MacHardwareAbstractionLayer.java
/**
* Oshi (https://github.com/dblock/oshi)
*
* Copyright (c) 2010 - 2015 The Oshi Project Team
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* dblock[at]dblock[dot]org
* alessandro[at]perucchi[dot]org
* widdis[at]gmail[dot]com
* https://github.com/dblock/oshi/graphs/contributors
*/
package oshi.software.os.mac;
import java.util.ArrayList;
import java.util.List;
import oshi.hardware.HardwareAbstractionLayer;
import oshi.hardware.Memory;
import oshi.hardware.PowerSource;
import oshi.hardware.Processor;
import oshi.software.os.OSFileStore;
import oshi.software.os.mac.local.CentralProcessor;
import oshi.software.os.mac.local.GlobalMemory;
import oshi.software.os.mac.local.MacFileSystem;
import oshi.software.os.mac.local.MacPowerSource;
import oshi.software.os.mac.local.SystemB;
import com.sun.jna.LastErrorException;
import com.sun.jna.Native;
import com.sun.jna.ptr.IntByReference;
/**
* @author alessandro[at]perucchi[dot]org
* @author widdis[at]gmail[dot]com
*/
public class MacHardwareAbstractionLayer implements HardwareAbstractionLayer {
private Processor[] _processors;
private Memory _memory;
private PowerSource[] _powerSources;
/*
* (non-Javadoc)
*
* @see oshi.hardware.HardwareAbstractionLayer#getProcessors()
*/
@Override
public Processor[] getProcessors() {
if (this._processors == null) {
int nbCPU = 1;
List<Processor> processors = new ArrayList<>();
int[] mib = { SystemB.CTL_HW, SystemB.HW_LOGICALCPU };
com.sun.jna.Memory pNbCPU = new com.sun.jna.Memory(SystemB.INT_SIZE);
if (0 != SystemB.INSTANCE.sysctl(mib, mib.length, pNbCPU,
new IntByReference(SystemB.INT_SIZE), null, 0))
throw new LastErrorException("Error code: "
+ Native.getLastError());
nbCPU = pNbCPU.getInt(0);
for (int i = 0; i < nbCPU; i++)
processors.add(new CentralProcessor(i));
this._processors = processors.toArray(new Processor[0]);
}
return this._processors;
}
/*
* (non-Javadoc)
*
* @see oshi.hardware.HardwareAbstractionLayer#getMemory()
*/
@Override
public Memory getMemory() {
if (this._memory == null) {
this._memory = new GlobalMemory();
}
return this._memory;
}
@Override
public PowerSource[] getPowerSources() {
if (this._powerSources == null) {
this._powerSources = MacPowerSource.getPowerSources();
}
return this._powerSources;
}
@Override
public OSFileStore[] getFileStores() {
return MacFileSystem.getFileStores();
}
}