Struct Config 

pub struct Config<'a> {
    pub host: &'a [u8],
    pub port: u16,
    pub client_id: &'a [u8],
    pub username: Option<&'a [u8]>,
    pub password: Option<&'a [u8]>,
    pub keep_alive_s: u16,
    pub use_tls: bool,
}

MQTT connection configuration.

String fields (host, client_id, username, password) must be null-terminated byte slices.

Fields

host: &'a [u8]

Broker hostname or IP (null-terminated).

port: u16

Broker port (typically 1883 or 8883 for TLS).

client_id: &'a [u8]

Client identifier (null-terminated).

username: Option<&'a [u8]>

Username for authentication (null-terminated, or None).

password: Option<&'a [u8]>

Password for authentication (null-terminated, or None).

keep_alive_s: u16

Keep-alive interval in seconds.

use_tls: bool

Whether to use TLS for the connection.