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coreMQTT: Constants
Constants defined in the MQTT library. More...
#define MQTT_PACKET_ID_INVALID ( ( uint16_t ) 0U ) Invalid packet identifier.
#define MQTT_SUB_UNSUB_MAX_VECTORS ( 4U ) Maximum number of vectors in subscribe and unsubscribe packet.
#define MQTT_PACKET_TYPE_CONNECT ( ( uint8_t ) 0x10U ) CONNECT (client-to-server).
#define MQTT_PACKET_TYPE_CONNACK ( ( uint8_t ) 0x20U ) CONNACK (server-to-client).
#define MQTT_PACKET_TYPE_PUBLISH ( ( uint8_t ) 0x30U ) PUBLISH (bidirectional).
#define MQTT_PACKET_TYPE_PUBACK ( ( uint8_t ) 0x40U ) PUBACK (bidirectional).
#define MQTT_PACKET_TYPE_PUBREC ( ( uint8_t ) 0x50U ) PUBREC (bidirectional).
#define MQTT_PACKET_TYPE_PUBREL ( ( uint8_t ) 0x62U ) PUBREL (bidirectional).
#define MQTT_PACKET_TYPE_PUBCOMP ( ( uint8_t ) 0x70U ) PUBCOMP (bidirectional).
#define MQTT_PACKET_TYPE_SUBSCRIBE ( ( uint8_t ) 0x82U ) SUBSCRIBE (client-to-server).
#define MQTT_PACKET_TYPE_SUBACK ( ( uint8_t ) 0x90U ) SUBACK (server-to-client).
#define MQTT_PACKET_TYPE_UNSUBSCRIBE ( ( uint8_t ) 0xA2U ) UNSUBSCRIBE (client-to-server).
#define MQTT_PACKET_TYPE_UNSUBACK ( ( uint8_t ) 0xB0U ) UNSUBACK (server-to-client).
#define MQTT_PACKET_TYPE_PINGREQ ( ( uint8_t ) 0xC0U ) PINGREQ (client-to-server).
#define MQTT_PACKET_TYPE_PINGRESP ( ( uint8_t ) 0xD0U ) PINGRESP (server-to-client).
#define MQTT_PACKET_TYPE_DISCONNECT ( ( uint8_t ) 0xE0U ) DISCONNECT (client-to-server).
#define MQTT_PUBLISH_ACK_PACKET_SIZE ( 4UL ) The size of MQTT PUBACK, PUBREC, PUBREL, and PUBCOMP packets, per MQTT spec.
#define MQTT_STATE_CURSOR_INITIALIZER ( ( size_t ) 0 ) Initializer value for an MQTTStateCursor_t, indicating a search should start at the beginning of a state record array.
Constants defined in the MQTT library.
◆ MQTT_PACKET_ID_INVALID #define MQTT_PACKET_ID_INVALID ( ( uint16_t ) 0U )
Invalid packet identifier.
Zero is an invalid packet identifier as per MQTT v3.1.1 spec.
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