src/s4u/s4u_actor.cpp

   1 /* Copyright (c) 2006-2017. The SimGrid Team. All rights reserved.          */
   2
   3 /* This program is free software; you can redistribute it and/or modify it
   4  * under the terms of the license (GNU LGPL) which comes with this package. */
   5
   6 #include "xbt/log.h"
   7
   8 #include "simgrid/s4u/Actor.hpp"
   9 #include "simgrid/s4u/Comm.hpp"
  10 #include "simgrid/s4u/Exec.hpp"
  11 #include "simgrid/s4u/Host.hpp"
  12 #include "simgrid/s4u/Mailbox.hpp"
  13
  14 #include "src/kernel/context/Context.hpp"
  15 #include "src/simix/smx_private.hpp"
  16
  17 #include <sstream>
  18
  19 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_actor, "S4U actors");
  20
  21 namespace simgrid {
  22 namespace s4u {
  23
  24 // ***** Actor creation *****
  25 ActorPtr Actor::self()
  26 {
  27   smx_context_t self_context = SIMIX_context_self();
  28   if (self_context == nullptr)
  29     return simgrid::s4u::ActorPtr();
  30
  31   return self_context->process()->iface();
  32 }
  33
  34 ActorPtr Actor::createActor(const char* name, s4u::Host* host, std::function<void()> code)
  35 {
  36   simgrid::simix::ActorImpl* actor = simcall_process_create(name, std::move(code), nullptr, host, nullptr);
  37   return actor->iface();
  38 }
  39
  40 ActorPtr Actor::createActor(const char* name, s4u::Host* host, const char* function, std::vector<std::string> args)
  41 {
  42   simgrid::simix::ActorCodeFactory& factory = SIMIX_get_actor_code_factory(function);
  43   simgrid::simix::ActorCode code = factory(std::move(args));
  44   simgrid::simix::ActorImpl* actor          = simcall_process_create(name, std::move(code), nullptr, host, nullptr);
  45   return actor->iface();
  46 }
  47
  48 void intrusive_ptr_add_ref(Actor* actor)
  49 {
  50   intrusive_ptr_add_ref(actor->pimpl_);
  51 }
  52 void intrusive_ptr_release(Actor* actor)
  53 {
  54   intrusive_ptr_release(actor->pimpl_);
  55 }
  56
  57 // ***** Actor methods *****
  58
  59 void Actor::join() {
  60   simcall_process_join(this->pimpl_, -1);
  61 }
  62
  63 void Actor::join(double timeout)
  64 {
  65   simcall_process_join(this->pimpl_, timeout);
  66 }
  67
  68 void Actor::setAutoRestart(bool autorestart) {
  69   simgrid::simix::kernelImmediate([this, autorestart]() { pimpl_->auto_restart = autorestart; });
  70 }
  71
  72 void Actor::onExit(int_f_pvoid_pvoid_t fun, void* data)
  73 {
  74   simcall_process_on_exit(pimpl_, fun, data);
  75 }
  76
  77 void Actor::migrate(Host* new_host)
  78 {
  79   simgrid::simix::kernelImmediate([this, new_host]() { pimpl_->new_host = new_host; });
  80 }
  81
  82 s4u::Host* Actor::getHost()
  83 {
  84   return this->pimpl_->host;
  85 }
  86
  87 void Actor::daemonize()
  88 {
  89   simgrid::simix::kernelImmediate([this]() { pimpl_->daemonize(); });
  90 }
  91
  92 const simgrid::xbt::string& Actor::getName() const
  93 {
  94   return this->pimpl_->getName();
  95 }
  96
  97 const char* Actor::getCname() const
  98 {
  99   return this->pimpl_->getCname();
 100 }
 101
 102 aid_t Actor::getPid()
 103 {
 104   return this->pimpl_->pid;
 105 }
 106
 107 aid_t Actor::getPpid()
 108 {
 109   return this->pimpl_->ppid;
 110 }
 111
 112 void Actor::suspend()
 113 {
 114   simcall_process_suspend(pimpl_);
 115 }
 116
 117 void Actor::resume()
 118 {
