io.grpc.internal.TimeProvider Maven / Gradle / Ivy
/*
* Copyright 2017 The gRPC Authors
*
* 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 io.grpc.internal;
import java.util.concurrent.TimeUnit;
/**
* Time source representing the current system time in nanos. Used to inject a fake clock
* into unit tests.
*/
public interface TimeProvider {
/** Returns the current nano time. */
long currentTimeNanos();
TimeProvider SYSTEM_TIME_PROVIDER = new TimeProvider() {
@Override
public long currentTimeNanos() {
return TimeUnit.MILLISECONDS.toNanos(System.currentTimeMillis());
}
};
}