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• Why do I often have to refresh pages I navigate to once for them (or content in them) to load?

  - by GetOutOfBox

  I have noticed a bizarre pattern when using my PC, that when I open a link to a website, it often will often take a very long time to load, or time out. Sometimes content on the website will be drawn, but again, it seems to get "stuck" for an unusual amount of time before finishing. Most affected is Youtube; almost every time I navigate to a youtube video from another website such as Google, the video will not begin playing, but will instead just display the player controls with a black screen where the video should be and the buffering symbol, usually before displaying an error such as "The video failed to load". The unusual part of this problem is that whenever this happens, refreshing the page always causes it to load almost immediately the second time around, without any problems. Note that I'm not talking about how some browsers will dump whatever has been cached to the "pallet" briefly when the page is refreshed or loading stopped; but that the second time loading the website being faster. I have done my best to rule out some of the obvious causes: My Windows 7 desktop computer is the only device that seems to be affected. I use Firefox on it (latest version, flash updated, etc). My connection has more than enough bandwidth (30 megabits down, 4 up), and I've even tried QoSing all other devices to make sure this isn't happening due to usage spikes. Wireshark is not showing any clearly unusual network activity (i.e frequently dropped packets).

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• Overriding as_json has no effect?

  - by Ola Tuvesson

  I'm trying to override as_json in one of my models, partly to include data from another model, partly to strip out some unnecessary fields. From what I've read this is the preferred approach in Rails 3. To keep it simple, let's say I've got something like: class Country < ActiveRecord::Base def as_json(options={}) super( :only => [:id,:name] ) end end and in my controller simply def show respond_to do |format| format.json { render :json => @country } end end Yet whatever i try, the output always contains the full data, the fields are not filtered by the ":only" clause. Basically, my override doesn't seem to kick in, though if I change it to, say... class Country < ActiveRecord::Base def as_json(options={}) {foo: "bar"} end end ...I do indeed get the expected JSON output. Have I simply got the syntax wrong?

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• Piping SoX in Python - subprocess alternative?

  - by Cochise Ruhulessin

  I use SoX in an application. The application uses it to apply various operations on audiofiles, such as trimming. This works fine: from subprocess import Popen, PIPE kwargs = {'stdin': PIPE, 'stdout': PIPE, 'stderr': PIPE} pipe = Popen(['sox','-t','mp3','-', 'test.mp3','trim','0','15'], **kwargs) output, errors = pipe.communicate(input=open('test.mp3','rb').read()) if errors: raise RuntimeError(errors) This will cause problems on large files hower, since read() loads the complete file to memory; which is slow and may cause the pipes' buffer to overflow. A workaround exists: from subprocess import Popen, PIPE import tempfile import uuid import shutil import os kwargs = {'stdin': PIPE, 'stdout': PIPE, 'stderr': PIPE} tmp = os.path.join(tempfile.gettempdir(), uuid.uuid1().hex + '.mp3') pipe = Popen(['sox','test.mp3', tmp,'trim','0','15'], **kwargs) output, errors = pipe.communicate() if errors: raise RuntimeError(errors) shutil.copy2(tmp, 'test.mp3') os.remove(tmp) So the question stands as follows: Are there any alternatives to this approach, aside from writing a Python extension to the Sox C API?

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• How To Get The Outout of Win32::Process command in perl

  - by rockyurock

  hello all, i am using "use Win32::Process" for my application run as below, it runs fine but i did not get any way to get the output to a .txt file. i used NORMAL_PRIORITY_CLASS rather than CREATE_NEW_CONSOLE to get the output on the same terminal itself but i don't know how to redirect it to a txt file. /rocky !/usr/bin/perl use strict; use warnings; use Win32::Process; Win32::Process::Create(my $ProcessObj, "iperf.exe", "iperf.exe -u -s -p 5001", 0, NORMAL_PRIORITY_CLASS, ".") || die ErrorReport(); my @command_output; push @command_output,$ProcessObj; open FILE, "zz.txt" or die $!; print FILE @command_output; close FILE; sleep 10; $ProcessObj-Kill(0); sub ErrorReport{ print Win32::FormatMessage( Win32::GetLastError() ); }

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• MDX: Aggregates over a set

  - by =!3fb7.13e2.c801.b5f3

  Hi! What I am trying to achieves looks very simple, yet I cannot make it work. My facts are orders which have a date and I have a typical time dimension with the 'Month" and 'Year' levels. I would like to get an output which lists the number of orders for the last 6 months and the total, like this: Oct 2009 20 Nov 2009 30 Dec 2009 25 Jan 2009 15 Feb 2010 45 Mar 2010 5 Total 140 I can create the set with the members Oct 2009 until Mar 2010 and I manage to get this part of my desired output: Oct 2009 20 Nov 2009 30 Dec 2009 25 Jan 2009 15 Feb 2010 45 Mar 2010 5 Just I fail to get the total line.

