Function rte_vhost_driver_start

dpdk/lib/vhost/socket.c:1186–1225

}

int
rte_vhost_driver_start(const char *path)
{
	struct vhost_user_socket *vsocket;
	static rte_thread_t fdset_tid;

	pthread_mutex_lock(&vhost_user.mutex);
	vsocket = find_vhost_user_socket(path);
	pthread_mutex_unlock(&vhost_user.mutex);

	if (!vsocket)
		return -1;

	if (vsocket->is_vduse)
		return vduse_device_create(path, vsocket->net_compliant_ol_flags);

	if (fdset_tid.opaque_id == 0) {
		/**
		 * create a pipe which will be waited by poll and notified to
		 * rebuild the wait list of poll.
		 */
		if (fdset_pipe_init(&vhost_user.fdset) < 0) {
			VHOST_LOG_CONFIG(path, ERR, "failed to create pipe for vhost fdset\n");
			return -1;
		}

		int ret = rte_thread_create_internal_control(&fdset_tid,
				"vhost-evt", fdset_event_dispatch, &vhost_user.fdset);
		if (ret != 0) {
			VHOST_LOG_CONFIG(path, ERR, "failed to create fdset handling thread\n");
			fdset_pipe_uninit(&vhost_user.fdset);
			return -1;
		}
	}

	if (vsocket->is_server)
		return vhost_user_start_server(vsocket);
	else
		return vhost_user_start_client(vsocket);
}