*
* \return Standard.
*/
-int mark_fd_blocking(int fd)
+__must_check int mark_fd_blocking(int fd)
{
int flags = fcntl(fd, F_GETFL);
if (flags < 0)
*
* \return Standard.
*/
-int mark_fd_nonblocking(int fd)
+__must_check int mark_fd_nonblocking(int fd)
{
int flags = fcntl(fd, F_GETFL);
if (flags < 0)