Provided by: libmongoc-doc_2.2.1-1_all 

SYNOPSIS
const mongoc_server_description_t *
mongoc_apm_server_changed_get_previous_description (
const mongoc_apm_server_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
• event: A mongoc_apm_server_changed_t <>.
RETURNS
A mongoc_server_description_t <> that should not be modified or freed.
See also:
Introduction to Application Performance Monitoring <>
Author
MongoDB, Inc
Copyright
2009-present, MongoDB, Inc.
2.2.1 Dec 11, 2025MONGOC_APM_SERVER_CHAN...T_PREVIOUS_DESCRIPTION(3)