namespace context {
// BoostContextFactory
-
-BoostContextFactory::BoostContextFactory()
- : ContextFactory("BoostContextFactory"), parallel_(SIMIX_context_is_parallel())
-{
- BoostContext::setMaestro(nullptr);
- if (parallel_) {
-#if HAVE_THREAD_CONTEXTS
- ParallelBoostContext::initialize();
-#else
- xbt_die("No thread support for parallel context execution");
-#endif
- }
-}
-
-BoostContextFactory::~BoostContextFactory()
-{
-#if HAVE_THREAD_CONTEXTS
- if (parallel_)
- ParallelBoostContext::finalize();
-#endif
-}
-
smx_context_t BoostContextFactory::create_context(std::function<void()> code, void_pfn_smxprocess_t cleanup_func,
smx_actor_t process)
{
-#if HAVE_THREAD_CONTEXTS
- if (parallel_)
- return this->new_context<ParallelBoostContext>(std::move(code), cleanup_func, process);
-#endif
-
- return this->new_context<SerialBoostContext>(std::move(code), cleanup_func, process);
-}
-
-void BoostContextFactory::run_all()
-{
-#if HAVE_THREAD_CONTEXTS
if (parallel_)
- ParallelBoostContext::run_all();
- else
-#endif
- SerialBoostContext::run_all();
+ return this->new_context<ParallelBoostContext>(std::move(code), cleanup_func, process, this);
+ return this->new_context<BoostContext>(std::move(code), cleanup_func, process, this);
}
// BoostContext
-BoostContext* BoostContext::maestro_context_ = nullptr;
-
-BoostContext::BoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
- : Context(std::move(code), cleanup_func, process)
+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)
{
/* if the user provided a function for the process then use it, otherwise it is the context for maestro */
if (has_code()) {
- this->stack_ = SIMIX_context_stack_new();
/* 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
#if BOOST_VERSION < 105600
this->fc_ = new boost::context::fcontext_t();
#endif
- if (BoostContext::maestro_context_ == nullptr)
- BoostContext::maestro_context_ = this;
+ if (get_maestro() == nullptr)
+ set_maestro(this);
}
}
if (not this->stack_)
delete this->fc_;
#endif
- if (this == maestro_context_)
- maestro_context_ = nullptr;
- SIMIX_context_stack_delete(this->stack_);
+ if (this == get_maestro())
+ set_maestro(nullptr);
}
void BoostContext::wrapper(BoostContext::arg_type arg)
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 e;
+ throw;
}
context->Context::stop();
ASAN_ONLY(context->asan_stop_ = true);
context->suspend();
}
-inline void BoostContext::swap(BoostContext* from, BoostContext* to)
+void BoostContext::swap_into(SwappedContext* to_)
{
+ BoostContext* to = static_cast<BoostContext*>(to_);
#if BOOST_VERSION < 105600
- boost::context::jump_fcontext(from->fc_, to->fc_, reinterpret_cast<intptr_t>(to));
+ boost::context::jump_fcontext(this->fc_, to->fc_, reinterpret_cast<intptr_t>(to));
#elif BOOST_VERSION < 106100
- boost::context::jump_fcontext(&from->fc_, to->fc_, reinterpret_cast<intptr_t>(to));
+ boost::context::jump_fcontext(&this->fc_, to->fc_, reinterpret_cast<intptr_t>(to));
#else
- BoostContext* ctx[2] = {from, to};
+ BoostContext* ctx[2] = {this, to};
ASAN_ONLY(void* fake_stack = nullptr);
ASAN_ONLY(to->asan_ctx_ = from);
ASAN_START_SWITCH(from->asan_stop_ ? nullptr : &fake_stack, to->asan_stack_, to->asan_stack_size_);
#endif
}
-void BoostContext::stop()
-{
- Context::stop();
- throw StopRequest();
-}
-
-// SerialBoostContext
-
-unsigned long SerialBoostContext::process_index_;
-
-void SerialBoostContext::suspend()
-{
- /* determine the next context */
- SerialBoostContext* next_context;
- unsigned long int i = process_index_;
- process_index_++;
-
- if (i < simix_global->process_to_run.size()) {
- /* execute the next process */
- XBT_DEBUG("Run next process");
- next_context = static_cast<SerialBoostContext*>(simix_global->process_to_run[i]->context_);
- } else {
- /* all processes were run, return to maestro */
- XBT_DEBUG("No more process to run");
- next_context = static_cast<SerialBoostContext*>(BoostContext::getMaestro());
- }
- SIMIX_context_set_current(next_context);
- BoostContext::swap(this, next_context);
-}
-
-void SerialBoostContext::resume()
-{
- SIMIX_context_set_current(this);
- BoostContext::swap(BoostContext::getMaestro(), this);
-}
-
-void SerialBoostContext::run_all()
-{
- if (simix_global->process_to_run.empty())
- return;
- smx_actor_t first_process = simix_global->process_to_run.front();
- process_index_ = 1;
- /* execute the first process */
- static_cast<SerialBoostContext*>(first_process->context_)->resume();
-}
-
// ParallelBoostContext
-
-#if HAVE_THREAD_CONTEXTS
-
-simgrid::xbt::Parmap<smx_actor_t>* ParallelBoostContext::parmap_;
-std::atomic<uintptr_t> ParallelBoostContext::threads_working_;
-thread_local uintptr_t ParallelBoostContext::worker_id_;
-std::vector<ParallelBoostContext*> ParallelBoostContext::workers_context_;
-
-void ParallelBoostContext::initialize()
-{
- parmap_ = nullptr;
- workers_context_.clear();
- workers_context_.resize(SIMIX_context_get_nthreads(), nullptr);
-}
-
-void ParallelBoostContext::finalize()
-{
- delete parmap_;
- parmap_ = nullptr;
- workers_context_.clear();
-}
-
-void ParallelBoostContext::run_all()
-{
- threads_working_ = 0;
- if (parmap_ == nullptr)
- parmap_ = new simgrid::xbt::Parmap<smx_actor_t>(SIMIX_context_get_nthreads(), SIMIX_context_get_parallel_mode());
- parmap_->apply(
- [](smx_actor_t process) {
- ParallelBoostContext* context = static_cast<ParallelBoostContext*>(process->context_);
- context->resume();
- },
- simix_global->process_to_run);
-}
-
void ParallelBoostContext::suspend()
{
boost::optional<smx_actor_t> next_work = parmap_->next();
- ParallelBoostContext* next_context;
+ SwappedContext* next_context;
if (next_work) {
XBT_DEBUG("Run next process");
next_context = static_cast<ParallelBoostContext*>(next_work.get()->context_);
next_context = workers_context_[worker_id_];
}
- SIMIX_context_set_current(next_context);
- BoostContext::swap(this, next_context);
+ Context::set_current(next_context);
+ this->swap_into(next_context);
}
void ParallelBoostContext::resume()
{
worker_id_ = threads_working_.fetch_add(1, std::memory_order_relaxed);
- ParallelBoostContext* worker_context = static_cast<ParallelBoostContext*>(SIMIX_context_self());
- workers_context_[worker_id_] = worker_context;
+ SwappedContext* worker_context = static_cast<SwappedContext*>(self());
+ workers_context_[worker_id_] = worker_context;
- SIMIX_context_set_current(this);
- BoostContext::swap(worker_context, this);
+ Context::set_current(this);
+ worker_context->swap_into(this);
}
-#endif
XBT_PRIVATE ContextFactory* boost_factory()
{