Represents the Quality of Service (QoS) property of the PUBLISH packets.
enum qos_e
|
Name |
Description |
|---|---|
|
at_most_once |
The message arrives at the receiver either once or not at all. |
|
at_least_once |
Ensures the message arrives at the receiver at least once. |
|
exactly_once |
All messages arrive at the receiver exactly once without loss or duplication of the messages. |
Determines how the PUBLISH packets are delivered from
the sender to the receiver.
Header: async_mqtt5/types.hpp
Convenience header: async_mqtt5.hpp