sc_process_handle.cc revision 13128
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 warn("%s not implemented.\n", __PRETTY_FUNCTION__); 74 return nullptr; 75} 76 77 78sc_process_handle::sc_process_handle() : _gem5_process(nullptr) {} 79 80sc_process_handle::sc_process_handle(const sc_process_handle &handle) : 81 _gem5_process(handle._gem5_process) 82{ 83 if (_gem5_process) 84 _gem5_process->incref(); 85} 86 87sc_process_handle::sc_process_handle(sc_object *obj) : 88 _gem5_process(dynamic_cast<::sc_gem5::Process *>(obj)) 89{ 90 if (_gem5_process) 91 _gem5_process->incref(); 92} 93 94sc_process_handle::~sc_process_handle() 95{ 96 if (_gem5_process) 97 _gem5_process->decref(); 98} 99 100 101bool 102sc_process_handle::valid() const 103{ 104 return _gem5_process != nullptr; 105} 106 107 108sc_process_handle & 109sc_process_handle::operator = (const sc_process_handle &handle) 110{ 111 if (_gem5_process) 112 _gem5_process->decref(); 113 _gem5_process = handle._gem5_process; 114 if (_gem5_process) 115 _gem5_process->incref(); 116 return *this; 117} 118 119bool 120sc_process_handle::operator == (const sc_process_handle &handle) const 121{ 122 return _gem5_process && handle._gem5_process && 123 (_gem5_process == handle._gem5_process); 124} 125 126bool 127sc_process_handle::operator != (const sc_process_handle &handle) const 128{ 129 return !(handle == *this); 130} 131 132bool 133sc_process_handle::operator < (const sc_process_handle &other) const 134{ 135 return _gem5_process < other._gem5_process; 136} 137 138void 139sc_process_handle::swap(sc_process_handle &handle) 140{ 141 ::sc_gem5::Process *temp = handle._gem5_process; 142 handle._gem5_process = _gem5_process; 143 _gem5_process = temp; 144} 145 146 147const char * 148sc_process_handle::name() const 149{ 150 return _gem5_process ? _gem5_process->name() : ""; 151} 152 153sc_curr_proc_kind 154sc_process_handle::proc_kind() const 155{ 156 return _gem5_process ? _gem5_process->procKind() : SC_NO_PROC_; 157} 158 159const std::vector<sc_object *> & 160sc_process_handle::get_child_objects() const 161{ 162 static const std::vector<sc_object *> empty; 163 return _gem5_process ? _gem5_process->get_child_objects() : empty; 164} 165 166const std::vector<sc_event *> & 167sc_process_handle::get_child_events() const 168{ 169 static const std::vector<sc_event *> empty; 170 return _gem5_process ? _gem5_process->get_child_events() : empty; 171} 172 173sc_object * 174sc_process_handle::get_parent_object() const 175{ 176 return _gem5_process ? _gem5_process->get_parent_object() : nullptr; 177} 178 179sc_object * 180sc_process_handle::get_process_object() const 181{ 182 return _gem5_process; 183} 184 185bool 186sc_process_handle::dynamic() const 187{ 188 return _gem5_process ? _gem5_process->dynamic() : false; 189} 190 191bool 192sc_process_handle::terminated() const 193{ 194 return _gem5_process ? _gem5_process->terminated() : false; 195} 196 197const sc_event & 198sc_process_handle::terminated_event() const 199{ 200 if (!_gem5_process) { 201 SC_REPORT_WARNING("(W570) attempt to use an empty " 202 "process handle ignored", "terminated_event()"); 203 static sc_event non_event; 204 return non_event; 205 } 206 return _gem5_process->terminatedEvent(); 207} 208 209 210void 211sc_process_handle::suspend(sc_descendent_inclusion_info include_descendants) 212{ 213 if (!