com.facebook.buck.util

Class ProcessHelper

java.lang.Object

com.facebook.buck.util.ProcessHelper

public class ProcessHelper
extends Object

A helper singleton that provides facilities such as extracting the native process id of a Process or gathering the process resource consumption.

Method Summary

Modifier and Type	Method and Description
static ProcessHelper	getInstance() Gets the singleton instance of this class.
Long	getPid() Gets the native process identifier for the current process.
Long	getPid(Object process) Gets the native process identifier for the given process instance.
ProcessResourceConsumption	getProcessResourceConsumption(long pid) Gets resource consumption of the process with the given pid.
ProcessResourceConsumption	getTotalResourceConsumption(long pid) Gets resource consumption of the process subtree rooted at the process with the given pid.
boolean	hasProcessFinished(Object process)

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static ProcessHelper getInstance()

Gets the singleton instance of this class.

getTotalResourceConsumption

@Nullable
public ProcessResourceConsumption getTotalResourceConsumption(long pid)

Gets resource consumption of the process subtree rooted at the process with the given pid.

getProcessResourceConsumption

@Nullable
public ProcessResourceConsumption getProcessResourceConsumption(long pid)

Gets resource consumption of the process with the given pid.

hasProcessFinished

public boolean hasProcessFinished(Object process)

Returns:

whether the process has finished executing or not.

getPid

@Nullable
public Long getPid()

Gets the native process identifier for the current process.

getPid

@Nullable
public Long getPid(Object process)

Gets the native process identifier for the given process instance.