-/* Copyright (c) 2015-2017. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2015-2018. 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 <utility>
-#include <xbt/log.h>
+#include "src/simix/smx_private.hpp"
#if HAVE_SANITIZE_ADDRESS_FIBER_SUPPORT
#include <sanitizer/asan_interface.h>
// BoostContextFactory
BoostContextFactory::BoostContextFactory()
- : ContextFactory("BoostContextFactory")
+ : ContextFactory("BoostContextFactory"), parallel_(SIMIX_context_is_parallel())
{
- BoostContext::parallel_ = SIMIX_context_is_parallel();
- if (BoostContext::parallel_) {
+ BoostContext::setMaestro(nullptr);
+ if (parallel_) {
#if HAVE_THREAD_CONTEXTS
- BoostContext::parmap_ = nullptr;
- BoostContext::workers_context_.clear();
- BoostContext::workers_context_.resize(SIMIX_context_get_nthreads(), nullptr);
- BoostContext::maestro_context_ = nullptr;
- xbt_os_thread_key_create(&BoostContext::worker_id_key_);
+ ParallelBoostContext::initialize();
#else
xbt_die("No thread support for parallel context execution");
#endif
BoostContextFactory::~BoostContextFactory()
{
#if HAVE_THREAD_CONTEXTS
- delete BoostContext::parmap_;
- BoostContext::parmap_ = nullptr;
- BoostContext::workers_context_.clear();
+ if (parallel_)
+ ParallelBoostContext::finalize();
#endif
}
smx_actor_t process)
{
#if HAVE_THREAD_CONTEXTS
- if (BoostContext::parallel_)
+ if (parallel_)
return this->new_context<ParallelBoostContext>(std::move(code), cleanup_func, process);
#endif
void BoostContextFactory::run_all()
{
#if HAVE_THREAD_CONTEXTS
- if (BoostContext::parallel_) {
- BoostContext::threads_working_ = 0;
- if (not BoostContext::parmap_)
- BoostContext::parmap_ =
- new simgrid::xbt::Parmap<smx_actor_t>(SIMIX_context_get_nthreads(), SIMIX_context_get_parallel_mode());
- BoostContext::parmap_->apply(
- [](smx_actor_t process) {
- BoostContext* context = static_cast<BoostContext*>(process->context);
- return context->resume();
- },
- simix_global->process_to_run);
- return;
- }
+ if (parallel_)
+ ParallelBoostContext::run_all();
+ else
#endif
-
- if (simix_global->process_to_run.empty())
- return;
- smx_actor_t first_process = simix_global->process_to_run.front();
- BoostContext::process_index_ = 1;
- /* execute the first process */
- static_cast<BoostContext*>(first_process->context)->resume();
+ SerialBoostContext::run_all();
}
-
// BoostContext
-bool BoostContext::parallel_ = false;
-simgrid::xbt::Parmap<smx_actor_t>* BoostContext::parmap_ = nullptr;
-uintptr_t BoostContext::threads_working_ = 0;
-xbt_os_thread_key_t BoostContext::worker_id_key_;
-unsigned long BoostContext::process_index_ = 0;
BoostContext* BoostContext::maestro_context_ = nullptr;
-std::vector<BoostContext*> BoostContext::workers_context_;
BoostContext::BoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
: Context(std::move(code), cleanup_func, process)
// SerialBoostContext
+unsigned long SerialBoostContext::process_index_;
+
void SerialBoostContext::suspend()
{
/* determine the next context */
} else {
/* all processes were run, return to maestro */
XBT_DEBUG("No more process to run");
- next_context = static_cast<SerialBoostContext*>(maestro_context_);
+ next_context = static_cast<SerialBoostContext*>(BoostContext::getMaestro());
}
- SIMIX_context_set_current(static_cast<smx_context_t>(next_context));
+ SIMIX_context_set_current(next_context);
BoostContext::swap(this, next_context);
}
void SerialBoostContext::resume()
{
SIMIX_context_set_current(this);
- BoostContext::swap(maestro_context_, 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_;
+xbt_os_thread_key_t ParallelBoostContext::worker_id_key_;
+std::vector<ParallelBoostContext*> ParallelBoostContext::workers_context_;
+
+void ParallelBoostContext::initialize()
+{
+ parmap_ = nullptr;
+ workers_context_.clear();
+ workers_context_.resize(SIMIX_context_get_nthreads(), nullptr);
+ xbt_os_thread_key_create(&worker_id_key_);
+}
+
+void ParallelBoostContext::finalize()
+{
+ delete parmap_;
+ parmap_ = nullptr;
+ workers_context_.clear();
+ xbt_os_thread_key_destroy(worker_id_key_);
+}
+
+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();
} else {
XBT_DEBUG("No more processes to run");
uintptr_t worker_id = reinterpret_cast<uintptr_t>(xbt_os_thread_get_specific(worker_id_key_));
- next_context = static_cast<ParallelBoostContext*>(workers_context_[worker_id]);
+ next_context = workers_context_[worker_id];
}
- SIMIX_context_set_current(static_cast<smx_context_t>(next_context));
+ SIMIX_context_set_current(next_context);
BoostContext::swap(this, next_context);
}
void ParallelBoostContext::resume()
{
- uintptr_t worker_id = __sync_fetch_and_add(&threads_working_, 1);
+ uintptr_t worker_id = threads_working_.fetch_add(1, std::memory_order_relaxed);
xbt_os_thread_set_specific(worker_id_key_, reinterpret_cast<void*>(worker_id));
ParallelBoostContext* worker_context = static_cast<ParallelBoostContext*>(SIMIX_context_self());
- workers_context_[worker_id] = worker_context;
+ workers_context_[worker_id] = worker_context;
SIMIX_context_set_current(this);
BoostContext::swap(worker_context, this);
