1 /* Copyright (c) 2007-2018. 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. */
8 #include "src/kernel/context/Context.hpp"
9 #include "src/simix/smx_private.hpp"
11 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_context);
14 * @brief creates a new context for a user level process
15 * @param code a main function
16 * @param cleanup_func the function to call when the context stops
17 * @param simix_process
19 smx_context_t SIMIX_context_new(
20 std::function<void()> code,
21 void_pfn_smxprocess_t cleanup_func,
22 smx_actor_t simix_process)
24 xbt_assert(simix_global, "simix is not initialized, please call MSG_init first");
25 return simix_global->context_factory->create_context(
26 std::move(code), cleanup_func, simix_process);
32 static thread_local smx_context_t smx_current_context;
34 ContextFactoryInitializer factory_initializer = nullptr;
36 ContextFactory::~ContextFactory() = default;
38 Context* ContextFactory::self()
40 return smx_current_context;
43 void Context::declare_context(std::size_t size)
46 /* Store the address of the stack in heap to compare it apart of heap comparison */
48 MC_ignore_heap(this, size);
52 Context* ContextFactory::attach(void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
54 xbt_die("Cannot attach with this ContextFactory.\n"
55 "Try using --cfg=contexts/factory:thread instead.\n");
58 Context* ContextFactory::create_maestro(std::function<void()> code, smx_actor_t process)
60 xbt_die("Cannot create_maestro with this ContextFactory.\n"
61 "Try using --cfg=contexts/factory:thread instead.\n");
64 Context::Context(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t actor)
65 : code_(std::move(code)), actor_(actor)
67 /* If the user provided a function for the process then use it.
68 Otherwise, it is the context for maestro and we should set it as the
71 this->cleanup_func_ = cleanup_func;
73 SIMIX_context_set_current(this);
76 Context::~Context() = default;
80 if (this->cleanup_func_)
81 this->cleanup_func_(this->actor_);
82 this->actor_->suspended_ = 0;
84 this->iwannadie = false;
85 simgrid::simix::simcall([this] { SIMIX_process_cleanup(this->actor_); });
86 this->iwannadie = true;
89 AttachContext::~AttachContext() = default;
93 /** @brief Executes all the processes to run (in parallel if possible). */
94 void SIMIX_context_runall()
96 simix_global->context_factory->run_all();
99 /** @brief returns the current running context */
100 smx_context_t SIMIX_context_self()
102 if (simix_global && simix_global->context_factory)
103 return simix_global->context_factory->self();
109 * @brief Sets the current context of this thread.
110 * @param context the context to set
112 void SIMIX_context_set_current(smx_context_t context)
114 simgrid::kernel::context::smx_current_context = context;