added event thread executor timeFunction showConstructDestruct timeStamp

pvDataApp/misc/timeStamp.cpp

@@ -0,0 +1,58 @@
+/* timeStamp.cpp */
+#include <epicsTime.h>
+#include "noDefaultMethods.h"
+#include "pvType.h"
+#include "timeStamp.h"
+
+namespace epics { namespace pvData { 
+
+static uint64 TS_EPOCH_SEC_PAST_1970=7305*86400;
+
+TimeStamp::TimeStamp(uint64 secondsPastEpoch,uint32 nanoSeconds)
+: secondsPastEpoch(secondsPastEpoch),nanoSeconds(nanoSeconds)
+{}
+
+TimeStamp::~TimeStamp() {}
+
+int64 TimeStamp::getEpicsSecondsPastEpoch()
+{
+    return secondsPastEpoch - TS_EPOCH_SEC_PAST_1970;
+}
+
+void TimeStamp::put(uint64 seconds,uint32 nano)
+{
+    secondsPastEpoch = seconds;
+    nanoSeconds = nano;    
+}
+
+void TimeStamp::getCurrent()
+{
+    epicsTimeStamp epicsTime;
+    epicsTimeGetCurrent(&epicsTime);
+    secondsPastEpoch = epicsTime.secPastEpoch;
+    secondsPastEpoch += TS_EPOCH_SEC_PAST_1970;
+    nanoSeconds = epicsTime.nsec;
+}
+
+double TimeStamp::diffInSeconds(TimeStamp *left,TimeStamp *right)
+{
+    double diff = left->secondsPastEpoch - right->secondsPastEpoch;
+    int64 nano =left->nanoSeconds - right->nanoSeconds;
+    diff += ((double)nano)/1e9;
+    return diff;
+}
+
+int64 TimeStamp::getMilliseconds()
+{
+    return secondsPastEpoch*1000 + nanoSeconds/1000000;
+}
+
+void TimeStamp::put(int64 milliseconds)
+{
+    secondsPastEpoch = milliseconds/1000;
+    nanoSeconds = (milliseconds%1000)*1000000;
+}
+
+  
+
+}}