| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.harmony.nio.internal; |
| |
| import java.io.IOException; |
| import java.nio.MappedByteBuffer; |
| |
| import org.apache.harmony.luni.platform.IMemorySystem; |
| |
| public final class ReadWriteFileChannel extends FileChannelImpl { |
| public ReadWriteFileChannel(Object stream, long handle) { |
| super(stream, handle); |
| } |
| |
| public final MappedByteBuffer map(MapMode mode, long position, long size) |
| throws IOException { |
| openCheck(); |
| if (mode == null) { |
| throw new NullPointerException(); |
| } |
| if (position < 0 || size < 0 || size > Integer.MAX_VALUE) { |
| throw new IllegalArgumentException(); |
| } |
| int mapMode; |
| if (mode == MapMode.READ_ONLY) { |
| mapMode = IMemorySystem.MMAP_READ_ONLY; |
| } else if (mode == MapMode.READ_WRITE) { |
| mapMode = IMemorySystem.MMAP_READ_WRITE; |
| } else { |
| mapMode = IMemorySystem.MMAP_WRITE_COPY; |
| } |
| return mapImpl(mapMode, position, size); |
| } |
| } |