Class NetBsdOperatingSystem

java.lang.Object

oshi.software.common.AbstractOperatingSystem

oshi.software.common.os.unix.bsd.BsdOperatingSystem

oshi.software.common.os.unix.netbsd.NetBsdOperatingSystem

All Implemented Interfaces:

OperatingSystem

@ThreadSafe
public class NetBsdOperatingSystem
extends BsdOperatingSystem

NetBsd is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution (BSD), which was based on Research Unix.

The cross-BSD-common pieces live in BsdOperatingSystem; NetBSD has no native-access split, so this single class also provides the ps process enumeration, the text-parsed boot time, the current-thread factory, and the sysctl version / file-system / network queries.

Nested Class Summary

Nested classes/interfaces inherited from interface OperatingSystem

OperatingSystem.OSVersionInfo, OperatingSystem.ProcessFiltering, OperatingSystem.ProcessSorting

Modifier and Type	Interface	Description
static class	OperatingSystem.OSVersionInfo	A class representing the Operating System version details.
static final class	OperatingSystem.ProcessFiltering	Constants which may be used to filter Process lists in OperatingSystem.getProcesses(Predicate, Comparator, int), OperatingSystem.getChildProcesses(int, Predicate, Comparator, int), and OperatingSystem.getDescendantProcesses(int, Predicate, Comparator, int).
static final class	OperatingSystem.ProcessSorting	Constants which may be used to sort Process lists in OperatingSystem.getProcesses(Predicate, Comparator, int), OperatingSystem.getChildProcesses(int, Predicate, Comparator, int), and OperatingSystem.getDescendantProcesses(int, Predicate, Comparator, int).

Field Summary

Fields inherited from class AbstractOperatingSystem

USE_WHO_COMMAND

Modifier and Type	Field	Description
protected static final boolean	USE_WHO_COMMAND	Whether to use the 'who' command for session queries.

Constructor Summary

Constructors

Constructor	Description
NetBsdOperatingSystem()

Method Summary

Modifier and Type	Method	Description
OSThread	getCurrentThread()	Makes a best effort to get the current thread.
FileSystem	getFileSystem()	Instantiates a FileSystem object.
InternetProtocolStats	getInternetProtocolStats()	Instantiates a InternetProtocolStats object.
NetworkParams	getNetworkParams()	Instantiates a NetworkParams object.
int	getProcessId()	Gets the current process ID (PID).
protected List<OSProcess>	getProcessListFromPS(int pid)	Enumerates processes (or a single process when pid >= 0) via the platform's ps command.
int	getThreadId()	Makes a best effort to get the current thread ID (TID).
protected long	queryBootTime()	Queries the system boot time in seconds since the epoch.
Pair<String, OperatingSystem.OSVersionInfo>	queryFamilyVersionInfo()	Queries the OS family and version info.

Methods inherited from class BsdOperatingSystem

getProcess, getProcessCount, getServices, getSystemBootTime, getSystemUptime, getThreadCount, queryAllProcesses, queryBitness, queryChildProcesses, queryDescendantProcesses, queryManufacturer

Modifier and Type	Method	Description
OSProcess	getProcess(int pid)	Gets information on a currently running process
int	getProcessCount()	Get the number of processes currently running
List<OSService>	getServices()	Gets the all services on the system.
long	getSystemBootTime()	Get Unix time of boot.
long	getSystemUptime()	Get the System up time (time since boot).
int	getThreadCount()	Get the number of threads currently running
List<OSProcess>	queryAllProcesses()	Queries all processes on the system.
protected int	queryBitness(int jvmBitness)	Backup OS-specific query to determine bitness if previous checks fail
List<OSProcess>	queryChildProcesses(int parentPid)	Queries the children of a process.
List<OSProcess>	queryDescendantProcesses(int parentPid)	Queries the descendants of a process.
String	queryManufacturer()	Queries the OS manufacturer.

