Function CFStreamCreateBoundPair 

pub unsafe extern "C-unwind" fn CFStreamCreateBoundPair(
    alloc: Option<&CFAllocator>,
    read_stream: *mut *mut CFReadStream,
    write_stream: *mut *mut CFWriteStream,
    transfer_buffer_size: CFIndex,
)

Available on crate feature CFStream only.

Safety

• alloc might not allow None.
• read_stream must be a valid pointer.
• write_stream must be a valid pointer.