Implemented history writer

run_streamhub.sh

@@ -125,10 +125,10 @@ cat > "$HUB_CFG" <<EOF
 /**
  * StreamHub configuration — auto-generated by run_streamhub.sh
  *
- * Three sources matching the combined_test MARTe2 configuration:
- *   scalar  : 1 kHz scalar signals  (Counter, Time, Sine1, Sine2)
- *   arrays1 : 5 kHz packed arrays   (Ch1 FirstSample, Ch2 LastSample)
- *   arrays2 : 5 kHz FullArray       (Ch3, Ch4 with per-sample timestamps)
+ * Three sources matching the streamhub_demo MARTe2 configuration:
+ *   scalar  : 1 kHz scalar sines @ 1 ksps  (Sine1, Sine2)
+ *   med     : 1 kHz arrays @ 1 Msps        (Ch1, Ch2)
+ *   fast    : 5 kHz arrays @ 5 Msps        (Ch3, Ch4)
  */
 Hub = {
     WSPort        = ${WS_PORT}
@@ -137,21 +137,28 @@ Hub = {
     MaxPushPoints = 2000
     RingTemporal  = 1000000
     RingScalar    = 100000
+    +History = {
+        Directory      = "/tmp/streamhub_history"
+        DurationHours  = 1
+        Decimation     = 10
+        FlushIntervalSec = 5
+        MinDiskFreeMB  = 200
+    }
     Sources = {
         scalar = {
-            Label          = "Scalar Signals (1 kHz)"
+            Label          = "Scalar Sines (1 ksps)"
             Addr           = "127.0.0.1"
             Port           = 44500
             MulticastGroup = "239.0.0.1"
             DataPort       = 44503
         }
-        arrays1 = {
-            Label = "Array Signals First/Last (5 kHz)"
+        med = {
+            Label = "1 Msps Sines (Ch1 1kHz, Ch2 5kHz)"
             Addr  = "127.0.0.1"
             Port  = 44501
         }
-        arrays2 = {
-            Label = "Array Signals FullArray (5 kHz)"
+        fast = {
+            Label = "5 Msps Sines (Ch3 10kHz, Ch4 50kHz)"
             Addr  = "127.0.0.1"
             Port  = 44502
         }