Diff: ble/CallChainOfFunctionPointersWithContext.h

Revision:

921:ea542e6519bb

Parent:

920:d18cff0c4b09

Child:

928:624793511b25

--- a/ble/CallChainOfFunctionPointersWithContext.h	Thu Nov 26 12:52:04 2015 +0000
+++ b/ble/CallChainOfFunctionPointersWithContext.h	Thu Nov 26 12:52:04 2015 +0000
@@ -97,6 +97,42 @@
         return common_add(new FunctionPointerWithContext<ContextType>(tptr, mptr));
     }
 
+    /** Add a function at the front of the chain.
+     *
+     *  @param func The FunctionPointerWithContext to add.
+     */
+    void add(const FunctionPointerWithContext<ContextType>& func) {
+        common_add(new FunctionPointerWithContext<ContextType>(func));
+    }
+
+    /** 
+     * Detach a function pointer from a callchain
+     * 
+     * @oaram toDetach FunctionPointerWithContext to detach from this callchain
+     * 
+     * @return true if a function pointer has been detached and false otherwise
+     */ 
+    void detach(const FunctionPointerWithContext<ContextType>& toDetach) { 
+        pFunctionPointerWithContext_t current = chainHead;
+        pFunctionPointerWithContext_t previous = NULL;
+
+        while (current) {
+            if(*current == toDetach) { 
+                if(previous == NULL) { 
+                    chainHead = current->getNext();
+                } else {
+                    previous->chainAsNext(current->getNext());
+                }
+                delete current;
+                return true;
+            }
+
+            previous = current;
+            current = current->getNext();
+        }
+        return false;
+    }
+
     /** Clear the call chain (remove all functions in the chain).
      */
     void clear(void) {
@@ -125,6 +161,29 @@
         }
     }
 
+    /**
+     * @brief same as above but const 
+     */
+    void call(ContextType context) const {
+        if (chainHead) {
+            chainHead->call(context);
+        }
+    }
+
+    /**
+     * @brief same as above but with function call operator
+     */
+    void operator()(ContextType context) const {
+        call(context);
+    }
+
+    typedef void (CallChainOfFunctionPointersWithContext::*bool_type)() const;
+    void True() const {}
+
+    operator bool_type() const {
+        return chainHead == NULL ? 0 : &CallChainOfFunctionPointersWithContext::True;
+    }
+
 private:
     pFunctionPointerWithContext_t common_add(pFunctionPointerWithContext_t pf) {
         if (chainHead == NULL) {