io.trino.spiller.LocalSpillContext Maven / Gradle / Ivy
/*
* 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.trino.spiller;
import com.google.errorprone.annotations.ThreadSafe;
import io.trino.operator.SpillContext;
import static com.google.common.base.Preconditions.checkState;
@ThreadSafe
public final class LocalSpillContext
implements SpillContext
{
private final SpillContext parentSpillContext;
private long spilledBytes;
private boolean closed;
public LocalSpillContext(SpillContext parentSpillContext)
{
this.parentSpillContext = parentSpillContext;
}
@Override
public synchronized void updateBytes(long bytes)
{
checkState(!closed, "Already closed");
parentSpillContext.updateBytes(bytes);
spilledBytes += bytes;
}
@Override
public synchronized void close()
{
if (closed) {
return;
}
closed = true;
parentSpillContext.updateBytes(-spilledBytes);
}
}