Package oshi.hardware.platform.mac

Class MacGlobalMemory

java.lang.Object

oshi.hardware.common.AbstractGlobalMemory

oshi.hardware.platform.mac.MacGlobalMemory

All Implemented Interfaces:

GlobalMemory

@ThreadSafe
final class MacGlobalMemory
extends AbstractGlobalMemory

Memory obtained by host_statistics (vm_stat) and sysctl.

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.function.Supplier<java.lang.Long>	available
private static org.slf4j.Logger	LOG
private java.util.function.Supplier<java.lang.Long>	pageSize
private java.util.function.Supplier<java.lang.Long>	total
private java.util.function.Supplier<VirtualMemory>	vm

Constructor Summary

Constructors

Constructor	Description
MacGlobalMemory()

Method Summary

Modifier and Type	Method	Description
private VirtualMemory	createVirtualMemory()
long	getAvailable()	The amount of physical memory currently available, in bytes.
long	getPageSize()	The number of bytes in a memory page
java.util.List<PhysicalMemory>	getPhysicalMemory()	Physical memory, such as banks of memory.
long	getTotal()	The amount of actual physical memory, in bytes.
VirtualMemory	getVirtualMemory()	Virtual memory, such as a swap file.
private static long	queryPageSize()
private static long	queryPhysMem()
private long	queryVmStats()

Methods inherited from class oshi.hardware.common.AbstractGlobalMemory

toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

LOG

private static final org.slf4j.Logger LOG

available

private final java.util.function.Supplier<java.lang.Long> available

total

private final java.util.function.Supplier<java.lang.Long> total

pageSize

private final java.util.function.Supplier<java.lang.Long> pageSize

vm

private final java.util.function.Supplier<VirtualMemory> vm

Constructor Detail

MacGlobalMemory

MacGlobalMemory()

Method Detail

getAvailable

public long getAvailable()

Description copied from interface: GlobalMemory

The amount of physical memory currently available, in bytes.

Returns:

Available number of bytes.

getTotal

public long getTotal()

Description copied from interface: GlobalMemory

The amount of actual physical memory, in bytes.

Returns:

Total number of bytes.

getPageSize

public long getPageSize()

Description copied from interface: GlobalMemory

The number of bytes in a memory page

Returns:

Page size in bytes.

getVirtualMemory

public VirtualMemory getVirtualMemory()

Description copied from interface: GlobalMemory

Virtual memory, such as a swap file.

Returns:

A VirtualMemory object.

getPhysicalMemory

public java.util.List<PhysicalMemory> getPhysicalMemory()

Description copied from interface: GlobalMemory

Physical memory, such as banks of memory.

On Linux, requires elevated permissions. On FreeBSD and Solaris, requires installation of dmidecode.

Specified by:

getPhysicalMemory in interface GlobalMemory

Overrides:

getPhysicalMemory in class AbstractGlobalMemory

Returns:

A list of PhysicalMemory objects.

queryVmStats

private long queryVmStats()

queryPhysMem

private static long queryPhysMem()

queryPageSize

private static long queryPageSize()

createVirtualMemory

private VirtualMemory createVirtualMemory()