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  • [C#] WebClient - Upload data, get stream

    - by Barguast
    I have a situation where I want to asynchronously write a series of bytes with WebClient (in much the same way as UploadDataAsync) and get a readable response stream (in the same way as OpenReadAsync). You seem to be able to do the two individually, but not both of them together. Is there a way? Thanks!

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  • "Gtk-WARNING **: cannot open display: " when using execve to launch a Gtk program on ubuntu

    - by michael
    Hi, I have the following c program which launches a Gtk Program on ubuntu: #include <unistd.h> int main( int argc, const char* argv[] ) { char *args[2] = { "testarg", 0 }; char *envp[1] = { 0 }; execve("/home/michael/MyGtkApp",args,envp); } I get "Gtk-WARNING **: cannot open display: " and my program is not launched. I have tried setting char *envp[1] = {"DISPLAY:0.0"}; and execute 'xhost +' , I dont' see the 'cannot open display' warning, but my program is still not launched. Does anyone know how to fix my problem? Thank you.

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  • Replacing build.xml with Build.java - using Java and the Ant libraries as a build system

    - by Dean Schulze
    I've grown disillusioned with Groovy based alternatives to Ant. AntBuilder doesn't work from within Eclipse, the Groovy plugin for Eclipse is disappointing, and Gradle just isn't ready yet. The Ant documentation has a section titled "Using Ant Tasks Outside of Ant" which gives a teaser for how to use the Ant libraries from Java code. There's another example here: http://www.mail-archive.com/[email protected]/msg16310.html In theory it seems simple enough to replace build.xml with Build.java. The Ant documentation hints at some undocumented dependencies that I'll have to discover (undocumented from the point of view of using Ant from within Java). Given the level of disappointment with Ant scripting, I wonder why this hasn't been done before. Perhaps it has and isn't a good build system. Has anyone tried writing build files in Java using the Ant libraries?

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  • Best way to migrate from IIS6 to IIS6

    - by Darko Romanov
    Hi, I need to move all my sites on a server with IIS 6 to another one, that has same OS (Windows Server 20003) and same IIS version. I'm trying to understand which is the best way to do it. Searching on Google I've found that there are at least 2 methods, one uses IIS Migration Tool, and another Web Deployment Tool. I don't know which method is best, it also seems that both methods can export one site at once, and I have about 100 sites hosted. What would you do?

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  • ASP.NET MVC - Pass array object as a route value within Html.ActionLink(...)

    - by Mike
    I have a method that returns an array (string[]) and I'm trying to pass this array of strings into an Action Link so that it will create a query string similar to: /Controller/Action?str=val1&str=val2&str=val3...etc But when I pass new { str = GetStringArray() } I get the following url: /Controller/Action?str=System.String%5B%5D So basically it's taking my string[] and running .ToString() on it to get the value. Any ideas? Thanks!

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  • Iteration through std containers in openmp

    - by Sasun Hambardzumyan
    Hi, people. I try to use openmp for multithreading the loop through std::set. When I write the following code - #pragma omp parallel for for (std::set<A>::const_iterator i = s.begin(); i != s.end(); ++i) { const A a = *i; operate(a); } I get an error - error: invalid type for iteration variable 'i' error: invalid controlling predicate error: invalid increment expression. So is there an another way to correct iteration in std containers using openmp? There is a workaround to use int i and iterate from 0 to s.size() and using iterator inside a loop body, but this is not looks good.

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  • TCP multicast and multithreading

    - by Fantastic Fourier
    I need to come up with clients that can multicast to other clients reliably. That implies I'll be using TCP to connect reliably between clients within a multicast group. Doesn't that come up to n^2 number of connections? That seems a little silly to me. Wouldn't/shouldn't there be a way to more easily multicast with reliability?

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  • Merge method in MergeSort Algorithm .

