multithreading - What does java.lang.Thread.interrupt() do? -


could explain java.lang.thread.interrupt() when invoked?

thread.interrupt() sets interrupted status/flag of target thread. code running in target thread may poll interrupted status , handle appropriately. methods block such object.wait() may consume interrupted status , throw appropriate exception (usually interruptedexception)

interruption in java not pre-emptive. put way both threads have cooperate in order process interrupt properly. if target thread not poll interrupted status interrupt ignored.

polling occurs via thread.interrupted() method returns current thread's interrupted status , clears interrupt flag. thread might such throw interruptedexception.

edit (from thilo comments): api methods have built in interrupt handling. of top of head includes.

  • object.wait()/thread.sleep()
  • most java.util.concurrent structures
  • java nio (but not java.io) , not use interruptedexception, instead using closedbyinterruptexception.

edit (from @thomas-pornin's answer exactly same question completeness)

thread interruption gentle way nudge thread. used give threads chance exit cleanly, opposed thread.stop() more shooting thread assault rifle.


Comments

Post a Comment

Popular posts from this blog

node.js - Using Node without global install -

i'm working on few node & electron (atom shell) projects , i'm curious how them work without user having install node globally. i've seen few applications including node directory in project contains node.exe binary. how go setting node project use binary? edit: thought should add, i've searched everywhere answer this, unrelated results.
Read more

How to access a php class file from PHPFox framework into javascript code written in simple HTML file? -

i've website developed using phpfox v3.0.7 . now i'm trying implement 'sse(server sent events)' 1 of php files. reference i'm giving below necessary code part of file. file titled process.class.php , present @ location /var/www/module/notification/include/service/process.class.php present on server having ip http://34.124.40.142/ . <?php /** * [phpfox_header] */ header('content-type: text/event-stream'); header('cache-control: no-cache'); defined('phpfox') or exit('no dice!'); /** * * * @copyright [phpfox_copyright] * @author raymond benc * @package phpfox_service * @version $id: service.class.php 67 2009-01-20 11:32:45z raymond_benc $ */ class notification_service_process extends phpfox_service { /** * class constructor */ public function __construct() { $this->_stable = phpfox::gett('notification'); } public function add($...
Read more

java - Null response to php query in android, even though php works properly -

Image
table i'm trying retrieve above data using 2 php files below. want pass email parameter , return bets user = email. work fine when tested advanced rest client, problem not php. however, when try through android 2 java classes below, null pointer exception (logcat below) , json object returned null. i'm not sure error is, think i'm not passing parameter php , that's why it's producing null response. logcat 05-31 15:10:50.227 26074-26074/com.example.albert.betterapp e/androidruntime﹕ fatal exception: main process: com.example.albert.betterapp, pid: 26074 java.lang.runtimeexception: unable start activity componentinfo{com.example.albert.betterapp/com.example.albert.betterapp.displayallbets}: java.lang.nullpointerexception @ android.app.activitythread.performlaunchactivity(activitythread.java:2292) @ android.app.activitythread.handlelaunchactivity(activitythread.java:2350) @ android.app.activitythread.acce...
Read more