_module = this; 53} 54 55Module::~Module() { allModules.remove(this); } 56 57void 58Module::finish(Object *this_obj) 59{ 60 assert(!_obj); 61 _obj = this_obj; 62 _modules.push_back(this); 63 _new_module = nullptr; 64 // This is called from the constructor of this_obj, so it can't use 65 // dynamic cast. 66 sc_mod(static_cast<::sc_core::sc_module *>(this_obj->sc_obj())); 67 allModules.emplace_back(this); 68} 69 70void 71Module::pop() 72{ 73 panic_if(!_modules.size(), "Popping from empty module list.\n"); 74 panic_if(_modules.back() != this, 75 "Popping module which isn't at the end of the module list.\n"); 76 panic_if(_new_module, "Pop with unfinished module.\n"); 77 _modules.pop_back(); 78} 79 80Module * 81currentModule() 82{ 83 if (_modules.empty()) 84 return nullptr; 85 return _modules.back(); 86} 87 88Module * 89newModule() 90{ 91 return _new_module; 92} 93 94void callbackModule(Module *m) { _callbackModule = m; } 95Module *callbackModule() { return _callbackModule; } 96 97std::list<Module *> allModules; 98 99} // namespace sc_gem5 100