Allocator.java

/*
 * Copyright 2015 Odnoklassniki Ltd, Mail.Ru Group
 *
 * 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 one.nio.mem;

import static one.nio.util.JavaInternals.unsafe;

interface Allocator {
    long malloc(int size);
    void free(long address);
    void verify();

    static class Unsafe implements Allocator {

        @Override
        public long malloc(int size) {
            return unsafe.allocateMemory(size);
        }

        @Override
        public void free(long address) {
            unsafe.freeMemory(address);
        }

        @Override
        public void verify() {
            // Nothing to do
        }
    }

    static class Malloc extends one.nio.mem.Malloc implements Allocator {
        Malloc(long capacity) {
            super(capacity);
        }
    }

    static class MallocMT extends one.nio.mem.MallocMT implements Allocator {
        MallocMT(long capacity) {
            super(capacity);
        }
    }
}