1 /* Copyright (c) 2018. 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. */
6 #include "src/kernel/context/Context.hpp"
7 #include <simgrid/s4u/Actor.hpp>
8 #include <simgrid/s4u/Engine.hpp>
9 #include <simgrid/s4u/Host.hpp>
10 #include <simgrid/s4u/Mailbox.hpp>
12 #include <pybind11/pybind11.h>
13 #include <pybind11/stl.h>
19 namespace py = pybind11;
20 using simgrid::s4u::Actor;
21 using simgrid::s4u::ActorPtr;
22 using simgrid::s4u::Engine;
23 using simgrid::s4u::Host;
24 using simgrid::s4u::Mailbox;
26 XBT_LOG_NEW_DEFAULT_CATEGORY(python, "python");
28 PYBIND11_DECLARE_HOLDER_TYPE(T, boost::intrusive_ptr<T>);
32 static std::string get_simgrid_version()
34 int major, minor, patch;
35 sg_version_get(&major, &minor, &patch);
36 return simgrid::xbt::string_printf("%i.%i.%i", major, minor, patch);
39 static std::string simgrid_version = get_simgrid_version();
43 PYBIND11_MODULE(simgrid, m)
46 m.doc() = "SimGrid userspace API";
48 m.attr("simgrid_version") = simgrid_version;
50 /* this_actor namespace */
51 void (*sleep_for_fun)(double) = &simgrid::s4u::this_actor::sleep_for; // pick the right overload
52 void (*sleep_until_fun)(double) = &simgrid::s4u::this_actor::sleep_until;
54 py::module m2 = m.def_submodule("this_actor", "Bindings of the s4u::this_actor namespace.");
55 m2.def("info", [](char* s) { XBT_INFO("%s", s); }, "Display a logging message of default priority.");
56 m2.def("execute", py::overload_cast<double, double>(&simgrid::s4u::this_actor::execute),
57 "Block the current actor, computing the given amount of flops at the given priority, see :cpp:func:`void "
58 "simgrid::s4u::this_actor::execute(double, double)`",
59 py::arg("flops"), py::arg("priority") = 1);
60 m2.def("get_host", &simgrid::s4u::this_actor::get_host, "Retrives host on which the current actor is located");
61 m2.def("migrate", &simgrid::s4u::this_actor::migrate, "Moves the current actor to another host, see :cpp:func:`void simgrid::s4u::this_actor::migrate()`",
63 m2.def("sleep_for", sleep_for_fun,
64 "Block the actor sleeping for that amount of seconds, see :cpp:func:`void simgrid::s4u::this_actor::sleep_for`", py::arg("duration"));
65 m2.def("sleep_until", sleep_until_fun,
66 "Block the actor sleeping until the specified timestamp, see :cpp:func:`void simgrid::s4u::this_actor::sleep_until`", py::arg("duration"));
67 m2.def("suspend", &simgrid::s4u::this_actor::suspend, "Suspend the current actor, that is blocked until resume()ed by another actor. see :cpp:func:`void simgrid::s4u::this_actor::suspend`");
68 m2.def("yield_", &simgrid::s4u::this_actor::yield,
69 "Yield the actor, see :cpp:func:`void simgrid::s4u::this_actor::yield()`");
72 py::class_<Engine>(m, "Engine", "Simulation Engine, see :ref:`class s4u::Engine <API_s4u_Engine>`")
73 .def(py::init([](std::vector<std::string> args) -> simgrid::s4u::Engine* {
74 static char noarg[] = {'\0'};
75 int argc = args.size();
76 std::unique_ptr<char* []> argv(new char*[argc + 1]);
77 for (int i = 0; i != argc; ++i)
78 argv[i] = args[i].empty() ? noarg : &args[i].front();
80 // Currently this can be dangling, we should wrap this somehow.