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• Unit Test ouput in MSBuild/TFS 2008

  - by Adam Jenkin

  I have a build in TFS 2008 which includes the running of a UnitTest project. I have configured my build as such that in the drop folder after each build, I get a StyleCop.log, FxCop.log and would like to place the trx or output from the unit tests here also. I can see that my unit tests are running as part of the build, however currently I cannot find were the output is saved to or find a way of setting the ouput to my drop location ($(DropLocation)\$(BuildNumber)\MyUnitTests.txt) My unit tests are included by using the following:- <RunTest>true</RunTest> ... <ItemGroup> <TestContainer Include="$(OutDir)\%2aMyUnitTests.dll" /> </ItemGroup> Can somebody help explain how I can achieve this.

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• Unable to execute stored Procedure using Java and JDBC on SQL server

  - by jwmajors81

  I have been trying to execute a MS SQL Server stored procedure via JDBC today and have been unsuccessful thus far. The stored procedure has 1 input and 1 output parameter. With every combination I use when setting up the stored procedure call in code I get an error stating that the stored procedure couldn't be found. I have provided the stored procedure I'm executing below (NOTE: this is vendor code, so I cannot change it). set ANSI_NULLS ON set QUOTED_IDENTIFIER ON GO ALTER PROC [dbo].[spWCoTaskIdGen] @OutIdentifier int OUTPUT AS BEGIN DECLARE @HoldPolicyId int DECLARE @PolicyId char(14) IF NOT EXISTS ( SELECT * FROM UniqueIdentifierGen (UPDLOCK) ) INSERT INTO UniqueIdentifierGen VALUES (0) UPDATE UniqueIdentifierGen SET CurIdentifier = CurIdentifier + 1 SELECT @OutIdentifier = (SELECT CurIdentifier FROM UniqueIdentifierGen) END The code looks like: CallableStatement statement = connection .prepareCall("{call dbo.spWCoTaskIdGen(?)}"); statement.setInt(1, 0); ResultSet result = statement.executeQuery(); I get the following error: SEVERE: Could not find stored procedure 'dbo.spWCoTaskIdGen'. I have also tried CallableStatement statement = connection .prepareCall("{? = call dbo.spWCoTaskIdGen(?)}"); statement.registerOutParameter(1, java.sql.Types.INTEGER); statement.registerOutParameter(2, java.sql.Types.INTEGER); statement.executeQuery(); The above results in: SEVERE: Could not find stored procedure 'dbo.spWCoTaskIdGen'. I have also tried: CallableStatement statement = connection .prepareCall("{? = call spWCoTaskIdGen(?)}"); statement.registerOutParameter(1, java.sql.Types.INTEGER); statement.registerOutParameter(2, java.sql.Types.INTEGER); statement.executeQuery(); The code above resulted in the following error: Could not find stored procedure 'spWCoTaskIdGen'. Finally, I should also point out the following: I have used the MS SQL Server Management Studio tool and have been able to successfully run the stored procedure. The sql generated to execute the stored procedure is provided below: GO DECLARE @return_value int, @OutIdentifier int EXEC @return_value = [dbo].[spWCoTaskIdGen] @OutIdentifier = @OutIdentifier OUTPUT SELECT @OutIdentifier as N'@OutIdentifier ' SELECT 'Return Value' = @return_value GO The code being executed runs with the same user id that was used in point #1 above. In the code that creates the Connection object I log which database I'm connecting to and the code is connecting to the correct database. Any ideas? Thank you very much in advance.

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• Ruby delete method (string manipulation)

  - by brianheys

  I'm new to Ruby, and have been working my way through Mr Neighborly's Humble Little Ruby Guide. There have been a few typos in the code examples along the way, but I've always managed to work out what's wrong and subsequently fix it - until now! This is really basic, but I can't get the following example to work on Mac OS X (Snow Leopard): gone = "Got gone fool!" puts "Original: " + gone gone.delete!("o", "r-v") puts "deleted: " + gone Output I'm expecting is: Original: Got gone fool! deleted: G gne fl! Output I actually get is: Original: Got gone fool! deleted: Got gone fool! The delete! method doesn't seem to have had any effect. Can anyone shed any light on what's going wrong here? :-\

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• How do I execute a shell-command in background?

