SICS-593: Return 0 from the AsconReading state to ensure that SICS

progresses through tasks.

site_ansto/hardsup/sct_galilprot.c

@@ -41,6 +41,21 @@ int GalilReading(Ascon *a) {
   char chr, ch[2];
 
   ret = AsconReadChar(a->fd, &chr);
+  if (ret > 0) {
+    a->start = DoubleTime();
+  } else if (ret < 0) {
+    AsconError(a, "ASC5", errno)
+    return 0;
+  } else if (ret == 0) {
+    if (a->timeout > 0) {
+      if (DoubleTime() - a->start > a->timeout) {
+        AsconError(a, "read timeout", 0);
+        /* a->state = AsconTimeout; */
+      }
+    }
+    return 0;
+  }
+    
   switch (chr) {
     case ' ':
       return AsconStdHandler(a);
@@ -52,12 +67,12 @@ int GalilReading(Ascon *a) {
       a->state = AsconWriteStart;
       a->responseValid=0;
       a->wrPos = 0;
-      return 1;
+      return 0;
       break;
     case ':':
       DynStringReplace(a->rdBuffer, "OK",0);
       a->state = AsconReadDone;
-      return 1;
+      return 0;
       break;
     default:
       /* Check for first digit of errorcode followed by error message */
@@ -68,9 +83,10 @@ int GalilReading(Ascon *a) {
         DynStringInsert(a->rdBuffer, ch, 0);
         a->state = AsconReadDone;
         AsconError(a, GetCharArray(a->rdBuffer), 0);
-        return 1;
+        return 0;
       }
   }
+  /* Return 1 to read next char befor progressing to next task */
   return 1;
 }