coreMQTT  v1.1.0
MQTT 3.1.1 Client Library
core_mqtt_state.h
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22 
27 #ifndef CORE_MQTT_STATE_H
28 #define CORE_MQTT_STATE_H
29 
30 #include "core_mqtt.h"
31 
37 #define MQTT_STATE_CURSOR_INITIALIZER ( ( size_t ) 0 )
38 
43 typedef size_t MQTTStateCursor_t;
44 
51 typedef enum MQTTStateOperation
52 {
53  MQTT_SEND,
54  MQTT_RECEIVE
55 } MQTTStateOperation_t;
74  uint16_t packetId,
75  MQTTQoS_t qos );
92 MQTTPublishState_t MQTT_CalculateStatePublish( MQTTStateOperation_t opType,
93  MQTTQoS_t qos );
115  uint16_t packetId,
116  MQTTStateOperation_t opType,
117  MQTTQoS_t qos,
118  MQTTPublishState_t * pNewState );
137  MQTTStateOperation_t opType,
138  MQTTQoS_t qos );
162  uint16_t packetId,
163  MQTTPubAckType_t packetType,
164  MQTTStateOperation_t opType,
165  MQTTPublishState_t * pNewState );
186 uint16_t MQTT_PubrelToResend( const MQTTContext_t * pMqttContext,
187  MQTTStateCursor_t * pCursor,
188  MQTTPublishState_t * pState );
257 /* @[declare_mqtt_publishtoresend] */
258 uint16_t MQTT_PublishToResend( const MQTTContext_t * pMqttContext,
259  MQTTStateCursor_t * pCursor );
260 /* @[declare_mqtt_publishtoresend] */
261 
275 const char * MQTT_State_strerror( MQTTPublishState_t state );
278 #endif /* ifndef CORE_MQTT_STATE_H */
MQTTPublishState_t
MQTTPublishState_t
The state of QoS 1 or QoS 2 MQTT publishes, used in the state engine.
Definition: core_mqtt.h:109
MQTT_PubrelToResend
uint16_t MQTT_PubrelToResend(const MQTTContext_t *pMqttContext, MQTTStateCursor_t *pCursor, MQTTPublishState_t *pState)
Get the packet ID of next pending PUBREL ack to be resent.
Definition: core_mqtt_state.c:989
MQTT_UpdateStatePublish
MQTTStatus_t MQTT_UpdateStatePublish(MQTTContext_t *pMqttContext, uint16_t packetId, MQTTStateOperation_t opType, MQTTQoS_t qos, MQTTPublishState_t *pNewState)
Update the state record for a PUBLISH packet.
Definition: core_mqtt_state.c:842
MQTT_PublishToResend
uint16_t MQTT_PublishToResend(const MQTTContext_t *pMqttContext, MQTTStateCursor_t *pCursor)
Get the packet ID of next pending publish to be resent.
Definition: core_mqtt_state.c:1025
MQTTStateCursor_t
size_t MQTTStateCursor_t
Cursor for iterating through state records.
Definition: core_mqtt_state.h:43
MQTT_ReserveState
MQTTStatus_t MQTT_ReserveState(MQTTContext_t *pMqttContext, uint16_t packetId, MQTTQoS_t qos)
Reserve an entry for an outgoing QoS 1 or Qos 2 publish.
Definition: core_mqtt_state.c:784
MQTTPubAckType_t
MQTTPubAckType_t
Packet types used in acknowledging QoS 1 or QoS 2 publishes.
Definition: core_mqtt.h:128
MQTTStatus_t
MQTTStatus_t
Return codes from MQTT functions.
Definition: core_mqtt_serializer.h:91
MQTT_CalculateStatePublish
MQTTPublishState_t MQTT_CalculateStatePublish(MQTTStateOperation_t opType, MQTTQoS_t qos)
Calculate the new state for a publish from its qos and operation type.
Definition: core_mqtt_state.c:813
core_mqtt.h
User-facing functions of the MQTT 3.1.1 library.
MQTT_CalculateStateAck
MQTTPublishState_t MQTT_CalculateStateAck(MQTTPubAckType_t packetType, MQTTStateOperation_t opType, MQTTQoS_t qos)
Calculate the state from a PUBACK, PUBREC, PUBREL, or PUBCOMP.
Definition: core_mqtt_state.c:620
MQTTContext_t
A struct representing an MQTT connection.
Definition: core_mqtt.h:163
MQTTQoS_t
MQTTQoS_t
MQTT Quality of Service values.
Definition: core_mqtt_serializer.h:110
MQTT_UpdateStateAck
MQTTStatus_t MQTT_UpdateStateAck(MQTTContext_t *pMqttContext, uint16_t packetId, MQTTPubAckType_t packetType, MQTTStateOperation_t opType, MQTTPublishState_t *pNewState)
Update the state record for an ACKed publish.
Definition: core_mqtt_state.c:916
MQTT_State_strerror
const char * MQTT_State_strerror(MQTTPublishState_t state)
State to string conversion for state engine.
Definition: core_mqtt_state.c:1055