sc_process_handle.cc revision 13303
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#include "systemc/ext/utils/sc_report_handler.hh" 36 37namespace sc_core 38{ 39 40const char * 41sc_unwind_exception::what() const throw() 42{ 43 return _isReset ? "RESET" : "KILL"; 44} 45 46bool 47sc_unwind_exception::is_reset() const 48{ 49 return _isReset; 50} 51 52sc_unwind_exception::sc_unwind_exception() : _isReset(false) {} 53sc_unwind_exception::sc_unwind_exception(const sc_unwind_exception &e) : 54 _isReset(e._isReset) 55{} 56sc_unwind_exception::~sc_unwind_exception() throw() {} 57 58 59void 60sc_set_location(const char *file, int lineno) 61{ 62 sc_process_b *current = ::sc_gem5::scheduler.current(); 63 if (!current) 64 return; 65 current->file = file; 66 current->lineno = lineno; 67} 68 69 70sc_process_b * 71sc_get_curr_process_handle() 72{ 73 return ::sc_gem5::scheduler.current(); 74} 75 76 77sc_process_handle::sc_process_handle() : _gem5_process(nullptr) {} 78 79sc_process_handle::sc_process_handle(const sc_process_handle &handle) : 80 _gem5_process(handle._gem5_process) 81{ 82 if (_gem5_process) 83 _gem5_process->incref(); 84} 85 86sc_process_handle::sc_process_handle(sc_object *obj) : 87 _gem5_process(dynamic_cast<::sc_gem5::Process *>(obj)) 88{ 89 if (_gem5_process) 90 _gem5_process->incref(); 91} 92 93sc_process_handle::~sc_process_handle() 94{ 95 if (_gem5_process) 96 _gem5_process->decref(); 97} 98 99 100bool 101sc_process_handle::valid() const 102{ 103 return _gem5_process != nullptr; 104} 105 106 107sc_process_handle & 108sc_process_handle::operator = (const sc_process_handle &handle) 109{ 110 if (_gem5_process) 111 _gem5_process->decref(); 112 _gem5_process = handle._gem5_process; 113 if (_gem5_process) 114 _gem5_process->incref(); 115 return *this; 116} 117 118bool 119sc_process_handle::operator == (const sc_process_handle &handle) const 120{ 121 return _gem5_process && handle._gem5_process && 122 (_gem5_process == handle._gem5_process); 123} 124 125bool 126sc_process_handle::operator != (const sc_process_handle &handle) const 127{ 128 return !(handle == *this); 129} 130 131bool 132sc_process_handle::operator < (const sc_process_handle &other) const 133{ 134 return _gem5_process < other._gem5_process; 135} 136 137void 138sc_process_handle::swap(sc_process_handle &handle) 139{ 140 ::sc_gem5::Process *temp = handle._gem5_process; 141 handle._gem5_process = _gem5_process; 142 _gem5_process = temp; 143} 144 145 146const char * 147sc_process_handle::name() const 148{ 149 return _gem5_process ? _gem5_process->name() : ""; 150} 151 152sc_curr_proc_kind 153sc_process_handle::proc_kind() const 154{ 155 return _gem5_process ? _gem5_process->procKind() : SC_NO_PROC_; 156} 157 158const std::vector<sc_object *> & 159sc_process_handle::get_child_objects() const 160{ 161 static const std::vector<sc_object *> empty; 162 return _gem5_process ? _gem5_process->get_child_objects() : empty; 163} 164 165const std::vector<sc_event *> & 166sc_process_handle::get_child_events() const 167{ 168 static const std::vector<sc_event *> empty; 169 return _gem5_process ? _gem5_process->get_child_events() : empty; 170} 171 172sc_object * 173sc_process_handle::get_parent_object() const 174{ 175 return _gem5_process ? _gem5_process->get_parent_object() : nullptr; 176} 177 178sc_object * 179sc_process_handle::get_process_object() const 180{ 181 return _gem5_process; 182} 183 184bool 185sc_process_handle::dynamic() const 186{ 187 return _gem5_process ? _gem5_process->dynamic() : false; 188} 189 190bool 191sc_process_handle::terminated() const 192{ 193 return _gem5_process ? _gem5_process->terminated() : false; 194} 195 196const sc_event & 197sc_process_handle::terminated_event() const 198{ 199 if (!