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/version.hpp>
10 #include <boost/context/fcontext.hpp>
14 #include <xbt/parmap.hpp>
16 #include <simgrid/simix.hpp>
24 class BoostSerialContext;
25 class BoostParallelContext;
26 class BoostContextFactory;
28 /** @brief Userspace context switching implementation based on Boost.Context */
29 class BoostContext : public Context {
31 static bool parallel_;
32 static simgrid::xbt::Parmap<smx_actor_t>* parmap_;
33 static std::vector<BoostContext*> workers_context_;
34 static uintptr_t threads_working_;
35 static xbt_os_thread_key_t worker_id_key_;
36 static unsigned long process_index_;
37 static BoostContext* maestro_context_;
39 #if BOOST_VERSION < 105600
40 boost::context::fcontext_t* fc_ = nullptr;
42 boost::context::fcontext_t fc_;
44 static void smx_ctx_boost_wrapper(intptr_t);
45 static void smx_ctx_boost_jump_fcontext(BoostContext*, BoostContext*);
47 void* stack_ = nullptr;
49 friend BoostContextFactory;
50 BoostContext(std::function<void()> code,
51 void_pfn_smxprocess_t cleanup_func,
53 ~BoostContext() override;
54 virtual void resume();
56 static void wrapper(int first, ...);
59 class BoostContextFactory : public ContextFactory {
62 friend BoostSerialContext;
63 friend BoostParallelContext;
65 BoostContextFactory();
66 ~BoostContextFactory() override;
67 Context* create_context(std::function<void()> code,
68 void_pfn_smxprocess_t, smx_actor_t process) override;
69 void run_all() override;