Add helper to set a json integer and then delete its entry from the json

src/ckpool.c

@@ -1051,6 +1051,16 @@ out:
 	return ret;
 }
 
+bool json_getdel_int(int *store, json_t *val, const char *res)
+{
+	bool ret;
+
+	ret = json_get_int(store, val, res);
+	if (ret)
+		json_object_del(val, res);
+	return ret;
+}
+
 static void parse_btcds(ckpool_t *ckp, const json_t *arr_val, const int arr_size)
 {
 	json_t *val;

src/ckpool.h

@@ -227,5 +227,6 @@ bool json_get_int64(int64_t *store, const json_t *val, const char *res);
 bool json_get_int(int *store, const json_t *val, const char *res);
 bool json_get_double(double *store, const json_t *val, const char *res);
 bool json_get_bool(bool *store, const json_t *val, const char *res);
+bool json_getdel_int(int *store, json_t *val, const char *res);
 
 #endif /* CKPOOL_H */