  - by Adobe

  Here's a simple defun to run a shell script: (defun bk-konsoles () "Calls: bk-konsoles.bash" (interactive) (shell-command (concat (expand-file-name "~/its/plts/goodies/bk-konsoles.bash ") (if (buffer-file-name) (file-name-directory (buffer-file-name))) " &") nil nil)) If I start a program with no ampersand - it start the script, but blocks emacs until I close the program, if I don't put ampersand it gives error: /home/boris/its/plts/goodies/bk-konsoles.bash /home/boris/scl/geekgeek/: exited abnormally with code 1. Edit: So now I'm using: (defun bk-konsoles () "Calls: bk-konsoles.bash" (interactive) (shell-command (concat (expand-file-name "~/its/plts/goodies/bk-konsoles.bash ") (if (buffer-file-name) (file-name-directory (buffer-file-name))) " & disown") nil nil) (kill-buffer "*Shell Command Output*")) Edit 2: Nope - doesn't work: (defun bk-konsoles () "Calls: bk-konsoles.bash" (interactive) (let ((curDir default-directory)) ;; (shell-command (concat "nohup " (expand-file-name "~/its/plts/goodies/bk-konsoles.bash ") curDir) nil nil) (shell-command (concat (expand-file-name "~/its/plts/goodies/bk-konsoles.bash ") curDir "& disown") nil nil) (kill-buffer "*Shell Command Output*"))) keeps emacs busy - either with disown, or nohup. Here's a script I'm running if it might be of help: bk-konsoles.bash

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• deciding between subprocess, multiprocesser and thread in Python?

  - by user248237

  I'd like to parallelize my Python program so that it can make use of multiple processors on the machine that it runs on. My parallelization is very simple, in that all the parallel "threads" of the program are independent and write their output to separate files. I don't need the threads to exchange information but it is imperative that I know when the threads finish since some steps of my pipeline depend on their output. Portability is important, in that I'd like this to run on any Python version on Mac, Linux and Windows. Given these constraints, which is the most appropriate Python module for implementing this? I am tryign to decide between thread, subprocess and multiprocessing, which all seem to provide related functionality. Any thoughts on this? I'd like the simplest solution that's portable. Thanks.

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• Automating Visual Studio 2010 from a console app

  - by JoelFan

  I am trying to run the following code (which I got from here). The code just creates a new "Output" pane in Visual Studio and writes a few lines to it. Public Sub WriteToMyNewPane() Dim win As Window = _ DTE.Windows.Item(EnvDTE.Constants.vsWindowKindOutput) Dim ow As OutputWindow = win.Object Dim owPane As OutputWindowPane Dim cnt As Integer = ow.OutputWindowPanes.Count owPane = ow.OutputWindowPanes.Add("My New Output Pane") owPane.Activate() owPane.OutputString("My text1" & vbCrLf) owPane.OutputString("My text2" & vbCrLf) owPane.OutputString("My text3" & vbCrLf) End Sub Instead of running it as a Macro, I want to run it as an independent console application that connects to a currently running instance of Visual Studio 2010. I'm having a hard time figuring out how to set the value of DTE. I think I may need to call GetActiveObject, but I'm not sure how. Any pointers?

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• ASP.NET Nested Repeater Accessing elements

  - by Rich

  I have a list of Accommodation objects bound to a Repeater, and then a nested Repeater which has the various attendee groups listed [e.g. Default, Seniors, Juniors]. This is all output fine, with the values displayed as LinkButtons, which when clicked gets sent to a code-behind event handler. Here is an example of the output to give you a picture [with some er... interesting attendee group names]: In the event handler, I test the object parameter to see which Repeater has been sent, as the outer repeater's links can also be clicked [so the Accommodation would be set, but no Attendee Group]. Is there a way to get a HiddenField from the outer RepeaterItem that contains the currently clicked inner repeater's LinkButton? E.g. From the image, I click the Attending link in the Women section. So the EventArgs via FindControl can get me the hidden field which contains the Attendee Group's ID, which is good, but I also need the Accommodation ID [to know whether it was either Wimbledon Hotel Inn or New Acc]

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• Converting 24BPP to 4BPP with GDI+ in VB.NET

  - by Chris

  My VB.NET program currently takes a 4BPP TIFF as an Bitmap, converts it to a Graphic, adds some text strings and then saves it out again as a TIFF file. The output Bitmap.Save() TIFF file by default seems to be 24BPP (regardless of the input) and is a lot larger than the original TIFF. Is it possible to keep the same 4BPP palette encoding as the input for the output and if not, how can I convert my Bitmap PixelFormat from 24BPP to 4BPP Indexed. I've seen an example for converting 24 BPP to 1 BPP at http://www.bobpowell.net/onebit.htm using BitmapData.Lockbits() but cannot figure out how to do it for 4BPP. Many thanks Chris