    - by Tony
    I've seen many mergeSort implementations .Here is the version in Data Structures and Algorithms in Java (2nd Edition) by Robert Lafore : private void recMergeSort(long[] workSpace, int lowerBound,int upperBound) { if(lowerBound == upperBound) // if range is 1, return; // no use sorting else { // find midpoint int mid = (lowerBound+upperBound) / 2; // sort low half recMergeSort(workSpace, lowerBound, mid); // sort high half recMergeSort(workSpace, mid+1, upperBound); // merge them merge(workSpace, lowerBound, mid+1, upperBound); } // end else } // end recMergeSort() private void merge(long[] workSpace, int lowPtr, int highPtr, int upperBound) { int j = 0; // workspace index int lowerBound = lowPtr; int mid = highPtr-1; int n = upperBound-lowerBound+1; // # of items while(lowPtr <= mid && highPtr <= upperBound) if( theArray[lowPtr] < theArray[highPtr] ) workSpace[j++] = theArray[lowPtr++]; else workSpace[j++] = theArray[highPtr++]; while(lowPtr <= mid) workSpace[j++] = theArray[lowPtr++]; while(highPtr <= upperBound) workSpace[j++] = theArray[highPtr++]; for(j=0; j<n; j++) theArray[lowerBound+j] = workSpace[j]; } // end merge() One interesting thing about merge method is that , almost all the implementations didn't pass the lowerBound parameter to merge method . lowerBound is calculated in the merge . This is strange , since lowerPtr = mid + 1 ; lowerBound = lowerPtr -1 ; that means lowerBound = mid ; Why the author didn't pass mid to merge like merge(workSpace, lowerBound,mid, mid+1, upperBound); ? I think there must be a reason , otherwise I can't understand why an algorithm older than half a center ,and have all coincident in the such little detail.

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  • Simplest way to create busy animation in WPF

    - by drasto
    I mentioned that there is no standard busy control in WPF. So what's the easiest way to display animated busy circle (not progress bar) such as your browser displays when loading a page ? Please if you suggest downloading control from internet make sure that this control is for free and with no licence restriction (such as I would be forced to GPL my application if I use it). Thank you in advance

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  • How do I configure CI hudson with PHPunit and how do I run phpunit using hudson?

    - by Vinesh
    Hi, I am getting following error mentioned below. Help is much needed for this... kindly go through the errors. Started by an SCM change Updating https://suppliesguys.unfuddle.com/svn/suppliesguys_frontend2/Frontend-Texity/src U sites\all\modules\print\print_pdf\print_pdf.pages.inc At revision 1134 [workspace] $ sh -xe C:\WINDOWS\TEMP\hudson6292587174545072503.sh The system cannot find the file specified FATAL: command execution failed java.io.IOException: Cannot run program "sh" (in directory "E:\Projects\Hudson.hudson\jobs\TSG\workspace"): CreateProcess error=2, The system cannot find the file specified at java.lang.ProcessBuilder.start(Unknown Source) at hudson.Proc$LocalProc.(Proc.java:149) at hudson.Proc$LocalProc.(Proc.java:121) at hudson.Launcher$LocalLauncher.launch(Launcher.java:636) at hudson.Launcher$ProcStarter.start(Launcher.java:271) at hudson.Launcher$ProcStarter.join(Launcher.java:278) at hudson.tasks.CommandInterpreter.perform(CommandInterpreter.java:83) at hudson.tasks.CommandInterpreter.perform(CommandInterpreter.java:58) at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:19) at hudson.model.AbstractBuild$AbstractRunner.perform(AbstractBuild.java:584) at hudson.model.Build$RunnerImpl.build(Build.java:174) at hudson.model.Build$RunnerImpl.doRun(Build.java:138) at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:416) at hudson.model.Run.run(Run.java:1244) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:122) Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified at java.lang.ProcessImpl.create(Native Method) at java.lang.ProcessImpl.(Unknown Source) at java.lang.ProcessImpl.start(Unknown Source) ... 17 more Publishing Javadoc Publishing Clover coverage report... No Clover report will be published due to a Build Failure [xUnit] Starting to record. [xUnit] [PHPUnit] - Use the embedded style sheet. [xUnit] [ERROR] - No test report file(s) were found with the pattern 'build/logs/phpunit.xml' relative to 'E:\Projects\Hudson.hudson\jobs\TSG\workspace' for the testing framework 'PHPUnit'. Did you enter a pattern relative to the correct directory? Did you generate the result report(s) for 'PHPUnit'? [xUnit] Stopping recording. Finished: FAILURE

