1 /* Copyright (c) 2015-2017. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #ifndef SIMGRID_SIMIX_BOOST_CONTEXT_HPP
7 #define SIMGRID_SIMIX_BOOST_CONTEXT_HPP
9 #include <boost/context/all.hpp>
15 #include <simgrid/simix.hpp>
16 #include <xbt/parmap.hpp>
17 #include <xbt/xbt_os_thread.h>
19 #include "Context.hpp"
20 #include "src/internal_config.h"
21 #include "src/simix/smx_private.hpp"
28 class SerialBoostContext;
29 class ParallelBoostContext;
30 class BoostContextFactory;
32 /** @brief Userspace context switching implementation based on Boost.Context */
33 class BoostContext : public Context {
35 static simgrid::xbt::Parmap<smx_actor_t>* parmap_;
36 static std::vector<BoostContext*> workers_context_;
37 static uintptr_t threads_working_;
38 static xbt_os_thread_key_t worker_id_key_;
39 static unsigned long process_index_;
40 static BoostContext* maestro_context_;
42 #if BOOST_VERSION < 105600
43 boost::context::fcontext_t* fc_ = nullptr;
44 typedef intptr_t arg_type;
45 #elif BOOST_VERSION < 106100
46 boost::context::fcontext_t fc_;
47 typedef intptr_t arg_type;
49 boost::context::detail::fcontext_t fc_;
50 typedef boost::context::detail::transfer_t arg_type;
52 static void wrapper(arg_type arg);
53 static void swap(BoostContext* from, BoostContext* to);
55 #if HAVE_SANITIZE_ADDRESS_FIBER_SUPPORT
56 const void* asan_stack_ = nullptr;
57 size_t asan_stack_size_ = 0;
58 bool asan_stop_ = false;
61 void* stack_ = nullptr;
63 BoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process);
64 ~BoostContext() override;
66 virtual void resume() = 0;
68 friend BoostContextFactory;
71 class SerialBoostContext : public BoostContext {
73 SerialBoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
74 : BoostContext(std::move(code), cleanup_func, process)
77 void suspend() override;
78 void resume() override;
81 #if HAVE_THREAD_CONTEXTS
82 class ParallelBoostContext : public BoostContext {
84 ParallelBoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
85 : BoostContext(std::move(code), cleanup_func, process)
88 void suspend() override;
89 void resume() override;
93 class BoostContextFactory : public ContextFactory {
95 BoostContextFactory();
96 ~BoostContextFactory() override;
97 Context* create_context(std::function<void()> code, void_pfn_smxprocess_t, smx_actor_t process) override;
98 void run_all() override;