Function mosquitto_client::sys::mosquitto_publish

pub unsafe extern "C" fn mosquitto_publish(
    mosq: *const Mosq, 
    mid: *mut c_int, 
    topic: *const c_char, 
    payloadlen: c_int, 
    payload: *const u8, 
    qos: c_int, 
    retain: u8
) -> c_int