add elapsedTotalTime and compare with max acq.

ADOrcaApp/src/orca.cpp

@@ -783,10 +783,11 @@ void Orca::imageTask(){
     DCAMCAP_TRANSFERINFO captransferinfo;
     epicsTimeStamp prevAcqTime, currentAcqTime;
     epicsTimeStamp prev_trigger_time, current_trigger_time;
-    double elapsedTime;
+    epicsTimeStamp startTimeStamp;
+    double elapsedTime, elapsedTotalTime;
     int evr_counts = 0;
     double exposure_time, readout_time;
-
+    double maxAcqusitionTime;
     int triggerMode = DCAMPROP_TRIGGERSOURCE__INTERNAL;
 
     lock();
@@ -810,6 +811,7 @@ void Orca::imageTask(){
                 epicsThreadSleep(.1);
             }
             else {
+                epicsTimeGetCurrent(&startTimeStamp);
                 getIntegerParam(ADNumImages, &totalImages);
                 getIntegerParam(ADImageMode, &imageMode);
                 setIntegerParam(ADStatus, ADStatusAcquire);
@@ -828,7 +830,7 @@ void Orca::imageTask(){
         imageTransferStatus(m_hdcam, captransferinfo);
         lock();
 
-        if (prevAcquisitionCount < (uint64_t)captransferinfo.nFrameCount) {
+        if (prevAcquisitionCount < (uint64_t)captransferinfo.nFrameCount) { 
             printf("\nOrca Frame Count: %d\n", captransferinfo.nFrameCount);
             prevAcquisitionCount = captransferinfo.nFrameCount;
 
@@ -926,6 +928,12 @@ void Orca::imageTask(){
         }
 
         epicsTimeGetCurrent(&current_trigger_time);
+        if (imageMode == ADImageMultiple) {
+            elapsedTotalTime = epicsTimeDiffInSeconds(&current_trigger_time, &startTimeStamp);
+            elapsedTotalTime > maxAcqusitionTime) {
+               setStringParam(ADStatusMessage, "Acquisition taking too long!");
+            }
+        }
 
         if (epicsTimeDiffInSeconds(&current_trigger_time, &prev_trigger_time) > (exposure_time + readout_time)) {
             if ((evr_counts_since_last_start) > captransferinfo.nFrameCount ) {