Modified backend exit strategy so that 2nd ^C actually exits

Copied creator cvec if modified with REPLACE

CHANGELOG.md

@@ -64,6 +64,7 @@ Developers may need to change their code
 
 ### Minor features
 
+* Modified backend exit strategy so that 2nd ^C actually exits
 * Performance: A change in the `merge` code made "co-located" config and non-config get retrieval go considerable faster. This is done by a specialized `xml_child_each_attr()` function.
 * CLI: Added `show statistics` example code for backend and CLI memory stats
 * [Support yang type union with are same subtypes with SNMP](https://github.com/clicon/clixon/pull/427)

apps/backend/backend_main.c

@@ -158,6 +158,8 @@ backend_sig_term(int arg)
     if (i++ == 0)
         clicon_log(LOG_NOTICE, "%s: %s: pid: %u Signal %d", 
                    __PROGRAM__, __FUNCTION__, getpid(), arg);
+    else
+        exit(1);
     clixon_exit_set(1); /* checked in clixon_event_loop() */
 }
 

lib/clixon/clixon_xml.h

@@ -232,6 +232,7 @@ int       xml_creator_add(cxobj *xn, char *name);
 int       xml_creator_rm(cxobj *xn, char *name);
 int       xml_creator_find(cxobj *xn, char *name);
 size_t    xml_creator_len(cxobj *xn);
+int       xml_creator_copy(cxobj *x0, cxobj *x1);
 int       xml_creator_print(FILE *f, cxobj *xn);
 
 char     *xml_value(cxobj *xn);

lib/src/clixon_datastore_write.c

@@ -188,8 +188,7 @@ check_body_namespace(cxobj     *x0,
     if (ns0 != NULL && ns1 != NULL){  /* namespace exists in both x1 and x0 */
         if (strcmp(ns0, ns1)){
             /* prefixes in x1 and x0 refers to different namespaces 
-             * XXX return netconf error instead 
+             * XXX return netconf error instead bad-attribue?
-bad-attribue?
              */
             if ((cberr = cbuf_new()) == NULL){
                 clicon_err(OE_UNIX, errno, "cbuf_new");
@@ -848,6 +847,8 @@ text_modify(clicon_handle       h,
 #ifdef XML_PARENT_CANDIDATE
                 xml_parent_candidate_set(x0, x0p);
 #endif
+                if (xml_creator_copy(x1, x0) < 0)
+                    goto done;
                 changed++;
                 /* Get namespace from x1
                  * Check if namespace exists in x0 parent

lib/src/clixon_xml.c

@@ -705,6 +705,29 @@ xml_creator_len(cxobj *xn)
         return 0;
 }
 
+/*! Copy creator info from x0 to x1
+ *
+ * @param[in]  x0  Source XML node
+ * @param[in]  x1  Destination XML node
+ * @retval     0   OK
+ * @retval    -1   Error
+ */
+int
+xml_creator_copy(cxobj *x0, 
+                 cxobj *x1)
+{
+    int retval = -1;
+    
+    if (x0->x_creators)
+        if ((x1->x_creators = cvec_dup(x0->x_creators)) == NULL){
+            clicon_err(OE_UNIX, errno, "cvec_dup");
+            goto done;
+        }
+    retval = 0;
+ done:
+    return retval;
+}
+
 /*! Print XML and creator tags where they exists, apply help function
  *
  * @param[in]  x    XML tree
@@ -737,7 +760,7 @@ int
 xml_creator_print(FILE  *f,
                   cxobj *xn)
 {
-    return xml_apply(xn, CX_ELMNT, creator_print_fn, f);
+    return xml_apply0(xn, CX_ELMNT, creator_print_fn, f);
 }
 
 /*! Get value of xnode
@@ -2079,11 +2102,8 @@ xml_copy_one(cxobj *x0,
     switch (xml_type(x0)){
     case CX_ELMNT:
         xml_spec_set(x1, xml_spec(x0));
-        if (x0->x_creators)
+        if (xml_creator_copy(x0, x1) < 0)
-            if ((x1->x_creators = cvec_dup(x0->x_creators)) == NULL){
-                clicon_err(OE_UNIX, errno, "cvec_dup");
             goto done;
-            }
         break;
     case CX_BODY:
     case CX_ATTR: