bool

       MongoDB, Inc

       2009-present, MongoDB, Inc.

1.30.4                                            Jun 08, 2025                      MONGOC_CHANGE_STREAM_NEXT(3)

       Similar   to   mongoc_cursor_next()   the   lifetime   of   bson   is   until   the    next    call    to
       mongoc_change_stream_next(), so it needs to be copied to extend the lifetime.

       • stream: A mongoc_change_stream_t.

       • bson: The location for the resulting document.

       This  function returns true if a valid bson document was read from the stream.  Otherwise, false if there
       was an error or no document was available.

       Errors can be determined with the mongoc_change_stream_error_document() function.

          bool
          mongoc_change_stream_next (mongoc_change_stream_t *stream,
                                     const bson_t **bson);

       This  function  iterates  the underlying cursor, setting bson to the next document. This will block for a
       maximum of maxAwaitTimeMS milliseconds as specified in the options when created, or the  default  timeout
       if omitted. Data may be returned before the timeout. If no data is returned this function returns false.