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  • Sleeping a thread blocking stdin

    - by Sid
    Hey, I'm running a function which evaluates commands passed in using stdin and another function which runs a bunch of jobs. I need to make the latter function sleep at regular intervals but that seems to be blocking the stdin. Any advice on how to resolve this would be appreciated. The source code for the functions is def runJobs(comps, jobQueue, numRunning, limit, lock): while len(jobQueue) >= 0: print(len(jobQueue)); if len(jobQueue) > 0: comp, tasks = find_computer(comps, 0); #do something time.sleep(5); def manageStdin(): print "Global Stdin Begins Now" for line in fileinput.input(): try: print(eval(line)); except Exception, e: print e; --Thanks

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  • Creating Oracle stored procedure that returns data

    - by user3614327
    In Firebird you can create a stored procedure that returns data an invoke it like a table passing the arguments: create or alter procedure SEL_MAS_IVA ( PCANTIDAD double precision) returns ( CANTIDAD_CONIVA double precision) as begin CANTIDAD_CONIVA = pCANTIDAD*(1.16); suspend; end select * from SEL_MAS_IVA(100) will return a single row single column (named CANTIDAD_CONIVA) relation with the value 116 This is a very simple example. The stored procedure can of course have any number of input and output parameters and do whatever it needs to return data (including multiple rows), which is accomplished by the "suspend" statement (which as it name implies, suspends the SP execution, returns data to the caller, and resumes with the next statement) How can I create such kind of stored procedures in Oracle?

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  • In Perl, can I limit the length of a line as I read it in from a file (like fgets)

    - by SB
    I'm trying to write a piece of code that reads a file line by line and stores each line, up to a certain amount of input data. I want to guard against the end-user being evil and putting something like a gig of data on one line in addition to guarding against sucking in an abnormally large file. Doing $str = <FILE> will still read in a whole line, and that could be very long and blow up my memory. fgets lets me do this by letting me specify a number of bytes to read during each call and essentially letting me split one long line into my max length. Is there a similar way to do this in perl? I saw something about sv_gets but am not sure how to use it (though I only did a cursory Google search). Thanks.

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  • Username correct, password incorrect?

    - by jonnnnnnnnnie
    In a login system, how can you tell if the user has entered the password incorrectly? Do you perform two SQL queries, one to find the username, and then one to find the username and matching (salted+hashed etc) password? I'm asking this because If the user entered the password incorrectly, I want to update the failed_login_attempts column I have. If you perform two queries wouldn't that increase overhead? If you did a query like this, how would you tell if the password entered was correct or not, or whether the username doesn't exist: SELECT * FROM author WHERE username = '$username' AND password = '$password' LIMIT 1 ( ^ NB: I'm keeping it simple, will use hash and salt, and will sanitize input in real one.) Something like this: $user = perform_Query() // get username and password? if ($user['username'] == $username && $user['password'] == $password) { return $user; } elseif($user['username'] == $username && $user['password'] !== $password) { // here the password doesn't match // update failed_login_attemps += 1 }

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  • how to write to an xml file using flex

    - by Gaurav
    Hi all, I have an application which takes live data from internet, I want to develop another application which reads data from the internet and writes it to an XML file (i.e. I want to save the state in an XML file). THE ONLY THING I NEED IS HOW TO WRITE THIS DATA IN AN XML FILE. FOR EXAMPLE say I have a combo box which takes top 10 fifa world cup watching sites, now I want to write this information (i.e. whatever the data this combo box takes as input into an xml file). I want the answer in flex only. And I don't want answer in AIR. Thankyou in advance.

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  • ASP.NET MVC 2 Form Not Passing Values

    - by Wayne
    Hi, I have a strange problem happening today. I am running the latest version of the MVC V2 framework and have been having no trouble at all - I came in this morning and for some reason values aren't being passed in to actions. To clarify lets say I have something like this: <% using (Html.BeginForm("Register", "Registration", FormMethod.Post)) { %> .... <input type="submit" name="register" id="register" value="Register" /> <% } %> And in my controller I have the following: [HttpPost] public ActionResult Register(RegistrationModel model, string register) { // At this point the register string is null } This has been working fine for a while now and I have not changed anything that I can think of that would cause this to happen. Does that make sense and as anyone any idea what is going on or what I have messed up? Thanks.