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  • OBJC_CLASS_$_MTSCRA", referenced from

    - by user1078841
    I was trying to make a sample code run download by the link http://www.magtek.com/support/software/downloads/sw/99510108.zip This is a card reader api ,here is a sample code.When I run this code I got the error: ld: warning: ignoring file /Users/gaurav.garg/Downloads/99510108/SampleCode/Lib/libMTSCRA.a, missing required architecture i386 in file Undefined symbols for architecture i386: "_OBJC_CLASS_$_MTSCRA", referenced from: objc-class-ref in MagTekDemoAppDelegate.o ld: symbol(s) not found for architecture i386 clang: error: linker command failed with exit code 1 (use -v to see invocation) The class MTSCRA is only a header file,And the solution that I have cheked That we have to add the .m file in compiled source path of build build phase of target...but unfortunately I don't have the MTSCRA.m file.MTscra.h have the AudioToolBox and externalAccesory framework.

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  • C# process restart loop

    - by Andrej
    Hi, I'm trying to make a console app that would monitor some process and restart it if it exits. So, the console app is always on, it's only job is to restart some other process. I posted my code below.. it basically works but just for one process restart... I would appriciate any help!! Thanks in advance! { System.Diagnostics.Process[] p = System.Diagnostics.Process.GetProcessesByName(SOME_PROCESS); p[0].Exited += new EventHandler(Startup_Exited); while (!p[0].HasExited) { p[0].WaitForExit(); } //Application.Run(); } private static void Startup_Exited(object sender, EventArgs e) { System.Diagnostics.Process.Start(AGAIN_THAT_SAME_PROCESS); }

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  • Node.js REST framework?

    - by Geuis
    Just got node.js running on an ubuntu server instance. Got a couple of simple server apps running. Does anyone know of any REST frameworks that have been built or are in development?

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  • C#: Struct Constructor: "fields must be fully assigned before control is returned to the caller."

    - by Rosarch
    Here is a struct I am trying to write: public struct AttackTraits { public AttackTraits(double probability, int damage, float distance) { Probability = probability; Distance = distance; Damage = damage; } private double probability; public double Probability { get { return probability; } set { if (value > 1 || value < 0) { throw new ArgumentOutOfRangeException("Probability values must be in the range [0, 1]"); } probability = value; } } public int Damage { get; set; } public float Distance { get; set; } } This results in the following compilation errors: The 'this' object cannot be used before all of its fields are assigned to Field 'AttackTraits.probability' must be fully assigned before control is returned to the caller Backing field for automatically implemented property 'AttackTraits.Damage' must be fully assigned before control is returned to the caller. Consider calling the default constructor from a constructor initializer. Backing field for automatically implemented property 'AttackTraits.Distance' must be fully assigned before control is returned to the caller. Consider calling the default constructor from a constructor initializer. What am I doing wrong?

