| /* |
| * |
| * 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.crail.storage.rdma.client; |
| |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| |
| import org.apache.crail.storage.StorageFuture; |
| import org.apache.crail.storage.StorageResult; |
| |
| import sun.misc.Unsafe; |
| |
| public class RdmaLocalFuture implements StorageFuture, StorageResult { |
| private Unsafe unsafe; |
| private long srcAddr; |
| private long dstAddr; |
| private int remaining; |
| |
| private int len; |
| private boolean isDone; |
| |
| public RdmaLocalFuture(Unsafe unsafe, long srcAddr, long dstAddr, int remaining) { |
| this.unsafe = unsafe; |
| this.srcAddr = srcAddr; |
| this.dstAddr = dstAddr; |
| this.remaining = remaining; |
| |
| this.len = 0; |
| this.isDone = false; |
| } |
| |
| |
| @Override |
| public int getLen() { |
| return len; |
| } |
| |
| @Override |
| public boolean cancel(boolean mayInterruptIfRunning) { |
| return false; |
| } |
| |
| @Override |
| public boolean isCancelled() { |
| return false; |
| } |
| |
| @Override |
| public boolean isDone() { |
| if (!isDone){ |
| getDone(); |
| } |
| return isDone; |
| } |
| |
| @Override |
| public StorageResult get() throws InterruptedException, ExecutionException { |
| if (!isDone){ |
| getDone(); |
| } |
| return this; |
| } |
| |
| @Override |
| public StorageResult get(long timeout, TimeUnit unit) |
| throws InterruptedException, ExecutionException, TimeoutException { |
| if (!isDone){ |
| getDone(); |
| } |
| return this; |
| } |
| |
| @Override |
| public boolean isSynchronous() { |
| return true; |
| } |
| |
| void getDone(){ |
| unsafe.copyMemory(srcAddr, dstAddr, remaining); |
| len = remaining; |
| isDone = true; |
| } |
| } |