-/* Copyright (c) 2009-2022. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2009-2023. 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. */
#include "src/internal_config.h"
#include "src/kernel/EngineImpl.hpp"
#include "src/kernel/actor/ActorImpl.hpp"
-#include "src/sthread/sthread.h" // sthread_inside_simgrid
-#include "xbt/parmap.hpp"
+#include "src/sthread/sthread.h"
+#include "src/xbt/parmap.hpp"
#include "src/kernel/context/ContextSwapped.hpp"
#include <boost/core/demangle.hpp>
#include <memory>
-#include <typeinfo>
-
-#ifdef _WIN32
-#include <malloc.h>
-#include <windows.h>
-#else
#include <sys/mman.h>
-#endif
-
-#ifdef __MINGW32__
-#define _aligned_malloc __mingw_aligned_malloc
-#define _aligned_free __mingw_aligned_free
-#endif /*MINGW*/
+#include <typeinfo>
#if HAVE_VALGRIND_H
#include <valgrind/valgrind.h>
__sanitizer_finish_switch_fiber(nullptr, &context->asan_ctx_->asan_stack_, &context->asan_ctx_->asan_stack_size_);
#endif
try {
- sthread_inside_simgrid = 0;
+ sthread_enable();
(*context)();
- sthread_inside_simgrid = 1;
+ sthread_disable();
context->stop();
} catch (simgrid::ForcefulKillException const&) {
- sthread_inside_simgrid = 1;
+ sthread_disable();
XBT_DEBUG("Caught a ForcefulKillException");
} catch (simgrid::Exception const& e) {
- sthread_inside_simgrid = 1;
+ sthread_disable();
XBT_INFO("Actor killed by an uncaught exception %s", boost::core::demangle(typeid(e).name()).c_str());
throw;
}
#endif
size_t size = actor->get_stacksize() + guard_size;
-#if SIMGRID_HAVE_MC
- /* Cannot use posix_memalign when SIMGRID_HAVE_MC. Align stack by hand, and save the
- * pointer returned by xbt_malloc0. */
- auto* alloc = static_cast<unsigned char*>(xbt_malloc0(size + xbt_pagesize));
- stack_ = alloc - (reinterpret_cast<uintptr_t>(alloc) & (xbt_pagesize - 1)) + xbt_pagesize;
- reinterpret_cast<unsigned char**>(stack_)[-1] = alloc;
-#elif !defined(_WIN32)
void* alloc;
xbt_assert(posix_memalign(&alloc, xbt_pagesize, size) == 0, "Failed to allocate stack.");
this->stack_ = static_cast<unsigned char*>(alloc);
-#else
- this->stack_ = static_cast<unsigned char*>(_aligned_malloc(size, xbt_pagesize));
-#endif
-#ifndef _WIN32
/* This is fatal. We are going to fail at some point when we try reusing this. */
xbt_assert(
mprotect(this->stack_, guard_size, PROT_NONE) != -1,
"Please see https://simgrid.org/doc/latest/Configuring_SimGrid.html#configuring-the-user-code-virtualization "
"for more information.",
strerror(errno));
-#endif
+
this->stack_ = this->stack_ + guard_size;
} else {
this->stack_ = static_cast<unsigned char*>(xbt_malloc0(actor->get_stacksize()));
VALGRIND_STACK_DEREGISTER(valgrind_stack_id_);
#endif
-#ifndef _WIN32
if (guard_size > 0 && not MC_is_active()) {
stack_ = stack_ - guard_size;
if (mprotect(stack_, guard_size, PROT_READ | PROT_WRITE) == -1) {
XBT_WARN("Failed to remove page protection: %s", strerror(errno));
/* try to pursue anyway */
}
-#if SIMGRID_HAVE_MC
- /* Retrieve the saved pointer. See the initialization above. */
- stack_ = reinterpret_cast<unsigned char**>(stack_)[-1];
-#endif
}
-#endif /* not windows */
xbt_free(stack_);
}
* stuff It is much easier to understand what happens if you see the working threads as bodies that swap their soul
* for the ones of the simulated processes that must run.
*/
- if (is_parallel()) {
+ if (Context::is_parallel()) {
// We lazily create the parmap so that all options are actually processed when doing so.
if (parmap_ == nullptr)
- parmap_ = std::make_unique<simgrid::xbt::Parmap<actor::ActorImpl*>>(get_nthreads(), get_parallel_mode());
+ parmap_ =
+ std::make_unique<simgrid::xbt::Parmap<actor::ActorImpl*>>(Context::get_nthreads(), Context::parallel_mode);
// Usually, Parmap::apply() executes the provided function on all elements of the array.
// Here, the executed function does not return the control to the parmap before all the array is processed:
// Save my current soul (either maestro, or one of the minions) in a thread-specific area
worker_context_ = old;
}
- sthread_inside_simgrid = 0;
+ sthread_enable();
// Switch my soul and the actor's one
Context::set_current(this);
old->swap_into(this);
if (i < engine->get_actor_to_run_count()) {
/* Actually swap into the next actor directly without transiting to maestro */
XBT_DEBUG("Run next actor");
- sthread_inside_simgrid = 0;
+ sthread_enable();
next_context = static_cast<SwappedContext*>(engine->get_actor_to_run_at(i)->context_.get());
} else {
/* all processes were run, actually return to maestro */
XBT_DEBUG("No more actors to run");
- sthread_inside_simgrid = 1;
+ sthread_disable();
next_context = factory_.maestro_context_;
}
}
