Function pulsar_sys::pulsar_consumer_receive

pub unsafe extern "C" fn pulsar_consumer_receive(
    consumer: *mut pulsar_consumer_t, 
    msg: *mut *mut pulsar_message_t
) -> pulsar_result

Receive a single message.

If a message is not immediately available, this method will block until a new message is available.

@param msg a non-const reference where the received message will be copied @return ResultOk when a message is received @return ResultInvalidConfiguration if a message listener had been set in the configuration