X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/b686073e4e6991ea9ae4154a13bf693acd738551..c68caf0f27b0fdde9df0a39857e5a162fc196d85:/src/kernel/context/Context.hpp diff --git a/src/kernel/context/Context.hpp b/src/kernel/context/Context.hpp index eab87f8071..0f4a2b0451 100644 --- a/src/kernel/context/Context.hpp +++ b/src/kernel/context/Context.hpp @@ -1,142 +1,113 @@ -/* Copyright (c) 2007-2016. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2007-2018. 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. */ -#ifndef _SIMGRID_KERNEL_CONTEXT_CONTEXT_HPP -#define _SIMGRID_KERNEL_CONTEXT_CONTEXT_HPP +#ifndef SIMGRID_KERNEL_CONTEXT_CONTEXT_HPP +#define SIMGRID_KERNEL_CONTEXT_CONTEXT_HPP -#include -#include -#include -#include +#include "simgrid/forward.h" +#include "src/internal_config.h" +#include "src/kernel/activity/ActivityImpl.hpp" -#include +#include -#include "src/internal_config.h" -#include "simgrid/simix.h" -#include "surf/surf.h" -#include "xbt/base.h" -#include "xbt/fifo.h" -#include "xbt/swag.h" -#include "xbt/dict.h" -#include "xbt/mallocator.h" -#include "xbt/config.h" -#include "xbt/xbt_os_time.h" -#include "xbt/function_types.h" -#include "src/xbt/ex_interface.h" -#include "src/instr/instr_private.h" -#include "src/simix/smx_host_private.h" -#include "src/simix/smx_io_private.h" -#include "src/simix/smx_network_private.h" -#include "src/simix/popping_private.h" -#include "src/simix/smx_synchro_private.h" - -#include -#include "src/simix/ActorImpl.hpp" - -#include +/* Process creation/destruction callbacks */ +typedef void (*void_pfn_smxprocess_t)(smx_actor_t); namespace simgrid { namespace kernel { namespace context { - class Context; - - XBT_PUBLIC_CLASS ContextFactory { - private: - std::string name_; - public: - - explicit ContextFactory(std::string name) : name_(std::move(name)) {} - virtual ~ContextFactory(); - virtual Context* create_context(std::function code, - void_pfn_smxprocess_t cleanup, smx_process_t process) = 0; - - // Optional methods for attaching main() as a context: - - /** Creates a context from the current context of execution +class XBT_PUBLIC ContextFactory { +private: + std::string name_; + +public: + explicit ContextFactory(std::string name) : name_(std::move(name)) {} + virtual ~ContextFactory(); + virtual Context* create_context(std::function code, void_pfn_smxprocess_t cleanup, smx_actor_t process) = 0; + + /** Turn the current thread into a simulation context */ + virtual Context* attach(void_pfn_smxprocess_t cleanup_func, smx_actor_t process); + /** 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 void run_all() = 0; + /** @brief Returns the current context of this thread. */ + Context* self(); + std::string const& name() const { return name_; } + +protected: + template T* new_context(Args&&... args) + { + T* context = new T(std::forward(args)...); + context->declare_context(sizeof(T)); + return context; + } +}; + +class XBT_PUBLIC Context { + friend ContextFactory; + +private: + std::function code_; + void_pfn_smxprocess_t cleanup_func_ = nullptr; + smx_actor_t actor_ = nullptr; + void declare_context(std::size_t size); + +public: + class StopRequest { + /** @brief Exception launched to kill a process, in order to properly unwind its stack and release RAII stuff * - * This will not work on all implementation of `ContextFactory`. + * 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) */ - virtual Context* attach(void_pfn_smxprocess_t cleanup_func, smx_process_t process); - virtual Context* create_maestro(std::function code, smx_process_t process); - - virtual void run_all() = 0; - virtual Context* self(); - std::string const& name() const - { - return name_; - } - private: - void declare_context(void* T, std::size_t size); - protected: - template - T* new_context(Args&&... args) - { - T* context = new T(std::forward(args)...); - this->declare_context(context, sizeof(T)); - return context; - } - }; + public: + StopRequest() = default; + explicit StopRequest(std::string msg) : msg_(msg) {} - XBT_PUBLIC_CLASS Context { private: - std::function code_; - void_pfn_smxprocess_t cleanup_func_ = nullptr; - smx_process_t process_ = nullptr; - public: - bool iwannadie; - public: - Context(std::function code, - void_pfn_smxprocess_t cleanup_func, - smx_process_t process); - void operator()() - { - code_(); - } - bool