/*
* 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.ignite.internal.util.ipc.shmem;
import java.io.File;
import java.util.Collection;
import org.apache.ignite.IgniteSystemProperties;
import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
/**
*
*/
public class IpcSharedMemoryUtilsSelfTest extends GridCommonAbstractTest {
/** {@inheritDoc} */
@Override protected void beforeTestsStarted() throws Exception {
super.beforeTestsStarted();
IpcSharedMemoryNativeLoader.load(log());
}
/**
* @throws Exception If failed.
*/
public void testPid() throws Exception {
int pid = IpcSharedMemoryUtils.pid();
info("PID of the current process: " + pid);
assert IpcSharedMemoryUtils.alive(pid);
// PID cannot have this value.
assert !IpcSharedMemoryUtils.alive(Integer.MAX_VALUE) : "Alive PID: " + Integer.MAX_VALUE;
}
/**
* @throws Exception If failed.
*/
public void testIdsGet() throws Exception {
File tokFile = new File(IgniteSystemProperties.getString("java.io.tmpdir"), getTestIgniteInstanceName());
assert tokFile.createNewFile() || tokFile.exists();
String tok = tokFile.getAbsolutePath();
IpcSharedMemorySpace space = new IpcSharedMemorySpace(tok, IpcSharedMemoryUtils.pid(), 0, 128,
false, log);
info("Space: " + space);
int shmemId = space.sharedMemoryId();
try {
// Write some data to the space, but avoid blocking.
space.write(new byte[] {0, 1, 2, 3}, 0, 4, 0);
Collection<Integer> ids = IpcSharedMemoryUtils.sharedMemoryIds();
info("IDs: " + ids);
assertTrue(ids.contains(shmemId));
}
finally {
space.forceClose();
}
assertFalse(IpcSharedMemoryUtils.sharedMemoryIds().contains(shmemId));
}
}