coreMQTT v1.2.0
MQTT 3.1.1 Client Library
core_mqtt_state.h
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2 * coreMQTT v1.2.0
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22
27#ifndef CORE_MQTT_STATE_H
28#define CORE_MQTT_STATE_H
29
30/* *INDENT-OFF* */
31#ifdef __cplusplus
32 extern "C" {
33#endif
34/* *INDENT-ON* */
35
36#include "core_mqtt.h"
37
43#define MQTT_STATE_CURSOR_INITIALIZER ( ( size_t ) 0 )
44
49typedef size_t MQTTStateCursor_t;
50
57typedef enum MQTTStateOperation
58{
59 MQTT_SEND,
60 MQTT_RECEIVE
61} MQTTStateOperation_t;
80 uint16_t packetId,
81 MQTTQoS_t qos );
98MQTTPublishState_t MQTT_CalculateStatePublish( MQTTStateOperation_t opType,
99 MQTTQoS_t qos );
121 uint16_t packetId,
122 MQTTStateOperation_t opType,
123 MQTTQoS_t qos,
124 MQTTPublishState_t * pNewState );
143 MQTTStateOperation_t opType,
144 MQTTQoS_t qos );
168 uint16_t packetId,
169 MQTTPubAckType_t packetType,
170 MQTTStateOperation_t opType,
171 MQTTPublishState_t * pNewState );
192uint16_t MQTT_PubrelToResend( const MQTTContext_t * pMqttContext,
193 MQTTStateCursor_t * pCursor,
194 MQTTPublishState_t * pState );
263/* @[declare_mqtt_publishtoresend] */
264uint16_t MQTT_PublishToResend( const MQTTContext_t * pMqttContext,
265 MQTTStateCursor_t * pCursor );
266/* @[declare_mqtt_publishtoresend] */
267
281const char * MQTT_State_strerror( MQTTPublishState_t state );
284/* *INDENT-OFF* */
285#ifdef __cplusplus
286 }
287#endif
288/* *INDENT-ON* */
289
290#endif /* ifndef CORE_MQTT_STATE_H */
User-facing functions of the MQTT 3.1.1 library.
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:850
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:628
const char * MQTT_State_strerror(MQTTPublishState_t state)
State to string conversion for state engine.
Definition: core_mqtt_state.c:1063
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:821
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:792
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:997
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:924
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:1033
size_t MQTTStateCursor_t
Cursor for iterating through state records.
Definition: core_mqtt_state.h:49
MQTTPublishState_t
The state of QoS 1 or QoS 2 MQTT publishes, used in the state engine.
Definition: core_mqtt.h:115
MQTTPubAckType_t
Packet types used in acknowledging QoS 1 or QoS 2 publishes.
Definition: core_mqtt.h:134
MQTTStatus_t
Return codes from MQTT functions.
Definition: core_mqtt_serializer.h:97
MQTTQoS_t
MQTT Quality of Service values.
Definition: core_mqtt_serializer.h:116
A struct representing an MQTT connection.
Definition: core_mqtt.h:169