-/* Copyright (c) 2009-2018. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2009-2019. 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. */
namespace simgrid {
namespace kernel {
namespace context {
+class SwappedContext;
-class SwappedContext : public Context {
+class SwappedContextFactory : public ContextFactory {
+ friend SwappedContext; // Reads whether we are in parallel mode
public:
- SwappedContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process);
- virtual ~SwappedContext();
+ SwappedContextFactory();
+ ~SwappedContextFactory() override;
+ void run_all() override;
+
+private:
+ bool parallel_;
- static void initialize(); // Initialize the module, using the options
- static void finalize(); // Finalize the module
+ unsigned long process_index_ = 0; // Next actor to execute during sequential run_all()
- virtual void suspend();
- virtual void resume();
+ /* For the parallel execution */
+ simgrid::xbt::Parmap<smx_actor_t>* parmap_;
+ std::vector<SwappedContext*> workers_context_; /* space to save the worker's context in each thread */
+ std::atomic<uintptr_t> threads_working_{0}; /* number of threads that have started their work */
+};
- static void run_all();
+class SwappedContext : public Context {
+public:
+ SwappedContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t get_actor,
+ SwappedContextFactory* factory);
+ virtual ~SwappedContext();
- virtual void swap_into(SwappedContext* to) = 0; // Defined in subclasses
+ void suspend() override;
+ virtual void resume();
+ void stop() override;
- static SwappedContext* get_maestro() { return maestro_context_; }
- static void set_maestro(SwappedContext* maestro) { maestro_context_ = maestro; }
+ virtual void swap_into(SwappedContext* to) = 0; // Defined in Raw, Boost and UContext subclasses
-protected:
- void* stack_ = nullptr; /* the thread stack */
+ void* get_stack();
- /* For the parallel execution */
- static simgrid::xbt::Parmap<smx_actor_t>* parmap_;
- static std::vector<SwappedContext*> workers_context_;
- static std::atomic<uintptr_t> threads_working_;
static thread_local uintptr_t worker_id_;
private:
- static unsigned long process_index_;
- static SwappedContext* maestro_context_;
+ void* stack_ = nullptr; /* the thread stack */
+ SwappedContextFactory* const factory_; // for sequential and parallel run_all()
};
} // namespace context