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• How can I properly use environment variables encoded as Windows-1251 in Perl?

  - by Kartlee

  I have an environment variable set in Windows as TEST=abc£ which uses Windows-1252 code page. Now, when I run a Perl program test.pl this environment value comes properly. When I call another Perl code - test2.pl from test1.pl either by system(..) or Win32::Process, the environment comes garbled. Can someone provide information why this could be and way to resolve it? The version of perl I am using is 5.8. If my understanding is right, perl internally uses utf-8, so the initial process - test1.pl received it right from Windows-1252 → utf-8. When we call another process, should we convert back to Windows-1252 code page?

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• Powershell 2.0 Hang When Run From MsDeploy pre- post- ops using c/

  - by SonOfNun

  I am trying to invoke powershell during the preSync call in a MSDeploy command, but powershell does not exit the process after it has been called. The command (from command line): "tools/MSDeploy/msdeploy.exe" -verb:sync -preSync:runCommand="powershell.exe -NoLogo -NoProfile -NonInteractive -ExecutionPolicy Unrestricted -Command C:/MyInstallPath/deploy.ps1 Set-WebAppOffline Uninstall-Service ",waitInterval=60000 -usechecksum -source:dirPath="build/for-deployment" -dest:wmsvc=BLUEPRINT-X86,username=deployer,password=deployer,dirPath=C:/MyInstallPath I used a hack here (http://therightstuff.de/2010/02/06/How-We-Practice-Continuous-Integration-And-Deployment-With-MSDeploy.aspx) that gets the powershell process and kills it but that didn't work. I also tried taskkill and the sysinternals equivalent, but nothing will kill the process so that MSDeploy errors out. The command is executed, but then just sits there. Any ideas what might be causing powershell to hang like this? I have found a few other similar issues around the web but no answers.

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• Setting classpath java for use in Runtime.exec

  - by phil swenson

  I am trying to spawn a process using Runtime.exec. I want to use my current classpath : System.getProperty("java.class.path") Unfortunately, I am having all kinds of issues. When it works on my mac, it doesn't work on Windows. And doesn't work on my mac ever when there is a space in the classpath. The error I always get is ClassDefNotFound, so it's related to how I'm building and passing in the classpath. here is some sample code: String startClass = "com.test.MyClass" String javaHome = System.getProperty("java.home"); String javaCmd = javaHome + "/bin/java"; String classPath = "-Djava.class.path=" + System.getProperty("java.class.path"); String[] commands = new String[]{javaCmd, classPath, startClass}; String commandString = StringUtils.join(commands, " "); Process process = Runtime.getRuntime().exec(commandString); So, how should I setup the classpath? Thanks for any help

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• Best Practices for working with files via c#

  - by user177883

  Application I work on generates several hundreds of files in a 15 minutes period of times. and the back end of the application takes these files and process them (updates database with those values). One problem is database locks. What are the best practices on working with several thousands of files to avoid locking and efficiently processing these files? Would it be more efficient to create a single file and process it? or process single file at a time? What are so common best practices?

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• Sharing HDC between different processes

  - by Heinrich Ulbricht

  Hi, I am writing some kind of IPC functionality and need to pass certain resources from one process to another. This works well for Pipe handles etc. which can be duplicated via DuplicateHandle. Now I need to pass a HDC from one process to the other. Is this even possible? If yes: how? Sub-Question: I am assuming passing window handles (HWND) from one process to the other is safe. Is this assumption correct? Thanks for your help!

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• Can you hep me with my Perl homework?

  - by riya

  Could someone write simple Perl programs for the following scenarios: convert a list from {1,2,3,4,5,7,9,10,11,12,34} to {1-5,7,9-12,34} to sort a list of negative numbers to insert values to hash array there is a file with content: C1 c2 c3 c4 r1 r2 r3 r4 put it into an hash array where keys = {c1,c2,c3,c4} and values = {r1,r2,r3,r4} There are testcases running each testcase runs as a process and has a process ID. The logs are logged in a logfile process ID appended to each line. Prog to find out if the test case has passed or failed. The program shoud be running till the processes are running and display output.

