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AREthGetValueDWord

CAPL Functions » Ethernet » AUTOSAR Eth IL » AREthGetValueDWord Valid for: CANoe DE • CANoe4SW DE

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Function Syntax

dword AREthGetValueDWord( dword objectHandle, char valuePath[] );

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Description

This function can be used to read out a raw value from the object specified in the objectHandle parameter. The value is accessed in this case via symbolic access paths. Note:
  • A corresponding syntax must be adhered to for specifying the access paths. The access path results from the database description of the value to be read (see also Syntax for Database-based Access Paths).
  • The content of a Service Discovery message can also be read out with this function. Here, the value is accessed via a predefined access path (see also Syntax for Predefined SD Access Paths).

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Parameters

  • objectHandle: Handle to a AUTOSAR Eth IL object, which must be completely described in the FIBEX database. The following objects are supported:
  • valuePath: Access path of the value to be read out.

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Return Values

  • Raw value: In the event of an error, the function returns the value 0. The AREthGetLastError function can then be used to check whether the value is valid or an error has occurred.

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Example

variables
{
  dword gPm; // provided method handle
}

void Initialize()
{
  dword aep; // application endpoint handle
  dword psi; // provided service instance handle

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

  // create service instance
  psi = AREthCreateProvidedServiceInstance(aep,11,1);

  // create method
  gPm = AREthAddMethod(psi,31,"OnMethodRequest");
}

void OnMethodRequest(dword methodHandle,dword messageHandle,dword messageResponseHandle)
{
  WORD val1; // value of input parameter 1
  WORD val2; // value of input parameter 2
  dword res; // value of return parameter

  // get value from request
  val1 = (WORD)AREthGetValueDWord(messageHandle,"Member_value1");
  val2 = (WORD)AREthGetValueDWord(messageHandle,"Member_value2");

  // calculate result
  res = val1 + val2;

  // set response value
  AREthSetValueDWord(messageResponseHandle,"Result",(val1 + val2));
}
See Also