+ /* Class Mailbox */
+ py::class_<simgrid::s4u::Mailbox, std::unique_ptr<Mailbox, py::nodelete>>(
+ m, "Mailbox", "Mailbox. See the C++ documentation for details.")
+ .def(
+ "__str__", [](const Mailbox* self) { return "Mailbox(" + self->get_name() + ")"; },
+ "Textual representation of the Mailbox`")
+ .def_static("by_name", &Mailbox::by_name, py::call_guard<py::gil_scoped_release>(), py::arg("name"),
+ "Retrieve a Mailbox from its name")
+ .def_property_readonly("name", &Mailbox::get_name, "The name of that mailbox (read-only property).")
+ .def_property_readonly("ready", &Mailbox::ready,
+ "Check if there is a communication ready to be consumed from a mailbox.")
+ .def(
+ "put",
+ [](Mailbox* self, py::object data, uint64_t size, double timeout) {
+ auto* data_ptr = data.inc_ref().ptr();
+ const py::gil_scoped_release gil_release;
+ self->put(data_ptr, size, timeout);
+ },
+ "Blocking data transmission with a timeout")
+ .def(
+ "put",
+ [](Mailbox* self, py::object data, uint64_t size) {
+ auto* data_ptr = data.inc_ref().ptr();
+ const py::gil_scoped_release gil_release;
+ self->put(data_ptr, size);
+ },
+ "Blocking data transmission")
+ .def(
+ "put_async",
+ [](Mailbox* self, py::object data, uint64_t size) {
+ auto* data_ptr = data.inc_ref().ptr();
+ const py::gil_scoped_release gil_release;
+ return self->put_async(data_ptr, size);
+ },
+ "Non-blocking data transmission")
+ .def(
+ "put_init",
+ [](Mailbox* self, py::object data, uint64_t size) {
+ auto* data_ptr = data.inc_ref().ptr();
+ const py::gil_scoped_release gil_release;
+ return self->put_init(data_ptr, size);
+ },
+ "Creates (but don’t start) a data transmission to that mailbox.")
+ .def(
+ "get", [](Mailbox* self) { return py::reinterpret_steal<py::object>(self->get<PyObject>()); },
+ py::call_guard<py::gil_scoped_release>(), "Blocking data reception")
+ .def(
+ "get_async",
+ [](Mailbox* self) -> std::tuple<CommPtr, PyGetAsync> {
+ PyGetAsync wrap;
+ auto comm = self->get_async(wrap.get());
+ return std::make_tuple(std::move(comm), std::move(wrap));
+ },
+ py::call_guard<py::gil_scoped_release>(),
+ "Non-blocking data reception. Use data.get() to get the python object after the communication has finished")
+ .def("set_receiver", &Mailbox::set_receiver, py::call_guard<py::gil_scoped_release>(),
+ "Sets the actor as permanent receiver");
+
+ /* Class PyGetAsync */
+ py::class_<PyGetAsync>(m, "PyGetAsync", "Wrapper for async get communications")
+ .def(py::init<>())
+ .def(
+ "get", [](const PyGetAsync* self) { return py::reinterpret_steal<py::object>(*(self->get())); },
+ "Get python object after async communication in receiver side");
+
+ /* Class Comm */
+ py::class_<Comm, CommPtr>(m, "Comm", "Communication. See the C++ documentation for details.")
+ .def_property_readonly("dst_data_size", &Comm::get_dst_data_size,
+ py::call_guard<py::gil_scoped_release>(),
+ "Retrieve the size of the received data.")
+ .def_property_readonly("mailbox", &Comm::get_mailbox,
+ py::call_guard<py::gil_scoped_release>(),
+ "Retrieve the mailbox on which this comm acts.")
+ .def_property_readonly("sender", &Comm::get_sender,
+ py::call_guard<py::gil_scoped_release>())
+ .def_property_readonly("state_str", &Comm::get_state_str,
+ py::call_guard<py::gil_scoped_release>(),
+ "Retrieve the Comm state as string")
+ .def_property_readonly("remaining", &Comm::get_remaining,
+ py::call_guard<py::gil_scoped_release>(),
+ "Remaining amount of work that this Comm entails")
+ .def_property_readonly("start_time", &Comm::get_start_time,
+ py::call_guard<py::gil_scoped_release>(),
+ "Time at which this Comm started")
+ .def_property_readonly("finish_time", &Comm::get_finish_time,
+ py::call_guard<py::gil_scoped_release>(),
+ "Time at which this Comm finished")
+ .def("set_payload_size", &Comm::set_payload_size, py::call_guard<py::gil_scoped_release>(),
+ py::arg("bytes"),
+ "Specify the amount of bytes which exchange should be simulated.")
