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  • Getting started on a stream interface driver

    - by Ranhiru
    I want to build a stream interface driver for testing purposes but I am completely lost. I don't know which IDE to use VS2008 or Platform Builder. Platform Builder is whopping 20GB to download :( Can anyone guide me on how i create the .dll file and include XXX_Open, XXX_Close, XXX_Write, XXX_Read in the dll file? Should i write the .dll file in C++ or can i write it in C#? Please guide me through the basics :) Thanx a lot :)

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  • Using terminal to record/save a data stream

    - by jonhurlock
    I want to be able to save a data stream which i am returning using the curl command. I have tried using the cat command, and piping it the curl command, however i'm doing it wrong. The code im currently using is: cat > file.txt | curl http://datastream.com/data Any help would be appreciated.

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  • How to cast a pointer of memory block to std stream

    - by Shahrooz Kia
    I have programed an application on windows XP and in Visual Studio with c++ language. In that app I used LoadResource() API to load a resource for giving a file in the resource memory. It returned a pointer of memory block and I wanna cast the pointer to the std stream to use for compatibility. Could anyone help me?

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  • find the top K most frequent numbers in a data stream

    - by Jin
    This is more of a data structure question rather than a coding question. If I am fetching a data stream, i.e, I keep receiving float numbers once at a time, how should I keep track of the top K frequent numbers? Here my memory is 4G and I prefer to have less communication with hard drive unless necessary. I think heap is good for updating the max and min. How should I design the data structure? Thanks

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  • [JAVA] Activity Stream- Producing X amount of objects in a panel on app load

    - by Matthew De'Loughry
    Hi guys, Just wondering if you could help wanting to produce an activity stream in Java, the idea was to have a JLabel and text area followed by a divider be displayed on a screen and then repeated X amount of times according to what data was in a database. What I was wondering is how could I possibly repeat the placing the jlabel, text area, and diveder on the screen above the last rendered objects on the fly and all displayed correctly no matter the size of the text area of each set of object sort of like the image below. Hope I made it clear as I could thanks

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  • Watch 53rd Grammy Awards 2011 Live Stream & Follow The Event On Facebook & Twitter

    - by Gopinath
    Grammy Awards is the biggest music awards ceremony that honours music genres. The 53rd Grammy Awards function will be held on February 13, 2011 at Staples Center in Los Angeles. The star studded musical event will be telecasted live on CBS TV between 8pm ET until 11:30pm ET. Behind The Scenes Live Stream On YouTube and Grammy.com Grammy, YouTube and TurboTax has teamed up to provide live stream of behind the scene coverage of key events starting at 5pm Feb 11th and runs through February 13th. Note that this stream will not broadcast the 3 hour long award presentation. Kind of bad, except the award presentation rest of the ceremony is streamed here.  The video stream is embedded below Catch live behind-the-scenes coverage of key events during GRAMMY week. Before the show, you can watch the Nominees Reception, Clive Davis Pre-GRAMMY Gala, the red carpet and the pre-telecast ceremony. During the show, go backstage to see the winners after they accept their award! You can catch the same stream on Grammys’s YouTube channel as well as on Grammy.com website Follow Grammy Awards On Facebook & Twitter The Grammy Awards has an official Facebook and Twitter account and you can follow them for all the latest information The Grammy’s Facebook Page The Grammy’s Twitter Page Grammy Live Streaming on UStream & Justin.tv Even though there is no official source that stream live of The Grammy Awards presentation ceremony, there will be plenty of unofficial sources on UStream and Justin.tv. So search UStream and Justin.tv for live streaming of The Grammy’s. TV Channels Telecasting The Grammy Awards 2011 Here is the list of TV channels in various countries offering live telecast of The Grammy Awards 2011. We keep updating this section as and when we get more information USA – CBS Television Network  – February 13, 2011 India – VH1 TV – February 14  2011 , 6:30 AM United Kingdom – ITV2  – 16 February 2011, 10:00PM – 12:00AM This article titled,Watch 53rd Grammy Awards 2011 Live Stream & Follow The Event On Facebook & Twitter, was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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  • Can the STREAM and GUPS (single CPU) benchmark use non-local memory in NUMA machine

