Changeset 281 in Sophya for trunk/SophyaLib

Timestamp:

Apr 29, 1999, 2:39:34 PM (26 years ago)

Author:

ansari

Message:

comptage de refs simple

File:

• trunk/SophyaLib/BaseTools/rcptr.h (modified) (3 diffs)

trunk/SophyaLib/BaseTools/rcptr.h

@@ -19 +19 @@
 // the object is destroyed when the last Xp is destroyed.
 
-#include <list>
-
 template <class T>
 class RCPtr {
@@ -26 +24 @@
   RCPtr(T* obj) {
     x = obj;
+    cnt = new int;
+    *cnt = 1;
   }
   
   RCPtr(RCPtr<T> const& other) {
-    peers = other.peers;
     x = other.x;
-    peers.push_back((RCPtr<T>*)&other);
-    for (peerlist::iterator i = peers.begin();
-         i != peers.end(); i++) {
-      (*i)->hello(this);
-    }
+    cnt = other.cnt;
+    (*cnt)++;
   }
   
   ~RCPtr() {
-    for (peerlist::iterator i = peers.begin();
-         i != peers.end(); i++) {
-      (*i)->byebye(this);
+    (*cnt)--;
+    if (!*cnt) {
+      delete x;
+      delete cnt;
     }
-    if (peers.size() == 0) delete x;
   }
 
@@ -50 +46 @@
 
 private:
-  typedef list<RCPtr<T>*> peerlist;
-
   T* x;                  // the object we are referring
-  peerlist peers;        // the other smart pointers to the same object
-
-  void hello(RCPtr<T>* newcomer) {
-    peers.push_back(newcomer);
-  }
-
-  void byebye(RCPtr<T>* dying) {
-    peers.remove(dying);
-  }
+  int* cnt;              // how many smart pointers ?
 };