-/* Copyright (c) 2015-2018. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2015-2019. 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. */
#include <simgrid/simix.hpp>
#include <xbt/parmap.hpp>
-#include <xbt/xbt_os_thread.h>
-#include "Context.hpp"
#include "src/internal_config.h"
+#include "src/kernel/context/Context.hpp"
+#include "src/kernel/context/ContextSwapped.hpp"
namespace simgrid {
namespace kernel {
namespace context {
/** @brief Userspace context switching implementation based on Boost.Context */
-class BoostContext : public Context {
+class BoostContext : public SwappedContext {
public:
- BoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process);
+ BoostContext(std::function<void()>&& code, actor::ActorImpl* actor, SwappedContextFactory* factory);
~BoostContext() override;
- void stop() override;
- virtual void resume() = 0;
- static void swap(BoostContext* from, BoostContext* to);
- static BoostContext* get_maestro() { return maestro_context_; }
- static void set_maestro(BoostContext* maestro) { maestro_context_ = maestro; }
+ void swap_into(SwappedContext* to) override;
private:
- static BoostContext* maestro_context_;
- void* stack_ = nullptr;
-
#if BOOST_VERSION < 105600
boost::context::fcontext_t* fc_ = nullptr;
typedef intptr_t arg_type;
boost::context::detail::fcontext_t fc_;
typedef boost::context::detail::transfer_t arg_type;
#endif
-#if HAVE_SANITIZER_ADDRESS_FIBER_SUPPORT
- const void* asan_stack_ = nullptr;
- size_t asan_stack_size_ = 0;
- BoostContext* asan_ctx_ = nullptr;
- bool asan_stop_ = false;
-#endif
static void wrapper(arg_type arg);
};
-class SerialBoostContext : public BoostContext {
+class BoostContextFactory : public SwappedContextFactory {
public:
- SerialBoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
- : BoostContext(std::move(code), cleanup_func, process)
- {
- }
- void suspend() override;
- void resume() override;
-
- static void run_all();
-
-private:
- static unsigned long process_index_;
-};
-
-#if HAVE_THREAD_CONTEXTS
-class ParallelBoostContext : public BoostContext {
-public:
- ParallelBoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
- : BoostContext(std::move(code), cleanup_func, process)
- {
- }
- void suspend() override;
- void resume() override;
-
- static void initialize();
- static void finalize();
- static void run_all();
-
-private:
- static simgrid::xbt::Parmap<smx_actor_t>* parmap_;
- static std::vector<ParallelBoostContext*> workers_context_;
- static std::atomic<uintptr_t> threads_working_;
- static thread_local uintptr_t worker_id_;
-};
-#endif
-
-class BoostContextFactory : public ContextFactory {
-public:
- BoostContextFactory();
- ~BoostContextFactory() override;
- Context* create_context(std::function<void()> code, void_pfn_smxprocess_t cleanup, smx_actor_t process) override;
- void run_all() override;
-
-private:
- bool parallel_;
+ BoostContext* create_context(std::function<void()>&& code, actor::ActorImpl* actor) override;
};
-}}} // namespace
+} // namespace context
+} // namespace kernel
+} // namespace simgrid
#endif