Function burn_write_opts_set_simulate 

pub unsafe extern "C" fn burn_write_opts_set_simulate(
    opts: *mut burn_write_opts,
    sim: c_int,
) -> c_int

Sets the simulate value for the write_opts struct . This corresponds to the Test Write bit in MMC mode page 05h. Several media types do not support this. See struct burn_multi_caps.might_simulate for actual availability of this feature. If the media is suitable, the drive will perform burn_disc_write() as a simulation instead of effective write operations. This means that the media content and burn_disc_get_status() stay unchanged. Note: With stdio-drives, the target file gets eventually created, opened, lseeked, and closed, but not written. So there are effects on it. Note: Up to version 1.4.6 the call burn_random_access_write() after burn_disc_write() did not simulate because it does not get any burn_write_opts and the drive did not memorize the simulation state. This has changed now. burn_random_access_write() will not write after a simulated burn run. Use burn_drive_reset_simulate(drive, 0) if you really want to end simulation before you call burn_disc_write() with new write options.

@param opts The write opts to change

@param sim Non-zero enables simulation, 0 enables real writing

@return Returns 1 on success and 0 on failure.