Merge "HwBinder: don't re-implement libhidl's getService" am: 992f9e7e0b (cb2bde9c) · Commits · e / os / android_frameworks_base

core/jni/Android.bp

+0 −9

Original line number	Diff line number	Diff line
		@@ -292,13 +292,4 @@ cc_library_shared {
		// GraphicsJNI.h includes hwui headers
		"libhwui",
		],

		product_variables: {
		debuggable: {
		cflags: ["-D__ANDROID_DEBUGGABLE__"]
		},
		treble: {
		cflags: ["-D__ANDROID_TREBLE__"]
		},
		},
		}

core/jni/android_os_HwBinder.cpp

+3 −54

Original line number	Diff line number	Diff line
		@@ -306,7 +306,7 @@ static jobject JHwBinder_native_getService(
		jstring serviceNameObj) {

		using ::android::hidl::base::V1_0::IBase;
		using ::android::hidl::manager::V1_0::IServiceManager;
		using ::android::hardware::details::getRawServiceInternal;

		if (ifaceNameObj == NULL) {
		jniThrowException(env, "java/lang/NullPointerException", NULL);
		@@ -317,22 +317,12 @@ static jobject JHwBinder_native_getService(
		return NULL;
		}

		auto manager = hardware::defaultServiceManager();

		if (manager == nullptr) {
		LOG(ERROR) << "Could not get hwservicemanager.";
		signalExceptionForError(env, UNKNOWN_ERROR, true /* canThrowRemoteException */);
		return NULL;
		}

		const char *ifaceNameCStr = env->GetStringUTFChars(ifaceNameObj, NULL);
		if (ifaceNameCStr == NULL) {
		return NULL; // XXX exception already pending?
		}
		std::string ifaceName(ifaceNameCStr);
		env->ReleaseStringUTFChars(ifaceNameObj, ifaceNameCStr);
		::android::hardware::hidl_string ifaceNameHStr;
		ifaceNameHStr.setToExternal(ifaceName.c_str(), ifaceName.size());

		const char *serviceNameCStr = env->GetStringUTFChars(serviceNameObj, NULL);
		if (serviceNameCStr == NULL) {
		@@ -340,50 +330,9 @@ static jobject JHwBinder_native_getService(
		}
		std::string serviceName(serviceNameCStr);
		env->ReleaseStringUTFChars(serviceNameObj, serviceNameCStr);
		::android::hardware::hidl_string serviceNameHStr;
		serviceNameHStr.setToExternal(serviceName.c_str(), serviceName.size());

		LOG(INFO) << "Looking for service "
		<< ifaceName
		<< "/"
		<< serviceName;

		Return<IServiceManager::Transport> transportRet =
		manager->getTransport(ifaceNameHStr, serviceNameHStr);

		if (!transportRet.isOk()) {
		signalExceptionForError(env, UNKNOWN_ERROR, true /* canThrowRemoteException */);
		return NULL;
		}

		IServiceManager::Transport transport = transportRet;

		#ifdef __ANDROID_TREBLE__
		#ifdef __ANDROID_DEBUGGABLE__
		const char* testingOverride = std::getenv("TREBLE_TESTING_OVERRIDE");
		const bool vintfLegacy = (transport == IServiceManager::Transport::EMPTY)
		&& testingOverride && !strcmp(testingOverride, "true");
		#else // __ANDROID_TREBLE__ but not __ANDROID_DEBUGGABLE__
		const bool vintfLegacy = false;
		#endif // __ANDROID_DEBUGGABLE__
		#else // not __ANDROID_TREBLE__
		const bool vintfLegacy = (transport == IServiceManager::Transport::EMPTY);
		#endif // __ANDROID_TREBLE__";

		if (transport != IServiceManager::Transport::HWBINDER && !vintfLegacy) {
		LOG(ERROR) << "service " << ifaceName << " declares transport method "
		<< toString(transport) << " but framework expects hwbinder.";
		signalExceptionForError(env, NAME_NOT_FOUND, true /* canThrowRemoteException */);
		return NULL;
		}

		Return<sp<hidl::base::V1_0::IBase>> ret = manager->get(ifaceNameHStr, serviceNameHStr);

		if (!ret.isOk()) {
		signalExceptionForError(env, UNKNOWN_ERROR, true /* canThrowRemoteException */);
		return NULL;
		}

		// TODO(b/67981006): true /* retry */
		sp<IBase> ret = getRawServiceInternal(ifaceName, serviceName, false /* retry /, false / getStub */);
		sp<hardware::IBinder> service = hardware::toBinder<hidl::base::V1_0::IBase>(ret);

		if (service == NULL) {