Hi, In windows form application, I am creating a thread for some work and in between if your clicks for some other work, then I need to suspend earlier thread and need to do new task(high priority) first and after its completion, resuming suspended one. I have a timer to check for thread states, so I can manage processing. How to do ...
I want to run background process in parallel with my spring-mvc web-application. I need a way to start in automatically on context loading. Background process is a class that implements Runnable. Is spring-mvc has some facilities for that? ...
hey. im trying to use 2 threads running simultaneously and both using FileMapping feature to map a file on memory via different handles. problem is the MapViewOfFile function sometimes allocates the mapping on both threads to the same offset of memory. i tried using mutex on those parts, but it seems after high usage i fail to write to t...
I am using TcpClient object to transfer the files. There is only one object. So while transferring the file, I used to lock this object and transfer the file so the other threads waits until the TCPClient is released. Is there a way I can make Threads work in parallel with a single object? ...
Are there any generalisations of object and data and thread interactions given design pattern names? Obviously what goes on a lot is synchronisation on an object, passing messages through a queue and also reference counts in memory management systems. But are there any more OO-oriented names for multithreading design patterns and syste...
Hi, On the server application, I need to assign to each connected client an unique ID, so I am doing it this way: private short GetFreeID() { lock (this.mUsedPlayerIDsSynchronization) { for (short I = 1; I < 500; I++) { if (ClientIDPool[I] == false) { ClientIDPool[I] = true...
How can I create a list where I can rearrange list items with dragging list rows to another row and so on (to change to order)? Just like on the HTC Hero in the clocks app where you can rearrange the order of clocks? Wouter ...
Hey, Currently, I am trying to do a small project with sockets in Python, a two-user chatting system. import socket import threading #Callback. Print doesn't work across threads def data_recieved(data): print data #Thread class to gather input class socket_read(threading.Thread): sock = object def __init__(self, sock): ...
Today I got here nice answer that will resolve my problem. Unfortunately, I forgot to ask how about locking. The issue was simple - in the server, each connected client will get an unique ID (reusable) from 1 to 500, which is maximum of clients. The answer was to create a qeue and use waiting elements for new connections and just retur...
In my application I am executing 10 asynchronous NSURLConnections within an NSOperationQueue as NSInvocationOperations. In order to prevent each operation from returning before the connection has had a chance to finish I call CFRunLoopRun() as seen here: - (void)connectInBackground:(NSURLRequest*)URLRequest { TTURLConnection* connecti...
I'm trying to debug a horrible exception that is occurring in a SwingWorker thread. If I could name my SwingWorker threads, then I could better interpret the stack traces I am receiving. It doesn't seem possible to name a SwingWorker thread (is it?). I'm looking for any best practices or 'tricks' to help me properly identify my worker t...
Basically I am looking for a graph library that would have fine-grained locking around graph operations, so that different threads touching different parts of the graph could alter it simultaneously, and competing modifications could be blocked. I googled around a bit and can't find anything. Maybe this is too specific to my needs, but...
Where can I use multithreading in a simple 2D XNA game? Any suggestions would be appreciated ...
My application uses SendKeys to navigate through and enter data into the input fields (I know that is not the bestway to do it, but I have to work with this limitation). Now, I want to make sure that the correct window is active when the SendKeys are at work. One way to do confirm this is to check for the current active window before e...
I've got a program that executes a method through a Thread.Start. The method has a return value that I'd like to get access to. Is there a way to do this? Here's a sampling... var someValue = ""; Thread t = new Thread(delegate() { someValue = someObj.methodCall(); }); t.Start(); while (t.isAlive) Thread.Sleep(1000); // Check the val...
Using this statement calls the selector immediately instead of 6 seconds from now. this.PerformSelector(myStartWaitForSoundSelector, null, 6.0f); Does anyone know how to get this to work with a delay? I am using thread.Sleep(6000) in the function that gets called, but the entire app locks up for six seconds. Thanks ...
I have a server program, which doesn't have a very clean/graceful shutdown (not supposed to terminate in general). When tracing memory leaks, I run it under valgrind, but finally have to kill the process by a signal (^C). Generally I try to terminate the process when the ambiance is quiet but still then some threads might have been busy ...
Hello friends, This question is about the fallouts of using SingleThreadExecutor (JDK 1.6). Related questions have been asked and answered in this forum before, but I believe the situation I am facing, is a bit different. Various components of the application (let's call the components C1, C2, C3 etc.) generate (outbound) messages, mos...
I understand if one were using a lot of widely scoped state, it's a bad idea but how about immutable computations and highly localized side effects? ...
Hi, currently I am using lock for sending\receiving the file from FTP through TCPClient class. But this supports only single file to send and receive. So what's the better way to use in this situation (lock, mutex, interlock, read\write lock, semaphore). ...