# mongoc_client_session_advance_operation_time()

## Synopsis

    void
    mongoc_client_session_advance_operation_time (mongoc_client_session_t *session,
                                                  uint32_t timestamp,
                                                  uint32_t increment);

Advance the session’s operation time, expressed as a BSON Timestamp with timestamp and increment components. Has an effect only if the new operation time is greater than the session’s current operation time.

Use mongoc_client_session_advance_operation_time() and mongoc_client_session_advance_cluster_time() to copy the operationTime and clusterTime from another session, ensuring subsequent operations in this session are causally consistent with the last operation in the other session

## Parameters

- `session`: A mongoc_client_session_t.
- `timestamp`: The new operationTime’s timestamp component.
- `increment`: The new operationTime’s increment component.

### See Also:

mongoc_client_session_abort_transaction

mongoc_client_session_advance_cluster_time

mongoc_client_session_commit_transaction

mongoc_client_session_destroy

mongoc_client_session_get_client

mongoc_client_session_get_cluster_time

mongoc_client_session_get_lsid

mongoc_client_session_get_operation_time

mongoc_client_session_get_opts

mongoc_client_session_get_server_id

mongoc_client_session_start_transaction

mongoc_client_session_t

mongoc_client_start_session

mongoc_session_opts_clone

mongoc_session_opts_destroy

mongoc_session_opts_get_causal_consistency

mongoc_session_opts_get_default_transaction_opts

mongoc_session_opts_get_transaction_opts

mongoc_session_opts_new

mongoc_session_opts_set_causal_consistency

mongoc_session_opts_set_default_transaction_opts

mongoc_transaction_opts_clone

mongoc_transaction_opts_destroy

mongoc_transaction_opts_get_max_commit_time_ms

mongoc_transaction_opts_get_read_concern

mongoc_transaction_opts_get_read_prefs

mongoc_transaction_opts_get_write_concern

mongoc_transaction_opts_new

mongoc_transaction_opts_set_max_commit_time_ms

mongoc_transaction_opts_set_read_concern

mongoc_transaction_opts_set_read_prefs

mongoc_transaction_opts_set_write_concern