Avoid memcpy while retrieving data from dynars (speed up)

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

diff --git a/src/xbt/dynar.c b/src/xbt/dynar.c
index ad9b0f3..ca57b58 100644 (file)
--- a/src/xbt/dynar.c
+++ b/src/xbt/dynar.c
@@ -90,7 +90,7 @@ _gras_dynar_expand(gras_dynar_t * const dynar,
 static _GRAS_INLINE
 void *
 _gras_dynar_elm(const gras_dynar_t * const dynar,
-                const unsigned long               idx) {
+                  const unsigned long        idx) {
   char * const data    = dynar->data;
   const unsigned long elmsize = dynar->elmsize;
 
@@ -217,6 +217,26 @@ gras_dynar_length(const gras_dynar_t * const dynar) {
   return (dynar ? (unsigned long) dynar->used : (unsigned long)0);
 }
 
+/**
+ * gras_dynar_get_cpy:
+ * @dynar: information dealer
+ * @idx: index of the slot we want to retrive
+ * @dst: where to pu the result to.
+ *
+ * Retrieve a copy of the Nth element of a dynar.
+ */
+void
+gras_dynar_get_cpy(const gras_dynar_t * const dynar,
+                  const int                  idx,
+                  void               * const dst) {
+
+  __sanity_check_dynar(dynar);
+  __sanity_check_idx(idx);
+  __check_inbound_idx(dynar, idx);
+
+  _gras_dynar_get_elm(dst, dynar, idx);
+}
+
 /**
  * gras_dynar_get:
  * @dynar: information dealer
@@ -226,16 +246,15 @@ gras_dynar_length(const gras_dynar_t * const dynar) {
  * Retrieve the Nth element of a dynar. Warning, the returned value is the actual content of 
  * the dynar. Make a copy before fooling with it.
  */
-void
-gras_dynar_get(const gras_dynar_t * const dynar,
-               const int                  idx,
-               void               * const dst) {
+void*
+gras_dynar_get_ptr(const gras_dynar_t * const dynar,
+                  const int                  idx) {
 
   __sanity_check_dynar(dynar);
   __sanity_check_idx(idx);
   __check_inbound_idx(dynar, idx);
 
-  _gras_dynar_get_elm(dst, dynar, idx);
+  return _gras_dynar_elm(dynar, idx);
 }
 
 /**