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lib: simplify nb_cli_show_dnode_cmds

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Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
This commit is contained in:
Igor Ryzhov 2021-03-22 19:29:50 +03:00
parent 53ab0eacab
commit 634aa8253e
1 changed files with 19 additions and 56 deletions
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75
lib/northbound_cli.c
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@ -529,25 +529,6 @@ static int nb_cli_candidate_load_transaction(struct vty *vty,
return CMD_SUCCESS;
}
/*
* ly_iter_next_is_up: detects when iterating up on the yang model.
*
* This function detects whether next node in the iteration is upwards,
* then return the node otherwise return NULL.
*/
static struct lyd_node *ly_iter_next_up(const struct lyd_node *elem)
{
/* Are we going downwards? Is this still not a leaf? */
if (!(elem->schema->nodetype & (LYS_LEAF | LYS_LEAFLIST | LYS_ANYDATA)))
return NULL;
/* Are there still leaves in this branch? */
if (elem->next != NULL)
return NULL;
return elem->parent;
}
/* Prepare the configuration for display. */
void nb_cli_show_config_prepare(struct nb_config *config, bool with_defaults)
{
@ -569,51 +550,33 @@ void nb_cli_show_config_prepare(struct nb_config *config, bool with_defaults)
ly_native_ctx);
}
static void show_dnode_children_cmds(struct vty *vty, struct lyd_node *root,
bool with_defaults)
{
struct lyd_node *child;
LY_TREE_FOR (root->child, child)
nb_cli_show_dnode_cmds(vty, child, with_defaults);
}
void nb_cli_show_dnode_cmds(struct vty *vty, struct lyd_node *root,
bool with_defaults)
{
struct lyd_node *next, *child, *parent;
struct nb_node *nb_node;
LY_TREE_DFS_BEGIN (root, next, child) {
struct nb_node *nb_node;
if (!with_defaults && yang_dnode_is_default_recursive(root))
return;
nb_node = child->schema->priv;
if (!nb_node || !nb_node->cbs.cli_show)
goto next;
nb_node = root->schema->priv;
/* Skip default values. */
if (!with_defaults && yang_dnode_is_default_recursive(child))
goto next;
if (nb_node && nb_node->cbs.cli_show)
(*nb_node->cbs.cli_show)(vty, root, with_defaults);
(*nb_node->cbs.cli_show)(vty, child, with_defaults);
next:
/*
* When transiting upwards in the yang model we should
* give the previous container/list node a chance to
* print its close vty output (e.g. "!" or "end-family"
* etc...).
*/
parent = ly_iter_next_up(child);
if (parent != NULL) {
nb_node = parent->schema->priv;
if (nb_node && nb_node->cbs.cli_show_end)
(*nb_node->cbs.cli_show_end)(vty, parent);
}
if (!(root->schema->nodetype & (LYS_LEAF | LYS_LEAFLIST | LYS_ANYDATA)))
show_dnode_children_cmds(vty, root, with_defaults);
/*
* There is a possible path in this macro that ends up
* dereferencing child->parent->parent. We just null checked
* child->parent by checking (ly_iter_next_up(child) != NULL)
* above.
*
* I am not sure whether it is possible for the other
* conditions within this macro guarding the problem
* dereference to be satisfied when child->parent == NULL.
*/
#ifndef __clang_analyzer__
LY_TREE_DFS_END(root, next, child);
#endif
}
if (nb_node && nb_node->cbs.cli_show_end)
(*nb_node->cbs.cli_show_end)(vty, root);
}
static void nb_cli_show_config_cmds(struct vty *vty, struct nb_config *config,