-/* Copyright (c) 2007-2016. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2019. 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 "simgrid/forward.h"
+#include "src/kernel/activity/ActivityImpl.hpp"
+
+#include <csignal>
#include <functional>
-#include <memory>
-#include <unordered_map>
-#include <vector>
-
-#include <xbt/functional.hpp>
-
-#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 <signal.h>
-#include "src/simix/ActorImpl.hpp"
-
-#include <simgrid/simix.hpp>
namespace simgrid {
namespace kernel {
namespace 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<void()> code,
- void_pfn_smxprocess_t cleanup, smx_actor_t process) = 0;
-
- // Optional methods for attaching main() as a context:
-
- /** Creates a context from the current context of execution
- *
- * This will not work on all implementation of `ContextFactory`.
- */
- virtual Context* attach(void_pfn_smxprocess_t cleanup_func, smx_actor_t process);
- virtual Context* create_maestro(std::function<void()> code, smx_actor_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<class T, class... Args>
- T* new_context(Args&&... args)
- {
- T* context = new T(std::forward<Args>(args)...);
- this->declare_context(context, sizeof(T));
- return context;
- }
- };
-
- XBT_PUBLIC_CLASS Context {
- private:
- std::function<void()> code_;
- void_pfn_smxprocess_t cleanup_func_ = nullptr;
- smx_actor_t process_ = nullptr;
- public:
- bool iwannadie;
- public:
- Context(std::function<void()> code,
- void_pfn_smxprocess_t cleanup_func,
- smx_actor_t process);
- void operator()()
- {
- code_();
- }
- bool has_code() const
- {
- return static_cast<bool>(code_);
- }
- smx_actor_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;
- };
-
- XBT_PUBLIC_CLASS AttachContext : public Context {
- public:
-
- AttachContext(std::function<void()> code,
- void_pfn_smxprocess_t cleanup_func,
- smx_actor_t process)
- : Context(std::move(code), cleanup_func, process)
- {}
-
- ~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;
- };
+class XBT_PUBLIC ContextFactory {
+public:
+ explicit ContextFactory() {}
+ virtual ~ContextFactory();
+ virtual Context* create_context(std::function<void()> code, smx_actor_t actor) = 0;
+
+ /** Turn the current thread into a simulation context */
+ virtual Context* attach(smx_actor_t actor);
+ /** Turn the current thread into maestro (the old maestro becomes a regular actor) */
+ virtual Context* create_maestro(std::function<void()> code, smx_actor_t actor);
+
+ virtual void run_all() = 0;
+
+protected:
+ template <class T, class... Args> T* new_context(Args&&... args)
+ {
+ T* context = new T(std::forward<Args>(args)...);
+ context->declare_context(sizeof(T));
+ return context;
+ }
+};
+
+class XBT_PUBLIC Context {
+ friend ContextFactory;
+
+ std::function<void()> code_;
+ smx_actor_t actor_ = nullptr;
+ void declare_context(std::size_t size);
+
+public:
+ bool iwannadie = false;
+
+ Context(std::function<void()> code, smx_actor_t actor);
+ Context(const Context&) = delete;
+ Context& operator=(const Context&) = delete;
+ virtual ~Context();
+
+ void operator()() { code_(); }
+ bool has_code() const { return static_cast<bool>(code_); }
+ smx_actor_t get_actor() { return this->actor_; }
+
+ // Scheduling methods
+ virtual void stop();
+ virtual void suspend() = 0;
+
+ // Retrieving the self() context
+ /** @brief Retrives the current context of this thread */
+ static Context* self();
+ /** @brief Sets the current context of this thread */
+ static void set_current(Context* self);
+};
+
+class XBT_PUBLIC AttachContext : public Context {
+public:
+ AttachContext(std::function<void()> code, smx_actor_t actor) : Context(std::move(code), actor) {}
+
+ ~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;
+};
+
+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<void(void)> 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)();
-XBT_PUBLIC_DATA(ContextFactoryInitializer) factory_initializer;
+XBT_PUBLIC_DATA ContextFactoryInitializer factory_initializer;
XBT_PRIVATE ContextFactory* thread_factory();
XBT_PRIVATE ContextFactory* sysv_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 smx_context_t SIMIX_context_new(
- std::function<void()> code,
- void_pfn_smxprocess_t cleanup_func,
- smx_actor_t simix_process);
-
#ifndef WIN32
-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. */
-#if HAVE_VALGRIND_H
-# define smx_context_usable_stack_size \
- (smx_context_stack_size - sizeof(unsigned int)) /* for valgrind_stack_id */
-#else
-# define smx_context_usable_stack_size smx_context_stack_size
+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();
-/** @brief returns the current running context */
-XBT_PUBLIC(smx_context_t) SIMIX_context_self(); // public because it's used in simgrid-java
-
-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();
-
-XBT_PUBLIC(int) SIMIX_process_get_maxpid();
-
-XBT_PRIVATE void SIMIX_post_create_environment();
-SG_END_DECL()
+XBT_PUBLIC int SIMIX_process_get_maxpid();
-XBT_PRIVATE simgrid::simix::ActorCodeFactory& SIMIX_get_actor_code_factory(const char *name);
+XBT_PRIVATE simgrid::simix::ActorCodeFactory& SIMIX_get_actor_code_factory(const std::string& name);
#endif
