1 /* Copyright (c) 2006-2017. The SimGrid Team. All rights reserved. */
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. */
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"
14 #include "src/kernel/context/Context.hpp"
15 #include "src/simix/smx_private.hpp"
19 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_actor, "S4U actors");
24 // ***** Actor creation *****
25 ActorPtr Actor::self()
27 smx_context_t self_context = SIMIX_context_self();
28 if (self_context == nullptr)
29 return simgrid::s4u::ActorPtr();
31 return self_context->process()->iface();
34 ActorPtr Actor::createActor(const char* name, s4u::Host* host, std::function<void()> code)
36 simgrid::simix::ActorImpl* actor = simcall_process_create(name, std::move(code), nullptr, host, nullptr);
37 return actor->iface();
40 ActorPtr Actor::createActor(const char* name, s4u::Host* host, const char* function, std::vector<std::string> args)
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();
48 void intrusive_ptr_add_ref(Actor* actor)
50 intrusive_ptr_add_ref(actor->pimpl_);
52 void intrusive_ptr_release(Actor* actor)
54 intrusive_ptr_release(actor->pimpl_);
57 // ***** Actor methods *****
60 simcall_process_join(this->pimpl_, -1);
63 void Actor::join(double timeout)
65 simcall_process_join(this->pimpl_, timeout);
68 void Actor::setAutoRestart(bool autorestart) {
69 simgrid::simix::kernelImmediate([this, autorestart]() { pimpl_->auto_restart = autorestart; });
72 void Actor::onExit(int_f_pvoid_pvoid_t fun, void* data)
74 simcall_process_on_exit(pimpl_, fun, data);
77 void Actor::migrate(Host* new_host)
79 simgrid::simix::kernelImmediate([this, new_host]() { pimpl_->new_host = new_host; });
82 s4u::Host* Actor::getHost()
84 return this->pimpl_->host;
87 void Actor::daemonize()
89 simgrid::simix::kernelImmediate([this]() { pimpl_->daemonize(); });
92 const simgrid::xbt::string& Actor::getName() const
94 return this->pimpl_->getName();
97 const char* Actor::getCname() const
99 return this->pimpl_->getCname();
102 aid_t Actor::getPid()
104 return this->pimpl_->pid;
107 aid_t Actor::getPpid()
109 return this->pimpl_->ppid;
112 void Actor::suspend()
114 simcall_process_suspend(pimpl_);
119 simgrid::simix::kernelImmediate([this] { pimpl_->resume(); });
122 int Actor::isSuspended()
124 return simgrid::simix::kernelImmediate([this] { return pimpl_->suspended; });
127 void Actor::setKillTime(double time) {
128 simcall_process_set_kill_time(pimpl_,time);
131 /** \brief Get the kill time of an actor(or 0 if unset). */
132 double Actor::getKillTime()
134 return SIMIX_timer_get_date(pimpl_->kill_timer);
137 void Actor::kill(aid_t pid)
139 smx_actor_t process = SIMIX_process_from_PID(pid);
140 if(process != nullptr) {
141 simgrid::simix::kernelImmediate([process] { SIMIX_process_kill(process, process); });
143 std::ostringstream oss;
144 oss << "kill: ("<< pid <<") - No such process" << std::endl;
145 throw std::runtime_error(oss.str());
149 smx_actor_t Actor::getImpl() {
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); });
159 // ***** Static functions *****
161 ActorPtr Actor::byPid(aid_t pid)
163 smx_actor_t process = SIMIX_process_from_PID(pid);
164 if (process != nullptr)
165 return process->iface();
170 void Actor::killAll()
172 simcall_process_killall(1);
175 void Actor::killAll(int resetPid)
177 simcall_process_killall(resetPid);
180 std::map<std::string, std::string>* Actor::getProperties()
182 return simgrid::simix::kernelImmediate([this] { return this->pimpl_->getProperties(); });
185 /** Retrieve the property value (or nullptr if not set) */
186 const char* Actor::getProperty(const char* key)
188 return simgrid::simix::kernelImmediate([this, key] { return pimpl_->getProperty(key); });
191 void Actor::setProperty(const char* key, const char* value)
193 simgrid::simix::kernelImmediate([this, key, value] { pimpl_->setProperty(key, value); });
196 Actor* Actor::restart()
198 return simgrid::simix::kernelImmediate([this]() { return pimpl_->restart(); });
201 // ***** this_actor *****
203 namespace this_actor {
205 /** Returns true if run from the kernel mode, and false if run from a real actor
207 * Everything that is run out of any actor (simulation setup before the engine is run,
208 * computing the model evolutions as a result to the actors' action, etc) is run in
209 * kernel mode, just as in any operating systems.
