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_;
41 #if BOOST_VERSION < 105600
42 boost::context::fcontext_t* fc_ = nullptr;
43 typedef intptr_t arg_type;
44 #elif BOOST_VERSION < 106100
45 boost::context::fcontext_t fc_;
46 typedef intptr_t arg_type;
48 boost::context::detail::fcontext_t fc_;
49 typedef boost::context::detail::transfer_t arg_type;
51 static void wrapper(arg_type arg);
52 static void swap(BoostContext* from, BoostContext* to);
54 #if HAVE_SANITIZE_ADDRESS_FIBER_SUPPORT
55 const void* asan_stack_ = nullptr;
56 size_t asan_stack_size_ = 0;
57 bool asan_stop_ = false;
60 void* stack_ = nullptr;
62 BoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process);
63 ~BoostContext() override;
65 virtual void resume() = 0;
67 static BoostContext* getMaestro() { return maestro_context_; }
68 static void setMaestro(BoostContext* maestro) { maestro_context_ = maestro; }
70 friend BoostContextFactory;
73 static BoostContext* maestro_context_;
76 class SerialBoostContext : public BoostContext {
78 SerialBoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
79 : BoostContext(std::move(code), cleanup_func, process)
82 void suspend() override;
83 void resume() override;
86 #if HAVE_THREAD_CONTEXTS
87 class ParallelBoostContext : public BoostContext {
89 ParallelBoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
90 : BoostContext(std::move(code), cleanup_func, process)
93 void suspend() override;
94 void resume() override;
98 class BoostContextFactory : public ContextFactory {
100 BoostContextFactory();
101 ~BoostContextFactory() override;
102 Context* create_context(std::function<void()> code, void_pfn_smxprocess_t, smx_actor_t process) override;
103 void run_all() override;