-/* Copyright (c) 2015-2017. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2015-2021. 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. */
-#ifndef SIMGRID_SIMIX_BOOST_CONTEXT_HPP
-#define SIMGRID_SIMIX_BOOST_CONTEXT_HPP
+#ifndef SIMGRID_KERNEL_CONTEXT_BOOST_CONTEXT_HPP
+#define SIMGRID_KERNEL_CONTEXT_BOOST_CONTEXT_HPP
-#include <boost/context/all.hpp>
+#include <boost/version.hpp>
+#if BOOST_VERSION < 106100
+#include <boost/context/fcontext.hpp>
+#else
+#include <boost/context/detail/fcontext.hpp>
+#endif
+#include <atomic>
#include <cstdint>
#include <functional>
#include <vector>
#include <simgrid/simix.hpp>
#include <xbt/parmap.hpp>
-#include <xbt/xbt_os_thread.h>
-#include "Context.hpp"
#include "src/internal_config.h"
-#include "src/simix/smx_private.hpp"
+#include "src/kernel/context/Context.hpp"
+#include "src/kernel/context/ContextSwapped.hpp"
namespace simgrid {
namespace kernel {
namespace context {
-class BoostContext;
-class SerialBoostContext;
-class ParallelBoostContext;
-class BoostContextFactory;
-
/** @brief Userspace context switching implementation based on Boost.Context */
-class BoostContext : public Context {
-protected: // static
- static simgrid::xbt::Parmap<smx_actor_t>* parmap_;
- static std::vector<BoostContext*> workers_context_;
- static uintptr_t threads_working_;
- static xbt_os_thread_key_t worker_id_key_;
- static unsigned long process_index_;
- static BoostContext* maestro_context_;
+class BoostContext : public SwappedContext {
+public:
+ BoostContext(std::function<void()>&& code, actor::ActorImpl* actor, SwappedContextFactory* factory);
-#if BOOST_VERSION < 105600
- boost::context::fcontext_t* fc_ = nullptr;
- typedef intptr_t arg_type;
-#elif BOOST_VERSION < 106100
+private:
+#if BOOST_VERSION < 106100
boost::context::fcontext_t fc_;
- typedef intptr_t arg_type;
+ using arg_type = intptr_t;
#else
boost::context::detail::fcontext_t fc_;
- typedef boost::context::detail::transfer_t arg_type;
+ using arg_type = boost::context::detail::transfer_t;
#endif
- static void wrapper(arg_type arg);
- static void swap(BoostContext* from, BoostContext* to);
-
-#if HAVE_SANITIZE_ADDRESS_FIBER_SUPPORT
- const void* asan_stack_ = nullptr;
- size_t asan_stack_size_ = 0;
- bool asan_stop_ = false;
-#endif
-
- void* stack_ = nullptr;
-public:
- BoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process);
- ~BoostContext() override;
- void stop() override;
- virtual void resume() = 0;
- friend BoostContextFactory;
-};
+ XBT_ATTRIB_NORETURN static void wrapper(arg_type arg);
-class SerialBoostContext : public BoostContext {
-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;
+ void swap_into_for_real(SwappedContext* to) override;
};
-#if HAVE_THREAD_CONTEXTS
-class ParallelBoostContext : public BoostContext {
+class BoostContextFactory : public SwappedContextFactory {
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;
+ BoostContext* create_context(std::function<void()>&& code, actor::ActorImpl* actor) override;
};
-#endif
-
-class BoostContextFactory : public ContextFactory {
-public:
- BoostContextFactory();
- ~BoostContextFactory() override;
- Context* create_context(std::function<void()> code, void_pfn_smxprocess_t, smx_actor_t process) override;
- void run_all() override;
-
-private:
- bool parallel_;
-};
-
-}}} // namespace
+} // namespace context
+} // namespace kernel
+} // namespace simgrid
#endif
