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ContextBoost: cleanup in includes and cosmetic moves and renames.
[simgrid.git] / src / kernel / context / ContextBoost.hpp
1 /* Copyright (c) 2015-2017. The SimGrid Team. All rights reserved.          */
2
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. */
5
6 #ifndef SIMGRID_SIMIX_BOOST_CONTEXT_HPP
7 #define SIMGRID_SIMIX_BOOST_CONTEXT_HPP
8
9 #include <boost/context/all.hpp>
10
11 #include <cstdint>
12 #include <functional>
13 #include <vector>
14
15 #include <simgrid/simix.hpp>
16 #include <xbt/parmap.hpp>
17 #include <xbt/xbt_os_thread.h>
18
19 #include "Context.hpp"
20 #include "src/internal_config.h"
21 #include "src/simix/smx_private.hpp"
22
23 namespace simgrid {
24 namespace kernel {
25 namespace context {
26
27 class BoostContext;
28 class SerialBoostContext;
29 class ParallelBoostContext;
30 class BoostContextFactory;
31
32 /** @brief Userspace context switching implementation based on Boost.Context */
33 class BoostContext : public Context {
34 protected: // static
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_;
42
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;
49 #else
50   boost::context::detail::fcontext_t fc_;
51   typedef boost::context::detail::transfer_t arg_type;
52 #endif
53   static void wrapper(arg_type arg);
54   static void swap(BoostContext* from, BoostContext* to);
55
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;
60 #endif
61
62   void* stack_ = nullptr;
63 public:
64   BoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process);
65   ~BoostContext() override;
66   void stop() override;
67   virtual void resume() = 0;
68
69   friend BoostContextFactory;
70 };
71
72 class SerialBoostContext : public BoostContext {
73 public:
74   SerialBoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
75       : BoostContext(std::move(code), cleanup_func, process)
76   {
77   }
78   void suspend() override;
79   void resume() override;
80 };
81
82 #if HAVE_THREAD_CONTEXTS
83 class ParallelBoostContext : public BoostContext {
84 public:
85   ParallelBoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
86       : BoostContext(std::move(code), cleanup_func, process)
87   {
88   }
89   void suspend() override;
90   void resume() override;
91 };
92 #endif
93
94 class BoostContextFactory : public ContextFactory {
95 public:
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;
100 };
101
102 }}} // namespace
103
104 #endif