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  • Wrong figures numbering - Package caption Error: Continued 'figure' after 'table'

    - by Eduardo
    Hello I am having a problem with the numbering of figures using Latex, I am getting this error message: Package caption Error: Continued 'figure' after 'table' This is my code: \begin{table} \centering \subfloat[Tabla1\label{tab:Tabla1}]{ \small \begin{tabular}{ | c | c | c | c | c |} \hline \multicolumn{5}{|c|}{\textbf{Tabla 1}} \\ \hline ... ... \end{tabular} } \qquad \subfloat[Tabla2\label{tab:Tabla2}]{ \small \begin{tabular}{ | c | c | c | c | c |} \hline \multicolumn{5}{|c|}{\textbf{Tabla 2}} \\ \hline ... ... \end{tabular} } \caption{These are tables} \label{tab:Tables} \end{table} \begin{figure} \centering \subfloat[][Figure 1]{\label{fig:fig1}\includegraphics[width = 14cm]{fig1}} \qquad \subfloat[][Figure 2]{\label{fig:fig2}\includegraphics[width = 14cm]{fig2}} \end{figure} \begin{figure}[t] \ContinuedFloat \subfloat[][Figure 2]{\label{fig:fig3}\includegraphics[width = 14cm]{fig3}} \caption{Those are figures} \label{fig:Figures} \end{figure} \newpage What I want to do, it is to have this configuration: Table Table Figure 1 Figure 2 Figure 3 Since Figure 1 and Figure 2 are too big to fit vertically I want the Figure 3 to be alone in another page that's why I have the \ContinuedFloat. Externally looks fine but the problem is the numbering, I am getting for the Figures the number 5.2, that is the same number that a Figure I have before (The correct number should be 5.3). However if I try to reference the figures: \ref{fig:fig1}, \ref{fig:fig2} y \ref{fig:fig2} I get: 5.3a, 5.3b y 5.2c The two first right the last one wrong. I have been stuck with this for hours any ideas?. Thans a lot in advance

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  • Optimized Image Loading in a UIScrollView

    - by Michael Gaylord
    I have a UIScrollView that has a set of images loaded side-by-side inside it. You can see an example of my app here: http://www.42restaurants.com. My problem comes in with memory usage. I want to lazy load the images as they are about to appear on the screen and unload images that aren't on screen. As you can see in the code I work out at a minimum which image I need to load and then assign the loading portion to an NSOperation and place it on an NSOperationQueue. Everything works great apart from a jerky scrolling experience. I don't know if anyone has any ideas as to how I can make this even more optimized, so that the loading time of each image is minimized or so that the scrolling is less jerky. - (void)scrollViewDidScroll:(UIScrollView *)scrollView{ [self manageThumbs]; } - (void) manageThumbs{ int centerIndex = [self centerThumbIndex]; if(lastCenterIndex == centerIndex){ return; } if(centerIndex >= totalThumbs){ return; } NSRange unloadRange; NSRange loadRange; int totalChange = lastCenterIndex - centerIndex; if(totalChange > 0){ //scrolling backwards loadRange.length = fabsf(totalChange); loadRange.location = centerIndex - 5; unloadRange.length = fabsf(totalChange); unloadRange.location = centerIndex + 6; }else if(totalChange < 0){ //scrolling forwards unloadRange.length = fabsf(totalChange); unloadRange.location = centerIndex - 6; loadRange.length = fabsf(totalChange); loadRange.location = centerIndex + 5; } [self unloadImages:unloadRange]; [self loadImages:loadRange]; lastCenterIndex = centerIndex; return; } - (void) unloadImages:(NSRange)range{ UIScrollView *scrollView = (UIScrollView *)[[self.view subviews] objectAtIndex:0]; for(int i = 0; i < range.length && range.location + i < [scrollView.subviews count]; i++){ UIView *subview = [scrollView.subviews objectAtIndex:(range.location + i)]; if(subview != nil && [subview isKindOfClass:[ThumbnailView class]]){ ThumbnailView *thumbView = (ThumbnailView *)subview; if(thumbView.loaded){ UnloadImageOperation *unloadOperation = [[UnloadImageOperation alloc] initWithOperableImage:thumbView]; [queue addOperation:unloadOperation]; [unloadOperation release]; } } } } - (void) loadImages:(NSRange)range{ UIScrollView *scrollView = (UIScrollView *)[[self.view subviews] objectAtIndex:0]; for(int i = 0; i < range.length && range.location + i < [scrollView.subviews count]; i++){ UIView *subview = [scrollView.subviews objectAtIndex:(range.location + i)]; if(subview != nil && [subview isKindOfClass:[ThumbnailView class]]){ ThumbnailView *thumbView = (ThumbnailView *)subview; if(!thumbView.loaded){ LoadImageOperation *loadOperation = [[LoadImageOperation alloc] initWithOperableImage:thumbView]; [queue addOperation:loadOperation]; [loadOperation release]; } } } } EDIT: Thanks for the really great responses. Here is my NSOperation code and ThumbnailView code. I tried a couple of things over the weekend but I only managed to improve performance by suspending the operation queue during scrolling and resuming it when scrolling is finished. Here are my code snippets: //In the init method queue = [[NSOperationQueue alloc] init]; [queue setMaxConcurrentOperationCount:4]; //In the thumbnail view the loadImage and unloadImage methods - (void) loadImage{ if(!loaded){ NSString *filename = [NSString stringWithFormat:@"%03d-cover-front", recipe.identifier, recipe.identifier]; NSString *directory = [NSString stringWithFormat:@"RestaurantContent/%03d", recipe.identifier]; NSString *path = [[NSBundle mainBundle] pathForResource:filename ofType:@"png" inDirectory:directory]; UIImage *image = [UIImage imageWithContentsOfFile:path]; imageView = [[ImageView alloc] initWithImage:image andFrame:CGRectMake(0.0f, 0.0f, 176.0f, 262.0f)]; [self addSubview:imageView]; [self sendSubviewToBack:imageView]; [imageView release]; loaded = YES; } } - (void) unloadImage{ if(loaded){ [imageView removeFromSuperview]; imageView = nil; loaded = NO; } } Then my load and unload operations: - (id) initWithOperableImage:(id<OperableImage>) anOperableImage{ self = [super init]; if (self != nil) { self.image = anOperableImage; } return self; } //This is the main method in the load image operation - (void)main { [image loadImage]; } //This is the main method in the unload image operation - (void)main { [image unloadImage]; }

