Polls the server, prompting a Notifier to check a cache for push requests.
return_code Poll( const char * Notifier, const char * key, char * subject = 0, size_t * subjectSize = 0, char * content = 0, size_t * contentSize = 0 ) = 0;
Notifier The name of the Notifier.
key The name of the poll key identifying the Listener.
subject The buffer to receive a message subject. (null-terminated)
subjectSize IN: The size of the subject buffer.
OUT: The size of the received subject, including a null-terminator, where zero indicates a null subject.
content The buffer to receive message content. (null-terminated)
contentSize IN: The size of the content buffer.
OUT: The size of the received content, including a null-terminator, where zero indicates null content.
One of the codes listed in the return_code enumeration. See return_code enumeration.
The Listener connects to the Notifier, then disconnects after the Notifier checks its cache for a push notification targeted for the given poll key.
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