Function CFSocketCreateWithSocketSignature 

pub unsafe extern "C-unwind" fn CFSocketCreateWithSocketSignature(
    allocator: Option<&CFAllocator>,
    signature: *const CFSocketSignature,
    call_back_types: CFOptionFlags,
    callout: CFSocketCallBack,
    context: *const CFSocketContext,
) -> Option<CFRetained<CFSocket>>

👎Deprecated: renamed to CFSocket::with_socket_signature

Available on crate features CFData and CFSocket only.