Function FSEventStreamCreate 

pub unsafe extern "C-unwind" fn FSEventStreamCreate(
    allocator: Option<&CFAllocator>,
    callback: FSEventStreamCallback,
    context: *mut FSEventStreamContext,
    paths_to_watch: &CFArray,
    since_when: FSEventStreamEventId,
    latency: CFTimeInterval,
    flags: FSEventStreamCreateFlags,
) -> FSEventStreamRef

Available on crate feature FSEvents only.

Safety

• callback must be implemented correctly.
• context must be a valid pointer or null.
• paths_to_watch generic must be of the correct type.