- auto* engine = simgrid::kernel::EngineImpl::get_instance();
- xbt_assert(not engine->has_context_factory());
-
-#if HAVE_SMPI && (defined(__APPLE__) || defined(__NetBSD__))
- smpi_init_options_internal(false);
- std::string priv = simgrid::config::get_value<std::string>("smpi/privatization");
- if (context_factory_name == "thread" && (priv == "dlopen" || priv == "yes" || priv == "default" || priv == "1")) {
- XBT_WARN("dlopen+thread broken on Apple and BSD. Switching to raw contexts.");
- context_factory_name = "raw";
- }
-#endif
-
-#if HAVE_SMPI && defined(__FreeBSD__)
- smpi_init_options_internal(false);
- if (context_factory_name == "thread" && simgrid::config::get_value<std::string>("smpi/privatization") != "no") {
- XBT_WARN("mmap broken on FreeBSD, but dlopen+thread broken too. Switching to dlopen+raw contexts.");
- context_factory_name = "raw";
- }
-#endif
-
- /* select the context factory to use to create the contexts */
- if (simgrid::kernel::context::factory_initializer != nullptr) { // Give Java a chance to hijack the factory mechanism
- engine->set_context_factory(simgrid::kernel::context::factory_initializer());
- return;
- }
- /* use the factory specified by --cfg=contexts/factory:value */
- for (auto const& factory : context_factories)
- if (context_factory_name == factory.first) {
- engine->set_context_factory(factory.second());
- break;
- }
-
- if (not engine->has_context_factory()) {
- XBT_ERROR("Invalid context factory specified. Valid factories on this machine:");
-#if HAVE_RAW_CONTEXTS
- XBT_ERROR(" raw: high performance context factory implemented specifically for SimGrid");
-#else
- XBT_ERROR(" (raw contexts were disabled at compilation time on this machine -- check configure logs for details)");
-#endif
-#if HAVE_UCONTEXT_CONTEXTS
- XBT_ERROR(" ucontext: classical system V contexts (implemented with makecontext, swapcontext and friends)");
-#else
- XBT_ERROR(" (ucontext was disabled at compilation time on this machine -- check configure logs for details)");
-#endif
-#if HAVE_BOOST_CONTEXTS
- XBT_ERROR(" boost: this uses the boost libraries context implementation");
-#else
- XBT_ERROR(" (boost was disabled at compilation time on this machine -- check configure logs for details. Did you install the libboost-context-dev package?)");
-#endif
- XBT_ERROR(" thread: slow portability layer using pthreads as provided by gcc");
- xbt_die("Please use a valid factory.");
- }
-}
-
-/** @brief Returns whether some parallel threads are used for the user contexts. */
-int SIMIX_context_is_parallel() {
- return smx_parallel_contexts > 1;
-}
-
-/**
- * @brief Returns the number of parallel threads used for the user contexts.
- * @return the number of threads (1 means no parallelism)
- */
-int SIMIX_context_get_nthreads() {
- return smx_parallel_contexts;