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• Django ORM and multiprocessing

  - by Ankur Gupta

  Hi, I am using Django ORM in my python script in a decoupled fashion i.e. it's not running in context of a normal Django Project. I am also using the multi processing module. And different process in turn are making queries. The process ran successfully for an hr and exited with this message "IOError: [Errno 32] Broken pipe" Upon futhur diagnosis and debugging this error pops up when I call save() on the model instance. I am wondering Is Django ORM Process save ? Why would this error arise else ? Cheers Ankur

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• How do I open an already opened file with a .net StreamReader?

  - by Jon Cage

  I have some .csv files which I'm using as part of a test bench. I can open them and read them without any problems unless I've already got the file open in Excel in which case I get an IOException: System.IO.IOException : The process cannot access the file 'TestData.csv' because it is being used by another process. This is a snippet from the test bench: using (CsvReader csv = new CsvReader(new StreamReader(new FileStream(fullFilePath, FileMode.Open, FileAccess.Read)), false)) { // Process the file } Is this a limitation of StreamReader? I can open the file in other applications (Notepad++ for example) so it can't be an O/S problem. Maybe I need to use some other class? If anyone knows how I can get round this (aside from closing excel!) I'd be very grateful.

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• XMLReader in silverlight <test /> type tag problem

  - by Ummar

  Hi I am parsing XML in silverlight, in my XML I have one tag is like <test attribute1="123" /> <test1 attribute2="345">abc text</test1> I am using XMLReader to parse xml like using (XmlReader reader = XmlReader.Create(new StringReader(xmlString))) { // Parse the file and display each of the nodes. while (reader.Read()) { switch (reader.NodeType) { case XmlNodeType.Element: //process start tag here break; case XmlNodeType.Text: //process text here break; case XmlNodeType.XmlDeclaration: case XmlNodeType.ProcessingInstruction: break; case XmlNodeType.Comment: break; case XmlNodeType.EndElement: //process end tag here break; } } } but the problem is that for test tag no EndElement is received? which is making my whole program logic wrong. (for test1 tag all works fine). Please help me out.

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• What some good books on software testing/quality?

  - by mjh2007

  I'm looking for a good book on software quality. It would be helpful if the book covered: The software development process (requirements, design, coding, testing, maintenance) Testing roles (who performs each step in the process) Testing methods (white box and black box) Testing levels (unit testing, integration testing, etc) Testing process (Agile, waterfall, spiral) Testing tools (simulators, fixtures, and reporting software) Testing of embedded systems The goal here is to find an easy to read book that summarizes the best practices for ensuring software quality in an embedded system. It seems most texts cover the testing of application software where it is simpler to generate automated test cases or run a debugger. A book that provided solutions for improving quality in a system where the tests must be performed manually and therefore minimized would be ideal.

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• kill application remotely

  - by Burak

  Hello all, i have sth.bat file which launches my java program on compuiter A. i start this application from computer B by using "psstart \computerA "c:\sth.bat" ". but i when it comes to kill it in the same way, im limited with the process name. Because when sth.bat is run, i see a cmd.exe and java.exe in process list. I have to use the process name with "pskill \computerA processName". But i have more than one applications named cmd.exe and java.exe. How can i solve this problem?

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• Best recruiting SaaS available for tech startups?

  - by ajhit406

  I run a small startup and am always on the lookout for quality engineers. I've seen someone solicit SO with a similar question but there was only one response so I'm going to solicit the community again. (http://stackoverflow.com/questions/112766/free-application-to-keep-track-of-a-recruiting-process didn't suffice for me) Over a long period of time, I've found that my system of recruiting is incredibly inefficient. An applicant who might have been attractive the first week might become overshadowed by other applicants further down the road. Sometimes, applicants who I ignored become relevant to a new position that opens up as an web app becomes more robust and takes a turn in a direction I didn't consider. These are all difficult to track. Knowing that recruiting intelligent people should be an ongoing process, what are the best web applications for managing the process? Are there any apps with features catered specifically towards tech startups? (Free or paid, doesn't matter).

