Function CMSyncGetTime 

pub unsafe extern "C-unwind" fn CMSyncGetTime(
    clock_or_timebase: &CMClockOrTimebase,
) -> CMTime

Available on crate features CMSync and CMTime only.

A helper function to get time from a clock or timebase.

CMSyncGetTime simply calls either CMClockGetTime or CMTimebaseGetTime, as appropriate. It comes in handy for things like: CMClockOrTimebaseRef source = CMTimebaseCopySource(timebase); CMSyncGetTime(source); CFRelease(source);

Safety

clock_or_timebase should be of the correct type.