_xbt_clear_mem is used only once. Use memset directly.

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

diff --git a/src/xbt/dynar.c b/src/xbt/dynar.c
index 7ac54ddc45aba91f75ece6326f1fe5a71095495b..85687a2e59fb882326a0851f3d543b061ffac64c 100644 (file)
--- a/src/xbt/dynar.c
+++ b/src/xbt/dynar.c
@@ -75,9 +75,12 @@ static XBT_INLINE void _check_populated_dynar(xbt_dynar_t dynar)
 static void _dynar_map(const xbt_dynar_t dynar, void_f_pvoid_t const op);
 
 static XBT_INLINE
-    void _xbt_clear_mem(void *const ptr, const unsigned long length)
+void _xbt_dynar_resize(xbt_dynar_t dynar, unsigned long new_size)
 {
-  memset(ptr, 0, length);
+  if (new_size != dynar->size) {
+    dynar->size = new_size;
+    dynar->data = xbt_realloc(dynar->data, new_size * dynar->elmsize);
+  }
 }
 
 static XBT_INLINE
@@ -86,21 +89,10 @@ static XBT_INLINE
   const unsigned long old_size = dynar->size;
 
   if (nb > old_size) {
-    void *const old_data = dynar->data;
-    const unsigned long elmsize = dynar->elmsize;
-    const unsigned long old_length = old_size * elmsize;
-
     const unsigned long expand = 2 * (old_size + 1);
-    const unsigned long new_size = (nb > expand ? nb : expand);
-    const unsigned long new_length = new_size * elmsize;
-    void *const new_data = xbt_realloc(old_data, new_length);
-
-    XBT_DEBUG("expand %p from %lu to %lu elements", dynar, old_size, new_size);
-
-    _xbt_clear_mem((char *)new_data + old_length, new_length - old_length);
-
-    dynar->size = new_size;
-    dynar->data = new_data;
+    _xbt_dynar_resize(dynar, (nb > expand ? nb : expand));
+    XBT_DEBUG("expand %p from %lu to %lu elements",
+              dynar, old_size, dynar->size);
   }
 }
 
@@ -251,16 +243,9 @@ XBT_INLINE void xbt_dynar_reset(xbt_dynar_t const dynar)
   if (dynar->free_f) {
     _dynar_map(dynar, dynar->free_f);
   }
-  /*
-     free(dynar->data);
-
-     dynar->size = 0;
-   */
   dynar->used = 0;
 
   _dynar_unlock(dynar);
-
-  /*  dynar->data = NULL; */
 }
 
 /**
@@ -280,15 +265,8 @@ XBT_INLINE void xbt_dynar_reset(xbt_dynar_t const dynar)
  */
 void xbt_dynar_shrink(xbt_dynar_t dynar, int empty_slots_wanted)
 {
-  unsigned long size_wanted;
-
   _dynar_lock(dynar);
-
-  size_wanted = dynar->used + empty_slots_wanted;
-  if (size_wanted != dynar->size) {
-    dynar->size = size_wanted;
-    dynar->data = xbt_realloc(dynar->data, dynar->elmsize * dynar->size);
-  }
+  _xbt_dynar_resize(dynar, dynar->used + empty_slots_wanted);
   _dynar_unlock(dynar);
 }
 
@@ -374,24 +352,28 @@ XBT_INLINE void *xbt_dynar_get_ptr(const xbt_dynar_t dynar,
   return res;
 }
 
-XBT_INLINE void *xbt_dynar_set_at_ptr(const xbt_dynar_t dynar,
-                                      const unsigned long idx)
+/* not synchronized */
+static XBT_INLINE void *_xbt_dynar_set_at_ptr(const xbt_dynar_t dynar,
+                                              const unsigned long idx)
 {
-
-  void *res;
-  _dynar_lock(dynar);
   _sanity_check_dynar(dynar);
 
   if (idx >= dynar->used) {
     _xbt_dynar_expand(dynar, idx + 1);
-    _xbt_clear_mem(((char * const)dynar->data) + dynar->used * dynar->elmsize,
-                   (idx + 1 - dynar->used)*dynar->elmsize);
+    memset(((char * const)dynar->data) + dynar->used * dynar->elmsize, 0,
+           (idx + 1 - dynar->used)*dynar->elmsize);
     dynar->used = idx + 1;
   }
-  res = _xbt_dynar_elm(dynar, idx);
+  return _xbt_dynar_elm(dynar, idx);
+}
 
+XBT_INLINE void *xbt_dynar_set_at_ptr(const xbt_dynar_t dynar,
+                                      const unsigned long idx)
+{
+  void *res;
+  _dynar_lock(dynar);
+  res = _xbt_dynar_set_at_ptr(dynar, idx);
   _dynar_unlock(dynar);
-
   return res;
 }
 
@@ -399,17 +381,7 @@ static void XBT_INLINE          /* not synchronized */
 _xbt_dynar_set(xbt_dynar_t dynar,
                const unsigned long idx, const void *const src)
 {
-
-  _sanity_check_dynar(dynar);
-
-  if (idx >= dynar->used) {
-    _xbt_dynar_expand(dynar, idx + 1);
-    _xbt_clear_mem(((char * const)dynar->data) + dynar->used * dynar->elmsize,
-                   (idx + 1 - dynar->used)*dynar->elmsize);
-    dynar->used = idx + 1;
-  }
-
-  _xbt_dynar_put_elm(dynar, idx, src);
+  memcpy(_xbt_dynar_set_at_ptr(dynar, idx), src, dynar->elmsize);
 }
 
 /** @brief Set the Nth element of a dynar (expanded if needed). Previous value at this position is NOT freed