211 * In SimGrid, the actor in charge of doing the stuff in kernel mode is called Maestro,
212 * because it is the one scheduling when the others should move or wait.
216 smx_actor_t process = SIMIX_process_self();
217 return process == nullptr || process == simix_global->maestro_process;
220 void sleep_for(double duration)
223 simcall_process_sleep(duration);
228 simgrid::simix::kernelImmediate([] { /* do nothing*/ });
231 XBT_PUBLIC(void) sleep_until(double timeout)
233 double now = SIMIX_get_clock();
235 simcall_process_sleep(timeout - now);
238 void execute(double flops)
240 smx_activity_t s = simcall_execution_start(nullptr, flops, 1.0 /*priority*/, 0. /*bound*/, getHost());
241 simcall_execution_wait(s);
244 void execute(double flops, double priority)
246 smx_activity_t s = simcall_execution_start(nullptr, flops, 1 / priority /*priority*/, 0. /*bound*/, getHost());
247 simcall_execution_wait(s);
250 void parallel_execute(int host_nb, sg_host_t* host_list, double* flops_amount, double* bytes_amount, double timeout)
253 simcall_execution_parallel_start(nullptr, host_nb, host_list, flops_amount, bytes_amount, -1, timeout);
254 simcall_execution_wait(s);
257 void parallel_execute(int host_nb, sg_host_t* host_list, double* flops_amount, double* bytes_amount)
259 smx_activity_t s = simcall_execution_parallel_start(nullptr, host_nb, host_list, flops_amount, bytes_amount, -1, -1);
260 simcall_execution_wait(s);
263 ExecPtr exec_init(double flops_amount)
265 ExecPtr res = ExecPtr(new Exec());
266 res->host_ = getHost();
267 res->flops_amount_ = flops_amount;
268 res->setRemains(flops_amount);
272 ExecPtr exec_async(double flops)
274 ExecPtr res = exec_init(flops);
279 void* recv(MailboxPtr chan) // deprecated
284 void* recv(MailboxPtr chan, double timeout) // deprecated
286 return chan->get(timeout);
289 void send(MailboxPtr chan, void* payload, double simulatedSize) // deprecated
291 chan->put(payload, simulatedSize);
294 void send(MailboxPtr chan, void* payload, double simulatedSize, double timeout) // deprecated
296 chan->put(payload, simulatedSize, timeout);
299 CommPtr isend(MailboxPtr chan, void* payload, double simulatedSize) // deprecated
301 return chan->put_async(payload, simulatedSize);
304 CommPtr irecv(MailboxPtr chan, void** data) // deprecated
306 return chan->get_async(data);
311 return SIMIX_process_self()->pid;
316 return SIMIX_process_self()->ppid;
319 std::string getName()
321 return SIMIX_process_self()->getName();
324 const char* getCname()
326 return SIMIX_process_self()->getCname();
331 return SIMIX_process_self()->host;
336 simcall_process_suspend(SIMIX_process_self());
341 smx_actor_t process = SIMIX_process_self();
342 simgrid::simix::kernelImmediate([process] { process->resume(); });
347 smx_actor_t process = SIMIX_process_self();
348 return simgrid::simix::kernelImmediate([process] { return process->suspended; });
353 smx_actor_t process = SIMIX_process_self();
354 simgrid::simix::kernelImmediate([process] { SIMIX_process_kill(process, process); });
357 void onExit(int_f_pvoid_pvoid_t fun, void* data)
359 simcall_process_on_exit(SIMIX_process_self(), fun, data);
362 void migrate(Host* new_host)
364 smx_actor_t process = SIMIX_process_self();
365 simgrid::simix::kernelImmediate([process, new_host] { process->new_host = new_host; });