table of contents
| MONGOC_SESSION_OPTS_SET_DEFAULT_TRANSACTION_OPTS(3) | libmongoc | MONGOC_SESSION_OPTS_SET_DEFAULT_TRANSACTION_OPTS(3) |
SYNOPSIS¶
void mongoc_session_opts_set_default_transaction_opts (
mongoc_session_opt_t *opts, const mongoc_transaction_opt_t *txn_opts);
Set the default options for transactions started with this session. The txn_opts argument is copied and can be freed after calling this function.
When a session is first created with mongoc_client_start_session() <>, it inherits from the client the read concern, write concern, and read preference with which to start transactions. Each of these fields can be overridden independently. Create a mongoc_transaction_opt_t <> with mongoc_transaction_opts_new() <>, and pass a non-NULL option to any of the mongoc_transaction_opt_t <> setter functions:
- mongoc_transaction_opts_set_read_concern() <>
- mongoc_transaction_opts_set_write_concern() <>
- mongoc_transaction_opts_set_read_prefs() <>
Pass the resulting transaction options to mongoc_session_opts_set_default_transaction_opts() <>. Each field set in the transaction options overrides the inherited client configuration. There is an opportunity to override each one of these fields again by passing a mongoc_transaction_opt_t <> to mongoc_client_session_start_transaction() <>.
PARAMETERS¶
- opts: A mongoc_session_opt_t <>.
- txn_opts: A mongoc_transaction_opt_t <>.
Author¶
MongoDB, Inc
Copyright¶
2009-present, MongoDB, Inc.
| December 11, 2025 | 2.2.1 |