C++ (Cpp) out_tx_write Examples

Example #1

File: out_handler.c Project: KnightKu/lustre-stable

static int out_write(struct tgt_session_info *tsi)
{
	struct tgt_thread_info	*tti = tgt_th_info(tsi->tsi_env);
	struct object_update	*update = tti->tti_u.update.tti_update;
	struct dt_object	*obj = tti->tti_u.update.tti_dt_object;
	struct lu_buf		*lbuf = &tti->tti_buf;
	char			*buf;
	__u64			*tmp;
	size_t			size = 0;
	size_t			buf_len = 0;
	loff_t			pos;
	int			 rc;
	ENTRY;

	buf = object_update_param_get(update, 0, &buf_len);
	if (IS_ERR(buf) || buf_len == 0) {
		CERROR("%s: empty buf for xattr set: rc = %ld\n",
		       tgt_name(tsi->tsi_tgt), PTR_ERR(buf));
		RETURN(PTR_ERR(buf));
	}
	lbuf->lb_buf = buf;
	lbuf->lb_len = buf_len;

	tmp = object_update_param_get(update, 1, &size);
	if (IS_ERR(tmp) || size != sizeof(*tmp)) {
		CERROR("%s: empty or wrong size %zu pos: rc = %ld\n",
		       tgt_name(tsi->tsi_tgt), size, PTR_ERR(tmp));
		RETURN(PTR_ERR(tmp));
	}

	if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
		__swab64s(tmp);
	pos = *tmp;

	rc = out_tx_write(tsi->tsi_env, obj, lbuf, pos,
			  &tti->tti_tea, tti->tti_tea.ta_handle,
			  tti->tti_u.update.tti_update_reply,
			  tti->tti_u.update.tti_update_reply_index);
	RETURN(rc);
}

Example #2

File: out_handler.c Project: hejin/lustre-stable

static int out_write(struct tgt_session_info *tsi)
{
	struct tgt_thread_info	*tti = tgt_th_info(tsi->tsi_env);
	struct object_update	*update = tti->tti_u.update.tti_update;
	struct dt_object	*obj = tti->tti_u.update.tti_dt_object;
	struct lu_buf		*lbuf = &tti->tti_buf;
	char			*buf;
	char			*tmp;
	int			buf_len = 0;
	loff_t			pos;
	int			 rc;
	ENTRY;

	buf = object_update_param_get(update, 0, &buf_len);
	if (buf == NULL || buf_len == 0) {
		CERROR("%s: empty buf for xattr set: rc = %d\n",
		       tgt_name(tsi->tsi_tgt), -EPROTO);
		RETURN(err_serious(-EPROTO));
	}
	lbuf->lb_buf = buf;
	lbuf->lb_len = buf_len;

	tmp = (char *)object_update_param_get(update, 1, NULL);
	if (tmp == NULL) {
		CERROR("%s: empty flag for xattr set: rc = %d\n",
		       tgt_name(tsi->tsi_tgt), -EPROTO);
		RETURN(err_serious(-EPROTO));
	}

	if (ptlrpc_req_need_swab(tsi->tsi_pill->rc_req))
		__swab64s((__u64 *)tmp);
	pos = *(loff_t *)tmp;

	rc = out_tx_write(tsi->tsi_env, obj, lbuf, pos,
			  &tti->tti_tea,
			  tti->tti_u.update.tti_update_reply,
			  tti->tti_u.update.tti_update_reply_index);
	RETURN(rc);
}