mongoc_write_concern_set_journal() — MongoDB C Driver 1.9.2

- MongoDB C Driver 1.9.2 »
- API Reference »
- mongoc_write_concern_t

# mongoc_write_concern_set_journal()

## Synopsis

    void
    mongoc_write_concern_set_journal (mongoc_write_concern_t *write_concern,
                                      bool journal);

## Parameters

- `write_concern`: A mongoc_write_concern_t.
- `journal`: A boolean.

## Description

Sets if the write must have been journaled before indicating success.

Beginning in version 1.9.0, this function can now alter the write concern after it has been used in an operation. Previously, using the struct with an operation would mark it as “frozen” and calling this function would log a warning instead instead of altering the write concern.

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