 119   simgrid::simix::kernelImmediate([this] { pimpl_->resume(); });
 120 }
 121
 122 int Actor::isSuspended()
 123 {
 124   return simgrid::simix::kernelImmediate([this] { return pimpl_->suspended; });
 125 }
 126
 127 void Actor::setKillTime(double time) {
 128   simcall_process_set_kill_time(pimpl_,time);
 129 }
 130
 131 /** \brief Get the kill time of an actor(or 0 if unset). */
 132 double Actor::getKillTime()
 133 {
 134   return SIMIX_timer_get_date(pimpl_->kill_timer);
 135 }
 136
 137 void Actor::kill(aid_t pid)
 138 {
 139   smx_actor_t process = SIMIX_process_from_PID(pid);
 140   if(process != nullptr) {
 141     simgrid::simix::kernelImmediate([process] { SIMIX_process_kill(process, process); });
 142   } else {
 143     std::ostringstream oss;
 144     oss << "kill: ("<< pid <<") - No such process" << std::endl;
 145     throw std::runtime_error(oss.str());
 146   }
 147 }
 148
 149 smx_actor_t Actor::getImpl() {
 150   return pimpl_;
 151 }
 152
 153 void Actor::kill() {
 154   smx_actor_t process = SIMIX_process_self();
 155   simgrid::simix::kernelImmediate(
 156       [this, process] { SIMIX_process_kill(pimpl_, (pimpl_ == simix_global->maestro_process) ? pimpl_ : process); });
 157 }
 158
 159 // ***** Static functions *****
 160
 161 ActorPtr Actor::byPid(aid_t pid)
 162 {
 163   smx_actor_t process = SIMIX_process_from_PID(pid);
 164   if (process != nullptr)
 165     return process->iface();
 166   else
 167     return ActorPtr();
 168 }
 169
 170 void Actor::killAll()
 171 {
 172   simcall_process_killall(1);
 173 }
 174
 175 void Actor::killAll(int resetPid)
 176 {
 177   simcall_process_killall(resetPid);
 178 }
 179
 180 std::map<std::string, std::string>* Actor::getProperties()
 181 {
 182   return simgrid::simix::kernelImmediate([this] { return this->pimpl_->getProperties(); });
 183 }
 184
 185 /** Retrieve the property value (or nullptr if not set) */
 186 const char* Actor::getProperty(const char* key)
 187 {
 188   return simgrid::simix::kernelImmediate([this, key] { return pimpl_->getProperty(key); });
 189 }
 190
 191 void Actor::setProperty(const char* key, const char* value)
 192 {
 193   simgrid::simix::kernelImmediate([this, key, value] { pimpl_->setProperty(key, value); });
 194 }
 195
 196 Actor* Actor::restart()
 197 {
 198   return simgrid::simix::kernelImmediate([this]() { return pimpl_->restart(); });
 199 }
 200
 201 ExecPtr Actor::exec_init(double flops_amount)
 202 {
 203   ExecPtr res        = ExecPtr(new Exec());
 204   res->host_         = this->getHost();
 205   res->flops_amount_ = flops_amount;
 206   res->setRemains(flops_amount);
 207   return res;
 208 }
 209
 210 ExecPtr Actor::exec_async(double flops)
 211 {
 212   ExecPtr res = exec_init(flops);
 213   res->start();
 214   return res;
 215 }
 216
 217 // ***** this_actor *****
 218
 219 namespace this_actor {
 220
 221 /** Returns true if run from the kernel mode, and false if run from a real actor
 222  *
 223  * Everything that is run out of any actor (simulation setup before the engine is run,
 224  * computing the model evolutions as a result to the actors' action, etc) is run in
 225  * kernel mode, just as in any operating systems.
 226  *
 227  * In SimGrid, the actor in charge of doing the stuff in kernel mode is called Maestro,
 228  * because it is the one scheduling when the others should move or wait.
 229  */
 230 bool isMaestro()
 231 {
 232   smx_actor_t process = SIMIX_process_self();
 233   return process == nullptr || process == simix_global->maestro_process;
 234 }
 235
 236 void sleep_for(double duration)
 237 {
 238   if (duration > 0)
 239     simcall_process_sleep(duration);
 240 }
 241
 242 void yield()
 243 {
 244   simgrid::simix::kernelImmediate([] { /* do nothing*/ });
 245 }
 246
 247 XBT_PUBLIC(void) sleep_until(double timeout)
 248 {
 249   double now = SIMIX_get_clock();
 250   if (timeout > now)
 251     simcall_process_sleep(timeout - now);
 252 }
 253
 254 void execute(double flops)
 255 {
 256   smx_activity_t s = simcall_execution_start(nullptr, flops, 1.0 /*priority*/, 0. /*bound*/, getHost());
 257   simcall_execution_wait(s);
 258 }
 259
 260 void execute(double flops, double priority)
 261 {
 262   smx_activity_t s = simcall_execution_start(nullptr, flops, 1 / priority /*priority*/, 0. /*bound*/, getHost());
 263   simcall_execution_wait(s);
 264 }
 265
 266 void parallel_execute(int host_nb, sg_host_t* host_list, double* flops_amount, double* bytes_amount, double timeout)
 267 {
 268   smx_activity_t s =
 269       simcall_execution_parallel_start(nullptr, host_nb, host_list, flops_amount, bytes_amount, -1, timeout);
 270   simcall_execution_wait(s);
 271 }
 272
 273 void parallel_execute(int host_nb, sg_host_t* host_list, double* flops_amount, double* bytes_amount)
 274 {
 275   smx_activity_t s = simcall_execution_parallel_start(nullptr, host_nb, host_list, flops_amount, bytes_amount, -1, -1);
 276   simcall_execution_wait(s);
 277 }
 278
 279 void* recv(MailboxPtr chan) // deprecated
 280 {
 281   return chan->get();
 282 }
 283
 284 void* recv(MailboxPtr chan, double timeout) // deprecated
 285 {
 286   return chan->get(timeout);
 287 }
 288
 289 void send(MailboxPtr chan, void* payload, double simulatedSize) // deprecated
 290 {
 291   chan->put(payload, simulatedSize);
 292 }
 293
 294 void send(MailboxPtr chan, void* payload, double simulatedSize, double timeout) // deprecated
 295 {
 296   chan->put(payload, simulatedSize, timeout);
 297 }
 298
 299 CommPtr isend(MailboxPtr chan, void* payload, double simulatedSize) // deprecated
 300 {
 301   return chan->put_async(payload, simulatedSize);
 302 }
 303
 304 CommPtr irecv(MailboxPtr chan, void** data) // deprecated
 305 {
 306   return chan->get_async(data);
 307 }
 308
 309 aid_t getPid()
 310 {
 311   return SIMIX_process_self()->pid;
 312 }
 313
 314 aid_t getPpid()
 315 {
 316   return SIMIX_process_self()->ppid;
 317 }
 318
 319 std::string getName()
 320 {
 321   return SIMIX_process_self()->getName();
 322 }
 323
 324 const char* getCname()
 325 {
 326   return SIMIX_process_self()->getCname();
 327 }
 328
 329 Host* getHost()
 330 {
 331   return SIMIX_process_self()->host;
 332 }
 333
 334 void suspend()
 335 {
 336   simcall_process_suspend(SIMIX_process_self());
 337 }
 338
 339 void resume()
 340 {
 341   smx_actor_t process = SIMIX_process_self();
 342   simgrid::simix::kernelImmediate([process] { process->resume(); });
 343 }
 344
 345 bool isSuspended()
 346 {
 347   smx_actor_t process = SIMIX_process_self();
 348   return simgrid::simix::kernelImmediate([process] { return process->suspended; });
 349 }
 350
 351 void kill()
 352 {
 353   smx_actor_t process = SIMIX_process_self();
 354   simgrid::simix::kernelImmediate([process] { SIMIX_process_kill(process, process); });
 355 }
 356
 357 void onExit(int_f_pvoid_pvoid_t fun, void* data)
 358 {
 359   simcall_process_on_exit(SIMIX_process_self(), fun, data);
 360 }
 361
 362 void migrate(Host* new_host)
 363 {
 364   smx_actor_t process = SIMIX_process_self();
 365   simgrid::simix::kernelImmediate([process, new_host] { process->new_host = new_host; });
 366 }
 367 }
 368 }
 369 }