void mongoc_client_destroy (mongoc_client_t *client);
Release all resources associated with client and free the structure. Does nothing if client is NULL.
Only call mongoc_client_destroy() on a single-threaded client. Do not call on a mongoc_client_t obtained from a mongoc_client_pool_t, which should instead be pushed back with mongoc_client_pool_push().
- client: A mongoc_client_t.
mongoc_client_pool_push() to push a multi-threaded client back onto a pool.
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