diff options
Diffstat (limited to 'test_mini/libft/src/ht/ft_htset.c')
| -rw-r--r-- | test_mini/libft/src/ht/ft_htset.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/test_mini/libft/src/ht/ft_htset.c b/test_mini/libft/src/ht/ft_htset.c new file mode 100644 index 0000000..68d3752 --- /dev/null +++ b/test_mini/libft/src/ht/ft_htset.c @@ -0,0 +1,56 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* ft_htset.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2020/01/30 08:41:52 by cacharle #+# #+# */ +/* Updated: 2020/04/01 18:02:12 by charles ### ########.fr */ +/* */ +/* ************************************************************************** */ + +#include "libft.h" +#include "libft_ht.h" + +/* +** \brief Create/Update a entry in hash table. +** \note If `key` already exist in `ht` +** only updates the list node content. +** Else create a new list node in addition the list content. +** \param ht Hash table where the entry is modified +** \param key Key of the new entry +** \param value Value of the new entry +** \param del Destroy function in case the entry is modified. +** \return Pointer to the created entry, NULL if an allocation failed. +*/ + +t_ftht_entry *ft_htset(t_ftht *ht, char *key, void *value, + void (*del)(t_ftht_entry*)) +{ + t_ftht_digest digest; + t_ftht_entry *content; + t_ftht_bucket bucket; + t_ftlst *tmp; + + if (ht == NULL || key == NULL) + return (NULL); + if ((content = ft_htentry_new(key, value)) == NULL) + return (NULL); + digest = ft_hthash(ht, key); + tmp = ft_lstlfind(ht->buckets[digest], ft_inter_htkey_cmp, key); + if (tmp != NULL) + { + if (del != NULL) + del(tmp->data); + tmp->data = content; + return ((t_ftht_entry*)tmp->data); + } + if ((bucket = ft_lstnew(content)) == NULL) + { + del(content); + return (NULL); + } + ft_lstpush_front(ht->buckets + digest, bucket); + return (content); +} |