Package com.yahoo.yolean.system

Class CatchSignals

java.lang.Object

com.yahoo.yolean.system.CatchSignals

public class CatchSignals
extends Object

Constructor Summary

Constructors

Constructor	Description
CatchSignals()

Method Summary

Modifier and Type	Method	Description
static void	setup(AtomicBoolean signalCaught)	Sets up a signal handler for SIGTERM and SIGINT, where a given AtomicBoolean gets a true value when the signal is caught.

Methods inherited from class java.lang.Object

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

Constructor Details

CatchSignals

public CatchSignals()

Method Details

setup

public static void setup(AtomicBoolean signalCaught)

Sets up a signal handler for SIGTERM and SIGINT, where a given AtomicBoolean gets a true value when the signal is caught. Callers basically have two options for acting on the signal: They may choose to synchronize and wait() on this variable, and they will be notified when it changes state to true. To avoid problems with spurious wakeups, use a while loop and wait() again if the state is still false. As soon as the caller has been woken up and the state is true, the application should exit as soon as possible. They may also choose to poll the state of this variable. As soon as its state becomes true, the signal has been received, and the application should exit as soon as possible.

Parameters:

signalCaught - set to false initially, will be set to true when SIGTERM or SIGINT is caught.