+ .def("set_rate", &Comm::set_rate, py::call_guard<py::gil_scoped_release>(),
+ py::arg("rate"),
+ "Sets the maximal communication rate (in byte/sec). Must be done before start")
+ .def("cancel", &Comm::cancel, py::call_guard<py::gil_scoped_release>(),
+ py::return_value_policy::reference_internal, "Cancel the activity.")
+ .def("start", &Comm::start, py::call_guard<py::gil_scoped_release>(), py::return_value_policy::reference_internal,
+ "Starts a previously created activity. This function is optional: you can call wait() even if you didn't "
+ "call start()")
+ .def("suspend", &Comm::suspend, py::call_guard<py::gil_scoped_release>(),
+ py::return_value_policy::reference_internal, "Suspend the activity.")
+ .def("resume", &Comm::resume, py::call_guard<py::gil_scoped_release>(),
+ py::return_value_policy::reference_internal, "Resume the activity.")
+ .def("test", &Comm::test, py::call_guard<py::gil_scoped_release>(),
+ "Test whether the communication is terminated.")
+ .def("wait", &Comm::wait, py::call_guard<py::gil_scoped_release>(),
+ "Block until the completion of that communication.")
+ .def("wait_for", &Comm::wait_for, py::call_guard<py::gil_scoped_release>(),
+ py::arg("timeout"),
+ "Block until the completion of that communication, or raises TimeoutException after the specified timeout.")
+ .def("wait_until", &Comm::wait_until, py::call_guard<py::gil_scoped_release>(),
+ py::arg("time_limit"),
+ "Block until the completion of that communication, or raises TimeoutException after the specified time.")
+ .def("detach", py::overload_cast<>(&Comm::detach), py::return_value_policy::reference_internal,
+ py::call_guard<py::gil_scoped_release>(),
+ "Start the comm, and ignore its result. It can be completely forgotten after that.")
+ .def_static("sendto", &Comm::sendto, py::call_guard<py::gil_scoped_release>(),
+ py::arg("from"), py::arg("to"), py::arg("simulated_size_in_bytes"),
+ "Do a blocking communication between two arbitrary hosts.")
+ .def_static("sendto_init", py::overload_cast<Host*, Host*>(&Comm::sendto_init),
+ py::call_guard<py::gil_scoped_release>(),
+ py::arg("from"), py::arg("to"),
+ "Creates a communication between the two given hosts, bypassing the mailbox mechanism.")
+ .def_static("sendto_async", &Comm::sendto_async, py::call_guard<py::gil_scoped_release>(),
+ py::arg("from"), py::arg("to"), py::arg("simulated_size_in_bytes"),
+ "Do a blocking communication between two arbitrary hosts.\n\nThis initializes a communication that "
+ "completely bypass the mailbox and actors mechanism. There is really no limit on the hosts involved. "
+ "In particular, the actor does not have to be on one of the involved hosts.")
+ .def_static("test_any", &Comm::test_any,
+ py::call_guard<py::gil_scoped_release>(),
+ py::arg("comms"),
+ "take a vector s4u::CommPtr and return the rank of the first finished one (or -1 if none is done)")
+ .def_static("wait_all", &Comm::wait_all, py::call_guard<py::gil_scoped_release>(),
+ py::arg("comms"),
+ "Block until the completion of all communications in the list.")
+ .def_static("wait_all_for", &Comm::wait_all_for, py::call_guard<py::gil_scoped_release>(),
+ py::arg("comms"), py::arg("timeout"),
+ "Block until the completion of all communications in the list, or raises TimeoutException after "
+ "the specified timeout.")
+ .def_static("wait_any", &Comm::wait_any,
+ py::call_guard<py::gil_scoped_release>(),
+ py::arg("comms"),
+ "Block until the completion of any communication in the list and return the index of the "
+ "terminated one.")
+ .def_static("wait_any_for", &Comm::wait_any_for,
+ py::call_guard<py::gil_scoped_release>(),
+ py::arg("comms"), py::arg("timeout"),
+ "Block until the completion of any communication in the list and return the index of the terminated "
+ "one, or -1 if a timeout occurred.");
+
+ /* Class Io */
+ py::class_<simgrid::s4u::Io, simgrid::s4u::IoPtr>(m, "Io", "I/O activities. See the C++ documentation for details.")
+ .def("test", &simgrid::s4u::Io::test, py::call_guard<py::gil_scoped_release>(),
+ "Test whether the I/O is terminated.")
+ .def("wait", &simgrid::s4u::Io::wait, py::call_guard<py::gil_scoped_release>(),
+ "Block until the completion of that I/O operation")
+ .def_static(
+ "wait_any_for", &simgrid::s4u::Io::wait_any_for, py::call_guard<py::gil_scoped_release>(),
+ "Block until the completion of any I/O in the list (or timeout) and return the index of the terminated one.")
