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 bool parallel_;
36 static simgrid::xbt::Parmap<smx_actor_t>* parmap_;
37 static std::vector<BoostContext*> workers_context_;
38 static uintptr_t threads_working_;
39 static xbt_os_thread_key_t worker_id_key_;
40 static unsigned long process_index_;
41 static BoostContext* maestro_context_;
43 #if BOOST_VERSION < 105600
44 boost::context::fcontext_t* fc_ = nullptr;
45 typedef intptr_t arg_type;
46 #elif BOOST_VERSION < 106100
47 boost::context::fcontext_t fc_;
48 typedef intptr_t arg_type;
50 boost::context::detail::fcontext_t fc_;
51 typedef boost::context::detail::transfer_t arg_type;
53 static void wrapper(arg_type arg);
54 static void swap(BoostContext* from, BoostContext* to);
56 #if HAVE_SANITIZE_ADDRESS_FIBER_SUPPORT
57 const void* asan_stack_ = nullptr;
58 size_t asan_stack_size_ = 0;
59 bool asan_stop_ = false;
62 void* stack_ = nullptr;
64 BoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process);
65 ~BoostContext() override;
67 virtual void resume() = 0;
69 friend BoostContextFactory;
72 class SerialBoostContext : public BoostContext {
74 SerialBoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
75 : BoostContext(std::move(code), cleanup_func, process)
78 void suspend() override;
79 void resume() override;
82 #if HAVE_THREAD_CONTEXTS
83 class ParallelBoostContext : public BoostContext {
85 ParallelBoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
86 : BoostContext(std::move(code), cleanup_func, process)
89 void suspend() override;
90 void resume() override;
94 class BoostContextFactory : public ContextFactory {
96 BoostContextFactory();
97 ~BoostContextFactory() override;
98 Context* create_context(std::function<void()> code, void_pfn_smxprocess_t, smx_actor_t process) override;
99 void run_all() override;