Implement reentrant mutexes in xbt_os_thread

[simgrid.git] / src / xbt / fifo.c

diff --git a/src/xbt/fifo.c b/src/xbt/fifo.c
index f2f95ca..89ab25f 100644 (file)
--- a/src/xbt/fifo.c
+++ b/src/xbt/fifo.c
@@ -36,13 +36,24 @@ xbt_fifo_t xbt_fifo_new(void)
  * Free the fifo structure. None of the objects that was in the fifo is however modified.
  */
 void xbt_fifo_free(xbt_fifo_t l)
+{
+  xbt_fifo_reset(l);
+  xbt_free(l);
+}
+
+/**
+ * \brief Makes a fifo empty.
+ * \param l a fifo
+ *
+ * None of the objects that was in the fifo is however modified.
+ */
+void xbt_fifo_reset(xbt_fifo_t l)
 {
   xbt_fifo_item_t b, tmp;
 
   for (b = xbt_fifo_get_first_item(l); b;
        tmp = b, b = b->next, xbt_fifo_free_item(tmp));
-  xbt_free(l);
-  return;
+  l->head = l->tail = NULL;
 }
 
 /** Push
@@ -132,7 +143,7 @@ void *xbt_fifo_shift(xbt_fifo_t l)
  */
 void xbt_fifo_push_item(xbt_fifo_t l, xbt_fifo_item_t new)
 {
-  xbt_assert0((new->next == NULL) && (new->prev == NULL), "Invalid item!");
+  xbt_assert((new->next == NULL) && (new->prev == NULL), "Invalid item!");
   (l->count)++;
   if (l->head == NULL) {
     l->head = new;
@@ -180,7 +191,7 @@ xbt_fifo_item_t xbt_fifo_pop_item(xbt_fifo_t l)
  */
 void xbt_fifo_unshift_item(xbt_fifo_t l, xbt_fifo_item_t new)
 {
-  xbt_assert0((new->next == NULL) && (new->prev == NULL), "Invalid item!");
+  xbt_assert((new->next == NULL) && (new->prev == NULL), "Invalid item!");
   (l->count)++;
   if (l->head == NULL) {
     l->head = new;
@@ -282,7 +293,7 @@ int xbt_fifo_remove_all(xbt_fifo_t l, void *t)
 void xbt_fifo_remove_item(xbt_fifo_t l, xbt_fifo_item_t current)
 {
   if (l->head == l->tail) {     /* special case */
-    xbt_assert0((current == l->head), "This item is not in the list!");
+    xbt_assert((current == l->head), "This item is not in the list!");
     l->head = NULL;
     l->tail = NULL;
     (l->count)--;
@@ -387,7 +398,7 @@ XBT_INLINE xbt_fifo_item_t xbt_fifo_new_item(void)
  */
 XBT_INLINE xbt_fifo_item_t xbt_fifo_newitem(void)
 {
-  WARN0("This function is deprecated. Use xbt_fifo_new_item.");
+  XBT_WARN("This function is deprecated. Use xbt_fifo_new_item.");
   return xbt_fifo_new_item();
 }
 
@@ -427,7 +438,7 @@ XBT_INLINE void xbt_fifo_free_item(xbt_fifo_item_t b)
  */
 XBT_INLINE void xbt_fifo_freeitem(xbt_fifo_item_t b)
 {
-  WARN0("This function is deprecated. Use xbt_fifo_free_item.");
+  XBT_WARN("This function is deprecated. Use xbt_fifo_free_item.");
   xbt_fifo_free_item(b);
   return;
 }
@@ -463,7 +474,7 @@ XBT_INLINE xbt_fifo_item_t xbt_fifo_get_last_item(xbt_fifo_t l)
  */
 XBT_INLINE xbt_fifo_item_t xbt_fifo_getFirstItem(xbt_fifo_t l)
 {
-  WARN0("This function is deprecated. Use xbt_fifo_get_first_item.");
+  XBT_WARN("This function is deprecated. Use xbt_fifo_get_first_item.");
   return xbt_fifo_get_first_item(l);
 }
 
@@ -482,7 +493,7 @@ XBT_INLINE xbt_fifo_item_t xbt_fifo_get_next_item(xbt_fifo_item_t i)
  */
 xbt_fifo_item_t xbt_fifo_getNextItem(xbt_fifo_item_t i)
 {
-  WARN0("This function is deprecated. Use xbt_fifo_get_next_item.");
+  XBT_WARN("This function is deprecated. Use xbt_fifo_get_next_item.");
   return xbt_fifo_get_next_item(i);
 }
 
@@ -501,21 +512,29 @@ XBT_INLINE xbt_fifo_item_t xbt_fifo_get_prev_item(xbt_fifo_item_t i)
  */
 xbt_fifo_item_t xbt_fifo_getPrevItem(xbt_fifo_item_t i)
 {
-  WARN0("This function is deprecated. Use xbt_fifo_get_prev_item.");
+  XBT_WARN("This function is deprecated. Use xbt_fifo_get_prev_item.");
   return xbt_fifo_get_prev_item(i);
 }
 
 /* Module init/exit handling the fifo item mallocator
  * These are internal XBT functions called by xbt_preinit/postexit().
+ * It can be used several times to recreate the mallocator, for example when you switch to MC mode
  */
-void xbt_fifo_preinit(void) {
-  item_mallocator = xbt_mallocator_new(256,
+void xbt_fifo_preinit(void)
+{
+  if (item_mallocator != NULL) {
+    /* Already created. I guess we want to switch to MC mode, so kill the previously created mallocator */
+    xbt_mallocator_free(item_mallocator);
+  }
+
+  item_mallocator = xbt_mallocator_new(65536,
                                        fifo_item_mallocator_new_f,
                                        fifo_item_mallocator_free_f,
                                        fifo_item_mallocator_reset_f);
 }
 
-void xbt_fifo_postexit(void) {
+void xbt_fifo_postexit(void)
+{
   if (item_mallocator != NULL) {
     xbt_mallocator_free(item_mallocator);
     item_mallocator = NULL;