SO_RCVTIMEO and SO_SNDTIMEO are for setting a timeout on blocking socket operations. They don't tell you anything about whether the other end is still there or

SO_RCVTIMEO and SO_SNDTIMEO are for setting a timeout on blocking socket operations. They don't tell you anything about whether the other end is still there or not. Setting those options isn't much different from setting a timeout in your poll() call.