Representation of the Retain Handling Subscribe Option.
enum retain_handling_e
|
Name |
Description |
|---|---|
|
send |
Send retained messages at the time of subscribe. |
|
new_subscription_only |
Send retained message only if the subscription does not currently exist. |
|
not_send |
Do not send retained messages at the time of subscribe. |
A Subscribe Option specifying whether retained messages are sent when the subscription is established.
Header: async_mqtt5/types.hpp
Convenience header: async_mqtt5.hpp