bool mongoc_topology_description_has_writable_server ( const mongoc_topology_description_t *td);
Determines if the topology has a writable server available, such as a primary, mongos, or standalone. This function uses the driver's current knowledge of the state of the MongoDB server or servers it is connected to; it does no I/O and it does not block.
- td: A mongoc_topology_description_t.
True if there is a known writable server.
Introduction to Application Performance Monitoring
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