ContextRaw: add header file with class definitions.

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

diff --git a/src/kernel/context/ContextThread.cpp b/src/kernel/context/ContextThread.cpp
index 8b424d4..ebcdfbe 100644 (file)
--- a/src/kernel/context/ContextThread.cpp
+++ b/src/kernel/context/ContextThread.cpp
@@ -1,5 +1,4 @@
-/* Copyright (c) 2009-2015. The SimGrid Team.
- * All rights reserved.                                                     */
+/* Copyright (c) 2009-2017. 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. */
@@ -7,12 +6,12 @@
 #include <utility>
 #include <functional>
 
+#include "src/internal_config.h" /* loads context system definitions */
+#include "src/simix/smx_private.hpp"
+#include "src/xbt_modinter.h" /* prototype of os thread module's init/exit in XBT */
 #include "xbt/function_types.h"
-#include "src/simix/smx_private.h"
-#include "src/internal_config.h"           /* loads context system definitions */
 #include "xbt/swag.h"
 #include "xbt/xbt_os_thread.h"
-#include "src/xbt_modinter.h"       /* prototype of os thread module's init/exit in XBT */
 
 #include "src/kernel/context/ContextThread.hpp"
 
@@ -21,7 +20,8 @@ XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_context);
 static xbt_os_sem_t smx_ctx_thread_sem = nullptr;
 
 namespace simgrid {
-namespace simix {
+namespace kernel {
+namespace context {
 
 XBT_PRIVATE ContextFactory* thread_factory()
 {
@@ -49,18 +49,16 @@ ThreadContextFactory::~ThreadContextFactory()
 
 ThreadContext* ThreadContextFactory::create_context(
     std::function<void()> code,
-    void_pfn_smxprocess_t cleanup, smx_process_t process)
+    void_pfn_smxprocess_t cleanup, smx_actor_t process)
 {
-  return this->new_context<ThreadContext>(std::move(code), cleanup, process, !code);
+  return this->new_context<ThreadContext>(std::move(code), cleanup, process, not code);
 }
 
 void ThreadContextFactory::run_all()
 {
   if (smx_ctx_thread_sem == nullptr) {
     // Serial execution
-    smx_process_t process;
-    unsigned int cursor;
-    xbt_dynar_foreach(simix_global->process_to_run, cursor, process) {
+    for (smx_actor_t const& process : simix_global->process_to_run) {
       XBT_DEBUG("Handling %p",process);
       ThreadContext* context = static_cast<ThreadContext*>(process->context);
       xbt_os_sem_release(context->begin_);
@@ -68,12 +66,10 @@ void ThreadContextFactory::run_all()
     }
   } else {
     // Parallel execution
-    unsigned int index;
-    smx_process_t process;
-    xbt_dynar_foreach(simix_global->process_to_run, index, process)
+    for (smx_actor_t const& process : simix_global->process_to_run)
       xbt_os_sem_release(static_cast<ThreadContext*>(process->context)->begin_);
-    xbt_dynar_foreach(simix_global->process_to_run, index, process)
-       xbt_os_sem_acquire(static_cast<ThreadContext*>(process->context)->end_);
+    for (smx_actor_t const& process : simix_global->process_to_run)
+      xbt_os_sem_acquire(static_cast<ThreadContext*>(process->context)->end_);
   }
 }
 
@@ -82,22 +78,23 @@ ThreadContext* ThreadContextFactory::self()
   return static_cast<ThreadContext*>(xbt_os_thread_get_extra_data());
 }
 
-ThreadContext* ThreadContextFactory::attach(void_pfn_smxprocess_t cleanup_func, smx_process_t process)
+ThreadContext* ThreadContextFactory::attach(void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
 {
   return this->new_context<ThreadContext>(
     std::function<void()>(), cleanup_func, process, false);
 }
 
-ThreadContext* ThreadContextFactory::create_maestro(std::function<void()> code, smx_process_t process)
+ThreadContext* ThreadContextFactory::create_maestro(std::function<void()> code, smx_actor_t process)
 {
     return this->new_context<ThreadContext>(std::move(code), nullptr, process, true);
 }
 
 ThreadContext::ThreadContext(std::function<void()> code,
-    void_pfn_smxprocess_t cleanup, smx_process_t process, bool maestro)
+    void_pfn_smxprocess_t cleanup, smx_actor_t process, bool maestro)
   : AttachContext(std::move(code), cleanup, process)
 {
-  // We do not need the semaphores when maestro is in main, but we create them anyway for simplicity wrt the case where maestro is externalized
+  // We do not need the semaphores when maestro is in main,
+  // but creating them anyway simplifies things when maestro is externalized
   this->begin_ = xbt_os_sem_init(0);
   this->end_ = xbt_os_sem_init(0);
 
@@ -113,7 +110,7 @@ ThreadContext::ThreadContext(std::function<void()> code,
     * name, but now the name is stored at SIMIX level, so we pass a null  */
     this->thread_ =
       xbt_os_thread_create(nullptr,
-        maestro ? ThreadContext::maestro_wrapper : ThreadContext::wrapper,
+        maestro ? &ThreadContext::maestro_wrapper : &ThreadContext::wrapper,
         this, this);
     /* wait the starting of the newly created process */
     xbt_os_sem_acquire(this->end_);
@@ -154,9 +151,22 @@ void *ThreadContext::wrapper(void *param)
   if (smx_ctx_thread_sem)       /* parallel run */
     xbt_os_sem_acquire(smx_ctx_thread_sem);
 
-  (*context)();
-  context->stop();
+  try {
+    (*context)();
+    context->Context::stop();
+  } catch (StopRequest const&) {
+    XBT_DEBUG("Caught a StopRequest");
+  }
 
+  if (smx_ctx_thread_sem)
+    xbt_os_sem_release(smx_ctx_thread_sem);
+  // Signal to the maestro that it has finished:
+  xbt_os_sem_release(context->end_);
+
+#ifndef WIN32
+  stack.ss_flags = SS_DISABLE;
+  sigaltstack(&stack, nullptr);
+#endif
   return nullptr;
 }
 
@@ -182,6 +192,10 @@ void *ThreadContext::maestro_wrapper(void *param)
   // Tell main that we have finished:
   xbt_os_sem_release(context->end_);
 
+#ifndef WIN32
+  stack.ss_flags = SS_DISABLE;
+  sigaltstack(&stack, nullptr);
+#endif
   return nullptr;
 }
 
@@ -195,13 +209,7 @@ void ThreadContext::start()
 void ThreadContext::stop()
 {
   Context::stop();
-  if (smx_ctx_thread_sem)
-    xbt_os_sem_release(smx_ctx_thread_sem);
-
-  // Signal to the maestro that it has finished:
-  xbt_os_sem_release(this->end_);
-
-  xbt_os_thread_exit(nullptr);
+  throw StopRequest();
 }
 
 void ThreadContext::suspend()
@@ -234,5 +242,4 @@ void ThreadContext::attach_stop()
   xbt_os_thread_set_extra_data(nullptr);
 }
 
-}
-}
+}}} // namespace