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Add function to group object to send a value only if it was changed.

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Michael Geramb 2024-04-17 19:21:27 +02:00 committed by Michael Geramb
parent 7cbc0d8fff
commit a330699a0e
2 changed files with 23 additions and 0 deletions
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10
src/knx/group_object.cpp
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@ -310,4 +310,14 @@ bool GroupObject::valueNoSendCompare(const KNXValue& value, const Dpt& type)
return dataChanged;
}
}
bool GroupObject::valueCompare(const KNXValue& value, const Dpt& type)
{
if (valueNoSendCompare(value, type))
{
objectWritten();
return true;
}
return false;
}

13
src/knx/group_object.h
View File

@ -173,6 +173,19 @@ class GroupObject
* The parameters must fit the group object. Otherwise it will stay unchanged.
*/
void value(const KNXValue& value, const Dpt& type);
/**
* Check if the value (after conversion to dpt) will differ from current value of the group object and changes the state of the group object to ::WriteRequest if different.
* Use this method only, when the value should not be sent if it was not changed, otherwise value(const KNXValue&, const Dpt&) will do the same (without overhead for comparing)
* @param value the value the group object is set to
* @param type the datapoint type used for the conversion.
*
* The parameters must fit the group object. Otherwise it will stay unchanged.
*
* @returns true if the value of the group object has changed
*/
bool valueCompare(const KNXValue& value, const Dpt& type);
/**
* set the current value of the group object.
* @param value the value the group object is set to