Update copyright lines.

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

diff --git a/src/kernel/context/Context.cpp b/src/kernel/context/Context.cpp
index bbbf5eb..dbd49f7 100644 (file)
--- a/src/kernel/context/Context.cpp
+++ b/src/kernel/context/Context.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2007-2021. 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. */
@@ -11,8 +11,9 @@
 #include "src/simix/smx_private.hpp"
 #include "src/surf/surf_interface.hpp"
 
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_context);
+#include <array>
 
+XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_context);
 
 namespace simgrid {
 namespace kernel {
@@ -22,14 +23,28 @@ ContextFactoryInitializer factory_initializer = nullptr;
 
 ContextFactory::~ContextFactory() = default;
 
-static thread_local smx_context_t smx_current_context = nullptr;
+thread_local Context* Context::current_context_ = nullptr;
+
+#ifndef WIN32
+/* Install or disable alternate signal stack, for SIGSEGV handler. */
+int Context::install_sigsegv_stack(stack_t* old_stack, bool enable)
+{
+  static std::array<unsigned char, SIGSTKSZ> sigsegv_stack;
+  stack_t stack;
+  stack.ss_sp    = sigsegv_stack.data();
+  stack.ss_size  = sigsegv_stack.size();
+  stack.ss_flags = enable ? 0 : SS_DISABLE;
+  return sigaltstack(&stack, old_stack);
+}
+#endif
+
 Context* Context::self()
 {
-  return smx_current_context;
+  return current_context_;
 }
 void Context::set_current(Context* self)
 {
-  smx_current_context = self;
+  current_context_ = self;
 }
 
 void Context::declare_context(std::size_t size)
@@ -69,39 +84,7 @@ Context::~Context()
 
 void Context::stop()
 {
-  actor_->finished_ = true;
-
-  if (actor_->has_to_auto_restart() && not actor_->get_host()->is_on()) {
-    XBT_DEBUG("Insert host %s to watched_hosts because it's off and %s needs to restart",
-              actor_->get_host()->get_cname(), actor_->get_cname());
-    watched_hosts.insert(actor_->get_host()->get_name());
-  }
-
-  // Execute the termination callbacks
-  smx_process_exit_status_t exit_status = (actor_->context_->iwannadie) ? SMX_EXIT_FAILURE : SMX_EXIT_SUCCESS;
-  while (not actor_->on_exit.empty()) {
-    s_smx_process_exit_fun_t exit_fun = actor_->on_exit.back();
-    actor_->on_exit.pop_back();
-    (exit_fun.fun)(exit_status, exit_fun.arg);
-  }
-
-  /* cancel non-blocking activities */
-  for (auto activity : actor_->comms)
-    boost::static_pointer_cast<activity::CommImpl>(activity)->cancel();
-  actor_->comms.clear();
-
-  XBT_DEBUG("%s@%s(%ld) should not run anymore", actor_->get_cname(), actor_->iface()->get_host()->get_cname(),
-            actor_->get_pid());
-
   this->actor_->cleanup();
-
-  this->iwannadie = false; // don't let the simcall's yield() do a Context::stop(), because that's me
-  simgrid::simix::simcall([this] {
-    simgrid::s4u::Actor::on_destruction(actor_->iface());
-
-    actor_->cleanup();
-  });
-  this->iwannadie = true;
 }
 
 AttachContext::~AttachContext() = default;
@@ -109,9 +92,3 @@ AttachContext::~AttachContext() = default;
 } // namespace context
 } // namespace kernel
 } // namespace simgrid
-
-/** @brief Executes all the processes to run (in parallel if possible). */
-void SIMIX_context_runall()
-{
-  simix_global->context_factory->run_all();
-}