static int fi_ibv_eq_close(fid_t fid)
{
struct fi_ibv_eq *eq;
struct fi_ibv_eq_entry *entry;
eq = container_of(fid, struct fi_ibv_eq, eq_fid.fid);
if (eq->channel)
rdma_destroy_event_channel(eq->channel);
close(eq->epfd);
fastlock_acquire(&eq->lock);
while(!dlistfd_empty(&eq->list_head)) {
entry = container_of(eq->list_head.list.next, struct fi_ibv_eq_entry, item);
dlistfd_remove(eq->list_head.list.next, &eq->list_head);
free(entry);
}
dlistfd_head_free(&eq->list_head);
fastlock_destroy(&eq->lock);
free(eq);
return 0;
}
static int fi_ibv_eq_close(fid_t fid)
{
struct fi_ibv_eq *eq;
struct fi_ibv_eq_entry *entry;
eq = container_of(fid, struct fi_ibv_eq, eq_fid.fid);
/* TODO: use util code, if possible, and add ref counting */
if (eq->channel)
rdma_destroy_event_channel(eq->channel);
close(eq->epfd);
while (!dlistfd_empty(&eq->list_head)) {
entry = container_of(eq->list_head.list.next,
struct fi_ibv_eq_entry, item);
dlistfd_remove(eq->list_head.list.next, &eq->list_head);
free(entry);
}
dlistfd_head_free(&eq->list_head);
fastlock_destroy(&eq->lock);
free(eq);
return 0;
}
static size_t fi_ibv_eq_read_event(struct fi_ibv_eq *eq, uint32_t *event,
void *buf, size_t len, uint64_t flags)
{
struct fi_ibv_eq_entry *entry;
ssize_t ret = 0;
fastlock_acquire(&eq->lock);
if (dlistfd_empty(&eq->list_head))
goto out;
entry = container_of(eq->list_head.list.next, struct fi_ibv_eq_entry, item);
if (entry->len > len) {
ret = -FI_ETOOSMALL;
goto out;
}
ret = entry->len;
*event = entry->event;
memcpy(buf, entry->eq_entry, entry->len);
if (!(flags & FI_PEEK)) {
dlistfd_remove(eq->list_head.list.next, &eq->list_head);
free(entry);
}
out:
fastlock_release(&eq->lock);
return ret;
}
static ssize_t sock_eq_sread(struct fid_eq *eq, uint32_t *event, void *buf, size_t len,
int timeout, uint64_t flags)
{
int ret;
struct sock_eq *sock_eq;
struct dlist_entry *list;
struct sock_eq_entry *entry;
sock_eq = container_of(eq, struct sock_eq, eq);
sock_eq_clean_err_data_list(sock_eq, 0);
if (!dlistfd_empty(&sock_eq->err_list)) {
return -FI_EAVAIL;
}
if (dlistfd_empty(&sock_eq->list)) {
if(!timeout) {
SOCK_LOG_DBG("Nothing to read from eq!\n");
return -FI_EAGAIN;
}
ret = dlistfd_wait_avail(&sock_eq->list, timeout);
if (!dlistfd_empty(&sock_eq->err_list)) {
return -FI_EAVAIL;
}
if (ret <= 0)
return (ret == 0 || ret == -FI_ETIMEDOUT) ?
-FI_EAGAIN : ret;
}
fastlock_acquire(&sock_eq->lock);
list = sock_eq->list.list.next;
entry = container_of(list, struct sock_eq_entry, entry);
if (entry->len > len) {
ret = -FI_ETOOSMALL;
goto out;
}
ret = entry->len;
*event = entry->type;
memcpy(buf, entry->event, entry->len);
if (!(flags & FI_PEEK)) {
dlistfd_remove(list, &sock_eq->list);
free(entry);
}
out:
fastlock_release(&sock_eq->lock);
return (ret == 0 || ret == -FI_ETIMEDOUT) ? -FI_EAGAIN : ret;
}