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  • Can I get.seed() somehow?

    - by a different ben
    In reference to the statement set.seed(), can I get the seed instead after running some code if I didn't set it explicitly? I've been re-running some code containing a function that randomises some sample of the input data (the function is part of the kohonen package). After playing with it for some time to see the variety of output (it was an 'unstable' problem), I noticed one result that was pretty interesting. I of course had not used set.seed(), but wondered if I could get the seed after running the code to reproduce the result? In ?set.seed I see .Random.seed saves the seed set for the uniform random-number generator But I don't know how that helps.

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  • how does selenium webdriver upload files to the browser?

    - by justspamjustin
    I am a javascript/java developer and I have been trying to figure out how the selenium webdriver automation framework uploads files from the file system. It is impossible to set a file input via javascript because it is a security violation. Yet somehow webdriver is able to do this with the following command: driver.setFileDetector(new LocalFileDetector()); WebElement upload = driver.findElement(By.id("myfile")); upload.sendKeys("/Users/sso/the/local/path/to/darkbulb.jpg"); driver.findElement(By.id("submit")).click(); So they are setting the value by sending keys to it? I don't get it. I have looked through the source code found here: http://code.google.com/p/selenium/source/checkout I am still not able to find where they do this. Edit: My question is not how to do this with selenium, but how did the selenium developers make this possible? How did they get around the security restrictions in javascript? How are they uploading the file?

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  • what difference between NULL, blank and empty in php?

    - by I Like PHP
    i have one form which have some input box and some select box. i want to apply that nothing can be empty or blank before further activity, so i use below condition foreach($_POST as $k=>$v) { if($v=='' || $v==NULL || empty($v)) { $_SESSION['errMsg']=' Please fill all the fields properly'; header("location:somepage.php"); exit; } } now my question is: above if is useful or not? if not then which condition is enough to prevent blank entry $v=='' or $v==NULL or empty($v) or i have to use all of these conditions? Thanks in advance

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  • Keeping track of threads when creating them recursively

    - by 66replica
    I'm currently working on some code for my Programming Languages course. I can't post the code but I'm permitted to talk about some high level concepts that I'm struggling with and receive input on them. Basically the code is a recursive DFS on a undirected graph that I'm supposed to convert to a concurrent program. My professor already specified that I should create my threads in the recursive DFS method and then join them in another method. Basically, I'm having trouble thinking of how I should keep track of the threads I'm creating so I can join all of them in the other method. I'm thinking an array of Threads but I'm unsure how to add each new thread to the array or even if that's the right direction.

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  • How to prevent negative number in Mysql

    - by Jerry
    Hello guys.. I have data which is starting from 0 in my database. My php will add 1 or -1 to the data depending on the user's input. My problem is that if data is 0 and a user try to subtract 1. The data become 4294967295 which is the maximum value of INT data type. Are there anyways to make the data stays in 0 even when the user asks for -1? Thanks for the reply.. my sql command is like below update board set score=score-1 where team='TeamA' //this would generate 4294967295 if the score is 0.....

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  • ASP.NET MVC Model Binders, html id

    - by Stacey
    Using the Model Binders in ASP.NET MVC 2.0, you can do something like this... [DisplayName("User Name")] public string Name { get; set; } <%: Html.TextBoxFor( m => m.Name ) :%> and then in your HTML, you get a result like this.. <label for="UserName">User Name</label> <input type="text" id="UserName" name="UserName" /> That works fine, but I want to have better control over the HTML ID. Is there any way to do this through the model binding method?