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• Problem with SqlServer 2005 when openning connections

  - by Jose Obregon

  I have a Winforms application and I use EntLib to connect to a SQL Server 2005 DB. The application is working ok, but somethings, and lately more often, we have started receiving this error from the db when openning the connection: A connection was successfully established with the server, but then an error occurred during the login process. (provider: Shared Memory Provider, error: 0 - No process is on the other end of the pipe.) (Microsoft SQL Server, Error: 233) The problem is intermittent. The user works nice for a couple of hours and then suddenly the exception is thrown. Sometimes it happens when we run a small process that loads a file and then inserts the data to the db. Please if anybody has any thought on this help me

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• Sending and receiving async over multiprocessing.Pipe() in Python

  - by dcolish

  I'm having some issues getting the Pipe.send to work in this code. What I would ultimately like to do is send and receive messages to and from the foreign process while its running in a fork. This is eventually going to be integrated into a pexpect loop for talking to interpreter processes. ` from multiprocessing import Process, Pipe def f(conn): cmd = '' if conn.poll(): cmd = conn.recv() i = 1 i += 1 conn.send([42 + i, cmd, 'hello']) if __name__ == '__main__': parent_conn, child_conn = Pipe() p = Process(target=f, args=(child_conn,)) p.start() from pdb import set_trace; set_trace() while parent_conn.poll(): print parent_conn.recv() # prints "[42, None, 'hello']" parent_conn.send('OHHAI') p.join() `

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• debugging error -- error attaching to w3wp.exe

  - by George2

  Hello everyone, I am using VSTS 2008 + .Net 3.5 + C#. And I developed a custom Forms authentication module for IIS 7.0 and I attach to w3wp.exe to debug this module. During the attach process (I just select Tools - Attach to Process, no further operation performed on the computer I am debugging -- I just wait for the attach to be completed), I met with the following error, any ideas what is wrong? The web server process that was being debugged has been terminated by Internet Information Services (IIS). This can be avoided by configuring Application Pool ping settings in IIS. See help for further details. thanks in advance, George

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• pure-specifier on function-definition

  - by bebul

  While compiling on GCC I get the error: pure-specifier on function-definition, but not when I compile the same code using VS2005. class Dummy { //error: pure-specifier on function-definition, VS2005 compiles virtual void Process() = 0 {}; }; But when the definition of this pure virtual function is not inline, it works: class Dummy { virtual void Process() = 0; }; void Dummy::Process() {} //compiles on both GCC and VS2005 What does the error means? Why cannot I do it inline? Is it legal to evade the compile issue as shown in the second code sample?

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• Problem with SqlServer 2005 when opening connections

  - by Jose Obregon

  I have a Winforms application and I use EntLib to connect to a SQL Server 2005 DB. The application is working ok, but sometimes, and lately more often, we have started receiving this error from the db when opening the connection: A connection was successfully established with the server, but then an error occurred during the login process. (provider: Shared Memory Provider, error: 0 - No process is on the other end of the pipe.) (Microsoft SQL Server, Error: 233) The problem is intermittent. The user works well for a couple of hours and then suddenly the exception is thrown. Sometimes it happens when we run a small process that loads a file and then inserts the data to the db.

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• What's the right way to kill child processes in perl before exiting?

  - by rarbox

  I'm running an IRC Bot (Bot::BasicBot) which has two child processes running File::Tail but when exiting, they don't terminate. So I'm killling them using Proc::ProcessTable like this before exiting: my $parent=$$; my $proc_table=Proc::ProcessTable->new(); for my $proc (@{$proc_table->table()}) { kill(15, $proc->pid) if ($proc->ppid == $parent); } It works but I get this warning: 14045: !!! Child process PID:14047 reaped: 14045: !!! Child process PID:14048 reaped: 14045: !!! Your program may not be using sig_child() to reap processes. 14045: !!! In extreme cases, your program can force a system reboot 14045: !!! if this resource leakage is not corrected. What else can I do to kill child processes? The forked process is created using the forkit method in Bot::BasicBot.

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• How to use IObservable/IObserver with ConcurrentQueue or ConcurrentStack

  - by James Black

  I realized that when I am trying to process items in a concurrent queue using multiple threads while multiple threads can be putting items into it, the ideal solution would be to use the Reactive Extensions with the Concurrent data structures. My original question is at: http://stackoverflow.com/questions/2997797/while-using-concurrentqueue-trying-to-dequeue-while-looping-through-in-parallel/ So I am curious if there is any way to have a LINQ (or PLINQ) query that will continuously be dequeueing as items are put into it. I am trying to get this to work in a way where I can have n number of producers pushing into the queue and a limited number of threads to process, so I don't overload the database. If I could use Rx framework then I expect that I could just start it, and if 100 items are placed in within 100ms, then the 20 threads that are part of the PLINQ query would just process through the queue. There are three technologies I am trying to work together: Rx Framework (Reactive LINQ) PLING System.Collections.Concurrent structures

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• On WindowsMobile, how can i tell what other processes are reserving shared memory space?

