/* 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. */
-/** \file Rawcontext.cpp
+/** \file RawContext.cpp
* Fast context switching inspired from SystemV ucontexts.
*
* In contrast to System V context, it does not touch the signal mask
#include <utility>
#include <functional>
-#include <xbt/log.h>
-#include <xbt/parmap.h>
-#include <xbt/dynar.h>
+#include "src/internal_config.h"
+
+#include "xbt/log.h"
+#include "xbt/parmap.h"
+#include "xbt/dynar.h"
#include "smx_private.h"
#include "smx_private.hpp"
ContextFactory* raw_factory()
{
- XBT_VERB("Using raw contexts. "
- "Because the glibc is just not good enough for us.");
+ XBT_VERB("Using raw contexts. Because the glibc is just not good enough for us.");
return new RawContextFactory();
}
// ***** Loads of static stuff
-#ifdef CONTEXT_THREADS
+#if HAVE_THREAD_CONTEXTS
static xbt_parmap_t raw_parmap;
static simgrid::simix::RawContext** raw_workers_context; /* space to save the worker context in each thread */
-static unsigned long raw_threads_working; /* number of threads that have started their work */
+static uintptr_t raw_threads_working; /* number of threads that have started their work */
static xbt_os_thread_key_t raw_worker_id_key; /* thread-specific storage for the thread id */
#endif
#ifdef ADAPTIVE_THRESHOLD
rawctx_entry_point_t entry_point, void* arg);
extern "C" void raw_swapcontext(raw_stack_t* old, raw_stack_t new_context);
-#if PROCESSOR_x86_64
+#if SIMGRID_PROCESSOR_x86_64
__asm__ (
-#if defined(APPLE)
+#if defined(__APPLE__)
".text\n"
".globl _raw_makecontext\n"
"_raw_makecontext:\n"
);
__asm__ (
-#if defined(APPLE)
+#if defined(__APPLE__)
".text\n"
".globl _raw_swapcontext\n"
"_raw_swapcontext:\n"
" pop %rdi\n"
" ret\n"
);
-#elif PROCESSOR_i686
+#elif SIMGRID_PROCESSOR_i686
__asm__ (
-#if defined(APPLE) || defined(_WIN32)
+#if defined(__APPLE__) || defined(_WIN32)
".text\n"
".globl _raw_makecontext\n"
"_raw_makecontext:\n"
);
__asm__ (
-#if defined(APPLE) || defined(_WIN32)
+#if defined(__APPLE__) || defined(_WIN32)
".text\n"
".globl _raw_swapcontext\n"
"_raw_swapcontext:\n"
/* If you implement raw contexts for other processors, don't forget to
- update the definition of HAVE_RAWCTX in tools/cmake/CompleteInFiles.cmake */
+ update the definition of HAVE_RAW_CONTEXTS in tools/cmake/CompleteInFiles.cmake */
raw_stack_t raw_makecontext(void* malloced_stack, int stack_size,
rawctx_entry_point_t entry_point, void* arg) {
#endif
raw_context_parallel = SIMIX_context_is_parallel();
if (raw_context_parallel) {
-#ifdef CONTEXT_THREADS
+#if HAVE_THREAD_CONTEXTS
int nthreads = SIMIX_context_get_nthreads();
xbt_os_thread_key_create(&raw_worker_id_key);
// TODO, lazily init
RawContextFactory::~RawContextFactory()
{
-#ifdef CONTEXT_THREADS
+#if HAVE_THREAD_CONTEXTS
if (raw_parmap)
xbt_parmap_destroy(raw_parmap);
xbt_free(raw_workers_context);
void RawContextFactory::run_all_parallel()
{
-#ifdef CONTEXT_THREADS
+#if HAVE_THREAD_CONTEXTS
raw_threads_working = 0;
if (raw_parmap == nullptr)
raw_parmap = xbt_parmap_new(
void RawContext::suspend_parallel()
{
-#ifdef CONTEXT_THREADS
+#if HAVE_THREAD_CONTEXTS
/* determine the next context */
smx_process_t next_work = (smx_process_t) xbt_parmap_next(raw_parmap);
RawContext* next_context = nullptr;
else {
/* all processes were run, go to the barrier */
XBT_DEBUG("No more processes to run");
- unsigned long worker_id = (unsigned long)(uintptr_t)
+ uintptr_t worker_id = (uintptr_t)
xbt_os_thread_get_specific(raw_worker_id_key);
next_context = (RawContext*) raw_workers_context[worker_id];
- XBT_DEBUG("Restoring worker stack %lu (working threads = %lu)",
+ XBT_DEBUG("Restoring worker stack %zu (working threads = %zu)",
worker_id, raw_threads_working);
}
void RawContext::resume_parallel()
{
-#ifdef CONTEXT_THREADS
- unsigned long worker_id = __sync_fetch_and_add(&raw_threads_working, 1);
- xbt_os_thread_set_specific(raw_worker_id_key, (void*)(uintptr_t) worker_id);
+#if HAVE_THREAD_CONTEXTS
+ uintptr_t worker_id = __sync_fetch_and_add(&raw_threads_working, 1);
+ xbt_os_thread_set_specific(raw_worker_id_key, (void*) worker_id);
RawContext* worker_context = (RawContext*) SIMIX_context_self();
raw_workers_context[worker_id] = worker_context;
- XBT_DEBUG("Saving worker stack %lu", worker_id);
+ XBT_DEBUG("Saving worker stack %zu", worker_id);
SIMIX_context_set_current(this);
raw_swapcontext(&worker_context->stack_top_, this->stack_top_);
#else