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  • CSV file download ignored in ie8/9

    - by JBB
    I have some code in a button click event which gets a csv string from a hidden input and writes it to the response as a CSV file. This work fine in Chrome, Firefox, ie7, ie9 in quirks mode. However it does not work in ie8 or ie9 default. Looking at this in fiddler the csv is being written to the response but the another get request is being made immediately after and the page reloads. No file saving dialog appears. protected void btnCsvHidden_Click(object sender, EventArgs e) { var csv = csvString.Value; var filename = "Reporting"; Response.Clear(); Response.ClearHeaders(); Response.AddHeader("Cache-Control", "no-store, no-cache"); Response.AddHeader("content-disposition", "attachment; filename=\"" + filename + ".csv\""); Response.ContentType = "text/csv"; Response.Write(csv); Response.End(); }

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  • Is there a way to determine the current Outlook activity level?

    - by dlittau
    I am working on an Outlook 2007 Add-in in C# (VS2008) and we want to send some background email items only when Outlook is not busy doing something else. Is there a .net way to see if Outlook is busy doing other things (perhaps due to other add-ins or the like taking up CPU cycles)? Alternately, is there a way to send emails such that they never appear in the Outbox? We need a method that would not require any additional software be installed. Thanks for any input.

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  • JQuery: Selecting Text in an Element (akin to highlighting with your mouse)

    - by Jason
    I would like to have users click a link that then selects the html text in another element (NOT an input). By "select" I mean the same way you would select text by dragging your mouse over it. This has been a bear to research because everyone talks about "select" or "highlight" in other terms. Is this possible? My code so far is thus: html: <a href="javascript:" onclick="SelectText('xhtml-code')">Select Code</a> <code id="xhtml-code">Some Code here </code> js (jquery): function SelectText(element) { $("#" + element).select(); } but it doesn't work. Am I missing something blatantly obvious? Thanks

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  • How to store and retrieve pictures using PHP?

    - by user1276898
    I am building a webpage using PHP to search within my database. I am able to do a query and get the data to show on my page. I also have a picture that is related to each record. Let's say something like a picture ID for each employee. I am wondering what is the best way to store and retrieve pictures in order to get it show using PHP. Is there a way to store all the pictures in the subfolder like " image" and retrieve the pictures using PHP? I tried to search around on the internet, but I get confused. Also, when I type something in the search box and click the button, is there a way to keep the input in the search box without erasing it? Thank you very much.

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  • how to use jquerydate picker with partial views in asp.net mvc?

    - by Renu123
    hello i am working on asp.net mvc. at staring i used the jquery which works fine but now i am converting my pages in to partial pages at this point am using ajax function to convert it in to partial view but every thing is working fine except date picker plz tell me the solution. the script that i have used: $(document).ready(function() { $("#txtTransationDate").datepicker(); }); </script> <input id="txtTransationDate" name="txtTransationDate" type="text" /> thank you......

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  • how to don't store a repeated field of a Symfony form?

    - by user454760
    Hello everybody, I am working with Symfony 1.4 and Doctrine. I have a model A with a email field. The form of A, display an input in which the user should insert the email correctly. But as everybody know sometiemes they don't do it. To fix this i have insert an extra field in the model (and in the form), called *repeat_email* to prevent the misspellings. Then, in the validation process, after validates all the fields, i use a global validator to compare the data of the two fields. This works, but i don't want to have the email stored two times in the database (i don't want the *repeat_email*). Is there any mechanism to use it in the validation process, but not to store it in the database? Thanks,

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  • Can I expand macro JUST ONE TIME in specific target?

    - by naive231
    A = "demo" %.o:%.cpp $(CC) -c $^ $(A) -o $@ default:$(all_objs) game:A = $(shell read -p 'Enter game version: ' gv && echo $$gv) game:$(all_objs) Just a snippet makefile above. If I make game, main problem is each compilation of sources will expand $(A) and it will request user to input game version over and over. $(A) has default content "demo" only if user doesn't make game target. So, is there any way to set $(A) to be expanded && ?

