Diff: source/core/MemberFunctionCallback.cpp

Revision:

1:8aa5cdb4ab67

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/source/core/MemberFunctionCallback.cpp	Thu Apr 07 01:33:22 2016 +0100
@@ -0,0 +1,58 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2016 British Broadcasting Corporation.
+This software is provided by Lancaster University by arrangement with the BBC.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+*/
+
+/**
+  * Class definition for a MemberFunctionCallback.
+  *
+  * C++ member functions (also known as methods) have a more complex
+  * representation than normal C functions. This class allows a reference to
+  * a C++ member function to be stored then called at a later date.
+  *
+  * This class is used extensively by the MicroBitMessageBus to deliver
+  * events to C++ methods.
+  */
+
+#include "MicroBitConfig.h"
+#include "MemberFunctionCallback.h"
+
+/**
+  * Calls the method reference held by this MemberFunctionCallback.
+  *
+  * @param e The event to deliver to the method
+  */
+void MemberFunctionCallback::fire(MicroBitEvent e)
+{
+    invoke(object, method, e);
+}
+
+/**
+  * A comparison of two MemberFunctionCallback objects.
+  *
+  * @return true if the given MemberFunctionCallback is equivalent to this one, false otherwise.
+  */
+bool MemberFunctionCallback::operator==(const MemberFunctionCallback &mfc)
+{
+    return (object == mfc.object && (memcmp(method,mfc.method,sizeof(method))==0));
+}