Class LinuxOperatingSystemNF

java.lang.Object

oshi.software.common.AbstractOperatingSystem

oshi.software.common.os.linux.LinuxOperatingSystem

oshi.software.common.os.linux.nativefree.LinuxOperatingSystemNF

All Implemented Interfaces:

OperatingSystem

@ThreadSafe
public class LinuxOperatingSystemNF
extends LinuxOperatingSystem

Native-free Linux operating system implementation. Extends LinuxOperatingSystem, providing implementations that require no native access.

Nested Class Summary

Nested classes/interfaces inherited from interface OperatingSystem

OperatingSystem.OSVersionInfo, OperatingSystem.ProcessFiltering, OperatingSystem.ProcessSorting

Field Summary

Fields inherited from class AbstractOperatingSystem

USE_WHO_COMMAND

Constructor Summary

Constructors

Constructor	Description
LinuxOperatingSystemNF()

Method Summary

Modifier and Type	Method	Description
protected OSProcess	createOSProcess(int pid)	Creates an OS process for the given PID.
FileSystem	getFileSystem()	Instantiates a FileSystem object.
long	getHz()	Gets Jiffies per second, useful for converting ticks to milliseconds and vice versa.
NetworkParams	getNetworkParams()	Instantiates a NetworkParams object.
long	getPageSize()	Gets Page Size, for converting memory stats from pages to bytes
OSProcess	getProcess(int pid)	Gets information on a currently running process
int	getProcessId()	Gets the current process ID (PID).
int	getThreadCount()	Get the number of threads currently running
int	getThreadId()	Makes a best effort to get the current thread ID (TID).
static long	hz()	Gets Jiffies per second.
static long	pageSize()	Gets Page Size in bytes.

Methods inherited from class LinuxOperatingSystem

getBootTime, getCgroupInfo, getCurrentThread, getInstalledApplications, getInternetProtocolStats, getParentPidsFromProcFiles, getProcessCount, getReleaseFilename, getServices, getSystemBootTime, getSystemUptime, queryAllProcesses, queryBitness, queryChildProcesses, queryDescendantProcesses, queryFamilyVersionInfo, queryManufacturer

Methods inherited from class AbstractOperatingSystem

getBitness, getChildProcesses, getChildrenOrDescendants, getChildrenOrDescendants, getDescendantProcesses, getDesktopWindows, getFamily, getManufacturer, getProcesses, getSessions, getVersionInfo, isElevated, toString

Methods inherited from class Object

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

Methods inherited from interface OperatingSystem

getCurrentProcess, getProcesses, getProcesses

Constructor Details

LinuxOperatingSystemNF

public LinuxOperatingSystemNF()

Method Details

hz

public static long hz()

Gets Jiffies per second.

Returns:

Jiffies per second.

pageSize

public static long pageSize()

Gets Page Size in bytes.

Returns:

Page Size in bytes.

getHz

public long getHz()

Description copied from class: LinuxOperatingSystem

Gets Jiffies per second, useful for converting ticks to milliseconds and vice versa.

Specified by:

getHz in class LinuxOperatingSystem

Returns:

Jiffies per second.

getPageSize

public long getPageSize()

Description copied from class: LinuxOperatingSystem

Gets Page Size, for converting memory stats from pages to bytes

Specified by:

getPageSize in class LinuxOperatingSystem

Returns:

Page Size

getFileSystem

public FileSystem getFileSystem()

Description copied from interface: OperatingSystem

Instantiates a FileSystem object.

Returns:

A FileSystem object.

getNetworkParams

public NetworkParams getNetworkParams()

Description copied from interface: OperatingSystem

Instantiates a NetworkParams object.

Returns:

A NetworkParams object.

getProcess

public OSProcess getProcess(int pid)

Description copied from interface: OperatingSystem

Gets information on a currently running process

Parameters:

pid - A process ID

Returns:

An OSProcess object for the specified process id if it is running; null otherwise

createOSProcess

protected OSProcess createOSProcess(int pid)

Description copied from class: LinuxOperatingSystem

Creates an OS process for the given PID.

Specified by:

createOSProcess in class LinuxOperatingSystem

Parameters:

pid - the process ID

Returns:

the OS process

getProcessId

public int getProcessId()

Description copied from interface: OperatingSystem

Gets the current process ID (PID).

Returns:

the Process ID of the current process

getThreadId

public int getThreadId()

Description copied from interface: OperatingSystem

Makes a best effort to get the current thread ID (TID). May not be useful in a multithreaded environment. The thread ID returned may have been short lived and no longer exist.

Thread IDs on macOS are not correlated with any other Operating System output.

Returns:

the Thread ID of the current thread if known, 0 otherwise.

getThreadCount

public int getThreadCount()

Description copied from interface: OperatingSystem

Get the number of threads currently running

Returns:

The number of threads running