static int util_wait_fd_close(struct fid *fid)
{
struct util_wait_fd *wait;
struct ofi_wait_fd_entry *fd_entry;
int ret;
wait = container_of(fid, struct util_wait_fd, util_wait.wait_fid.fid);
ret = fi_wait_cleanup(&wait->util_wait);
if (ret)
return ret;
fastlock_acquire(&wait->lock);
while (!dlist_empty(&wait->fd_list)) {
dlist_pop_front(&wait->fd_list, struct ofi_wait_fd_entry,
fd_entry, entry);
fi_epoll_del(wait->epoll_fd, fd_entry->fd);
free(fd_entry);
}
fastlock_release(&wait->lock);
fi_epoll_del(wait->epoll_fd, wait->signal.fd[FI_READ_FD]);
fd_signal_free(&wait->signal);
fi_epoll_close(wait->epoll_fd);
fastlock_destroy(&wait->lock);
free(wait);
return 0;
}
int ofi_wait_fd_open(struct fid_fabric *fabric_fid, struct fi_wait_attr *attr,
struct fid_wait **waitset)
{
struct util_fabric *fabric;
struct util_wait_fd *wait;
int ret;
fabric = container_of(fabric_fid, struct util_fabric, fabric_fid);
ret = util_verify_wait_fd_attr(fabric->prov, attr);
if (ret)
return ret;
wait = calloc(1, sizeof(*wait));
if (!wait)
return -FI_ENOMEM;
ret = fi_wait_init(fabric, attr, &wait->util_wait);
if (ret)
goto err1;
wait->util_wait.signal = util_wait_fd_signal;
wait->util_wait.wait_try = util_wait_fd_try;
ret = fd_signal_init(&wait->signal);
if (ret)
goto err2;
ret = fi_epoll_create(&wait->epoll_fd);
if (ret)
goto err3;
ret = fi_epoll_add(wait->epoll_fd, wait->signal.fd[FI_READ_FD],
FI_EPOLL_IN, &wait->util_wait.wait_fid.fid);
if (ret)
goto err4;
wait->util_wait.wait_fid.fid.ops = &util_wait_fd_fi_ops;
wait->util_wait.wait_fid.ops = &util_wait_fd_ops;
dlist_init(&wait->fd_list);
fastlock_init(&wait->lock);
*waitset = &wait->util_wait.wait_fid;
return 0;
err4:
fi_epoll_close(wait->epoll_fd);
err3:
fd_signal_free(&wait->signal);
err2:
fi_wait_cleanup(&wait->util_wait);
err1:
free(wait);
return ret;
}
static int util_wait_fd_close(struct fid *fid)
{
struct util_wait_fd *wait;
int ret;
wait = container_of(fid, struct util_wait_fd, util_wait.wait_fid.fid);
ret = fi_wait_cleanup(&wait->util_wait);
if (ret)
return ret;
fi_epoll_del(wait->epoll_fd, wait->signal.fd[FI_READ_FD]);
fd_signal_free(&wait->signal);
fi_epoll_close(wait->epoll_fd);
free(wait);
return 0;
}
