CONNECTION_IDLE_TIMEOUT
conn->c_idle_timeout_val = CONNECTION_IDLE_TIMEOUT;
cv_timedwait(&conn->c_idle_cv, &conn->c_lock, CONNECTION_IDLE_TIMEOUT);
conn->c_idle_timeout_val = CONNECTION_IDLE_TIMEOUT;
cv_timedwait(&conn->c_idle_cv, &conn->c_lock, CONNECTION_IDLE_TIMEOUT);
(conn->c_Time2Retain / 2) * hz : CONNECTION_IDLE_TIMEOUT;