+ .def_static("wait_any", &simgrid::s4u::Io::wait_any, py::call_guard<py::gil_scoped_release>(),
+ "Block until the completion of any I/O in the list and return the index of the terminated one.");
+
+ /* Class Exec */
+ py::class_<simgrid::s4u::Exec, simgrid::s4u::ExecPtr>(m, "Exec", "Execution. See the C++ documentation for details.")
+ .def_property_readonly("remaining", &simgrid::s4u::Exec::get_remaining, py::call_guard<py::gil_scoped_release>(),
+ "Amount of flops that remain to be computed until completion (read-only property).")
+ .def_property_readonly("remaining_ratio", &simgrid::s4u::Exec::get_remaining_ratio,
+ py::call_guard<py::gil_scoped_release>(),
+ "Amount of work remaining until completion from 0 (completely done) to 1 (nothing done "
+ "yet) (read-only property).")
+ .def_property("host", &simgrid::s4u::Exec::get_host, &simgrid::s4u::Exec::set_host,
+ "Host on which this execution runs. Only the first host is returned for parallel executions. "
+ "Changing this value migrates the execution.")
+ .def("test", &simgrid::s4u::Exec::test, py::call_guard<py::gil_scoped_release>(),
+ "Test whether the execution is terminated.")
+ .def("cancel", &simgrid::s4u::Exec::cancel, py::call_guard<py::gil_scoped_release>(), "Cancel that execution.")
+ .def("start", &simgrid::s4u::Exec::start, py::call_guard<py::gil_scoped_release>(), "Start that execution.")
+ .def("suspend", &simgrid::s4u::Exec::suspend, py::call_guard<py::gil_scoped_release>(), "Suspend that execution.")
+ .def("wait", &simgrid::s4u::Exec::wait, py::call_guard<py::gil_scoped_release>(),
+ "Block until the completion of that execution.")
+ .def("wait_for", &simgrid::s4u::Exec::wait_for, py::call_guard<py::gil_scoped_release>(),
+ py::arg("timeout"),
+ "Block until the completion of that activity, or raises TimeoutException after the specified timeout.");
+
+ /* Class Semaphore */
+ py::class_<Semaphore, SemaphorePtr>(m, "Semaphore",
+ "A classical semaphore, but blocking in the simulation world. See the C++ "
+ "documentation for details.")
+ .def(py::init<>(&Semaphore::create), py::call_guard<py::gil_scoped_release>(), py::arg("capacity"),
+ "Semaphore constructor.")
+ .def("acquire", &Semaphore::acquire, py::call_guard<py::gil_scoped_release>(),
+ "Acquire on the semaphore object with no timeout. Blocks until the semaphore is acquired.")
+ .def("acquire_timeout", &Semaphore::acquire_timeout, py::call_guard<py::gil_scoped_release>(), py::arg("timeout"),
+ "Acquire on the semaphore object with no timeout. Blocks until the semaphore is acquired or return "
+ "true if it has not been acquired after the specified timeout.")
+ .def("release", &Semaphore::release, py::call_guard<py::gil_scoped_release>(),
+ "Release the semaphore.")
+ .def_property_readonly("capacity", &Semaphore::get_capacity, py::call_guard<py::gil_scoped_release>(),
+ "Get the semaphore capacity.")
+ .def_property_readonly("would_block", &Semaphore::would_block, py::call_guard<py::gil_scoped_release>(),
+ "Check whether trying to acquire the semaphore would block (in other word, checks whether "
+ "this semaphore has capacity).")
+ // Allow semaphores to be automatically acquired/released with a context manager: `with semaphore: ...`
+ .def("__enter__", &Semaphore::acquire, py::call_guard<py::gil_scoped_release>())
+ .def("__exit__",
+ [](Semaphore* self, const py::object&, const py::object&, const py::object&) { self->release(); });
+
+ /* Class Mutex */
+ py::class_<Mutex, MutexPtr>(m, "Mutex",
+ "A classical mutex, but blocking in the simulation world."
+ "See the C++ documentation for details.")
+ .def(py::init<>(&Mutex::create), py::call_guard<py::gil_scoped_release>(), "Mutex constructor.")
+ .def("lock", &Mutex::lock, py::call_guard<py::gil_scoped_release>(), "Block until the mutex is acquired.")
+ .def("try_lock", &Mutex::try_lock, py::call_guard<py::gil_scoped_release>(),
+ "Try to acquire the mutex. Return true if the mutex was acquired, false otherwise.")
+ .def("unlock", &Mutex::unlock, py::call_guard<py::gil_scoped_release>(), "Release the mutex.")
