X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/c912b7d6e75473bd05731ccf77f3e2d82afb7802..3823e54e6b0da3c0b213c3ba1537befca354d647:/src/xbt/mallocator.c

diff --git a/src/xbt/mallocator.c b/src/xbt/mallocator.c
index ed415a5ed7..285c8461ba 100644
--- a/src/xbt/mallocator.c
+++ b/src/xbt/mallocator.c
@@ -62,13 +62,14 @@ xbt_mallocator_t xbt_mallocator_new(int size,
   if (MALLOCATOR_IS_ENABLED) {
     m->objects = xbt_new0(void *, size);
     m->max_size = size;
+    m->mutex = xbt_os_mutex_init();
   } else {
     if (!MALLOCATOR_IS_WANTED) /* Warn to avoid to commit debugging settings */
       XBT_WARN("Mallocator is disabled!");
     m->objects = NULL;
     m->max_size = 0;
+    m->mutex = NULL;
   }
-
   return m;
 }
 
@@ -92,6 +93,7 @@ void xbt_mallocator_free(xbt_mallocator_t m)
     m->free_f(m->objects[i]);
   }
   xbt_free(m->objects);
+  xbt_os_mutex_destroy(m->mutex);
   xbt_free(m);
 }
 
@@ -116,6 +118,7 @@ void *xbt_mallocator_get(xbt_mallocator_t m)
   void *object;
 
   if (MALLOCATOR_IS_ENABLED) {
+    xbt_os_mutex_acquire(m->mutex);
     if (m->current_size <= 0) {
       /* No object is ready yet. Create a bunch of them to try to group the
        * mallocs on the same memory pages (to help the cache lines) */
@@ -133,6 +136,7 @@ void *xbt_mallocator_get(xbt_mallocator_t m)
     /* XBT_DEBUG("Reuse an old object for mallocator %p (size:%d/%d)", */
     /*           m, m->current_size, m->max_size); */
     object = m->objects[--m->current_size];
+    xbt_os_mutex_release(m->mutex);
   } else {
     object = m->new_f();
   }
@@ -157,16 +161,23 @@ void *xbt_mallocator_get(xbt_mallocator_t m)
  */
 void xbt_mallocator_release(xbt_mallocator_t m, void *object)
 {
-  if (m->current_size < m->max_size) {
-    /* there is enough place to push the object */
-    /* XBT_DEBUG
-        ("Store deleted object in mallocator %p for further use (size:%d/%d)",
+  if (MALLOCATOR_IS_ENABLED) {
+    xbt_os_mutex_acquire(m->mutex);
+    if (m->current_size < m->max_size) {
+      /* there is enough place to push the object */
+      /* XBT_DEBUG
+         ("Store deleted object in mallocator %p for further use (size:%d/%d)",
          m, m->current_size, m->max_size); */
-    m->objects[m->current_size++] = object;
+      m->objects[m->current_size++] = object;
+      xbt_os_mutex_release(m->mutex);
+    } else {
+      xbt_os_mutex_release(m->mutex);
+      /* otherwise we don't have a choice, we must free the object */
+      /* XBT_DEBUG("Free deleted object: mallocator %p is full (size:%d/%d)", m,
+         m->current_size, m->max_size); */
+      m->free_f(object);
+    }
   } else {
-    /* otherwise we don't have a choice, we must free the object */
-    /* XBT_DEBUG("Free deleted object: mallocator %p is full (size:%d/%d)", m,
-           m->current_size, m->max_size); */
     m->free_f(object);
   }
 }