1 /* Copyright (c) 2010-2022. 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 "simgrid/s4u/Host.hpp"
7 #include "src/kernel/actor/ActorImpl.hpp"
8 #include "src/kernel/actor/SimcallObserver.hpp"
9 #include "src/kernel/context/Context.hpp"
10 #include "src/simix/popping_private.hpp"
14 #include "src/mc/mc_forward.hpp"
17 XBT_LOG_NEW_DEFAULT_CATEGORY(simix, "transmuting from user request into kernel handlers");
19 constexpr std::array<const char*, simgrid::simix::NUM_SIMCALLS> simcall_names{{
21 "Simcall::RUN_KERNEL",
22 "Simcall::RUN_BLOCKING",
26 * @brief (in kernel mode) unpack the simcall and activate the handler
29 void simgrid::kernel::actor::ActorImpl::simcall_handle(int times_considered)
31 XBT_DEBUG("Handling simcall %p: %s", &simcall_, SIMIX_simcall_name(simcall_));
32 if (simcall_.observer_ != nullptr)
33 simcall_.observer_->prepare(times_considered);
34 if (context_->wannadie())
36 switch (simcall_.call_) {
37 case simgrid::simix::Simcall::RUN_KERNEL:
42 case simgrid::simix::Simcall::RUN_BLOCKING:
46 case simgrid::simix::Simcall::NONE:
47 throw std::invalid_argument(
48 simgrid::xbt::string_printf("Asked to do the noop syscall on %s@%s", get_cname(), get_host()->get_cname()));
54 /** @brief returns a printable string representing a simcall */
55 const char* SIMIX_simcall_name(const s_smx_simcall& simcall)
57 if (simcall.observer_ != nullptr) {
59 if (mc_model_checker != nullptr) // Do not try to use the observer from the MCer
60 return "(remotely observed)";
63 static std::string name;
64 name = boost::core::demangle(typeid(*simcall.observer_).name());
65 const char* cname = name.c_str();
66 if (name.rfind("simgrid::kernel::", 0) == 0)
67 cname += 17; // strip prefix "simgrid::kernel::"
70 return simcall_names.at(static_cast<int>(simcall.call_));