Aspect-based implementation of fast breakpoints added (optional).

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1685 8c4709b5-6ec9-48aa-a5cd-a96041d1645a

src/core/sal/perf/BufferInterface.hpp

@@ -0,0 +1,42 @@
+#ifndef __BUFFER_INTERFACE_HPP__
+  #define __BUFFER_INTERFACE_HPP__
+
+#include <cstddef>
+
+namespace fail {
+
+typedef std::size_t index_t; //!< the index type of elements, stored in the buffer-list
+const index_t INVALID_INDEX = static_cast<index_t>(-1); //!< a constant, representing an invalid idx
+
+/**
+ * \class PerfBufferBase
+ *
+ * Generic performance data structure for storing often used listener objects
+ * (This class can be seen as a "fast, type specific buffer-list".)
+ */
+class PerfBufferBase {
+public:
+	/**
+	 * Adds the index \c idx to the performance buffer-list.
+	 * @param idx the element to be added
+	 */
+	virtual void add(index_t idx) = 0;
+	/**
+	 * Removes the specified index \c idx.
+	 * @param idx the element to be deleted
+	 */
+	virtual void remove(index_t idx) = 0;
+	/**
+	 * Removes all elements from the perf. buffer-list.
+	 */
+	virtual void clear() = 0;
+	/**
+	 * Retrieves the number of elements in this data structure.
+	 * @return the number of elements in the perf. buffer-list
+	 */
+	virtual std::size_t size() const = 0;
+};
+
+} // end-of-namespace: fail
+
+#endif // __BUFFER_INTERFACE_HPP__