void exec()
{
fmi2Flag = fmu.doStep(c, time.to_seconds(), h.to_seconds(), fmi2True);
if (fmi2Flag == fmi2Discard) {
fmi2Boolean b;
// check if model requests to end simulation
if (fmi2OK != fmu.getBooleanStatus(c, fmi2Terminated, &b)) {
return SC_REPORT_ERROR(name(),"could not complete simulation of the model. getBooleanStatus return other than fmi2OK");
}
if (b == fmi2True) {
return SC_REPORT_ERROR(name(),"the model requested to end the simulation");
}
return SC_REPORT_ERROR(name(),"could not complete simulation of the model");
}
if (fmi2Flag != fmi2OK)
return SC_REPORT_ERROR(name(),"could not complete simulation of the model");
// FIXME: res = outputRow(fmu, c, time, file, separator, fmi2False); // output values for this step
auto res = getRealOutput(&fmu, c, output_index);
oval = sub_signal(time, time+h,
[this,res](const sc_time& t)
{
return res;
}
);
}
// simulate the given FMU from tStart = 0 to tEnd.
static int simulate(FMU* fmu, double tEnd, double h, fmi2Boolean loggingOn, char separator,
int nCategories, const fmi2String categories[]) {
double time;
double tStart = 0; // start time
const char *guid; // global unique id of the fmu
const char *instanceName; // instance name
fmi2Component c; // instance of the fmu
fmi2Status fmi2Flag; // return code of the fmu functions
char *fmuResourceLocation = getTempResourcesLocation(); // path to the fmu resources as URL, "file://C:\QTronic\sales"
fmi2Boolean visible = fmi2False; // no simulator user interface
fmi2CallbackFunctions callbacks = {fmuLogger, calloc, free, NULL, fmu}; // called by the model during simulation
ModelDescription* md; // handle to the parsed XML file
fmi2Boolean toleranceDefined = fmi2False; // true if model description define tolerance
fmi2Real tolerance = 0; // used in setting up the experiment
ValueStatus vs = 0;
int nSteps = 0;
Element *defaultExp;
FILE* file;
// instantiate the fmu
md = fmu->modelDescription;
guid = getAttributeValue((Element *)md, att_guid);
instanceName = getAttributeValue((Element *)getCoSimulation(md), att_modelIdentifier);
c = fmu->instantiate(instanceName, fmi2CoSimulation, guid, fmuResourceLocation,
&callbacks, visible, loggingOn);
free(fmuResourceLocation);
if (!c) return error("could not instantiate model");
if (nCategories > 0) {
fmi2Flag = fmu->setDebugLogging(c, fmi2True, nCategories, categories);
if (fmi2Flag > fmi2Warning) {
return error("could not initialize model; failed FMI set debug logging");
}
}
defaultExp = getDefaultExperiment(md);
if (defaultExp) tolerance = getAttributeDouble(defaultExp, att_tolerance, &vs);
if (vs == valueDefined) {
toleranceDefined = fmi2True;
}
fmi2Flag = fmu->setupExperiment(c, toleranceDefined, tolerance, tStart, fmi2True, tEnd);
if (fmi2Flag > fmi2Warning) {
return error("could not initialize model; failed FMI setup experiment");
}
fmi2Flag = fmu->enterInitializationMode(c);
if (fmi2Flag > fmi2Warning) {
return error("could not initialize model; failed FMI enter initialization mode");
}
fmi2Flag = fmu->exitInitializationMode(c);
if (fmi2Flag > fmi2Warning) {
return error("could not initialize model; failed FMI exit initialization mode");
}
// open result file
if (!(file = fopen(RESULT_FILE, "w"))) {
printf("could not write %s because:\n", RESULT_FILE);
printf(" %s\n", strerror(errno));
return 0; // failure
}
// output solution for time t0
outputRow(fmu, c, tStart, file, separator, fmi2True); // output column names
outputRow(fmu, c, tStart, file, separator, fmi2False); // output values
// enter the simulation loop
time = tStart;
while (time < tEnd) {
fmi2Flag = fmu->doStep(c, time, h, fmi2True);
if (fmi2Flag == fmi2Discard) {
fmi2Boolean b;
// check if model requests to end simulation
if (fmi2OK != fmu->getBooleanStatus(c, fmi2Terminated, &b)) {
return error("could not complete simulation of the model. getBooleanStatus return other than fmi2OK");
}
if (b == fmi2True) {
return error("the model requested to end the simulation");
}
return error("could not complete simulation of the model");
}
if (fmi2Flag != fmi2OK) return error("could not complete simulation of the model");
time += h;
outputRow(fmu, c, time, file, separator, fmi2False); // output values for this step
nSteps++;
}
// end simulation
fmu->terminate(c);
fmu->freeInstance(c);
fclose(file);
// print simulation summary
printf("Simulation from %g to %g terminated successful\n", tStart, tEnd);
printf(" steps ............ %d\n", nSteps);
printf(" fixed step size .. %g\n", h);
return 1; // success
}