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Diffstat (limited to 'common/framework/com/android/net/module/util/BinderUtils.java')
-rw-r--r--common/framework/com/android/net/module/util/BinderUtils.java96
1 files changed, 0 insertions, 96 deletions
diff --git a/common/framework/com/android/net/module/util/BinderUtils.java b/common/framework/com/android/net/module/util/BinderUtils.java
deleted file mode 100644
index e4d14ea8..00000000
--- a/common/framework/com/android/net/module/util/BinderUtils.java
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.net.module.util;
-
-import android.annotation.NonNull;
-import android.os.Binder;
-
-import java.util.function.Supplier;
-
-/**
- * Collection of utilities for {@link Binder} and related classes.
- * @hide
- */
-public class BinderUtils {
- /**
- * Convenience method for running the provided action enclosed in
- * {@link Binder#clearCallingIdentity}/{@link Binder#restoreCallingIdentity}
- *
- * Any exception thrown by the given action will be caught and rethrown after the call to
- * {@link Binder#restoreCallingIdentity}
- *
- * Note that this is copied from Binder#withCleanCallingIdentity with minor changes
- * since it is not public.
- *
- * @hide
- */
- public static final <T extends Exception> void withCleanCallingIdentity(
- @NonNull ThrowingRunnable<T> action) throws T {
- final long callingIdentity = Binder.clearCallingIdentity();
- try {
- action.run();
- } finally {
- Binder.restoreCallingIdentity(callingIdentity);
- }
- }
-
- /**
- * Like a Runnable, but declared to throw an exception.
- *
- * @param <T> The exception class which is declared to be thrown.
- */
- @FunctionalInterface
- public interface ThrowingRunnable<T extends Exception> {
- /** @see java.lang.Runnable */
- void run() throws T;
- }
-
- /**
- * Convenience method for running the provided action enclosed in
- * {@link Binder#clearCallingIdentity}/{@link Binder#restoreCallingIdentity} returning the
- * result.
- *
- * <p>Any exception thrown by the given action will be caught and rethrown after
- * the call to {@link Binder#restoreCallingIdentity}.
- *
- * Note that this is copied from Binder#withCleanCallingIdentity with minor changes
- * since it is not public.
- *
- * @hide
- */
- public static final <T, E extends Exception> T withCleanCallingIdentity(
- @NonNull ThrowingSupplier<T, E> action) throws E {
- final long callingIdentity = Binder.clearCallingIdentity();
- try {
- return action.get();
- } finally {
- Binder.restoreCallingIdentity(callingIdentity);
- }
- }
-
- /**
- * An equivalent of {@link Supplier}
- *
- * @param <T> The class which is declared to be returned.
- * @param <E> The exception class which is declared to be thrown.
- */
- @FunctionalInterface
- public interface ThrowingSupplier<T, E extends Exception> {
- /** @see java.util.function.Supplier */
- T get() throws E;
- }
-}