iotc_mqtt_retain_t
MQTT Retain flag For details see Oasis MQTT Variable header / Retain flag specs http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718030
enum	iotc_mqtt_retain_e { IOTC_MQTT_RETAIN_FALSE = 0, IOTC_MQTT_RETAIN_TRUE = 1 }

typedef enum iotc_mqtt_retain_e	iotc_mqtt_retain_t

iotc_mqtt_qos_t
MQTT Quality of Service levels For details see Oasis MQTT QoS specs http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718099
enum	iotc_mqtt_qos_e { IOTC_MQTT_QOS_AT_MOST_ONCE = 0, IOTC_MQTT_QOS_AT_LEAST_ONCE = 1, IOTC_MQTT_QOS_EXACTLY_ONCE = 2 }

typedef enum iotc_mqtt_qos_e	iotc_mqtt_qos_t

iotc_mqtt_suback_status_t
MQTT SUBACK status For details see Oasis MQTT SUBACK payload http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718068
enum	iotc_mqtt_suback_status_e { IOTC_MQTT_QOS_0_GRANTED = 0x00, IOTC_MQTT_QOS_1_GRANTED = 0x01, IOTC_MQTT_QOS_2_GRANTED = 0x02, IOTC_MQTT_SUBACK_FAILED = 0x80 }

typedef enum iotc_mqtt_suback_status_e	iotc_mqtt_suback_status_t

iotc_mqtt_dup_t
MQTT DUP flag For details see Oasis MQTT DUP flag http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718038
enum	iotc_mqtt_dup_e { IOTC_MQTT_DUP_FALSE = 0, IOTC_MQTT_DUP_TRUE = 1 }

typedef enum iotc_mqtt_dup_e	iotc_mqtt_dup_t