X-Git-Url: https://git.sommitrealweird.co.uk/onak.git/blobdiff_plain/4b8483ae278577a3adc8d84da81d77019704466f..d27407c824b63bd0b9c78479453c3ce4799afac8:/ll.h diff --git a/ll.h b/ll.h index 3890ca9..464f99b 100644 --- a/ll.h +++ b/ll.h @@ -50,13 +50,35 @@ struct ll { struct ll *lladd(struct ll *curll, void *object); /** + * lladdend - Add an item to the end of a linked list. + * @curll: The list to add to. Can be NULL to create a new list. + * @object: The object to add. * + * Returns a pointer to the head of the new list. + */ +struct ll *lladdend(struct ll *curll, void *object); + +/** + * lldel - Remove an item from a linked list. + * @curll: The list to remove the item from. + * @object: The object to remove. + * @objectcmp: A pointer to a comparision function for the object type. + * + * Trawls through the list looking for the object. If it's found then it + * is removed from the list. Only one occurance is searched for. Returns + * a pointer to the head of the new list. */ struct ll *lldel(struct ll *curll, void *object, int (*objectcmp) (const void *object1, const void *object2)); /** + * llfind - Find an item in a linked list. + * @curll: The list to look in. + * @object: The object to look for. + * @objectcmp: A pointer to a comparision function for the object type. * + * Searches through a list for an object. Returns a pointer to the object + * if it's found, otherwise NULL. */ struct ll *llfind(struct ll *curll, void *object, int (*objectcmp) (const void *object1, const void *object2)); @@ -69,4 +91,15 @@ struct ll *llfind(struct ll *curll, void *object, */ unsigned long llsize(struct ll *curll); +/** + * llfree - Frees a linked list. + * @curll: The list to free. + * @objectfree: A pointer to a free function for the object. + * + * Walks through a list and free it. If a function is provided for + * objectfree then it's called for each element to free them, if it's NULL + * just the list is freed. + */ +void llfree(struct ll *curll, void (*objectfree) (void *object)); + #endif /* __LL_H__ */