IedServer_updateAttributeValue function call question

[black0592]

Shouldn't the checkForUpdateTrigger function be called only when the values are different? How to understand this? Why do I need to call update for the same value

void IedServer_updateAttributeValue(IedServer self, DataAttribute dataAttribute, MmsValue value) { assert(self != NULL); assert(dataAttribute != NULL); assert(MmsValue_getType(dataAttribute->mmsValue) == MmsValue_getType(value));

if (MmsValue_equals(dataAttribute->mmsValue, value))
    **checkForUpdateTrigger**(self, dataAttribute);
else {

    if (dataAttribute->type == IEC61850_BOOLEAN) {
        /* Special treatment because of transient option */
        IedServer_updateBooleanAttributeValue(self, dataAttribute, MmsValue_getBoolean(value));
    }
    else {

if (CONFIG_MMS_THREADLESS_STACK != 1)

        Semaphore_wait(self->dataModelLock);

endif

        MmsValue_update(dataAttribute->mmsValue, value);

if (CONFIG_MMS_THREADLESS_STACK != 1)

        Semaphore_post(self->dataModelLock);

endif

        checkForChangedTriggers(self, dataAttribute);
    }
}

}

[mzillgith]

There are some data attributes that have "dupd" (update) trigger conditions. These can cause a report when updated. But most attributes only have "dchg" (change) trigger conditions. It is up to your application if you update the attributes with "dchg" only when the value changes or whenever you do the update.