-/* Copyright (c) 2009-2015. The SimGrid Team.
+/* Copyright (c) 2009-2017. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
namespace kernel {
namespace context {
-class ThreadContext;
-class ThreadContextFactory;
-
class ThreadContext : public AttachContext {
public:
- friend ThreadContextFactory;
- ThreadContext(std::function<void()> code,
- void_pfn_smxprocess_t cleanup_func,
- smx_actor_t process, bool maestro =false);
+ ThreadContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process, bool maestro);
~ThreadContext() override;
void stop() override;
void suspend() override;
void attach_start() override;
void attach_stop() override;
+
+ bool isMaestro() const { return is_maestro_; }
+ void release(); // unblock context's start()
+ void wait(); // wait for context's yield()
+
private:
/** A portable thread */
xbt_os_thread_t thread_ = nullptr;
xbt_os_sem_t begin_ = nullptr;
/** Semaphore used to schedule/unschedule */
xbt_os_sem_t end_ = nullptr;
+ bool is_maestro_;
+
+ void start(); // match a call to release()
+ void yield(); // match a call to yield()
+ virtual void start_hook() {} // called after start()
+ virtual void yield_hook() {} // called before yield()
static void* wrapper(void *param);
- static void* maestro_wrapper(void *param);
+};
+
+class SerialThreadContext : public ThreadContext {
+public:
+ SerialThreadContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process, bool maestro)
+ : ThreadContext(std::move(code), cleanup_func, process, maestro)
+ {
+ }
+
+ static void run_all();
+};
+
+class ParallelThreadContext : public ThreadContext {
public:
- void start();
+ ParallelThreadContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process,
+ bool maestro)
+ : ThreadContext(std::move(code), cleanup_func, process, maestro)
+ {
+ }
+
+ static void initialize();
+ static void finalize();
+ static void run_all();
+
+private:
+ static xbt_os_sem_t thread_sem_;
+
+ void start_hook() override;
+ void yield_hook() override;
};
class ThreadContextFactory : public ContextFactory {
public:
ThreadContextFactory();
~ThreadContextFactory() override;
- ThreadContext* create_context(std::function<void()> code,
- void_pfn_smxprocess_t cleanup_func, smx_actor_t process) override;
+ ThreadContext* create_context(std::function<void()> code, void_pfn_smxprocess_t cleanup_func,
+ smx_actor_t process) override
+ {
+ bool maestro = not code;
+ return create_context(std::move(code), cleanup_func, process, maestro);
+ }
void run_all() override;
- ThreadContext* self() override;
+ ThreadContext* self() override { return static_cast<ThreadContext*>(xbt_os_thread_get_extra_data()); }
// Optional methods:
- ThreadContext* attach(void_pfn_smxprocess_t cleanup_func, smx_actor_t process) override;
- ThreadContext* create_maestro(std::function<void()> code, smx_actor_t process) override;
-};
+ ThreadContext* attach(void_pfn_smxprocess_t cleanup_func, smx_actor_t process) override
+ {
+ return create_context(std::function<void()>(), cleanup_func, process, false);
+ }
+ ThreadContext* create_maestro(std::function<void()> code, smx_actor_t process) override
+ {
+ return create_context(std::move(code), nullptr, process, true);
+ }
+
+private:
+ bool parallel_;
+ ThreadContext* create_context(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process,
+ bool maestro);
+};
}}} // namespace
#endif