static void
SQLX_REMOVE(sqlx_cache_t *cache, sqlx_base_t *base,
struct beacon_s *beacon)
{
sqlx_base_t *next, *prev;
/* Update the beacon */
if (beacon->first == base->index)
beacon->first = sqlx_base_get_id(sqlx_next_by_id(cache, beacon->first));
if (beacon->last == base->index)
beacon->last = sqlx_base_get_id(sqlx_prev_by_id(cache, beacon->last));
/* Update the previous and next */
next = sqlx_get_by_id(cache, base->link.next);
prev = sqlx_get_by_id(cache, base->link.prev);
if (prev)
prev->link.next = sqlx_base_get_id(next);
if (next)
next->link.prev = sqlx_base_get_id(prev);
/* Update the base itself */
base->status = 0;
base->link.prev = -1;
base->link.next = -1;
}
static sqlx_base_t *
sqlx_prev_by_id(sqlx_cache_t *cache, gint i)
{
sqlx_base_t *current;
return (current = sqlx_get_by_id(cache, i))
? sqlx_get_by_id(cache, current->link.prev)
: NULL;
}
static inline sqlx_base_t *
sqlx_next_by_id(sqlx_cache_t *cache, gint i)
{
sqlx_base_t *current;
return (current = sqlx_get_by_id(cache, i))
? sqlx_get_by_id(cache, current->link.next)
: NULL;
}
static sqlx_base_t*
sqlx_poll_free_base(sqlx_cache_t *cache)
{
sqlx_base_t *base;
base = sqlx_get_by_id(cache, cache->beacon_free.first);
if (!base) {
errno = ENOENT;
return NULL;
}
return base;
}
static void
SQLX_UNSHIFT(sqlx_cache_t *cache, sqlx_base_t *base,
struct beacon_s *beacon, enum sqlx_base_status_e status)
{
sqlx_base_t *first;
base->link.prev = base->link.next = -1;
base->link.next = beacon->first;
first = sqlx_get_by_id(cache, beacon->first);
if (first)
first->link.prev = base->index;
beacon->first = base->index;
if (beacon->last < 0)
beacon->last = base->index;
base->status = status;
g_get_current_time(&(base->last_update));
}