  - by glutz78

  On WindowMobile 6.1, I am using VirtualAlloc to reserve 2MB chunks, which will return me an address from the large shared memory area so allocations do not count against my per process virtual space. (doc here: http://msdn.microsoft.com/en-us/library/aa908768.aspx) However, on some devices i notice that I am not able to reserve memory after a certain point. VirtualAlloc will return NULL (getlasterror() says out of memory). The only explanation for this that I see is that another process has already reserved a bunch of memory and my process is therefore unable to. Any idea where I can find a tool to show me the shared mem region of a WM device? Thanks.

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• Cleaning up temp folder after long-running subprocess exits

  - by dbr

  I have a Python script (running inside another application) which generates a bunch of temporary images. I then use subprocess to launch an application to view these. When the image-viewing process exists, I want to remove the temporary images. I can't do this from Python, as the Python process may have exited before the subprocess completes. I.e I cannot do the following: p = subprocess.Popen(["imgviewer", "/example/image1.jpg", "/example/image1.jpg"]) p.communicate() os.unlink("/example/image1.jpg") os.unlink("/example/image2.jpg") ..as this blocks the main thread, nor could I check for the pid exiting in a thread etc The only solution I can think of means I have to use shell=True, which I would rather avoid: cmd = ['imgviewer'] cmd.append("/example/image2.jpg") for x in cleanup: cmd.extend(["&&", "rm", x]) cmdstr = " ".join(cmd) subprocess.Popen(cmdstr, shell = True) This works, but is hardly elegant, and will fail with filenames containing spaces etc.. Basically, I have a background subprocess, and want to remove the temp files when it exits, even if the Python process no longer exists.

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• Basics for implementing SSL on PHP Website

  - by KoolKabin

  Hi guys, I am here as a developer of a website. My website got different modules among which one function is to process credit card. In order to process credit card I need to implement SSL layer and process the pages. For rest of modules the SSL is optional. Now my points are: 1.) Is the location of file for http and https same? 2.) Can the session of http and https be shared? this is required as i need user login information and cart item information.

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• idomatic batch processing of text in emacs?

  - by Stephen

  In python, you might do something like fout = open('out','w') fin = open('in') for line in fin: fout.write(process(line)+"\n") fin.close() fout.close() (I think it would be similar in many other languages as well). In emacs lisp, would you do something like (find-file 'out') (setq fout (current-buffer) (find-file 'in') (setq fin (current-buffer) (while moreLines (setq begin (point)) (move-end-of-line 1) (setq line (buffer-substring-no-properties begin (point)) ;; maybe (print (process line) fout) ;; or (save-excursion (set-buffer fout) (insert (process line))) (setq moreLines (= 0 (forward-line 1)))) (kill-buffer fin) (kill-buffer fout) which I got inspiration (and code) from here. Or should I try something entirely different? And how to remove the "" from the print statement? Thanks!

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• Capture and display console output at the same time

  - by Patrick

  Hi, MSDN states that it is possible in .NET to capture the output of a process and display it in the console window at the same time. Normally when you set StartInfo.RedirectStandardOutput = true; the console window stays blank. As the MSDN site doesn't provide a sample for this I was wondering if anyone would have a sample or could point me to a sample? When a Process writes text to its standard stream, that text is normally displayed on the console. By redirecting the StandardOutput stream, you can manipulate or suppress the output of a process. For example, you can filter the text, format it differently, or write the output to both the console and a designated log file. MSDN This post is similar to http://stackoverflow.com/questions/786726/capture-standard-output-and-still-display-it-in-the-console-window by the way. But that post didn't end up with a working sample. Thanks a lot, Patrick

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• Converting raw bytes into audio sound

  - by Afro Genius

  In my application I inherit a javastreamingaudio class from the freeTTS package then bypass the write method which sends an array of bytes to the SourceDataLine for audio processing. Instead of writing to the data line, I write this and subsequent byte arrays into a buffer which I then bring into my class and try to process into sound. My application processes sound as arrays of floats so I convert to float and try to process but always get static sound back. I am sure this is the way to go but am missing something along the way. I know that sound is processed as frames and each frame is a group of bytes so in my application I have to process the bytes into frames somehow. Am I looking at this the right way? Thanx in advance for any help.

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