diff options
Diffstat (limited to 'utils.c')
-rw-r--r-- | utils.c | 55 |
1 files changed, 55 insertions, 0 deletions
@@ -0,0 +1,55 @@ +#include <libubox/avl.h> +#include <libubox/avl-cmp.h> +#include "utils.h" + +void +__blobmsg_list_init(struct blobmsg_list *list, int offset, int len) +{ + avl_init(&list->avl, avl_strcmp, false, NULL); + list->node_offset = offset; + list->node_len = len; +} + +int +blobmsg_list_fill(struct blobmsg_list *list, void *data, int len) +{ + struct avl_tree *tree = &list->avl; + struct blobmsg_list_node *node; + struct blob_attr *cur; + void *ptr; + int count = 0; + int rem = len; + + __blob_for_each_attr(cur, data, rem) { + if (!blobmsg_check_attr(cur, true)) + continue; + + ptr = calloc(1, list->node_len); + if (!ptr) + return -1; + + node = (void *) ((char *)ptr + list->node_offset); + node->avl.key = blobmsg_name(cur); + node->data = cur; + if (avl_insert(tree, &node->avl)) { + free(ptr); + continue; + } + + count++; + } + + return count; +} + +void +blobmsg_list_free(struct blobmsg_list *list) +{ + struct blobmsg_list_node *node, *tmp; + void *ptr; + + avl_remove_all_elements(&list->avl, node, avl, tmp) { + ptr = ((char *) node - list->node_offset); + free(ptr); + } +} |