diff options
Diffstat (limited to 'tools/perf/util/rblist.c')
| -rw-r--r-- | tools/perf/util/rblist.c | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/tools/perf/util/rblist.c b/tools/perf/util/rblist.c index a16cdd2625ad..0dfe27d99458 100644 --- a/tools/perf/util/rblist.c +++ b/tools/perf/util/rblist.c @@ -48,10 +48,12 @@ void rblist__remove_node(struct rblist *rblist, struct rb_node *rb_node) rblist->node_delete(rblist, rb_node); } -struct rb_node *rblist__find(struct rblist *rblist, const void *entry) +static struct rb_node *__rblist__findnew(struct rblist *rblist, + const void *entry, + bool create) { struct rb_node **p = &rblist->entries.rb_node; - struct rb_node *parent = NULL; + struct rb_node *parent = NULL, *new_node = NULL; while (*p != NULL) { int rc; @@ -67,7 +69,26 @@ struct rb_node *rblist__find(struct rblist *rblist, const void *entry) return parent; } - return NULL; + if (create) { + new_node = rblist->node_new(rblist, entry); + if (new_node) { + rb_link_node(new_node, parent, p); + rb_insert_color(new_node, &rblist->entries); + ++rblist->nr_entries; + } + } + + return new_node; +} + +struct rb_node *rblist__find(struct rblist *rblist, const void *entry) +{ + return __rblist__findnew(rblist, entry, false); +} + +struct rb_node *rblist__findnew(struct rblist *rblist, const void *entry) +{ + return __rblist__findnew(rblist, entry, true); } void rblist__init(struct rblist *rblist) |