-/* Copyright (c) 2015. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2015-2018. 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_SIMIX_BOOST_CONTEXT_HPP
#define SIMGRID_SIMIX_BOOST_CONTEXT_HPP
+#include <boost/version.hpp>
+#if BOOST_VERSION < 106100
+#include <boost/context/fcontext.hpp>
+#else
+#include <boost/context/detail/fcontext.hpp>
+#endif
+
+#include <atomic>
+#include <cstdint>
#include <functional>
#include <vector>
-#include <xbt/parmap.h>
-
#include <simgrid/simix.hpp>
+#include <xbt/parmap.hpp>
+#include <xbt/xbt_os_thread.h>
+#include "Context.hpp"
+#include "src/internal_config.h"
namespace simgrid {
namespace kernel {
namespace context {
-class BoostContext;
-class BoostSerialContext;
-class BoostParallelContext;
-class BoostContextFactory;
-
/** @brief Userspace context switching implementation based on Boost.Context */
class BoostContext : public Context {
-protected: // static
- static bool parallel_;
- static xbt_parmap_t parmap_;
- static std::vector<BoostContext*> workers_context_;
- static uintptr_t threads_working_;
- static xbt_os_thread_key_t worker_id_key_;
- static unsigned long process_index_;
+public:
+ BoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process);
+ ~BoostContext() override;
+ void stop() override;
+ virtual void resume() = 0;
+
+ static void swap(BoostContext* from, BoostContext* to);
+ static BoostContext* getMaestro() { return maestro_context_; }
+ static void setMaestro(BoostContext* maestro) { maestro_context_ = maestro; }
+
+private:
static BoostContext* maestro_context_;
-protected:
-#if HAVE_BOOST_CONTEXTS == 1
+ void* stack_ = nullptr;
+
+#if BOOST_VERSION < 105600
boost::context::fcontext_t* fc_ = nullptr;
-#else
+ typedef intptr_t arg_type;
+#elif BOOST_VERSION < 106100
boost::context::fcontext_t fc_;
+ typedef intptr_t arg_type;
+#else
+ boost::context::detail::fcontext_t fc_;
+ typedef boost::context::detail::transfer_t arg_type;
#endif
- void* stack_ = nullptr;
+#if HAVE_SANITIZER_ADDRESS_FIBER_SUPPORT
+ const void* asan_stack_ = nullptr;
+ size_t asan_stack_size_ = 0;
+ BoostContext* asan_ctx_ = nullptr;
+ bool asan_stop_ = false;
+#endif
+
+ static void wrapper(arg_type arg);
+};
+
+class SerialBoostContext : public BoostContext {
public:
- friend BoostContextFactory;
- BoostContext(std::function<void()> code,
- void_pfn_smxprocess_t cleanup_func,
- smx_actor_t process);
- ~BoostContext() override;
- virtual void resume();
+ SerialBoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
+ : BoostContext(std::move(code), cleanup_func, process)
+ {
+ }
+ void suspend() override;
+ void resume() override;
+
+ static void run_all();
+
private:
- static void wrapper(int first, ...);
+ static unsigned long process_index_;
};
-class BoostContextFactory : public ContextFactory {
+#if HAVE_THREAD_CONTEXTS
+class ParallelBoostContext : public BoostContext {
public:
- friend BoostContext;
- friend BoostSerialContext;
- friend BoostParallelContext;
+ ParallelBoostContext(std::function<void()> code, void_pfn_smxprocess_t cleanup_func, smx_actor_t process)
+ : BoostContext(std::move(code), cleanup_func, process)
+ {
+ }
+ void suspend() override;
+ void resume() override;
+ static void initialize();
+ static void finalize();
+ static void run_all();
+
+private:
+ static simgrid::xbt::Parmap<smx_actor_t>* parmap_;
+ static std::vector<ParallelBoostContext*> workers_context_;
+ static std::atomic<uintptr_t> threads_working_;
+ static thread_local uintptr_t worker_id_;
+};
+#endif
+
+class BoostContextFactory : public ContextFactory {
+public:
BoostContextFactory();
~BoostContextFactory() override;
- Context* create_context(std::function<void()> code,
- void_pfn_smxprocess_t, smx_actor_t process) override;
+ Context* create_context(std::function<void()> code, void_pfn_smxprocess_t cleanup, smx_actor_t process) override;
void run_all() override;
-};
+private:
+ bool parallel_;
+};
}}} // namespace
#endif