sc_process_handle.cc revision 12960:ff77756883e0
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 "base/logging.hh" 31#include "systemc/core/process.hh" 32#include "systemc/core/scheduler.hh" 33#include "systemc/ext/core/sc_main.hh" 34#include "systemc/ext/core/sc_process_handle.hh" 35 36namespace sc_core 37{ 38 39const char * 40sc_unwind_exception::what() const throw() 41{ 42 panic("%s for base class called.\n", __PRETTY_FUNCTION__); 43} 44 45bool 46sc_unwind_exception::is_reset() const 47{ 48 panic("%s for base class called.\n", __PRETTY_FUNCTION__); 49} 50 51sc_unwind_exception::sc_unwind_exception() {} 52sc_unwind_exception::sc_unwind_exception(const sc_unwind_exception &) {} 53sc_unwind_exception::~sc_unwind_exception() throw() {} 54 55 56const char * 57sc_process_b::name() 58{ 59 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 60 return ""; 61} 62 63const char * 64sc_process_b::kind() 65{ 66 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 67 return ""; 68} 69 70 71sc_process_b * 72sc_get_curr_process_handle() 73{ 74 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 75 return nullptr; 76} 77 78 79sc_process_handle::sc_process_handle() : _gem5_process(nullptr) {} 80 81sc_process_handle::sc_process_handle(const sc_process_handle &handle) : 82 _gem5_process(handle._gem5_process) 83{ 84 if (_gem5_process) 85 _gem5_process->incref(); 86} 87 88sc_process_handle::sc_process_handle(sc_object *obj) : 89 _gem5_process(dynamic_cast<::sc_gem5::Process *>(obj)) 90{ 91 if (_gem5_process) 92 _gem5_process->incref(); 93} 94 95sc_process_handle::~sc_process_handle() 96{ 97 if (_gem5_process) 98 _gem5_process->decref(); 99} 100 101 102bool 103sc_process_handle::valid() const 104{ 105 return _gem5_process != nullptr; 106} 107 108 109sc_process_handle & 110sc_process_handle::operator = (const sc_process_handle &handle) 111{ 112 if (_gem5_process) 113 _gem5_process->decref(); 114 _gem5_process = handle._gem5_process; 115 if (_gem5_process) 116 _gem5_process->incref(); 117 return *this; 118} 119 120bool 121sc_process_handle::operator == (const sc_process_handle &handle) const 122{ 123 return _gem5_process && handle._gem5_process && 124 (_gem5_process == handle._gem5_process); 125} 126 127bool 128sc_process_handle::operator != (const sc_process_handle &handle) const 129{ 130 return !(handle == *this); 131} 132 133bool 134sc_process_handle::operator < (const sc_process_handle &other) const 135{ 136 return _gem5_process < other._gem5_process; 137} 138 139void 140sc_process_handle::swap(sc_process_handle &handle) 141{ 142 ::sc_gem5::Process *temp = handle._gem5_process; 143 handle._gem5_process = _gem5_process; 144 _gem5_process = temp; 145} 146 147 148const char * 149sc_process_handle::name() const 150{ 151 return _gem5_process ? _gem5_process->name() : ""; 152} 153 154sc_curr_proc_kind 155sc_process_handle::proc_kind() const 156{ 157 return _gem5_process ? _gem5_process->procKind() : SC_NO_PROC_; 158} 159 160const std::vector<sc_object *> & 161sc_process_handle::get_child_objects() const 162{ 163 static const std::vector<sc_object *> empty; 164 return _gem5_process ? _gem5_process->get_child_objects() : empty; 165} 166 167const std::vector<sc_event *> & 168sc_process_handle::get_child_events() const 169{ 170 static const std::vector<sc_event *> empty; 171 return _gem5_process ? _gem5_process->get_child_events() : empty; 172} 173 174sc_object * 175sc_process_handle::get_parent_object() const 176{ 177 return _gem5_process ? _gem5_process->get_parent_object() : nullptr; 178} 179 180sc_object * 181sc_process_handle::get_process_object() const 182{ 183 return _gem5_process; 184} 185 186bool 187sc_process_handle::dynamic() const 188{ 189 return _gem5_process ? _gem5_process->dynamic() : false; 190} 191 192bool 193sc_process_handle::terminated() const 194{ 195 return _gem5_process ? _gem5_process->terminated() : false; 196} 197 198const sc_event & 199sc_process_handle::terminated_event() const 200{ 201 static sc_event non_event; 202 return _gem5_process ? _gem5_process->terminatedEvent() : non_event; 203} 204 205 206void 207sc_process_handle::suspend(sc_descendent_inclusion_info include_descendants) 208{ 209 if (!_gem5_process) 210 return; 211 _gem5_process->suspend(include_descendants == SC_INCLUDE_DESCENDANTS); 212} 213 214void 215sc_process_handle::resume(sc_descendent_inclusion_info include_descendants) 216{ 217 if (!_gem5_process) 218 return; 219 _gem5_process->resume(include_descendants == SC_INCLUDE_DESCENDANTS); 220} 221 222void 223sc_process_handle::disable(sc_descendent_inclusion_info include_descendants) 224{ 225 if (!_gem5_process) 226 return; 227 _gem5_process->disable(include_descendants == SC_INCLUDE_DESCENDANTS); 228} 229 230void 231sc_process_handle::enable(sc_descendent_inclusion_info include_descendants) 232{ 233 if (!_gem5_process) 234 return; 235 _gem5_process->enable(include_descendants == SC_INCLUDE_DESCENDANTS); 236} 237 238void 239sc_process_handle::kill(sc_descendent_inclusion_info include_descendants) 240{ 241 if (!_gem5_process) 242 return; 243 _gem5_process->kill(include_descendants == SC_INCLUDE_DESCENDANTS); 244} 245 246void 247sc_process_handle::reset(sc_descendent_inclusion_info include_descendants) 248{ 249 if (!_gem5_process) 250 return; 251 _gem5_process->reset(include_descendants == SC_INCLUDE_DESCENDANTS); 252} 253 254bool 255sc_process_handle::is_unwinding() 256{ 257 if (!_gem5_process) { 258 //TODO This should generate a systemc style warning if the handle is 259 //invalid. 260 return false; 261 } else { 262 return _gem5_process->isUnwinding(); 263 } 264} 265 266const sc_event & 267sc_process_handle::reset_event() const 268{ 269 static sc_event non_event; 270 return _gem5_process ? _gem5_process->resetEvent() : non_event; 271} 272 273 274void 275sc_process_handle::sync_reset_on( 276 sc_descendent_inclusion_info include_descendants) 277{ 278 if (!_gem5_process) 279 return; 280 _gem5_process->syncResetOn(include_descendants == SC_INCLUDE_DESCENDANTS); 281} 282 283void 284sc_process_handle::sync_reset_off( 285 sc_descendent_inclusion_info include_descendants) 286{ 287 if (!_gem5_process) 288 return; 289 _gem5_process->syncResetOff(include_descendants == SC_INCLUDE_DESCENDANTS); 290} 291 292 293sc_process_handle 294sc_get_current_process_handle() 295{ 296 if (sc_is_running()) 297 return sc_process_handle(::sc_gem5::scheduler.current()); 298 else 299 return sc_process_handle(::sc_gem5::Process::newest()); 300} 301 302bool 303sc_is_unwinding() 304{ 305 return sc_get_current_process_handle().is_unwinding(); 306} 307 308bool sc_allow_process_control_corners; 309 310} // namespace sc_core 311