Type Alias paho_mqtt_sys::MQTTAsync_traceCallback
source · pub type MQTTAsync_traceCallback = Option<unsafe extern "C" fn(level: MQTTASYNC_TRACE_LEVELS, message: *mut c_char)>;
Aliased Type§
enum MQTTAsync_traceCallback {
None,
Some(unsafe extern "C" fn(_: u32, _: *mut i8)),
}