module.cc revision 13079
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#include "systemc/ext/utils/sc_report_handler.hh" 36 37namespace sc_gem5 38{ 39 40namespace 41{ 42 43std::list<Module *> _modules; 44Module *_new_module; 45 46Module *_callbackModule = nullptr; 47 48} // anonymous namespace 49 50Module::Module(const char *name) : _name(name), _sc_mod(nullptr), _obj(nullptr) 51{ 52 panic_if(_new_module, "Previous module not finished.\n"); 53 _new_module = this; 54} 55 56Module::~Module() 57{ 58 if (_new_module == this) { 59 // Aborted module construction? 60 _new_module = nullptr; 61 } 62 allModules.remove(this); 63} 64 65void 66Module::finish(Object *this_obj) 67{ 68 assert(!_obj); 69 _obj = this_obj; 70 _modules.push_back(this); 71 _new_module = nullptr; 72 // This is called from the constructor of this_obj, so it can't use 73 // dynamic cast. 74 sc_mod(static_cast<::sc_core::sc_module *>(this_obj->sc_obj())); 75 allModules.emplace_back(this); 76} 77 78void 79Module::pop() 80{ 81 panic_if(!_modules.size(), "Popping from empty module list.\n"); 82 panic_if(_modules.back() != this, 83 "Popping module which isn't at the end of the module list.\n"); 84 panic_if(_new_module, "Pop with unfinished module.\n"); 85 _modules.pop_back(); 86} 87 88Module * 89currentModule() 90{ 91 if (_modules.empty()) 92 return nullptr; 93 return _modules.back(); 94} 95 96Module * 97newModuleChecked() 98{ 99 if (!_new_module) { 100 SC_REPORT_ERROR("(E533) module name stack is empty: " 101 "did you forget to add a sc_module_name parameter to " 102 "your module constructor?", nullptr); 103 } 104 return _new_module; 105} 106 107Module * 108newModule() 109{ 110 return _new_module; 111} 112 113void callbackModule(Module *m) { _callbackModule = m; } 114Module *callbackModule() { return _callbackModule; } 115 116std::list<Module *> allModules; 117 118} // namespace sc_gem5 119