namespace context {
// BoostContextFactory
-
-BoostContextFactory::BoostContextFactory()
- : ContextFactory("BoostContextFactory"), parallel_(SIMIX_context_is_parallel())
-{
- BoostContext::set_maestro(nullptr);
- if (parallel_)
- ParallelBoostContext::initialize();
-}
-
-BoostContextFactory::~BoostContextFactory()
-{
- if (parallel_)
- ParallelBoostContext::finalize();
-}
-
smx_context_t BoostContextFactory::create_context(std::function<void()> code, void_pfn_smxprocess_t cleanup_func,
smx_actor_t process)
{
- if (parallel_)
- return this->new_context<ParallelBoostContext>(std::move(code), cleanup_func, process);
- return this->new_context<BoostContext>(std::move(code), cleanup_func, process);
-}
-
-void BoostContextFactory::run_all()
-{
- if (parallel_)
- ParallelBoostContext::run_all();
- else
- SwappedContext::run_all();
+ return this->new_context<BoostContext>(std::move(code), cleanup_func, process, this);
}
// BoostContext
-BoostContext::BoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
- : SwappedContext(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 */
#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();
#endif
- if (get_maestro() == nullptr)
- set_maestro(this);
}
}
if (not this->stack_)
delete this->fc_;
#endif
- if (this == get_maestro())
- set_maestro(nullptr);
}
void BoostContext::wrapper(BoostContext::arg_type arg)
#endif
}
-void BoostContext::stop()
-{
- Context::stop();
- throw StopRequest();
-}
-
-// ParallelBoostContext
-
-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();
- SwappedContext* next_context;
- if (next_work) {
- XBT_DEBUG("Run next process");
- next_context = static_cast<ParallelBoostContext*>(next_work.get()->context_);
- } else {
- XBT_DEBUG("No more processes to run");
- next_context = workers_context_[worker_id_];
- }
-
- 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*>(self());
- workers_context_[worker_id_] = worker_context;
-
- Context::set_current(this);
- worker_context->swap_into(this);
-}
-
-
XBT_PRIVATE ContextFactory* boost_factory()
{
XBT_VERB("Using Boost contexts. Welcome to the 21th century.");