CRingDataSourceCRingDataSource(URL& url, std::vector<uint16_t> exclusionList, std::vector<uint16_t> sampleList);CRingItem* getItem();
Concrete CDataSource class that implements
a source of ring items from a live ring. See the METHODS
section below for more information about how to create and use
this data source directly. Note that a more convenient mechanism
for generating these data sources is via the
CDataSourceFactory class.
CRingDataSource(URL& url, std::vector<uint16_t> exclusionList, std::vector<uint16_t> sampleList);
Constructs a CRingDataSource object.
url specifies the ring from which
data is desired. This can be a local or remote ring.
The url protocol must be a tcp:.
exclusionList specifies a
list of ring item types that will not be passed to the
client via getItem
sampleList speicfies a list
of ring item types that will be sampled from the ring.
Item types in this vector may be skipped if the client
application falls behind in processing the ring buffer.
CRingItem* getItem();
Returns the next suitable item from the ring. This method
will block until a suitable item is available. Suitability
is defined by the exclusionList
and sampleList of item types
provided whent he data source was constructed taken with
the ring backlog.