Function paho_mqtt_sys::MQTTAsync_subscribeMany

pub unsafe extern "C" fn MQTTAsync_subscribeMany(
    handle: MQTTAsync, 
    count: c_int, 
    topic: *const *mut c_char, 
    qos: *mut c_int, 
    response: *mut MQTTAsync_responseOptions
) -> c_int

This function attempts to subscribe a client to a list of topics, which may contain wildcards (see @ref wildcard). This call also specifies the @ref qos requested for each topic (see also MQTTAsync_subscribe()). @param handle A valid client handle from a successful call to MQTTAsync_create(). @param count The number of topics for which the client is requesting subscriptions. @param topic An array (of length count) of pointers to topics, each of which may include wildcards. @param qos An array (of length count) of @ref qos values. qos[n] is the requested QoS for topic[n]. @param response A pointer to a response options structure. Used to set callback functions. @return ::MQTTASYNC_SUCCESS if the subscription request is successful. An error code is returned if there was a problem registering the subscriptions.