* There was a problem with ordered-by-user for XML children that appeared in so\

me circumstances and difficult to trigger. Entries entered by the user did not \
appear in the order they were entered. This should now be fixed by adding an enumeration to xml children for sorting ordered by user properly
This commit is contained in:
Olof Hagsand 2019-02-27 18:11:52 +01:00
parent ceb5df2050
commit ff3ff0daa9
6 changed files with 63 additions and 9 deletions

View file

@ -249,7 +249,7 @@ clicon_log_str(int level,
* @code
clicon_log(LOG_NOTICE, "%s: dump to dtd not supported", __PROGRAM__);
* @endcode
* @see cicon_log_init and clicon_log_str
* @see clicon_log_init and clicon_log_str
*/
int
clicon_log(int level,

View file

@ -122,12 +122,14 @@ struct xml{
int x_childvec_len;/* length of vector */
enum cxobj_type x_type; /* type of node: element, attribute, body */
char *x_value; /* attribute and body nodes have values */
int _x_vector_i; /* internal use: xml_child_each */
int x_flags; /* Flags according to XML_FLAG_* */
yang_stmt *x_spec; /* Pointer to specification, eg yang, by
reference, dont free */
cg_var *x_cv; /* Cached value as cligen variable
(eg xml_cmp) */
int _x_vector_i; /* internal use: xml_child_each */
int _x_i; /* internal use for sorting:
see xml_enumerate and xml_cmp */
};
/*
@ -1057,6 +1059,43 @@ xml_rootchild_node(cxobj *xp,
return retval;
}
/*! help function to sorting: enumerate all children according to present order
* This is so that the child itself know its present order in a list.
* When sorting by "ordered by user", the order should remain in its present
* state.
* A child can always compute its order functionally but it computes
* more cycles,..
* @param[in] xp Enumerate its children
* @retval 0 OK
* @see xml_sort
* @see xml_enumerate_get Call to the child to get the number
*/
int
xml_enumerate_children(cxobj *xp)
{
cxobj *x = NULL;
int i = 0;
while ((x = xml_child_each(xp, x, -1)) != NULL)
x->_x_i = i++;
return 0;
}
/*! Get the enumeration of a single child set by enumeration of parent
* @see xml_children_enumerate
* @note that it has to be called right after xml_children_enumerate. If not,
* there are many cases where this info is stale.
* @param[in] x A child whose parent has enumerated its children
* @retval n Enumeration
* @see xml_enumerate_children Call to the parent to compute the nr
*/
int
xml_enumerate_get(cxobj *x)
{
return x->_x_i;
}
/*! Get the first sub-node which is an XML body.
* @param[in] xn xml tree node
* @retval The returned body as a pointer to the name string
@ -2278,7 +2317,6 @@ clicon_log_xml(int level,
return retval;
}
/*
* Turn this on to get a xml parse and pretty print test program
* Usage: xpath

View file

@ -194,6 +194,7 @@ xml_child_spec(cxobj *x,
* @note args are pointer ot pointers, to fit into qsort cmp function
* @see xml_cmp1 Similar, but for one object
* @note empty value/NULL is smallest value
* @note xml_enumerate_children must have been called prior to this call
*/
static int
xml_cmp(const void* arg1,
@ -213,12 +214,19 @@ xml_cmp(const void* arg1,
char *keyname;
cg_var *cv1;
cg_var *cv2;
int nr1;
int nr2;
assert(x1&&x2);
if (x1==NULL || x2==NULL)
return 0; /* shouldnt happen */
y1 = xml_spec(x1);
y2 = xml_spec(x2);
if (y1==NULL || y2==NULL)
return 0; /* just ignore */
nr1 = xml_enumerate_get(x1);
nr2 = xml_enumerate_get(x2);
if (y1==NULL || y2==NULL){
equal = nr1-nr2;
return equal;
}
if (y1 != y2){
yi1 = yang_order(y1);
yi2 = yang_order(y2);
@ -230,8 +238,10 @@ xml_cmp(const void* arg1,
* otherwise sort according to key
*/
if (yang_config(y1)==0 ||
yang_find((yang_node*)y1, Y_ORDERED_BY, "user") != NULL)
return 0; /* Ordered by user or state data : maintain existing order */
yang_find((yang_node*)y1, Y_ORDERED_BY, "user") != NULL){
equal = nr1-nr2;
return equal; /* Ordered by user or state data : maintain existing order */
}
switch (y1->ys_keyword){
case Y_LEAF_LIST: /* Match with name and value */
if ((b1 = xml_body(x1)) == NULL)
@ -358,6 +368,7 @@ xml_sort(cxobj *x,
/* Abort sort if non-config (=state) data */
if ((ys = xml_spec(x)) != 0 && yang_config(ys)==0)
return 1;
xml_enumerate_children(x);
qsort(xml_childvec_get(x), xml_child_nr(x), sizeof(cxobj *), xml_cmp);
return 0;
}
@ -642,6 +653,7 @@ xml_sort_verify(cxobj *x0,
retval = 1;
goto done;
}
xml_enumerate_children(x0);
while ((x = xml_child_each(x0, x, -1)) != NULL) {
if (xprev != NULL){ /* Check xprev <= x */
if (xml_cmp(&xprev, &x) > 0)