_gem5_process) { 200 SC_REPORT_WARNING("(W570) attempt to use an empty " 201 "process handle ignored", "terminated_event()"); 202 static sc_gem5::InternalScEvent non_event; 203 return non_event; 204 } 205 return _gem5_process->terminatedEvent(); 206} 207 208 209void 210sc_process_handle::suspend(sc_descendent_inclusion_info include_descendants) 211{ 212 if (!_gem5_process) { 213 SC_REPORT_WARNING("(W570) attempt to use an empty " 214 "process handle ignored", "suspend()"); 215 return; 216 } 217 _gem5_process->suspend(include_descendants == SC_INCLUDE_DESCENDANTS); 218} 219 220void 221sc_process_handle::resume(sc_descendent_inclusion_info include_descendants) 222{ 223 if (!_gem5_process) { 224 SC_REPORT_WARNING("(W570) attempt to use an empty " 225 "process handle ignored", "resume()"); 226 return; 227 } 228 _gem5_process->resume(include_descendants == SC_INCLUDE_DESCENDANTS); 229} 230 231void 232sc_process_handle::disable(sc_descendent_inclusion_info include_descendants) 233{ 234 if (!_gem5_process) { 235 SC_REPORT_WARNING("(W570) attempt to use an empty " 236 "process handle ignored", "disable()"); 237 return; 238 } 239 _gem5_process->disable(include_descendants == SC_INCLUDE_DESCENDANTS); 240} 241 242void 243sc_process_handle::enable(sc_descendent_inclusion_info include_descendants) 244{ 245 if (!_gem5_process) { 246 SC_REPORT_WARNING("(W570) attempt to use an empty " 247 "process handle ignored", "enable()"); 248 return; 249 } 250 _gem5_process->enable(include_descendants == SC_INCLUDE_DESCENDANTS); 251} 252 253void 254sc_process_handle::kill(sc_descendent_inclusion_info include_descendants) 255{ 256 if (!_gem5_process) { 257 SC_REPORT_WARNING("(W570) attempt to use an empty " 258 "process handle ignored", "kill()"); 259 return; 260 } 261 _gem5_process->kill(include_descendants == SC_INCLUDE_DESCENDANTS); 262} 263 264void 265sc_process_handle::reset(sc_descendent_inclusion_info include_descendants) 266{ 267 if (!_gem5_process) { 268 SC_REPORT_WARNING("(W570) attempt to use an empty " 269 "process handle ignored", "reset()"); 270 return; 271 } 272 _gem5_process->reset(include_descendants == SC_INCLUDE_DESCENDANTS); 273} 274 275bool 276sc_process_handle::is_unwinding() 277{ 278 if (!_gem5_process) { 279 SC_REPORT_WARNING("(W570) attempt to use an empty " 280 "process handle ignored", "is_unwinding()"); 281 return false; 282 } 283 return _gem5_process->isUnwinding(); 284} 285 286const sc_event & 287sc_process_handle::reset_event() const 288{ 289 if (!_gem5_process) { 290 SC_REPORT_WARNING("(W570) attempt to use an empty " 291 "process handle ignored", "reset()"); 292 static sc_gem5::InternalScEvent non_event; 293 return non_event; 294 } 295 return _gem5_process->resetEvent(); 296} 297 298 299void 300sc_process_handle::sync_reset_on( 301 sc_descendent_inclusion_info include_descendants) 302{ 303 if (!_gem5_process) { 304 SC_REPORT_WARNING("(W570) attempt to use an empty " 305 "process handle ignored", "sync_reset_on()"); 306 return; 307 } 308 _gem5_process->syncResetOn(include_descendants == SC_INCLUDE_DESCENDANTS); 309} 310 311void 312sc_process_handle::sync_reset_off( 313 sc_descendent_inclusion_info include_descendants) 314{ 315 if (!_gem5_process) { 316 SC_REPORT_WARNING("(W570) attempt to use an empty " 317 "process handle ignored", "sync_reset_off()"); 318 return; 319 } 320 _gem5_process->syncResetOff(include_descendants == SC_INCLUDE_DESCENDANTS); 321} 322 323 324sc_process_handle 325sc_get_current_process_handle() 326{ 327 if (sc_is_running()) 328 return sc_process_handle(::sc_gem5::scheduler.current()); 329 else 330 return sc_process_handle(::sc_gem5::Process::newest()); 331} 332 333bool 334sc_is_unwinding() 335{ 336 return sc_get_current_process_handle().is_unwinding(); 337} 338 339bool sc_allow_process_control_corners; 340 341} // namespace sc_core 342