static handle_ledger_t *get_or_add_handle_ledger(TROVE_coll_id coll_id)
{
handle_ledger_t *ledger = NULL;
struct qlist_head *hash_link = NULL;
/* search for a matching entry */
hash_link = qhash_search(s_fsid_to_ledger_table,&(coll_id));
if (hash_link)
{
/* return it if it exists */
ledger = qlist_entry(hash_link, handle_ledger_t, hash_link);
}
else
{
/* alloc, initialize, then return otherwise */
ledger = (handle_ledger_t *)malloc(sizeof(handle_ledger_t));
if (ledger)
{
ledger->coll_id = coll_id;
ledger->have_valid_ranges = 0;
ledger->ledger = trove_handle_ledger_init(coll_id,NULL);
if (ledger->ledger)
{
qhash_add(s_fsid_to_ledger_table,
&(coll_id),&(ledger->hash_link));
}
else
{
free(ledger);
ledger = NULL;
}
}
}
return ledger;
}
int pvfs2_mmap_ra_cache_register(PVFS_object_ref refn,
void *data, int data_len)
{
int ret = -1;
mmap_ra_cache_elem_t *cache_elem = NULL;
if (MMAP_RA_CACHE_INITIALIZED())
{
pvfs2_mmap_ra_cache_flush(refn);
cache_elem = (mmap_ra_cache_elem_t *)
malloc(sizeof(mmap_ra_cache_elem_t));
if (!cache_elem)
{
goto return_exit;
}
memset(cache_elem, 0, sizeof(mmap_ra_cache_elem_t));
cache_elem->refn = refn;
cache_elem->data = malloc(data_len);
if (!cache_elem->data)
{
goto return_exit;
}
memcpy(cache_elem->data, data, data_len);
cache_elem->data_sz = data_len;
gen_mutex_lock(&s_mmap_ra_cache_mutex);
qhash_add(s_key_to_data_table,
&refn, &cache_elem->hash_link);
gen_mutex_unlock(&s_mmap_ra_cache_mutex);
gossip_debug(GOSSIP_MMAP_RCACHE_DEBUG, "Inserted mmap ra cache "
"element %llu, %d of size %llu\n",
llu(cache_elem->refn.handle),
cache_elem->refn.fs_id,
llu(cache_elem->data_sz));
ret = 0;
}
return_exit:
return ret;
}
int id_gen_safe_register(
BMI_id_gen_t *new_id,
void *item)
{
id_gen_safe_t *id_elem = NULL;
assert(s_id_gen_safe_table != NULL);
if (!item)
{
return -EINVAL;
}
gen_mutex_lock(&s_id_gen_safe_mutex);
id_elem = (id_gen_safe_t *)malloc(sizeof(id_gen_safe_t));
if (!id_elem)
{
return -ENOMEM;
}
id_elem->id = ++s_id_gen_safe_tag;
if(id_elem->id == 0)
{
/* don't want this to land on zero */
id_elem->id = ++s_id_gen_safe_tag;
}
id_elem->item = item;
qhash_add(s_id_gen_safe_table, &id_elem->id, &id_elem->hash_link);
*new_id = id_elem->id;
gen_mutex_unlock(&s_id_gen_safe_mutex);
return 0;
}