MQTT_MESSAGE_HANDLE mqttmessage_create_in_place()

in src/mqtt_message.c [46:76]

• 27 lines of code
• 4 McCabe index (conditional complexity)

MQTT_MESSAGE_HANDLE mqttmessage_create_in_place(uint16_t packetId, const char* topicName, QOS_VALUE qosValue, const uint8_t* appMsg, size_t appMsgLength)
{
    /* Codes_SRS_MQTTMESSAGE_07_026: [If the parameters topicName is NULL then mqttmessage_create_in_place shall return NULL.].] */
    MQTT_MESSAGE* result;
    if (topicName == NULL)
    {
        LogError("Invalid Parameter topicName: %p, packetId: %d.", topicName, packetId);
        result = NULL;
    }
    else
    {
        result = create_msg_object(packetId, qosValue);
        if (result == NULL)
        {
            /* Codes_SRS_MQTTMESSAGE_07_028: [If any memory allocation fails mqttmessage_create_in_place shall free any allocated memory and return NULL.] */
            LogError("Failure creating message object");
        }
        else
        {
            /* Codes_SRS_MQTTMESSAGE_07_027: [mqttmessage_create_in_place shall use the a pointer to topicName or appMsg .] */
            result->const_topic_name = topicName;
            result->const_payload.length = appMsgLength;
            if (result->const_payload.length > 0)
            {
                result->const_payload.message = (uint8_t*)appMsg;
            }
        }
    }
    /* Codes_SRS_MQTTMESSAGE_07_029: [ Upon success, mqttmessage_create_in_place shall return a NON-NULL MQTT_MESSAGE_HANDLE value.] */
    return (MQTT_MESSAGE_HANDLE)result;
}