X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/48ec45df6c4779f97976a3d72665698f24959f4f..ea74f5d95928a521a588737e81f1de94eef25d19:/src/kernel/context/Context.hpp diff --git a/src/kernel/context/Context.hpp b/src/kernel/context/Context.hpp index a46b2d32f6..edb1e621e4 100644 --- a/src/kernel/context/Context.hpp +++ b/src/kernel/context/Context.hpp @@ -1,4 +1,4 @@ -/* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2007-2022. The SimGrid Team. All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it * under the terms of the license (GNU LGPL) which comes with this package. */ @@ -6,36 +6,39 @@ #ifndef SIMGRID_KERNEL_CONTEXT_CONTEXT_HPP #define SIMGRID_KERNEL_CONTEXT_CONTEXT_HPP -#include "simgrid/forward.h" +#include +#include + #include "src/kernel/activity/ActivityImpl.hpp" #include #include -/* Process creation/destruction callbacks */ -typedef void (*void_pfn_smxprocess_t)(smx_actor_t); - namespace simgrid { namespace kernel { namespace context { +extern unsigned stack_size; +extern unsigned guard_size; class XBT_PUBLIC ContextFactory { public: - explicit ContextFactory() {} + explicit ContextFactory() = default; + ContextFactory(const ContextFactory&) = delete; + ContextFactory& operator=(const ContextFactory&) = delete; virtual ~ContextFactory(); - virtual Context* create_context(std::function code, void_pfn_smxprocess_t cleanup, smx_actor_t process) = 0; + virtual Context* create_context(std::function&& code, actor::ActorImpl* actor) = 0; /** Turn the current thread into a simulation context */ - virtual Context* attach(void_pfn_smxprocess_t cleanup_func, smx_actor_t process); + virtual Context* attach(actor::ActorImpl* actor); /** Turn the current thread into maestro (the old maestro becomes a regular actor) */ - virtual Context* create_maestro(std::function code, smx_actor_t process); + virtual Context* create_maestro(std::function&& code, actor::ActorImpl* actor); virtual void run_all() = 0; protected: template T* new_context(Args&&... args) { - T* context = new T(std::forward(args)...); + auto* context = new T(std::forward(args)...); context->declare_context(sizeof(T)); return context; } @@ -44,31 +47,37 @@ protected: class XBT_PUBLIC Context { friend ContextFactory; -private: + static thread_local Context* current_context_; + std::function code_; - void_pfn_smxprocess_t cleanup_func_ = nullptr; - smx_actor_t actor_ = nullptr; + actor::ActorImpl* actor_ = nullptr; + bool iwannadie_ = false; + bool is_maestro_; void declare_context(std::size_t size); public: - bool iwannadie = false; +#ifndef WIN32 + static int install_sigsegv_stack(stack_t* old_stack, bool enable); +#endif - Context(std::function code, void_pfn_smxprocess_t cleanup_func, smx_actor_t actor); + Context(std::function&& code, actor::ActorImpl* actor, bool maestro); Context(const Context&) = delete; Context& operator=(const Context&) = delete; virtual ~Context(); - void operator()() { code_(); } + bool wannadie() const { return iwannadie_; } + void set_wannadie(bool value = true) { iwannadie_ = value; } + bool is_maestro() const { return is_maestro_; } + void operator()() const { code_(); } bool has_code() const { return static_cast(code_); } - smx_actor_t get_actor() { return this->actor_; } - void set_cleanup(void_pfn_smxprocess_t cleanup) { cleanup_func_ = cleanup; } + actor::ActorImpl* get_actor() const { return this->actor_; } // Scheduling methods virtual void stop(); virtual void suspend() = 0; // Retrieving the self() context - /** @brief Retrives the current context of this thread */ + /** @brief Retrieves the current context of this thread */ static Context* self(); /** @brief Sets the current context of this thread */ static void set_current(Context* self); @@ -76,43 +85,24 @@ public: class XBT_PUBLIC AttachContext : public Context { public: - AttachContext(std::function code, void_pfn_smxprocess_t cleanup_func, smx_actor_t actor) - : Context(std::move(code), cleanup_func, actor) + AttachContext(std::function&& code, actor::ActorImpl* actor, bool maestro) + : Context(std::move(code), actor, maestro) { } - + AttachContext(const AttachContext&) = delete; + AttachContext& operator=(const AttachContext&) = delete; ~AttachContext() override; - /** Called by the context when it is ready to give control - * to the maestro. - */ + /** Called by the context when it is ready to give control to the maestro */ virtual void attach_start() = 0; /** Called by the context when it has finished its job */ virtual void attach_stop() = 0; }; -class XBT_PUBLIC StopRequest { - /** @brief Exception launched to kill a process, in order to properly unwind its stack and release RAII stuff - * - * Nope, Sonar, this should not inherit of std::exception nor of simgrid::Exception. - * Otherwise, users may accidentally catch it with a try {} catch (std::exception) - */ -public: - StopRequest() = default; - explicit StopRequest(const std::string& msg) : msg_(std::string("Actor killed (") + msg + std::string(").")) {} - ~StopRequest(); - const char* what() const noexcept { return msg_.c_str(); } - - static void do_throw(); - static bool try_n_catch(std::function try_block); - -private: - std::string msg_ = std::string("Actor killed."); -}; /* This allows Java to hijack the context factory (Java induces factories of factory :) */ -typedef ContextFactory* (*ContextFactoryInitializer)(); +using ContextFactoryInitializer = ContextFactory* (*)(); XBT_PUBLIC_DATA ContextFactoryInitializer factory_initializer; XBT_PRIVATE ContextFactory* thread_factory(); @@ -120,25 +110,13 @@ XBT_PRIVATE ContextFactory* sysv_factory(); XBT_PRIVATE ContextFactory* raw_factory(); XBT_PRIVATE ContextFactory* boost_factory(); -}}} - -typedef simgrid::kernel::context::ContextFactory *smx_context_factory_t; - -XBT_PRIVATE void SIMIX_context_mod_init(); -XBT_PRIVATE void SIMIX_context_mod_exit(); - -XBT_PUBLIC smx_context_t SIMIX_context_new(std::function code, void_pfn_smxprocess_t cleanup_func, - smx_actor_t simix_process); - -#ifndef WIN32 -XBT_PUBLIC_DATA char sigsegv_stack[SIGSTKSZ]; -#endif - -/** @brief Executes all the processes to run (in parallel if possible). */ -XBT_PRIVATE void SIMIX_context_runall(); - -XBT_PUBLIC int SIMIX_process_get_maxpid(); - -XBT_PRIVATE simgrid::simix::ActorCodeFactory& SIMIX_get_actor_code_factory(const std::string& name); +XBT_PUBLIC int is_parallel(); +XBT_PUBLIC int get_nthreads(); +XBT_PUBLIC void set_nthreads(int nb_threads); +XBT_PUBLIC void set_parallel_mode(e_xbt_parmap_mode_t mode); +XBT_PUBLIC e_xbt_parmap_mode_t get_parallel_mode(); +} // namespace context +} // namespace kernel +} // namespace simgrid #endif