timer and timeStamp added to misc. copyright and license info added

pvDataApp/misc/timer.h

@@ -0,0 +1,57 @@
+/* timer.h */
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * EPICS pvDataCPP is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+#ifndef TIMER_H
+#define TIMER_H
+#include <stddef.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "pvType.h"
+#include "thread.h"
+#include "noDefaultMethods.h"
+#include "showConstructDestruct.h"
+
+namespace epics { namespace pvData { 
+
+class TimerCallback {
+public:
+    virtual void callback() = 0;
+    virtual void timerStopped() = 0;
+};
+
+class TimerNode : private NoDefaultMethods {
+public:
+    static ConstructDestructCallback *getConstructDestructCallback();
+    static TimerNode *create(TimerCallback *timerCallback);
+    void destroy();
+    void cancel();
+    bool isScheduled();
+private:
+    TimerNode(TimerCallback *timerCallback);
+    ~TimerNode();
+    class TimerNodePvt *pImpl;
+    friend class Timer;
+};
+
+class Timer : private NoDefaultMethods {
+public:
+    static ConstructDestructCallback *getConstructDestructCallback();
+    static Timer * create(String threadName, ThreadPriority priority);
+    void destroy();
+    void scheduleAfterDelay(TimerNode *timerNode,double delay);
+    void schedulePeriodic(TimerNode *timerNode,double delay,double period);
+private:
+    Timer(String threadName, ThreadPriority priority);
+    ~Timer();
+    class TimerPvt *pImpl;
+    friend class TimerNode;
+};
+
+}}
+#endif  /* TIMER_H */