_gem5_process) { 214 SC_REPORT_WARNING("(W570) attempt to use an empty " 215 "process handle ignored", "suspend()"); 216 return; 217 } 218 _gem5_process->suspend(include_descendants == SC_INCLUDE_DESCENDANTS); 219} 220 221void 222sc_process_handle::resume(sc_descendent_inclusion_info include_descendants) 223{ 224 if (!_gem5_process) { 225 SC_REPORT_WARNING("(W570) attempt to use an empty " 226 "process handle ignored", "resume()"); 227 return; 228 } 229 _gem5_process->resume(include_descendants == SC_INCLUDE_DESCENDANTS); 230} 231 232void 233sc_process_handle::disable(sc_descendent_inclusion_info include_descendants) 234{ 235 if (!_gem5_process) { 236 SC_REPORT_WARNING("(W570) attempt to use an empty " 237 "process handle ignored", "disable()"); 238 return; 239 } 240 _gem5_process->disable(include_descendants == SC_INCLUDE_DESCENDANTS); 241} 242 243void 244sc_process_handle::enable(sc_descendent_inclusion_info include_descendants) 245{ 246 if (!_gem5_process) { 247 SC_REPORT_WARNING("(W570) attempt to use an empty " 248 "process handle ignored", "enable()"); 249 return; 250 } 251 _gem5_process->enable(include_descendants == SC_INCLUDE_DESCENDANTS); 252} 253 254void 255sc_process_handle::kill(sc_descendent_inclusion_info include_descendants) 256{ 257 if (!_gem5_process) { 258 SC_REPORT_WARNING("(W570) attempt to use an empty " 259 "process handle ignored", "kill()"); 260 return; 261 } 262 _gem5_process->kill(include_descendants == SC_INCLUDE_DESCENDANTS); 263} 264 265void 266sc_process_handle::reset(sc_descendent_inclusion_info include_descendants) 267{ 268 if (!_gem5_process) { 269 SC_REPORT_WARNING("(W570) attempt to use an empty " 270 "process handle ignored", "reset()"); 271 return; 272 } 273 _gem5_process->reset(include_descendants == SC_INCLUDE_DESCENDANTS); 274} 275 276bool 277sc_process_handle::is_unwinding() 278{ 279 if (!_gem5_process) { 280 SC_REPORT_WARNING("(W570) attempt to use an empty " 281 "process handle ignored", "is_unwinding()"); 282 return false; 283 } 284 return _gem5_process->isUnwinding(); 285} 286 287const sc_event & 288sc_process_handle::reset_event() const 289{ 290 if (!_gem5_process) { 291 SC_REPORT_WARNING("(W570) attempt to use an empty " 292 "process handle ignored", "reset()"); 293 static sc_event non_event; 294 return non_event; 295 } 296 return _gem5_process->resetEvent(); 297} 298 299 300void 301sc_process_handle::sync_reset_on( 302 sc_descendent_inclusion_info include_descendants) 303{ 304 if (!_gem5_process) { 305 SC_REPORT_WARNING("(W570) attempt to use an empty " 306 "process handle ignored", "sync_reset_on()"); 307 return; 308 } 309 _gem5_process->syncResetOn(include_descendants == SC_INCLUDE_DESCENDANTS); 310} 311 312void 313sc_process_handle::sync_reset_off( 314 sc_descendent_inclusion_info include_descendants) 315{ 316 if (!_gem5_process) { 317 SC_REPORT_WARNING("(W570) attempt to use an empty " 318 "process handle ignored", "sync_reset_off()"); 319 return; 320 } 321 _gem5_process->syncResetOff(include_descendants == SC_INCLUDE_DESCENDANTS); 322} 323 324 325sc_process_handle 326sc_get_current_process_handle() 327{ 328 if (sc_is_running()) 329 return sc_process_handle(::sc_gem5::scheduler.current()); 330 else 331 return sc_process_handle(::sc_gem5::Process::newest()); 332} 333 334bool 335sc_is_unwinding() 336{ 337 return sc_get_current_process_handle().is_unwinding(); 338} 339 340bool sc_allow_process_control_corners; 341 342} // namespace sc_core 343