-/* Copyright (c) 2015-2019. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2015-2023. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "ContextBoost.hpp"
-#include "context_private.hpp"
#include "simgrid/Exception.hpp"
-#include "src/simix/smx_private.hpp"
+#include "src/internal_config.h"
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_context);
+XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(ker_context);
-namespace simgrid {
-namespace kernel {
-namespace context {
+namespace simgrid::kernel::context {
// BoostContextFactory
-smx_context_t BoostContextFactory::create_context(std::function<void()> code, void_pfn_smxprocess_t cleanup_func,
- smx_actor_t process)
+BoostContext* BoostContextFactory::create_context(std::function<void()>&& code, actor::ActorImpl* actor)
{
- return this->new_context<BoostContext>(std::move(code), cleanup_func, process, this);
+ return this->new_context<BoostContext>(std::move(code), actor, this);
}
// BoostContext
-BoostContext::BoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process,
- SwappedContextFactory* factory)
- : SwappedContext(std::move(code), cleanup_func, process, factory)
+BoostContext::BoostContext(std::function<void()>&& code, actor::ActorImpl* actor, SwappedContextFactory* factory)
+ : SwappedContext(std::move(code), actor, factory)
{
-
+ XBT_VERB("Creating a context of stack %uMb", actor->get_stacksize() / 1024 / 1024);
/* if the user provided a function for the process then use it, otherwise it is the context for maestro */
if (has_code()) {
- /* We need to pass the bottom of the stack to make_fcontext,
- depending on the stack direction it may be the lower or higher address: */
-#if PTH_STACKGROWTH == -1
- void* stack = static_cast<char*>(this->stack_) + smx_context_usable_stack_size;
-#else
- void* stack = this->stack_;
-#endif
- ASAN_ONLY(this->asan_stack_ = stack);
#if BOOST_VERSION < 106100
- this->fc_ = boost::context::make_fcontext(stack, smx_context_usable_stack_size, BoostContext::wrapper);
+ this->fc_ = boost::context::make_fcontext(get_stack_bottom(), actor->get_stacksize(), BoostContext::wrapper);
#else
- this->fc_ = boost::context::detail::make_fcontext(stack, smx_context_usable_stack_size, BoostContext::wrapper);
-#endif
-
- } else {
- set_maestro(this); // save maestro for run_all()
-#if BOOST_VERSION < 105600
- this->fc_ = new boost::context::fcontext_t();
+ this->fc_ =
+ boost::context::detail::make_fcontext(get_stack_bottom(), actor->get_stacksize(), BoostContext::wrapper);
#endif
}
}
-BoostContext::~BoostContext()
-{
-#if BOOST_VERSION < 105600
- if (not this->stack_)
- delete this->fc_;
-#endif
-}
-
void BoostContext::wrapper(BoostContext::arg_type arg)
{
#if BOOST_VERSION < 106100
BoostContext* context = reinterpret_cast<BoostContext*>(arg);
#else
BoostContext* context = static_cast<BoostContext**>(arg.data)[1];
- ASAN_ONLY(xbt_assert(context->asan_ctx_ == static_cast<BoostContext**>(arg.data)[0]));
- ASAN_FINISH_SWITCH(nullptr, &context->asan_ctx_->asan_stack_, &context->asan_ctx_->asan_stack_size_);
+ context->verify_previous_context(static_cast<BoostContext**>(arg.data)[0]);
static_cast<BoostContext**>(arg.data)[0]->fc_ = arg.fctx;
#endif
- try {
- (*context)();
- } catch (StopRequest const&) {
- XBT_DEBUG("Caught a StopRequest");
- } catch (simgrid::Exception const& e) {
- XBT_INFO("Actor killed by an uncatched exception %s", simgrid::xbt::demangle(typeid(e).name()).get());
- throw;
- }
- context->Context::stop();
- ASAN_ONLY(context->asan_stop_ = true);
- context->suspend();
+ smx_ctx_wrapper(context);
}
-void BoostContext::swap_into(SwappedContext* to_)
+void BoostContext::swap_into_for_real(SwappedContext* to_)
{
- BoostContext* to = static_cast<BoostContext*>(to_);
-#if BOOST_VERSION < 105600
- boost::context::jump_fcontext(this->fc_, to->fc_, reinterpret_cast<intptr_t>(to));
-#elif BOOST_VERSION < 106100
+ auto* to = static_cast<BoostContext*>(to_);
+#if BOOST_VERSION < 106100
boost::context::jump_fcontext(&this->fc_, to->fc_, reinterpret_cast<intptr_t>(to));
#else
BoostContext* ctx[2] = {this, to};
- ASAN_ONLY(void* fake_stack = nullptr);
- ASAN_ONLY(to->asan_ctx_ = this);
- ASAN_START_SWITCH(this->asan_stop_ ? nullptr : &fake_stack, to->asan_stack_, to->asan_stack_size_);
boost::context::detail::transfer_t arg = boost::context::detail::jump_fcontext(to->fc_, ctx);
- ASAN_ONLY(xbt_assert(this->asan_ctx_ == static_cast<BoostContext**>(arg.data)[0]));
- ASAN_FINISH_SWITCH(fake_stack, &this->asan_ctx_->asan_stack_, &this->asan_ctx_->asan_stack_size_);
+ this->verify_previous_context(static_cast<BoostContext**>(arg.data)[0]);
static_cast<BoostContext**>(arg.data)[0]->fc_ = arg.fctx;
#endif
}
XBT_VERB("Using Boost contexts. Welcome to the 21th century.");
return new BoostContextFactory();
}
-}}} // namespace
+} // namespace simgrid::kernel::context
