JNIEXPORT void JNICALL Java_com_fazecast_jSerialComm_SerialPort_retrievePortDetails()

in src/main/c/Windows/SerialPort_Windows.c [798:861]

• 57 lines of code
• 21 McCabe index (conditional complexity)

JNIEXPORT void JNICALL Java_com_fazecast_jSerialComm_SerialPort_retrievePortDetails(JNIEnv *env, jobject obj)
{
	// Retrieve the serial port parameter fields
	jstring portNameJString = (jstring)(*env)->GetObjectField(env, obj, comPortField);
	if (checkJniError(env, __LINE__ - 1)) return;
	const wchar_t *portName = (wchar_t*)(*env)->GetStringChars(env, portNameJString, NULL);
	if (checkJniError(env, __LINE__ - 1)) return;

	// Ensure that the serial port exists
	char continueRetrieval = 1;
	EnterCriticalSection(&criticalSection);
	if (!portsEnumerated)
		enumeratePorts(env);
	serialPort *port = fetchPort(&serialPorts, portName);
	if (!port)
		continueRetrieval = 0;

	// Fill in the Java-side port details
	if (continueRetrieval)
	{
		(*env)->SetObjectField(env, obj, friendlyNameField, (*env)->NewString(env, (jchar*)port->friendlyName, wcslen(port->friendlyName)));
		if (checkJniError(env, __LINE__ - 1)) continueRetrieval = 0;
	}
	if (continueRetrieval)
	{
		(*env)->SetObjectField(env, obj, portDescriptionField, (*env)->NewString(env, (jchar*)port->portDescription, wcslen(port->portDescription)));
		if (checkJniError(env, __LINE__ - 1)) continueRetrieval = 0;
	}
	if (continueRetrieval)
	{
		(*env)->SetObjectField(env, obj, portLocationField, (*env)->NewString(env, (jchar*)port->portLocation, wcslen(port->portLocation)));
		if (checkJniError(env, __LINE__ - 1)) continueRetrieval = 0;
	}
	if (continueRetrieval)
	{
		(*env)->SetObjectField(env, obj, serialNumberField, (*env)->NewString(env, (jchar*)port->serialNumber, wcslen(port->serialNumber)));
		if (checkJniError(env, __LINE__ - 1)) continueRetrieval = 0;
	}
	if (continueRetrieval)
	{
		(*env)->SetObjectField(env, obj, manufacturerField, (*env)->NewString(env, (jchar*)port->manufacturer, wcslen(port->manufacturer)));
		if (checkJniError(env, __LINE__ - 1)) continueRetrieval = 0;
	}
	if (continueRetrieval)
	{
		(*env)->SetObjectField(env, obj, deviceDriverField, (*env)->NewString(env, (jchar*)port->deviceDriver, wcslen(port->deviceDriver)));
		if (checkJniError(env, __LINE__ - 1)) continueRetrieval = 0;
	}
	if (continueRetrieval)
	{
		(*env)->SetIntField(env, obj, vendorIdField, port->vendorID);
		if (checkJniError(env, __LINE__ - 1)) continueRetrieval = 0;
	}
	if (continueRetrieval)
	{
		(*env)->SetIntField(env, obj, productIdField, port->productID);
		if (checkJniError(env, __LINE__ - 1)) continueRetrieval = 0;
	}

	// Release all JNI structures
	LeaveCriticalSection(&criticalSection);
	(*env)->ReleaseStringChars(env, portNameJString, (const jchar*)portName);
	checkJniError(env, __LINE__ - 1);
}