gradle-master/subprojects/process-services/src/main/java/org/gradle/process/internal/health/memory/MemoryHolder.java
/*
 * Copyright 2016 the original author or 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 org.gradle.process.internal.health.memory;

/**
 * Memory holder.
 */
public interface MemoryHolder {

    /**
     * Attempt to release system memory.
     *
     * @param memoryAmountBytes The amount of system memory to release.
     * @return The amount of released system memory
     * @throws IllegalArgumentException if memoryAmountBytes is negative
     */
    long attemptToRelease(long memoryAmountBytes) throws IllegalArgumentException;

}
