blocked

So, if i have understood this correctly, a thread goes into waiting state when we call wait on an object and it goes into blocked state when it is waiting for a lock on an object(like when trying to get into a synchronized block or method). How does I/O-methods like read() put a Thread in a blocked state though? I understand WHY it has to be in a blocked state, waiting for data that it can read but i'm also interested in HOW. How does the JVM notify the thread that it can continue when data in the resource its trying to read, is available again? It doesn't change the state of the thread to

I have tried to work around this as well as debug but I'm at a loose end here :( is there any alternative to using this to check for a client connection? This code works fine in a console application so i am guessing the thread is being blocked, although it may be something else i can't see? public partial class Form1 : Form { Socket s; Declatation of socket. private void startButton_Click(object sender, EventArgs e) { checkTimer.Enabled = true; if (bw.IsBusy != true) { bw.RunWorkerAsync(); } } Background thread to start on button press. private void bw_DoWork(object sender, DoWorkEventArgs e)

Off late i am working on multithreading in java. Want to understand if a Thread is in BLOCKED state why it cant be interrupted? And why the thread can be interrupted only if it is in WAIT state? Basically, why do we need two Thread states one which can be interrupted and the other which cant be interrupted? This question might be very basic but, I am trying to understand things rather than just remembering them. One assumes that you mean cause the thread to stop its current operation and throw an InterruptedException ? A thread interrupt in Java is just a flag. You can call interrupt() just

I developed a analyzer with GUI (utilizing gWidgets package). Everything seems good when I run my code in R console or R studio, GUI can popup as exptected, interaction goes smoothly by choosing options. However, my manager has no idea about coding stuff, and what he wants is click-N-run. So I tried to use R CMD BATCH to create .bat file. R CMD BATCH G:\Temp\dav\AB_Analyzer\MAINcode.r outputFile When I ran the bat file, there is nothing popping up. May I know what I did wrong? Thanks for any help. If you run an R script in batch mode ( R CMD BATCH ) the "interactive flag" is set to false which

So, I'm building a website called "dagbok.nu", which is swedish for "diary now" :) Anyway, when creating the Facebook application, it claims that the site URL is invalid as well as the app domain. For site url, I used " http://dagbok.nu " and for site domain, I used "dagbok.nu". Please don't reply (as I've seen others do on similar issues) that I should type the site url with the scheme and the domain without - that's exactly what I'm doing. Right, so according to another question here, one could trouble shoot this functionality using FB's own URL scraper, so I did just that: http://developers

I just did an automatic update from ICS (4.0.4) to JB (4.1) on my android phone and it introduced multiple garbage collection calls when I run my app: WAIT_FOR_CONCURRENT_GC blocked 30ms I'm streaming video in my app and these blocked GC calls are almost doubling my latency, what do they mean? That message is emitted in a couple of cases: when user code explicitly calls gc(), and a gc is already in progress. when code tries to do an allocation but there isn't actually room in memory to accommodate the request, and a gc is already in progress. In either case, what's happening is that, in order