has_code() const - { - return (bool) code_; - } - smx_process_t process() - { - return this->process_; - } - void set_cleanup(void_pfn_smxprocess_t cleanup) - { - cleanup_func_ = cleanup; - } - - // Virtual methods - virtual ~Context(); - virtual void stop(); - virtual void suspend() = 0; + std::string msg_; }; + bool iwannadie = false; - XBT_PUBLIC_CLASS AttachContext : public Context { - public: + Context(std::function code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process); + Context(const Context&) = delete; + Context& operator=(const Context&) = delete; - AttachContext(std::function code, - void_pfn_smxprocess_t cleanup_func, - smx_process_t process) - : Context(std::move(code), cleanup_func, process) - {} + void operator()() { code_(); } + bool has_code() const { return static_cast(code_); } + smx_actor_t process() { return this->actor_; } + void set_cleanup(void_pfn_smxprocess_t cleanup) { cleanup_func_ = cleanup; } - ~AttachContext() override; + // Virtual methods + virtual ~Context(); + virtual void stop(); + virtual void suspend() = 0; +}; - /** Called by the context when it is ready to give control - * to the maestro. - */ - virtual void attach_start() = 0; +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) + { + } - /** Called by the context when it has finished its job */ - virtual void attach_stop() = 0; - }; + ~AttachContext() override; + + /** 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; +}; /* This allows Java to hijack the context factory (Java induces factories of factory :) */ -typedef ContextFactory* (*ContextFactoryInitializer)(void); -XBT_PUBLIC_DATA(ContextFactoryInitializer) factory_initializer; +typedef ContextFactory* (*ContextFactoryInitializer)(); +XBT_PUBLIC_DATA ContextFactoryInitializer factory_initializer; XBT_PRIVATE ContextFactory* thread_factory(); XBT_PRIVATE ContextFactory* sysv_factory(); @@ -147,48 +118,40 @@ XBT_PRIVATE ContextFactory* boost_factory(); typedef simgrid::kernel::context::ContextFactory *smx_context_factory_t; -SG_BEGIN_DECL() - +XBT_PRIVATE void SIMIX_context_mod_init(); +XBT_PRIVATE void SIMIX_context_mod_exit(); -XBT_PRIVATE void SIMIX_context_mod_init(void); -XBT_PRIVATE void SIMIX_context_mod_exit(void); - -XBT_PRIVATE smx_context_t SIMIX_context_new( - std::function code, - void_pfn_smxprocess_t cleanup_func, - smx_process_t simix_process); +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]); +XBT_PUBLIC_DATA char sigsegv_stack[SIGSTKSZ]; #endif /* We are using the bottom of the stack to save some information, like the * valgrind_stack_id. Define smx_context_usable_stack_size to give the remaining - * size for the stack. */ + * size for the stack. Round its value to a multiple of 16 (asan wants the stacks to be aligned this way). */ #if HAVE_VALGRIND_H -# define smx_context_usable_stack_size \ - (smx_context_stack_size - sizeof(unsigned int)) /* for valgrind_stack_id */ +#define smx_context_usable_stack_size \ + ((smx_context_stack_size - sizeof(unsigned int)) & ~0xf) /* for valgrind_stack_id */ #else -# define smx_context_usable_stack_size smx_context_stack_size +#define smx_context_usable_stack_size (smx_context_stack_size & ~0xf) #endif /** @brief Executes all the processes to run (in parallel if possible). */ -XBT_PRIVATE void SIMIX_context_runall(void); +XBT_PRIVATE void SIMIX_context_runall(); /** @brief returns the current running context */ -XBT_PUBLIC(smx_context_t) SIMIX_context_self(void); // public because it's used in simgrid-java +XBT_PUBLIC smx_context_t SIMIX_context_self(); // public because it's used in simgrid-java -XBT_PRIVATE void *SIMIX_context_stack_new(void); +XBT_PRIVATE void *SIMIX_context_stack_new(); XBT_PRIVATE void SIMIX_context_stack_delete(void *stack); -XBT_PRIVATE void SIMIX_context_set_current(smx_context_t context); -XBT_PRIVATE smx_context_t SIMIX_context_get_current(void); - -XBT_PUBLIC(int) SIMIX_process_get_maxpid(void); +XBT_PUBLIC void SIMIX_context_set_current(smx_context_t context); -XBT_PRIVATE void SIMIX_post_create_environment(void); +XBT_PUBLIC int SIMIX_process_get_maxpid(); -SG_END_DECL() +XBT_PRIVATE void SIMIX_post_create_environment(); -XBT_PRIVATE simgrid::simix::ActorCodeFactory& SIMIX_get_actor_code_factory(const char *name); +XBT_PRIVATE simgrid::simix::ActorCodeFactory& SIMIX_get_actor_code_factory(std::string name); #endif