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  • MVC 3 Razor PopUp Window

    - by Vipul
    I need to open a new pop up window on click of a button in a view. The new window should be redirect to a specific actionmethod in a specific controller. I also need to provide attributes for size of the new pop up window. I have been trying the following code: <input type="button" name = "ClickMe" Value="ClickMe" onclick= "javascript:window.open('/Home/Create/','Customer Search',height='window.screen.height - 100', width='200',left='window.screen.width - 250' ,top='10',status='no',toobar='no',resizable='yes',scrollbars='yes')"/> On click of button, nothing happens. I get following Javascript error: Line: 19 Char: 1 Error: Invalid argument. Code: 0 When I check the ViewSource of the HTML rendered, I find the line to be the one which is rendering the button. I am using Windows Vista with IE 7. I am working on MVC 3 with Razor Engine in VS 2010

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  • How do I open a terminal window with C++ in Ubuntu?

    - by Epic Jakelor
    I recently decided to start teaching myself C++ and thought a simple encryption project would be a good place to start, since it covers most of the basics (cout, cin, opening files, etc). Is there a way to have the code open a terminal window similar to the one opened when I compile and run from sublime text? I have tried this so far, but it hasn't changed anything. string cmd = "gnome-terminal-x sh-c 'ls-l; exec bash'"; system(cmd.c_str()); Essentially, I would like to be able to run the program by clicking the .exe, and have the terminal where all of the input and output goes pop up.

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  • WorkFlow and WCF dynamically launching WorkFlows

    - by Raj73
    I have a WF which will be hosted on WCF . The service Contract will contain a single operation containing two parameters. Parameter1 will be a string and will contain the name of the workflow to invoke and parameter two will contain the input for the invoked Work Flow. All operations will take the same parameter. All the operations will return the same return value. I have created the service implementation and I would like to depending on the value of parameter1 start executing the appropriate workflow and return the value (There can be number of workflow classes say Operation1, Operation2...which will be the passed in as the value in Parameter1). How can I instantiate different workflow classes and pass parameters and get the return values from them which I should then pass back to the calling Client. (Also Should I be using ReceiveActivities in all of my Launchable WorkFlow Classes ? ) Any code samples or pointers would help

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  • how to execute a .exe program by php script

    - by user347262
    hello I want to execute a .exe file on my Apache server using a php script. the procedure is as follow: 1- user comes, fills a html form 2- it goses to a php script 3- php script executes the name.exe file 4- php prints the output of the name.exe file on the page. I execute the name.exe normally from windows like this: run--> cmd--> D:\name [command] the name.exe needs to communicate with other files like libraries in the same directory. the complete comand in cmd at windows is like this: D:\name library.dll [input from user] then program executes and prints some results in cmd window. I actually want to run this program on my server form my clients. I dont know how, but I now there is a way to do this. another related questoin is that, is there any shell that i can install on Linux server and execute name.exe in it? thanks in advanced, John.

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  • Through Java, make a call to Javascript functions on networked device?

    - by stjowa
    I am doing device monitoring on a networked system. I need to know how to make Javascript calls on that device via its IP address to get certain status information (this device's status is only available through Javascript APIs, not SNMP, etc). I am working in Java. ADDED: The specific device is an Amino set-top-box. It has what it calls JMACX: JavaScript Media Access Control Extensions API specification. It allows you within an HTML document to use that API to get MUCH information about the device (cpu usage, channel info, remote-control options, etc.). I need to get this information within a Java program for specific monitoring purposes. Perhaps possible with HTTP requests? Any input would be greatly appreciated. Thanks, Steve

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  • Unable to send Url in a Form field

    - by araja
    I am facing a problem while submitting a simple HTML form. Here is the form: <form name="form1" method="post" action="dest.php"> <input type="hidden" name="my_url" value="http://www.livrotek.com/book_image/thumb/12726851341.jpg" /> </form> When I submit this form, I get an apache error: You don't have permission to access dest.php on this server. If I change the value of "my_url" field to any value other than a URL, then it works fine.

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