C++ (Cpp) hash_node_alloc 예제들

예제 #1

파일: hash.c 프로젝트: elitak/freeipmi

void *
hash_insert (hash_t h, const void *key, void *data)
{
    struct hash_node *p;
    unsigned int slot;

    if (!h || !key || !data) {
        errno = EINVAL;
        return (NULL);
    }
    lsd_mutex_lock (&h->mutex);
    assert (h->magic == HASH_MAGIC);
    slot = h->key_f (key) % h->size;
    for (p = h->table[slot]; p != NULL; p = p->next) {
        if (!h->cmp_f (p->hkey, key)) {
            errno = EEXIST;
            data = NULL;
            goto end;
        }
    }
    if (!(p = hash_node_alloc ())) {
        data = lsd_nomem_error (__FILE__, __LINE__, "hash_insert");
        goto end;
    }
    p->hkey = key;
    p->data = data;
    p->next = h->table[slot];
    h->table[slot] = p;
    h->count++;

end:
    lsd_mutex_unlock (&h->mutex);
    return (data);
}

예제 #2

파일: hash.c 프로젝트: dun/munge

void *
hash_insert (hash_t h, const void *key, void *data)
{
    unsigned int slot;
    int cmpval;
    struct hash_node **pp;
    struct hash_node *p;

    if (!h || !key || !data) {
        errno = EINVAL;
        return (NULL);
    }
    lsd_mutex_lock (&h->mutex);
    slot = h->key_f (key) % h->size;
    for (pp = &(h->table[slot]); (p = *pp) != NULL; pp = &(p->next)) {
        cmpval = h->cmp_f (p->hkey, key);
        if (cmpval < 0) {
            continue;
        }
        if (cmpval == 0) {
            errno = EEXIST;
            data = NULL;
            goto end;
        }
        break;
    }
    if (!(p = hash_node_alloc ())) {
        data = NULL;
        goto end;
    }
    p->hkey = key;
    p->data = data;
    p->next = *pp;
    *pp = p;
    h->count++;

end:
    lsd_mutex_unlock (&h->mutex);
    return (data);
}