    - by osgx
    Hello I want to run some tests from HPCC, STREAM and GUPS. They will test memory bandwidth, latency, and throughput (in term of random accesses). Can I start Single CPU test STREAM or Single CPU GUPS on NUMA node with memory interleaving enabled? (Is it allowed by the rules of HPCC - High Performance Computing Challenge?) Usage of non-local memory can increase GUPS results, because it will increase 2- or 4- fold the number of memory banks, available for random accesses. (GUPS typically limited by nonideal memory-subsystem and by slow memory bank opening/closing. With more banks it can do update to one bank, while the other banks are opening/closing.) Thanks. UPDATE: (you may nor reorder the memory accesses that the program makes). But can compiler reorder loops nesting? E.g. hpcc/RandomAccess.c /* Perform updates to main table. The scalar equivalent is: * * u64Int ran; * ran = 1; * for (i=0; i<NUPDATE; i++) { * ran = (ran << 1) ^ (((s64Int) ran < 0) ? POLY : 0); * table[ran & (TableSize-1)] ^= stable[ran >> (64-LSTSIZE)]; * } */ for (j=0; j<128; j++) ran[j] = starts ((NUPDATE/128) * j); for (i=0; i<NUPDATE/128; i++) { /* #pragma ivdep */ for (j=0; j<128; j++) { ran[j] = (ran[j] << 1) ^ ((s64Int) ran[j] < 0 ? POLY : 0); Table[ran[j] & (TableSize-1)] ^= stable[ran[j] >> (64-LSTSIZE)]; } } The main loop here is for (i=0; i<NUPDATE/128; i++) { and the nested loop is for (j=0; j<128; j++) {. Using 'loop interchange' optimization, compiler can convert this code to for (j=0; j<128; j++) { for (i=0; i<NUPDATE/128; i++) { ran[j] = (ran[j] << 1) ^ ((s64Int) ran[j] < 0 ? POLY : 0); Table[ran[j] & (TableSize-1)] ^= stable[ran[j] >> (64-LSTSIZE)]; } } It can be done because this loop nest is perfect loop nest. Is such optimization prohibited by rules of HPCC?

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  • Better data stream reading in Haskell

    - by Tim Perry
    I am trying to parse an input stream where the first line tells me how many lines of data there are. I'm ending up with the following code, and it works, but I think there is a better way. Is there? main = do numCases <- getLine proc $ read numCases proc :: Integer -> IO () proc numCases | numCases == 0 = return () | otherwise = do str <- getLine putStrLn $ findNextPalin str proc (numCases - 1) Note: The code solves the Sphere problem https://www.spoj.pl/problems/PALIN/ but I didn't think posting the rest of the code would impact the discussion of what to do here.

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  • Camera Stream in Flash Problem

    - by Peter
    Please help me fill the question marks. I want to get a feed from my camera and to pass it to the receive function. Also in flash builder(in design mode) how do I put elements so they can play a camera feed?? Because as it seems VideoDisplay just doesn't work public function receive(???:???):void{ //othercam is a graphic element(VideoDisplay) othercam.??? = ????; } private function send():void{ var mycam:Camera = Camera.getCamera(); //mycam2.attachCamera(mycam); //sendstr is a stream we send sendstr.attachCamera(mycam); //we pass mycam into receive sendstr.send("receive",mycam); }

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  • C++ stream as a parameter when overloading operator<<