81 return new simgrid::s4u::Engine(&argc, argv.get());
83 .def("get_all_hosts", &Engine::get_all_hosts, "Returns the list of all hosts found in the platform")
84 .def("get_clock", &Engine::get_clock, "Retrieve the simulation time")
85 .def("load_platform", &Engine::load_platform,
86 "Load a platform file describing the environment, see :cpp:func:`simgrid::s4u::Engine::load_platform()`")
87 .def("load_deployment", &Engine::load_deployment,
88 "Load a deployment file and launch the actors that it contains, see :cpp:func:`simgrid::s4u::Engine::load_deployment()`")
89 .def("run", &Engine::run, "Run the simulation")
90 .def("register_actor", [](Engine*, std::string name, py::object obj) {
91 simgrid::simix::register_function(name,
92 [obj](std::vector<std::string> args) -> simgrid::simix::ActorCode {
93 return [obj, args]() {
94 /* Convert the std::vector into a py::tuple */
95 py::tuple params(args.size()-1);
96 for (size_t i=1; i<args.size(); i++)
97 params[i-1] = py::cast(args[i]);
99 PyObject *result = PyObject_CallObject(obj.ptr(), params.ptr());
101 throw pybind11::error_already_set();
103 /* If I was passed a class, I just built an instance, so I need to call it now */
104 if (PyCallable_Check(result)) {
105 py::object obj2 = pybind11::reinterpret_steal<py::object>(pybind11::handle(static_cast<PyObject*>(result)));
110 }, "Registers the main function of an actor, see :cpp:func:`simgrid::s4u::Engine::register_function()`")
114 py::class_<simgrid::s4u::Host, std::unique_ptr<Host, py::nodelete>>(m, "Host", "Simulation Engine, see :ref:`class s4u::Host <API_s4u_Host>`")
115 .def("by_name", &Host::by_name, "Retrieves a host from its name, or die")
116 .def("current", &Host::current, "Retrieves the host on which the running actor is located, see :cpp:func:`simgrid::s4u::Host::current()`")
117 .def_property_readonly("name", [](Host* self) -> const std::string {
118 return std::string(self->get_name().c_str()); // Convert from xbt::string because of MC
119 }, "The name of this host")
120 .def_property_readonly("speed", &Host::get_speed,
121 "The peak computing speed in flops/s at the current pstate, taking the external load into account, see :cpp:func:`simgrid::s4u::Host::get_speed()`");
124 py::class_<simgrid::s4u::Mailbox, std::unique_ptr<Mailbox, py::nodelete>>(m, "Mailbox", "Mailbox, see :ref:`class s4u::Mailbox <API_s4u_Mailbox>`")
125 .def("by_name", &Mailbox::by_name, "Retrieve a Mailbox from its name, see :cpp:func:`simgrid::s4u::Mailbox::by_name()`")
126 .def_property_readonly("name", [](Mailbox* self) -> const std::string {
127 return std::string(self->get_name().c_str()); // Convert from xbt::string because of MC
128 }, "The name of that mailbox, see :cpp:func:`simgrid::s4u::Mailbox::get_name()`")
129 .def("put", [](Mailbox self, py::object data, int size) {
131 self.put(data.ptr(), size);
132 }, "Blocking data transmission, see :cpp:func:`void simgrid::s4u::Mailbox::put(void*, uint64_t)`")
133 .def("get", [](Mailbox self) -> py::object {
134 py::object data = pybind11::reinterpret_steal<py::object>(pybind11::handle(static_cast<PyObject*>(self.get())));
137 }, "Blocking data reception, see :cpp:func:`void* simgrid::s4u::Mailbox::get()`");
140 py::object pyStopRequestEx = py::register_exception<simgrid::kernel::context::Context::StopRequest>(m, "ActorKilled");
141 py::class_<simgrid::s4u::Actor, ActorPtr>(m, "Actor",
142 "An actor is an independent stream of execution in your distributed "
143 "application, see :ref:`class s4u::Actor <API_s4u_Actor>`")
146 [pyStopRequestEx](py::str name, py::object host, py::object fun, py::args args) {
148 return simgrid::s4u::Actor::create(name, host.cast<Host*>(), [fun, args, pyStopRequestEx]() {
152 } catch (py::error_already_set& ex) {
153 if (ex.matches(pyStopRequestEx)) {
154 /* The actor was killed.
155 * Stop here that StopRequest exception which was meant to free the RAII stuff on the stack */
162 "Create an actor from a function or an object, see :cpp:func:`simgrid::s4u::Actor::create()`")
163 .def_property("host", &Actor::get_host, &Actor::migrate, "The host on which this actor is located")
164 .def("daemonize", &Actor::daemonize,
165 "This actor will be automatically terminated when the last non-daemon actor finishes, see :cpp:func:`void "
166 "simgrid::s4u::Actor::daemonize()`")
167 .def("join", py::overload_cast<double>(&Actor::join),
168 "Wait for the actor to finish, see :cpp:func:`void simgrid::s4u::Actor::join(double)`", py::arg("timeout"))
169 .def("migrate", &Actor::migrate,
170 "Moves that actor to another host, see :cpp:func:`void simgrid::s4u::Actor::migrate()`", py::arg("dest"))
171 .def("self", &Actor::self, "Retrieves the current actor, see :cpp:func:`void simgrid::s4u::Actor::self()`")
172 .def("suspend", &Actor::suspend,
173 "Suspend that actor, that is blocked until resume()ed by another actor. See :cpp:func:`void "
174 "simgrid::s4u::Actor::suspend()`")
175 .def("resume", &Actor::resume,
176 "Resume that actor, that was previously suspend()ed. See :cpp:func:`void simgrid::s4u::Actor::suspend()`");