SYNOPSIS

const mongoc_topology_description_t *
mongoc_apm_topology_changed_get_previous_description (
   const mongoc_apm_topology_changed_t *event);

Returns this event's previous description. The data is only valid in the scope of the callback that receives this event; copy it if it will be accessed after the callback returns.

PARAMETERS

RETURNS

A mongoc_topology_description_t that should not be modified or freed.

SEE ALSO:

Introduction to Application Performance Monitoring

AUTHOR

MongoDB, Inc

COPYRIGHT

2017-present, MongoDB, Inc