    - by TheOm3ga
    I'm trying to write my own logging class and use it as a stream: logger L; L << "whatever" << std::endl; This is the code I started with: #include <iostream> using namespace std; class logger{ public: template <typename T> friend logger& operator <<(logger& log, const T& value); }; template <typename T> logger& operator <<(logger& log, T const & value) { // Here I'd output the values to a file and stdout, etc. cout << value; return log; } int main(int argc, char *argv[]) { logger L; L << "hello" << '\n' ; // This works L << "bye" << "alo" << endl; // This doesn't work return 0; } But I was getting an error when trying to compile, saying that there was no definition for operator<<: pruebaLog.cpp:31: error: no match for ‘operator<<’ in ‘operator<< [with T = char [4]](((logger&)((logger*)operator<< [with T = char [4]](((logger&)(& L)), ((const char (&)[4])"bye")))), ((const char (&)[4])"alo")) << std::endl’ So, I've been trying to overload operator<< to accept this kind of streams, but it's driving me mad. I don't know how to do it. I've been loking at, for instance, the definition of std::endl at the ostream header file and written a function with this header: logger& operator <<(logger& log, const basic_ostream<char,char_traits<char> >& (*s)(basic_ostream<char,char_traits<char> >&)) But no luck. I've tried the same using templates instead of directly using char, and also tried simply using "const ostream& os", and nothing. Another thing that bugs me is that, in the error output, the first argument for operator<< changes, sometimes it's a reference to a pointer, sometimes looks like a double reference...

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  • Java invalid stream header Problem

    - by David zsl
    Hi all, im writen a client-server app, and now i´m facing a problem that I dont know how to solve: This is the client: try { Socket socket = new Socket(ip, port); ObjectOutputStream ooos = new ObjectOutputStream(socket .getOutputStream()); SendMessage message = new SendMessage(); message.numDoc = value.numDoc; message.docFreq = value.docFreq; message.queryTerms = query; message.startIndex = startIndex; message.count = count; message.multiple = false; message.ips = null; message.ports = null; message.value = true; message.docFreq = value.docFreq; message.numDoc = value.numDoc; ooos.writeObject(message); ObjectInputStream ois = new ObjectInputStream(socket .getInputStream()); ComConstants mensajeRecibido; Object mensajeAux; String mensa = null; byte[] by = null; do { mensajeAux = ois.readObject(); if (mensajeAux instanceof ComConstants) { System.out.println("Thread by Thread has Search Results"); String test; ByteArrayOutputStream testo = new ByteArrayOutputStream(); mensajeRecibido = (ComConstants) mensajeAux; byte[] wag; testo.write( mensajeRecibido.fileContent, 0, mensajeRecibido.okBytes); wag = testo.toByteArray(); if (by == null) { by = wag; } else { int size = wag.length; System.arraycopy(wag, 0, by, 0, size); } } else { System.err.println("Mensaje no esperado " + mensajeAux.getClass().getName()); break; } } while (!mensajeRecibido.lastMessage); //ByteArrayInputStream bs = new ByteArrayInputStream(by.toByteArray()); // bytes es el byte[] ByteArrayInputStream bs = new ByteArrayInputStream(by); ObjectInputStream is = new ObjectInputStream(bs); QueryWithResult[] unObjetoSerializable = (QueryWithResult[])is.readObject(); is.close(); //AQUI TOCARIA METER EL QUICKSORT XmlConverter xce = new XmlConverter(unObjetoSerializable, startIndex, count); String serializedd = xce.runConverter(); tempFinal = serializedd; ois.close(); socket.close(); } catch (Exception e) { e.printStackTrace(); } i++; } And this is the sender: try { QueryWithResult[] outputLine; Operations op = new Operations(); boolean enviadoUltimo=false; ComConstants mensaje = new ComConstants(); mensaje.queryTerms = query; outputLine = op.processInput(query, value); //String c = new String(); //c = outputLine.toString(); //StringBuffer swa = sw.getBuffer(); ByteArrayOutputStream bs= new ByteArrayOutputStream(); ObjectOutputStream os = new ObjectOutputStream (bs); os.writeObject(outputLine); os.close(); byte[] mybytearray = bs.toByteArray(); ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(mybytearray); BufferedInputStream bis = new BufferedInputStream(byteArrayInputStream); int readed = bis.read(mensaje.fileContent,0,4000); while (readed > -1) { mensaje.okBytes = readed; if (readed < ComConstants.MAX_LENGTH) { mensaje.lastMessage = true; enviadoUltimo=true; } else mensaje.lastMessage = false; oos.writeObject(mensaje); if (mensaje.lastMessage) break; mensaje = new ComConstants(); mensaje.queryTerms = query; readed = bis.read(mensaje.fileContent); } if (enviadoUltimo==false) { mensaje.lastMessage=true; mensaje.okBytes=0; oos.writeObject(mensaje); } oos.close(); } catch (Exception e) { e.printStackTrace(); } } And this is the error log: Thread by Thread has Search Results java.io.StreamCorruptedException: invalid stream header: 20646520 at java.io.ObjectInputStream.readStreamHeader(Unknown Source) at java.io.ObjectInputStream.<init>(Unknown Source) at org.tockit.comunication.ServerThread.enviaFicheroMultiple(ServerThread.java:747) at org.tockit.comunication.ServerThread.run(ServerThread.java:129) at java.lang.Thread.run(Unknown Source) Where at org.tockit.comunication.ServerThread.enviaFicheroMultiple(ServerThread.java:747) is this line ObjectInputStream is = new ObjectInputStream(bs); on the 1st code just after while (!mensajeRecibido.lastMessage); Any ideas?

