X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/aa8c0aedd4f2031f1a7356a5b0ff6569ab262b64..df740d05eb82dc5c7af785e0967db186f9ea194c:/src/xbt/xbt_os_thread.c

diff --git a/src/xbt/xbt_os_thread.c b/src/xbt/xbt_os_thread.c
index a469b4d050..a89cf69057 100644
--- a/src/xbt/xbt_os_thread.c
+++ b/src/xbt/xbt_os_thread.c
@@ -2,7 +2,7 @@
 /* Used in RL to get win/lin portability, and in SG when CONTEXT_THREAD     */
 /* in SG, when using HAVE_UCONTEXT_CONTEXTS, xbt_os_thread_stub is used instead   */
 
-/* Copyright (c) 2007-2018. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2007-2019. 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. */
@@ -43,154 +43,6 @@
 
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_sync_os, xbt, "Synchronization mechanism (OS-level)");
 
-typedef struct xbt_os_thread_ {
-  pthread_t t;
-  void *param;
-  pvoid_f_pvoid_t start_routine;
-} s_xbt_os_thread_t;
-static xbt_os_thread_t main_thread = NULL;
-
-/* thread-specific data containing the xbt_os_thread_t structure */
-static int thread_mod_inited = 0;
-
-/* defaults attribute for pthreads */
-static pthread_attr_t thread_attr;
-
-/* frees the xbt_os_thread_t corresponding to the current thread */
-static void xbt_os_thread_free_thread_data(xbt_os_thread_t thread)
-{
-  if (thread == main_thread)    /* just killed main thread */
-    main_thread = NULL;
-  free(thread);
-}
-
-void xbt_os_thread_mod_preinit(void)
-{
-  if (thread_mod_inited)
-    return;
-
-  main_thread = xbt_new(s_xbt_os_thread_t, 1);
-  main_thread->param = NULL;
-  main_thread->start_routine = NULL;
-
-  pthread_attr_init(&thread_attr);
-
-  thread_mod_inited = 1;
-}
-
-void xbt_os_thread_mod_postexit(void)
-{
-  free(main_thread);
-  main_thread = NULL;
-  thread_mod_inited = 0;
-}
-
-/** Calls pthread_atfork() if present, and raise an exception otherwise.
- *
- * The only known user of this wrapper is mmalloc_preinit(), but it is absolutely mandatory there:
- * when used with tesh, mmalloc *must* be mutex protected and resistant to forks.
- * This functionality is the only way to get it working (by ensuring that the mutex is consistently released on forks)
- */
-
-/* this function is critical to tesh+mmalloc, don't mess with it */
-int xbt_os_thread_atfork(void (*prepare)(void), void (*parent)(void), void (*child)(void))
-{
-  return pthread_atfork(prepare, parent, child);
-}
-
-static void *wrapper_start_routine(void *s)
-{
-  xbt_os_thread_t t = s;
-
-  return t->start_routine(t->param);
-}
-
-xbt_os_thread_t xbt_os_thread_create(pvoid_f_pvoid_t start_routine, void* param)
-{
-  xbt_os_thread_t res_thread = xbt_new(s_xbt_os_thread_t, 1);
-  res_thread->start_routine = start_routine;
-  res_thread->param = param;
-
-  int errcode = pthread_create(&(res_thread->t), &thread_attr, wrapper_start_routine, res_thread);
-  xbt_assert(errcode == 0, "pthread_create failed: %s", strerror(errcode));
-
-  return res_thread;
-}
-
-/** Bind the thread to the given core, if possible.
- *
- * If pthread_setaffinity_np is not usable on that (non-gnu) platform, this function does nothing.
- */
-int xbt_os_thread_bind(XBT_ATTRIB_UNUSED xbt_os_thread_t thread, XBT_ATTRIB_UNUSED int cpu)
-{
-  int errcode = 0;
-#if HAVE_PTHREAD_SETAFFINITY
-  pthread_t pthread = thread->t;
-  cpu_set_t cpuset;
-  CPU_ZERO(&cpuset);
-  CPU_SET(cpu, &cpuset);
-  errcode = pthread_setaffinity_np(pthread, sizeof(cpu_set_t), &cpuset);
-#endif
-  return errcode;
-}
-
-void xbt_os_thread_setstacksize(int stack_size)
-{
-  size_t alignment[] = {
-    xbt_pagesize,
-#ifdef PTHREAD_STACK_MIN
-    PTHREAD_STACK_MIN,
-#endif
-    0
-  };
-
-  xbt_assert(stack_size >= 0, "stack size %d is negative, maybe it exceeds MAX_INT?", stack_size);
-
-  size_t sz = stack_size;
-  int res = pthread_attr_setstacksize(&thread_attr, sz);
-
-  for (int i = 0; res == EINVAL && alignment[i] > 0; i++) {
-    /* Invalid size, try again with next multiple of alignment[i]. */
-    size_t rem = sz % alignment[i];
-    if (rem != 0 || sz == 0) {
-      size_t sz2 = sz - rem + alignment[i];
-      XBT_DEBUG("pthread_attr_setstacksize failed for %zu, try again with %zu", sz, sz2);
-      sz = sz2;
-      res = pthread_attr_setstacksize(&thread_attr, sz);
-    }
-  }
-
-  if (res == EINVAL)
-    XBT_WARN("invalid stack size (maybe too big): %zu", sz);
-  else if (res != 0)
-    XBT_WARN("unknown error %d in pthread stacksize setting: %zu", res, sz);
-}
-
-void xbt_os_thread_setguardsize(int guard_size)
-{
-#ifdef WIN32
-  THROW_UNIMPLEMENTED; //pthread_attr_setguardsize is not implemented in pthread.h on windows
-#else
-  size_t sz = guard_size;
-  int res = pthread_attr_setguardsize(&thread_attr, sz);
-  if (res)
-    XBT_WARN("pthread_attr_setguardsize failed (%d) for size: %zu", res, sz);
-#endif
-}
-
-void xbt_os_thread_join(xbt_os_thread_t thread, void **thread_return)
-{
-  int errcode = pthread_join(thread->t, thread_return);
-
-  xbt_assert(errcode==0, "pthread_join failed: %s", strerror(errcode));
-  xbt_os_thread_free_thread_data(thread);
-}
-
-void xbt_os_thread_exit(int *retval)
-{
-  pthread_exit(retval);
-}
-
 /****** mutex related functions ******/
 typedef struct xbt_os_mutex_ {
   pthread_mutex_t m;