io.perfmark.java9.SecretVarHandleMarkHolderProvider Maven / Gradle / Ivy
/*
* Copyright 2019 Google LLC
*
* 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.perfmark.java9;
import io.perfmark.impl.Generator;
import io.perfmark.impl.MarkHolder;
import io.perfmark.impl.MarkHolderProvider;
final class SecretVarHandleMarkHolderProvider {
public static final class VarHandleMarkHolderProvider extends MarkHolderProvider {
public VarHandleMarkHolderProvider() {
// Do some basic operations to see if it works.
MarkHolder holder = create();
holder.start(1 << Generator.GEN_OFFSET, "bogus", 0);
holder.stop(1 << Generator.GEN_OFFSET, "bogus", 0);
int size = holder.read(false).size();
if (size != 2) {
throw new AssertionError("Wrong size " + size);
}
}
@Override
public MarkHolder create() {
return new VarHandleMarkHolder();
}
}
private SecretVarHandleMarkHolderProvider() {
throw new AssertionError("nope");
}
}