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  • 12.04's music players won't stream radio stations

    - by Jason
    I cannot get any music player in 12.04 to stream radio stations. My previous OS (ubuntu 10.04) had no problems with this. I have tried Rhythmbox and Exaile. neither works in 12.04 (but both work fine in 10.04. I inputted this stream: http://ummedia12.rs.itd.umich.edu:8004 I see that an internet connection is established by "Python" and I hear the "Advertisement" that plays right before the stream begins. But then just silence. The stream works fine in VLC, but I like to use the music players because they "store" the URL and have a tab that says Radio. I can find no way to "store" the URL in VLC. Anyone know what's wrong and why it's not working in the music players? I have fluendo plugins installed. I have python installed. I have ffmpeg installed.

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  • SSLCipherSuite - disable weak encryption, cbc cipher and md5 based algorithm

    - by John
    A developer recently ran a PCI Scan with TripWire against our LAMP server. They identified several issues and instructed the following to correct the issues: Problem: SSL Server Supports Weak Encryption for SSLv3, TLSv1, Solution: Add the following rule to httpd.conf SSLCipherSuite ALL:!aNULL:!eNULL:!LOW:!EXP:RC4+RSA:+HIGH:+MEDIUM Problem: SSL Server Supports CBC Ciphers for SSLv3, TLSv1 Solution: Disable any cipher suites using CBC ciphers Problem: SSL Server Supports Weak MAC Algorithm for SSLv3, TLSv1 Solution: Disable any cipher suites using MD5 based MAC algorithms I tried searching google for a comprehensive tutorial on how to construct an SSLCipherSuite directive to meet my requirements, but I didn't find anything I could understand. I see examples of SSLCipherSuite directives, but I need an explanation on what each component of the directive does. So even in the directive SSLCipherSuite ALL:!aNULL:!eNULL:!LOW:!EXP:RC4+RSA:+HIGH:+MEDIUM, I dont understand for example what the !LOW means. Can someone either a) tell me the SSLCipherSuite directive that will meet my needs or b) show me a resource that clearly explains each segment of a SSLCipherSuite is and how to construct one?

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  • Reading from an embedded resource stream

    - by shadeMe
    I've been trying to access an image resource named "IndexPointer.jpg" in an embedded RESX file called "Images.resx". GetManifestResourceNames() returns a single value - SCtor.Images.resources". Assembly::GetExecutingAssembly()-GetManifestResourceStream("SCtor.Images.resources.IndexPointer.jpg") only returns a nullptr. Obviously, I've got the manifest name wrong. What would be the correct one ?

