idnode prop: added floating point (double) property

src/idnode.c

@@ -398,6 +398,7 @@ idnode_cmp_sort
           return u32b - u32a;
       }
       break;
+    case PT_DBL:
     case PT_BOOL:
       // TODO
       break;

src/prop.c

@@ -58,6 +58,7 @@ const static struct strtab typetab[] = {
   { "str",   PT_STR },
   { "u16",   PT_U16 },
   { "u32",   PT_U32 },
+  { "dbl",   PT_DBL },
 };
 
 
@@ -150,6 +151,14 @@ prop_write_values(void *obj, const property_t *pl, htsmsg_t *m, int optmask)
       }
       break;
     }
+    case TO_FROM(PT_DBL, HMF_DBL): {
+      double *val = v;
+      if (*val != f->hmf_dbl) {
+        *val = f->hmf_dbl;
+        save = 1;
+      }
+      break;
+    }
     }
   }
   return save;
@@ -196,6 +205,9 @@ prop_read_value
       htsmsg_add_str(m, name, s);
     }
     break;
+  case PT_DBL:
+    htsmsg_add_dbl(m, name, *(double*)val);
+    break;
   }
 }
 

src/prop.h

@@ -33,6 +33,7 @@ typedef enum {
   PT_INT,
   PT_U16,
   PT_U32,
+  PT_DBL,
 } prop_type_t;
 
 /*