CAPLfunctionAREthIsOptional

AREthIsOptional

Valid for: CANoe DE • CANoe4SW DE

Function Syntax

dword AREthIsOptional(dword objectHandle, char memberPath[]);

Description

This function can be used to read out if a parameter or member of the object, specified in the objectHandle parameter, is optional or mandatory. The value is accessed in this case via symbolic access paths.

Parameters

• objectHandle: Handle to an AUTOSAR Eth IL object, which must be completely described in the FIBEX database. The following objects are supported:

  • Messages
  • Fields
  • Method calls: Handle to a method call that was created with AREthCreateMethodCall.

• memberPath: Access path of the parameter or member to be read out.

Return Values

• 0: If parameter or member is mandatory
• 1: If parameter or member is optional

Example

void Initialize()
{
  dword aep; // application endpoint handle
  dword psi; // provided service handle
  dword peg; // provided eventgroup handle
  dword pev; // provided event handle

  // open application endpoint
  aep = AREthOpenLocalApplicationEndpoint(17, 50002);

  // create service instance
  psi = AREthCreateProvidedServiceInstance(aep,10,1);

  // create eventgroup
  peg = AREthAddProvidedEventGroup(psi,1);

  // create event and add event to eventgroup
  pev = AREthAddEvent(psi, 1, "OnPrepareEvent1");
  AREthAddEventToEventgroup(peg, pev);

  // ensure that event is sent cyclically
  AREthSetProperty(pev,"CycleTimeMs",1000);
}

void OnPrepareEvent1(dword eventHandle, dword messageHandle)
{
  WORD isOpt; // return value if parameter or member is optional
  // this function is called before the event is sent. Parameters
  // can be specified here.
  // set parameter "value1" of struct "param1" only if it is mandatory

  // get if member is optional or mandatory
  isOpt = AREthIsOptional(messageHandle,"param1.value1");

  if(isOpt == 0)
  {
    AREthSetValueDWord(messageHandle,"param1.value1",7);
  }
}

See Also

• AREthGetData
• AREthIsOptional
• AREthSerializeMessage
• AREthSetData
• SomeIpIsOptional