+ // Allow mutexes to be automatically acquired/released with a context manager: `with mutex: ...`
+ .def("__enter__", &Mutex::lock, py::call_guard<py::gil_scoped_release>())
+ .def("__exit__", [](Mutex* self, const py::object&, const py::object&, const py::object&) { self->unlock(); },
+ py::call_guard<py::gil_scoped_release>());
+
+ /* Class Barrier */
+ py::class_<Barrier, BarrierPtr>(m, "Barrier",
+ "A classical barrier, but blocking in the simulation world.")
+ .def(py::init<>(&Barrier::create), py::call_guard<py::gil_scoped_release>(), py::arg("expected_actors"),
+ "Barrier constructor.")
+ .def("wait", &Barrier::wait, py::call_guard<py::gil_scoped_release>(),
+ "Blocks into the barrier. Every waiting actors will be unlocked once the expected amount of actors reaches "
+ "the barrier.");
+
+ /* Class Actor */
+ py::class_<simgrid::s4u::Actor, ActorPtr>(m, "Actor",
+ "An actor is an independent stream of execution in your distributed "
+ "application. See the C++ documentation for details.")
+ .def(
+ "create",
+ [](const std::string& name, Host* h, py::object fun, py::args args) {
+ fun.inc_ref(); // keep alive after return
+ args.inc_ref(); // keep alive after return
+ const py::gil_scoped_release gil_release;
+ return simgrid::s4u::Actor::create(name, h, [fun_p = fun.ptr(), args_p = args.ptr()]() {
+ const py::gil_scoped_acquire py_context;
+ try {
+ const auto fun = py::reinterpret_borrow<py::object>(fun_p);
+ const auto args = py::reinterpret_borrow<py::args>(args_p);
+ fun(*args);
+ } catch (const py::error_already_set& ex) {
+ if (ex.matches(pyForcefulKillEx)) {
+ XBT_VERB("Actor killed");
+ simgrid::ForcefulKillException::do_throw(); // Forward that ForcefulKill exception
+ }
+ throw;
+ }
+ });
+ },
+ "Create an actor from a function or an object. See the :ref:`example <s4u_ex_actors_create>`.")
+ .def_property(
+ "host", &Actor::get_host, py::cpp_function(&Actor::set_host, py::call_guard<py::gil_scoped_release>()),
+ "The host on which this actor is located. Changing this value migrates the actor.\n\n"
+ "If the actor is currently blocked on an execution activity, the activity is also migrated to the new host. "
+ "If it’s blocked on another kind of activity, an error is raised as the mandated code is not written yet. "
+ "Please report that bug if you need it.\n\n"
+ "Asynchronous activities started by the actor are not migrated automatically, so you have to take care of "
+ "this yourself (only you knows which ones should be migrated). ")
+ .def_property_readonly("name", &Actor::get_cname, "The name of this actor (read-only property).")
+ .def_property_readonly("pid", &Actor::get_pid, "The PID (unique identifier) of this actor (read-only property).")
+ .def_property_readonly("ppid", &Actor::get_ppid,
+ "The PID (unique identifier) of the actor that created this one (read-only property).")
+ .def_static("by_pid", &Actor::by_pid, py::arg("pid"), "Retrieve an actor by its PID")
+ .def("set_auto_restart", &Actor::set_auto_restart, py::call_guard<py::gil_scoped_release>(),
+ "Specify whether the actor shall restart when its host reboots.")
+ .def("daemonize", &Actor::daemonize, py::call_guard<py::gil_scoped_release>(),
+ "This actor will be automatically terminated when the last non-daemon actor finishes (more info in the C++ "
+ "documentation).")
+ .def("is_daemon", &Actor::is_daemon,
+ "Returns True if that actor is a daemon and will be terminated automatically when the last non-daemon actor "
+ "terminates.")
+ .def("join", py::overload_cast<double>(&Actor::join, py::const_), py::call_guard<py::gil_scoped_release>(),
+ "Wait for the actor to finish (more info in the C++ documentation).", py::arg("timeout") = -1)
+ .def("kill", &Actor::kill, py::call_guard<py::gil_scoped_release>(), "Kill that actor")
+ .def("self", &Actor::self, "Retrieves the current actor.")
+ .def("is_suspended", &Actor::is_suspended, "Returns True if that actor is currently suspended.")
+ .def("suspend", &Actor::suspend, py::call_guard<py::gil_scoped_release>(),
+ "Suspend that actor, that is blocked until resume()ed by another actor.")
+ .def("resume", &Actor::resume, py::call_guard<py::gil_scoped_release>(),
+ "Resume that actor, that was previously suspend()ed.")
+ .def_static("kill_all", &Actor::kill_all, py::call_guard<py::gil_scoped_release>(),
+ "Kill all actors but the caller.");