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dido:public:ra:xapend:xapend.f_qos:deadline

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dido:public:ra:xapend:xapend.f_qos:deadline [2021/07/30 11:46]
murphy
dido:public:ra:xapend:xapend.f_qos:deadline [2021/10/04 13:40] (current)
50.19.247.197 ↷ Links adapted because of a move operation
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 ====== F.7 Deadline ====== ====== F.7 Deadline ======
-[[dido:​public:​ra:​xapend:​xapend.f_qos| Return to DDS Quality of Service ]]+[[dido:​public:​ra:​xapend:​xapend.f_qos:start| Return to DDS Quality of Service ]]
  
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-The [[dido:​public:​ra:​xapend:​xapend.a_glossary:​d:​deadline_qos|DEADLINE Policy]] is useful for cases where a [[dido:​public:​ra:​xapend:​xapend.a_glossary:​t:​topic|Topic]] is expected to have each [[dido:​public:​ra:​xapend:​xapend.a_glossary:​i:​instance|instance]] updated periodically. On the publishing side this setting establishes a contract that the [[dido:​public:​ra:​xapend:​xapend.a_glossary:​a:​application|application]] must meet. On the subscribing side the setting establishes a minimum [[dido:​public:​ra:​xapend:​xapend.a_glossary:​r:​requirement|requirement]] for the remote publishers that are expected to supply the data values.+The [[dido:​public:​ra:​xapend:​xapend.a_glossary:​d:​deadline_qos|DEADLINE]] [[dido:​public:​ra:​xapend:​xapend.a_glossary:​p:​policy|Policy]] is useful for cases where a [[dido:​public:​ra:​xapend:​xapend.a_glossary:​t:​topic|Topic]] is expected to have each [[dido:​public:​ra:​xapend:​xapend.a_glossary:​i:​instance|instance]] updated periodically. On the publishing side this setting establishes a contract that the [[dido:​public:​ra:​xapend:​xapend.a_glossary:​a:​application|application]] must meet. On the subscribing side the setting establishes a minimum [[dido:​public:​ra:​xapend:​xapend.a_glossary:​r:​requirement|requirement]] for the remote publishers that are expected to supply the data values.
  
 When the Service ‘matches’ a ''​DataWriter''​ and a ''​DataReader''​ it checks whether the settings are compatible (i.e., offered deadline period<= requested deadline period) if they are not, the two entities are informed (via the [[dido:​public:​ra:​xapend:​xapend.a_glossary:​l:​listener|listener]] or [[dido:​public:​ra:​xapend:​xapend.a_glossary:​c:​condition|condition]] mechanism) of the incompatibility of the [[dido:​public:​ra:​xapend:​xapend.a_glossary:​q:​qos|QoS]] settings and communication will not occur. When the Service ‘matches’ a ''​DataWriter''​ and a ''​DataReader''​ it checks whether the settings are compatible (i.e., offered deadline period<= requested deadline period) if they are not, the two entities are informed (via the [[dido:​public:​ra:​xapend:​xapend.a_glossary:​l:​listener|listener]] or [[dido:​public:​ra:​xapend:​xapend.a_glossary:​c:​condition|condition]] mechanism) of the incompatibility of the [[dido:​public:​ra:​xapend:​xapend.a_glossary:​q:​qos|QoS]] settings and communication will not occur.
dido/public/ra/xapend/xapend.f_qos/deadline.1627659971.txt.gz · Last modified: 2021/07/30 11:46 by murphy