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  • NHibernate - Stream large result sets?

    - by Dan Black
    Hi, I have to read in a large record set, process it, then write it out to a flat file. The large result set comes from a Stored Proc in SQL 2000. I currently have: var results = session.CreateSQLQuery("exec usp_SalesExtract").List(); I would like to be able to read the result set row by row, to reduce the memory foot print Thanks

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  • Android Reading from an Input stream efficiently

    - by RenegadeAndy
    Hey, I am making an HTTP get request to a website for an android application I am making. I am using a DefaultHttpClient and using HttpGet to issue the request. I get the entity response and from this obtain an InputStream object for getting the html of the page. I then cycle through the reply doing as follows: BufferedReader r = new BufferedReader(new InputStreamReader(inputStream)); String x = ""; x = r.readLine(); String total = ""; while(x!= null){ total += x; x = r.readLine(); } However this is horrendously slow. Is this inefficient? I'm not loading a big web page - www.cokezone.co.uk so the file size is not big. Is there a better way to do this? Thanks Andy

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  • What is the difference between calling Stream.Write and using a StreamWriter?

    - by John Nelson
    What is the difference between instantiating a Stream object, such as MemoryStream and calling the memoryStream.Write() method to write to the stream, and instantiating a StreamWriter object with the stream and calling streamWriter.Write()? Consider the following scenario: You have a method that takes a Stream, writes a value, and returns it. The stream is read from later on, so the position must be reset. There are two possible ways of doing it (both seem to work). // Instantiate a MemoryStream somewhere // - Passed to the following two methods MemoryStream memoryStream = new MemoryStream(); // Not using a StreamWriter private static Stream WriteToStream(Stream stream, string value) { stream.Write(Encoding.Default.GetBytes(value), 0, value.Length); stream.Flush(); stream.Position = 0; return stream; } // Using a StreamWriter private static Stream WriteToStreamWithWriter(Stream stream, string value) { StreamWriter sw = new StreamWriter(stream); sw.Write(value, 0, value.Length); sw.Flush(); stream.Position = 0; return stream; } This is partially a scope problem, as I don't want to close the stream after writing to it since it will be read from later. I also certainly don't want to dispose it either, because that will close my stream. The difference seems to be that not using a StreamWriter introduces a direct dependency on Encoding.Default, but I'm not sure that's a very big deal. What's the difference, if any?

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  • Ambiguous reference in Stream

    - by Sharpeye500
    This is the webservice method i have LoadImageFromDB(int ID, ref Stream streamReturnVal) I have this on the top of the section using Stream = System.IO.MemoryStream; Whenever i consume this method(update web reference) from a web application, i get this error 'Stream' is an ambiguous reference between 'System.IO.Stream' and 'WebReference.Stream' Any thoughts? In webservice class using Stream = System.IO.MemoryStream; LoadImageFromDB(int ID, ref Stream streamReturnVal); In web page where above webservice is consumed: using WebReference; Stream streamReturnVal = null; streamReturnVal = new MemoryStream(); WebserviceInstanceName.LoadImageFromDB(100,streamReturnVal ); PS: Stream - is from System.IO.Stream

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  • How to get a bytearray from file stream in Adobe AIR?

    - by Ole Jak
    How to get a bytearray from file stream in Adobe AIR? So I have a function protected function fileOpenSelected(event:Event):void { currentFile = event.target as File; stream = new FileStream(); stream.openAsync(currentFile, FileMode.READ); } How to get a full bytearray from stream to use it as normal bytearray?

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  • How to get stream to "in-memory" database created via H2DB?

    - by Reynevan
    I have to create such a mechanism: Create in-memory (H2DB) database; Create tables and fill them using some data; Get stream to that database; Send that stream via WebDAV or something else; I know everything except that "How to get stream to "in-memory" database created via H2DB"? And some explanations: I can't create file because of some server restrictions; I need that stream to create a file;

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