Methods inherited from class AbstractOperatingSystem

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

Modifier and Type	Method	Description
int	getBitness()	Gets the bitness (32 or 64) of the operating system.
List<OSProcess>	getChildProcesses(int parentPid, Predicate<OSProcess> filter, Comparator<OSProcess> sort, int limit)	Gets currently running child processes of provided parent PID, optionally filtering, sorting, and limited to the top "N".
protected static Set<Integer>	getChildrenOrDescendants(Collection<OSProcess> allProcs, int parentPid, boolean allDescendants)	Utility method for subclasses to take a full process list as input and return the children or descendants of a particular process.
protected static Set<Integer>	getChildrenOrDescendants(Map<Integer,Integer> parentPidMap, int parentPid, boolean allDescendants)	Utility method for subclasses to take a map of pid to parent as input and return the children or descendants of a particular process.
List<OSProcess>	getDescendantProcesses(int parentPid, Predicate<OSProcess> filter, Comparator<OSProcess> sort, int limit)	Gets currently running processes of provided parent PID's descendants, including their children, the children's children, etc., optionally filtering, sorting, and limited to the top "N".
List<OSDesktopWindow>	getDesktopWindows(boolean visibleOnly)	Gets windows on the operating system's GUI desktop.
String	getFamily()	Get the Operating System family.
String	getManufacturer()	Get the Operating System manufacturer.
List<OSProcess>	getProcesses(Predicate<OSProcess> filter, Comparator<OSProcess> sort, int limit)	Gets currently running processes, optionally filtering, sorting, and limited to the top "N".
List<OSSession>	getSessions()	Gets currently logged in users.
OperatingSystem.OSVersionInfo	getVersionInfo()	Get Operating System version information.
boolean	isElevated()	Determine whether the current process has elevated permissions such as sudo / Administrator
String	toString()

Methods inherited from class Object

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

Methods inherited from interface OperatingSystem

getCgroupInfo, getCurrentProcess, getInstalledApplications, getProcesses, getProcesses

Modifier and Type	Method	Description
default CgroupInfo	getCgroupInfo()	Retrieves cgroup information for the current process.
default OSProcess	getCurrentProcess()	Gets the current process.
default List<ApplicationInfo>	getInstalledApplications()	Retrieves a list of installed applications on the system.
default List<OSProcess>	getProcesses()	Gets currently running processes.
default List<OSProcess>	getProcesses(Collection<Integer> pids)	Gets information on a Collection of currently running processes.

Constructor Details

NetBsdOperatingSystem

public NetBsdOperatingSystem()

Method Details

queryFamilyVersionInfo

public Pair<String, OperatingSystem.OSVersionInfo> queryFamilyVersionInfo()

Description copied from class: AbstractOperatingSystem

Queries the OS family and version info.

Specified by:

queryFamilyVersionInfo in class AbstractOperatingSystem

Returns:

a pair of family string and OS version info

getFileSystem

public FileSystem getFileSystem()

Description copied from interface: OperatingSystem

Instantiates a FileSystem object.

Returns:

A FileSystem object.

getInternetProtocolStats

public InternetProtocolStats getInternetProtocolStats()

Description copied from interface: OperatingSystem

Instantiates a InternetProtocolStats object.

Returns:

a InternetProtocolStats object.

getNetworkParams

public NetworkParams getNetworkParams()

Description copied from interface: OperatingSystem

Instantiates a NetworkParams object.

Returns:

A NetworkParams object.

getProcessListFromPS

protected List<OSProcess> getProcessListFromPS(int pid)

Description copied from class: BsdOperatingSystem

Enumerates processes (or a single process when pid >= 0) via the platform's ps command.

Specified by:

getProcessListFromPS in class BsdOperatingSystem

Parameters:

pid - the process ID, or -1 for all processes

Returns:

the process list

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.

getCurrentThread

public OSThread getCurrentThread()

Description copied from interface: OperatingSystem

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

On macOS, returns the oldest thread in the calling process.

Returns:

the current thread if known; an invalid thread otherwise.

queryBootTime

protected long queryBootTime()

Description copied from class: BsdOperatingSystem

Queries the system boot time in seconds since the epoch.

Specified by:

queryBootTime in class BsdOperatingSystem

Returns:

the boot time in seconds