Long polling is a polling technique in which the server will delay completing the HTTP response until either an update is ready for the client or a timeout occurs.
The electoral officials - who have apologised for the delay - say ballot papers have not been delivered in time to many polling stations.
尼日利亚官员称，议会选举因为组织不利而被推迟至星期一。
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The CAP schedules packet transmission based on the polling mechanism and dynamic TDMA, and a mini-slot is used to keep connectivity when an MT is idle, thus, the access delay is reduced.