Change in libosmocore[master]: linuxlist: add llist_entry_empty()

lynxis lazus has uploaded this change for review. ( https://gerrit.osmocom.org/c/libosmocore/+/29792 ) Change subject: linuxlist: add llist_entry_empty() ...................................................................... linuxlist: add llist_entry_empty() Return true if an entry is not included in a llist or NULL. Change-Id: Ia4afe3e77f53728db1d139bded5925183dca011f --- M include/osmocom/core/linuxlist.h 1 file changed, 11 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/92/29792/1 diff --git a/include/osmocom/core/linuxlist.h b/include/osmocom/core/linuxlist.h index 2fc3fa7..398128d 100644 --- a/include/osmocom/core/linuxlist.h +++ b/include/osmocom/core/linuxlist.h @@ -171,6 +171,17 @@ return head->next == head; } +/*! + * Test whether a linked list entry is empty or not included by any list. + * \param[in] entry the llist to test + * \return 1 if the entry is NULL or not included by any llist. + */ +static inline int llist_entry_empty(const struct llist_head *entry) +{ + return entry == NULL || (!entry->next && !entry->prev) + || (entry->next == LLIST_POISON1 && entry->prev == LLIST_POISON2); +} + static inline void __llist_splice(struct llist_head *llist, struct llist_head *head) { -- To view, visit https://gerrit.osmocom.org/c/libosmocore/+/29792 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: libosmocore Gerrit-Branch: master Gerrit-Change-Id: Ia4afe3e77f53728db1d139bded5925183dca011f Gerrit-Change-Number: 29792 Gerrit-PatchSet: 1 Gerrit-Owner: lynxis lazus <lynxis(a)fe80.eu> Gerrit-MessageType: newchange