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  • Deserialization error using Runtime Serialization with the Binary Formatter

    - by Lily
    When I am deserializing a hierarchy I get the following error The input stream is not a valid binary format. The starting contents (in bytes) are The input stream is not a valid binary format. The starting contents (in bytes) are: 20-01-20-20-20-FF-FF-FF-FF-01-20-20-20-20-20-20-20 ..." Any help please? Extra info: public void Serialize(ISyntacticNode person) { Stream stream = File.Open(fileName, FileMode.OpenOrCreate); try { BinaryFormatter binary = new BinaryFormatter(); pList.Add(person); binary.Serialize(stream, pList); stream.Close(); } catch { stream.Close(); } } public List<ISyntacticNode> Deserialize() { Stream stream = File.Open(fileName, FileMode.OpenOrCreate); BinaryFormatter binary = new BinaryFormatter(); try { pList = (List<ISyntacticNode>)binary.Deserialize(stream); binary.Serialize(stream, pList); stream.Close(); } catch { pList = new List<ISyntacticNode>(); binary.Serialize(stream, pList); stream.Close(); } return pList; } I am Serializing a hierarchy which is of type Proxem.Antelope.Parsing.ISyntacticNode Now I have gotten this error System.Runtime.Serialization.SerializationException: Binary stream '116' does not contain a valid BinaryHeader. Possible causes are invalid stream or object version change between serialization and deserialization. i'm using a different instance. How may I avoid this error please

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  • Angle and Length of Wind Barb Flags

    - by Kristopher Johnson
    I am working on an application that displays surface winds. Wind speed and direction will be displayed using "wind barb" symbols, as described here: Plotted Winds My question: Are there any standards for the angles and lengths of the "flags" in relation to the the wind-barb "pole"? Eyeballing the diagrams I've seen, I think that an angle of 60 degrees and a flag length about a third as long as the pole length would look fine, but if there are any officially defined standards for these symbols, I'd like to follow them. Note: This app will not be used for navigation, so it is not very important that it look exactly like an official chart. I just don't want it to be ugly, or to look obviously wrong to a knowledgeable user.

