cosmetics

[simgrid.git] / src / kernel / context / Context.cpp

diff --git a/src/kernel/context/Context.cpp b/src/kernel/context/Context.cpp
index dfa1791..7e3ce08 100644 (file)
--- a/src/kernel/context/Context.cpp
+++ b/src/kernel/context/Context.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2007-2018. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2007-2019. 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. */
@@ -8,6 +8,8 @@
 #include "src/kernel/context/Context.hpp"
 #include "src/simix/smx_private.hpp"
 
+XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_context);
+
 /**
  * @brief creates a new context for a user level process
  * @param code a main function
@@ -19,7 +21,6 @@ smx_context_t SIMIX_context_new(
   void_pfn_smxprocess_t cleanup_func,
   smx_actor_t simix_process)
 {
-  xbt_assert(simix_global, "simix is not initialized, please call MSG_init first");
   return simix_global->context_factory->create_context(
     std::move(code), cleanup_func, simix_process);
 }
@@ -32,17 +33,22 @@ ContextFactoryInitializer factory_initializer = nullptr;
 
 ContextFactory::~ContextFactory() = default;
 
-Context* ContextFactory::self()
+static thread_local smx_context_t smx_current_context = nullptr;
+Context* Context::self()
+{
+  return smx_current_context;
+}
+void Context::set_current(Context* self)
 {
-  return SIMIX_context_get_current();
+  smx_current_context = self;
 }
 
-void ContextFactory::declare_context(void* context, std::size_t size)
+void Context::declare_context(std::size_t size)
 {
 #if SIMGRID_HAVE_MC
   /* Store the address of the stack in heap to compare it apart of heap comparison */
   if(MC_is_active())
-    MC_ignore_heap(context, size);
+    MC_ignore_heap(this, size);
 #endif
 }
 
@@ -58,29 +64,29 @@ Context* ContextFactory::create_maestro(std::function<void()> code, smx_actor_t
     "Try using --cfg=contexts/factory:thread instead.\n");
 }
 
-Context::Context(std::function<void()> code,
-    void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
-  : code_(std::move(code)), process_(process), iwannadie(false)
+Context::Context(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t actor)
+    : code_(std::move(code)), cleanup_func_(cleanup_func), actor_(actor)
 {
-  /* If the user provided a function for the process then use it.
-     Otherwise, it is the context for maestro and we should set it as the
-     current context */
-  if (has_code())
-    this->cleanup_func_ = cleanup_func;
-  else
-    SIMIX_context_set_current(this);
+  /* If no function was provided, this is the context for maestro
+   * and we should set it as the current context */
+  if (not has_code())
+    set_current(this);
 }
 
-Context::~Context() = default;
+Context::~Context()
+{
+  if (self() == this)
+    set_current(nullptr);
+}
 
 void Context::stop()
 {
   if (this->cleanup_func_)
-    this->cleanup_func_(this->process_);
-  this->process_->suspended_ = 0;
+    this->cleanup_func_(this->actor_);
+  this->actor_->suspended_ = 0;
 
   this->iwannadie = false;
-  simgrid::simix::simcall([this] { SIMIX_process_cleanup(this->process_); });
+  simgrid::simix::simcall([this] { SIMIX_process_cleanup(this->actor_); });
   this->iwannadie = true;
 }
 
@@ -93,13 +99,3 @@ void SIMIX_context_runall()
 {
   simix_global->context_factory->run_all();
 }
-
-/** @brief returns the current running context */
-smx_context_t SIMIX_context_self()
-{
-  if (simix_global && simix_global->context_factory)
-    return simix_global->context_factory->self();
-  else
-    return nullptr;
-}
-