Use defaultPassthroughServiceImplementation for nfc.

#define LOG_TAG "android.hardware.nfc@1.0-service"

#include <utils/Log.h>

#include <iostream>

#include <unistd.h>

#include <android/hardware/nfc/1.0/INfc.h>

#include <hidl/IServiceManager.h>

#include <hwbinder/IPCThreadState.h>

#include <hwbinder/ProcessState.h>

#include <utils/Errors.h>

#include <utils/StrongPointer.h>

using android::sp;

// libhwbinder:

using android::hardware::IPCThreadState;

using android::hardware::ProcessState;

#include <hidl/LegacySupport.h>

// Generated HIDL files

using android::hardware::nfc::V1_0::INfc;

using android::hardware::defaultPassthroughServiceImplementation;

int main() {

    ALOGI("Service is starting.");

    const char instance[] = "nfc_nci";

    ALOGI("Retrieving default implementation of instance %s.",

          instance);

    android::sp<INfc> service = INfc::getService(instance, true /* getStub */);

    if (service.get() == nullptr) {

        ALOGE("INfc::getService returned NULL, exiting");

        return -1;

    }

    ALOGI("Default implementation using %s is %s",

          instance, (service->isRemote() ? "REMOTE" : "LOCAL"));

    LOG_FATAL_IF(service->isRemote(), "Implementation is REMOTE!");

    ALOGI("Registering instance %s.", instance);

    service->registerAsService(instance);

    ALOGI("Ready.");

    ProcessState::self()->setThreadPoolMaxThreadCount(0);

    ProcessState::self()->startThreadPool();

    IPCThreadState::self()->joinThreadPool();

    return defaultPassthroughServiceImplementation<INfc>("nfc_nci");

}