-/* Copyright (c) 2007-2018. 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
-#include "src/internal_config.h"
-#include "src/simix/smx_network_private.hpp"
+#include "simgrid/forward.h"
+#include "src/kernel/activity/ActivityImpl.hpp"
#include <csignal>
+/* Process creation/destruction callbacks */
+typedef void (*void_pfn_smxprocess_t)(smx_actor_t);
+
namespace simgrid {
namespace kernel {
namespace context {
class XBT_PUBLIC ContextFactory {
-private:
- std::string name_;
-
public:
- explicit ContextFactory(std::string name) : name_(std::move(name)) {}
+ explicit ContextFactory() {}
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`.
- */
+ /** 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<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));
+ context->declare_context(sizeof(T));
return context;
}
};
class XBT_PUBLIC Context {
+ friend ContextFactory;
+
private:
std::function<void()> 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
- *
- * 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(std::string msg) : msg_(msg) {}
-
- private:
- std::string msg_;
- };
bool iwannadie = false;
- Context(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process);
+ Context(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, 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 process() { return this->actor_; }
+ smx_actor_t get_actor() { return this->actor_; }
void set_cleanup(void_pfn_smxprocess_t cleanup) { cleanup_func_ = cleanup; }
- // Virtual methods
- virtual ~Context();
+ // 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 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(std::string msg) : msg_(std::string("Actor killed (") + msg + std::string(").")) {}
+ const char* what() const noexcept { return msg_.c_str(); }
+
+ private:
+ std::string msg_ = std::string("Actor killed.");
+ };
};
class XBT_PUBLIC AttachContext : public Context {
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. 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)) & ~0xf) /* for valgrind_stack_id */
-#else
-#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();
-/** @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_PUBLIC 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();
