X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/f45abd9a448a9196144cb2aa845cb966b741d562..aaa065dfc773b29afeac0654f90beaf9ed050b50:/src/kernel/context/ContextRaw.cpp

diff --git a/src/kernel/context/ContextRaw.cpp b/src/kernel/context/ContextRaw.cpp
index 31b2aafe59..c7a0a1c5ff 100644
--- a/src/kernel/context/ContextRaw.cpp
+++ b/src/kernel/context/ContextRaw.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2009-2018. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2009-2019. 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. */
@@ -186,61 +186,26 @@ namespace context {
 
 // RawContextFactory
 
-RawContextFactory::RawContextFactory() : ContextFactory("RawContextFactory"), parallel_(SIMIX_context_is_parallel())
-{
-  RawContext::set_maestro(nullptr);
-  if (parallel_) {
-    // TODO: choose dynamically when SIMIX_context_get_parallel_threshold() > 1
-    ParallelRawContext::initialize();
-  }
-}
-
-RawContextFactory::~RawContextFactory()
-{
-  if (parallel_)
-    ParallelRawContext::finalize();
-}
-
 Context* RawContextFactory::create_context(std::function<void()> code, void_pfn_smxprocess_t cleanup_func,
                                            smx_actor_t process)
 {
-  if (parallel_)
-    return this->new_context<ParallelRawContext>(std::move(code), cleanup_func, process);
-  return this->new_context<RawContext>(std::move(code), cleanup_func, process);
-}
-
-void RawContextFactory::run_all()
-{
-  if (parallel_)
-    ParallelRawContext::run_all();
-  else
-    SwappedContext::run_all();
+  return this->new_context<RawContext>(std::move(code), cleanup_func, process, this);
 }
 
 // RawContext
 
-RawContext::RawContext(std::function<void()> code, void_pfn_smxprocess_t cleanup, smx_actor_t process)
-    : SwappedContext(std::move(code), cleanup, process)
+RawContext::RawContext(std::function<void()> code, void_pfn_smxprocess_t cleanup, smx_actor_t actor,
+                       SwappedContextFactory* factory)
+    : SwappedContext(std::move(code), cleanup, actor, factory)
 {
    if (has_code()) {
-#if PTH_STACKGROWTH == -1
-     ASAN_ONLY(this->asan_stack_ = static_cast<char*>(this->stack_) + smx_context_usable_stack_size);
-#else
-     ASAN_ONLY(this->asan_stack_ = this->stack_);
-#endif
-     this->stack_top_ = raw_makecontext(this->stack_, smx_context_usable_stack_size, RawContext::wrapper, this);
+     this->stack_top_ = raw_makecontext(get_stack(), smx_context_usable_stack_size, RawContext::wrapper, this);
    } else {
-     if (process != nullptr && get_maestro() == nullptr)
-       set_maestro(this);
-     if (MC_is_active()) {
-       XBT_ATTRIB_UNUSED RawContext* maestro = static_cast<RawContext*>(get_maestro());
-       MC_ignore_heap(&maestro->stack_top_, sizeof(maestro->stack_top_));
-     }
+     if (MC_is_active())
+       MC_ignore_heap(&stack_top_, sizeof(stack_top_));
    }
 }
 
-RawContext::~RawContext() = default;
-
 void RawContext::wrapper(void* arg)
 {
   RawContext* context = static_cast<RawContext*>(arg);
@@ -263,81 +228,10 @@ void RawContext::swap_into(SwappedContext* to_)
 {
   RawContext* to = static_cast<RawContext*>(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_);
+  ASAN_ONLY(to->asan_ctx_ = this);
+  ASAN_START_SWITCH(this->asan_stop_ ? nullptr : &fake_stack, to->asan_stack_, to->asan_stack_size_);
   raw_swapcontext(&this->stack_top_, to->stack_top_);
-  ASAN_FINISH_SWITCH(fake_stack, &from->asan_ctx_->asan_stack_, &from->asan_ctx_->asan_stack_size_);
-}
-
-void RawContext::stop()
-{
-  Context::stop();
-  throw StopRequest();
-}
-
-// ParallelRawContext
-
-simgrid::xbt::Parmap<smx_actor_t>* ParallelRawContext::parmap_;
-std::atomic<uintptr_t> ParallelRawContext::threads_working_; /* number of threads that have started their work */
-uintptr_t thread_local ParallelRawContext::worker_id_;       /* thread-specific storage for the thread id */
-std::vector<ParallelRawContext*> ParallelRawContext::workers_context_; /* space to save the worker context
-                                                                          in each thread */
-
-void ParallelRawContext::initialize()
-{
-  parmap_ = nullptr;
-  workers_context_.clear();
-  workers_context_.resize(SIMIX_context_get_nthreads(), nullptr);
-}
-
-void ParallelRawContext::finalize()
-{
-  delete parmap_;
-  parmap_ = nullptr;
-  workers_context_.clear();
-}
-
-void ParallelRawContext::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) {
-        ParallelRawContext* context = static_cast<ParallelRawContext*>(process->context_);
-        context->resume();
-      },
-      simix_global->process_to_run);
-}
-
-void ParallelRawContext::suspend()
-{
-  /* determine the next context */
-  boost::optional<smx_actor_t> next_work = parmap_->next();
-  ParallelRawContext* next_context;
-  if (next_work) {
-    /* there is a next process to resume */
-    XBT_DEBUG("Run next process");
-    next_context = static_cast<ParallelRawContext*>(next_work.get()->context_);
-  } else {
-    /* all processes were run, go to the barrier */
-    XBT_DEBUG("No more processes to run");
-    next_context = workers_context_[worker_id_];
-    XBT_DEBUG("Restoring worker stack %zu (working threads = %zu)", worker_id_, threads_working_.load());
-  }
-
-  Context::set_current(next_context);
-  this->swap_into(next_context);
-}
-
-void ParallelRawContext::resume()
-{
-  worker_id_                         = threads_working_.fetch_add(1, std::memory_order_relaxed);
-  ParallelRawContext* worker_context = static_cast<ParallelRawContext*>(self());
-  workers_context_[worker_id_]       = worker_context;
-  XBT_DEBUG("Saving worker stack %zu", worker_id_);
-  Context::set_current(this);
-  worker_context->swap_into(this);
+  ASAN_FINISH_SWITCH(fake_stack, &this->asan_ctx_->asan_stack_, &this->asan_ctx_->asan_stack_size_);
 }
 
 ContextFactory* raw_factory()