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  • Suppressing line specific XCode compiler warnings

    - by MrHen
    Similar to Ben Gottlieb's question, I have a handful of deprecated calls that are bugging me. Is there a way to suppress warnings by line? For instance: if([[UIApplication sharedApplication] respondsToSelector:@selector(setStatusBarHidden:withAnimation:)]) { [[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:UIStatusBarAnimationSlide]; } else { [[UIApplication sharedApplication] setStatusBarHidden:YES animated:NO]; //causes deprecation warning } All I care about is that line. I don't want to turn off all deprecation warnings. I would also rather not do something like suppress specific warnings by file. There have been a few other circumstances where I wanted to flag a specific line as okay even though the compiler generates a warning. I essentially want to let my team know that the problem has been handled and stop getting bugged about the same line over and over.

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  • How to use Parcel in Android?

    - by Mike
    I'm trying to use Parcel to write and then read back a Parcelable. For some reason, when I read the object back from the file, it's coming back as null. public void testFoo() { final Foo orig = new Foo("blah blah"); // Wrote orig to a parcel and then byte array final Parcel p1 = Parcel.obtain(); p1.writeValue(orig); final byte[] bytes = p1.marshall(); // Check to make sure that the byte array seems to contain a Parcelable assertEquals(4, bytes[0]); // Parcel.VAL_PARCELABLE // Unmarshall a Foo from that byte array final Parcel p2 = Parcel.obtain(); p2.unmarshall(bytes, 0, bytes.length); final Foo result = (Foo) p2.readValue(Foo.class.getClassLoader()); assertNotNull(result); // FAIL assertEquals( orig.str, result.str ); } protected static class Foo implements Parcelable { protected static final Parcelable.Creator<Foo> CREATOR = new Parcelable.Creator<Foo>() { public Foo createFromParcel(Parcel source) { final Foo f = new Foo(); f.str = (String) source.readValue(Foo.class.getClassLoader()); return f; } public Foo[] newArray(int size) { throw new UnsupportedOperationException(); } }; public String str; public Foo() { } public Foo( String s ) { str = s; } public int describeContents() { return 0; } public void writeToParcel(Parcel dest, int ignored) { dest.writeValue(str); } } What am I missing? UPDATE: To simplify the test I've removed the reading and writing of files in my original example.

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  • How to debug a Flex 4 HTTPService request that works on my computer, but not on another?

    - by ben
    I'm building a Ruby on Rails backed Flex 4 app, using Heroku to host the Ruby on Rails part during development. It all works fine when I run the release build on my computer, but when I run the release build on a friends computer, the data from the database doesn't get loaded. Problem is, I can't work out how to debug this because it's the release build, and I've only got Flash Builder 4 on my computer, where it all works fine. How can I go about trying to solve this problem? Thanks for reading.

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  • Iphone Custom UITabBarItem without rounded edges

    - by Alex Milde
    hi i try to customize a uitabbar i extended uitabbar item and now have a customized image in it but i cant get rid of the rounded edges. code: @interface CustomTabBarItem : UITabBarItem { UIImage *customHighlightedImage; } @property (nonatomic, retain) UIImage *customHighlightedImage; @end @implementation CustomTabBarItem @synthesize customHighlightedImage; - (void) dealloc { [customHighlightedImage release]; customHighlightedImage=nil; [super dealloc]; } -(UIImage *) selectedImage { return self.customHighlightedImage; } @end maybe somoen knows how to get rid of the rounded rect around the image thanks in advance alex

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