mongoc_apm_set_topology_changed_cb(3)

MONGOC_APM_SET_TOPOLOGY_CHANGED_CB(3)

libmongoc

MONGOC_APM_SET_TOPOLOGY_CHANGED_CB(3)

SYNOPSIS

typedef void (*mongoc_apm_topology_changed_cb_t) (


   const mongoc_apm_topology_changed_t *event);
void
mongoc_apm_set_topology_changed_cb (mongoc_apm_callbacks_t *callbacks,


                                    mongoc_apm_topology_changed_cb_t cb);

Receive an event notification whenever the driver observes a change in any of the servers it is connected to or a change in the overall server topology.

PARAMETERS

callbacks: A mongoc_apm_callbacks_t <>.
cb: A function to call with a mongoc_apm_topology_changed_t <> whenever the driver observes a change in any of the servers it is connected to or a change in the overall server topology.

See also:

Introduction to Application Performance Monitoring <>

Author

MongoDB, Inc

Copyright

2009-present, MongoDB, Inc.

February 10, 2026

1.30.7