module.cc revision 12950
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#include <list> 34 35#include "base/logging.hh" 36 37namespace sc_gem5 38{ 39 40namespace 41{ 42 43std::list<Module *> _modules; 44Module *_new_module; 45 46} // anonymous namespace 47 48Module::Module(const char *name) : _name(name), _sc_mod(nullptr), _obj(nullptr) 49{ 50 panic_if(_new_module, "Previous module not finished.\n"); 51 _new_module = this; 52} 53 54void 55Module::finish(Object *this_obj) 56{ 57 assert(!_obj); 58 _obj = this_obj; 59 _modules.push_back(this); 60 _new_module = nullptr; 61} 62 63void 64Module::pop() 65{ 66 panic_if(!_modules.size(), "Popping from empty module list.\n"); 67 panic_if(_modules.back() != this, 68 "Popping module which isn't at the end of the module list.\n"); 69 panic_if(_new_module, "Pop with unfinished module.\n"); 70 _modules.pop_back(); 71} 72 73Module * 74currentModule() 75{ 76 if (_modules.empty()) 77 return nullptr; 78 return _modules.back(); 79} 80 81Module * 82newModule() 83{ 84 return _new_module; 85} 86 87} // namespace sc_gem5 88