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• sed/awk or other: increment a number by 1 keeping spacing characters

  - by WizardOfOdds

  I've got a string: (notice the spacing) eh oh 37 and I want it to become: eh oh 36 (so I want to keep the spacing) Using awk I don't find how to do it, so far I have: echo "eh oh 37" | awk '$3>=0&&$3<=99 {$3--} {print}' But this gives: eh oh 36 (the spacing characters where lost, because the field separator is ' ') Is there a way to ask awk something like "print the output using the exact same field separators as the input had"? Then I tried with sed, but got stuck after this: echo "eh oh 37" | sed -e 's/\([0-9][0-9]\)/.../' Can I do arithmetic from sed using a reference to the matching digits and have the output not modify the number of spacing characters? Note that it's related to my question concerning Emacs and how to apply this to some (big) Emacs region (using a replace region with Emacs's shell-command-on-region) but it's not an identical question: this one is specifically about how to "keep spaces" when working with awk/sed/etc.

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• Making a python iterator go backwards?

  - by uberjumper

  Is there anyway to make a python list iterator to go backwards? Basically i have this class IterTest(object): def __init__(self, data): self.data = data self.__iter = None def all(self): self.__iter = iter(self.data) for each in self.__iter: mtd = getattr(self, type(each).__name__) mtd(each) def str(self, item): print item next = self.__iter.next() while isinstance(next, int): print next next = self.__iter.next() def int(self, item): print "Crap i skipped C" if __name__ == '__main__': test = IterTest(['a', 1, 2,3,'c', 17]) test.all() Running this code results in the output: a 1 2 3 Crap i skipped C I know why it gives me the output, however is there a way i can step backwards in the str() method, by one step?

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• how to write unicode hello world in C on windows

  - by hatchetman82

  im tyring to get this to work: #define UNICODE #define _UNICODE #include <wchar.h> int main() { wprintf(L"Hello World!\n"); wprintf(L"£?, ?, ?!\n"); return 0; } using visual studio 2008 express (on windows xp, if it matters). when i run this from the command prompt (started as cmd /u which is supposed to enable unicode ?) i get this: C:\dev\unicodevs\unicodevs\Debugunicodevs.exe Hello World! -ú8 C:\dev\unicodevs\unicodevs\Debug which i suppose was to be expected given that the terminal does not have the font to render those. but what gets me is that even if i try this: C:\dev\unicodevs\unicodevs\Debugcmd /u /c "unicodevs.exe output.txt" the file produced (even though its UTF-8 encoded) looks like: Hello World! £ì the source file itself is defined as unicode (encoded in UTF-8 without BOM). the compiler output when building: 1------ Rebuild All started: Project: unicodevs, Configuration: Debug Win32 ------ 1Deleting intermediate and output files for project 'unicodevs', configuration 'Debug|Win32' 1Compiling... 1main.c 1.\main.c(1) : warning C4005: 'UNICODE' : macro redefinition 1 command-line arguments : see previous definition of 'UNICODE' 1.\main.c(2) : warning C4005: '_UNICODE' : macro redefinition 1 command-line arguments : see previous definition of '_UNICODE' 1Note: including file: C:\Program Files\Microsoft Visual Studio 9.0\VC\include\wchar.h 1Note: including file: C:\Program Files\Microsoft Visual Studio 9.0\VC\include\crtdefs.h 1Note: including file: C:\Program Files\Microsoft Visual Studio 9.0\VC\include\sal.h 1C:\Program Files\Microsoft Visual Studio 9.0\VC\include\sal.h(108) : warning C4001: nonstandard extension 'single line comment' was used 1Note: including file: C:\Program Files\Microsoft Visual Studio 9.0\VC\include\crtassem.h 1Note: including file: C:\Program Files\Microsoft Visual Studio 9.0\VC\include\vadefs.h 1Note: including file: C:\Program Files\Microsoft Visual Studio 9.0\VC\include\swprintf.inl 1Note: including file: C:\Program Files\Microsoft Visual Studio 9.0\VC\include\wtime.inl 1Linking... 1Embedding manifest... 1Creating browse information file... 1Microsoft Browse Information Maintenance Utility Version 9.00.30729 1Copyright (C) Microsoft Corporation. All rights reserved. 1Build log was saved at "file://c:\dev\unicodevs\unicodevs\unicodevs\Debug\BuildLog.htm" 1unicodevs - 0 error(s), 3 warning(s) ========== Rebuild All: 1 succeeded, 0 failed, 0 skipped ========== any ideas on what am i doing wrong ? similar questions on ST (like this one: http://stackoverflow.com/questions/787589/unicode-hello-world-for-c) seem to refer to *nix builds - as far as i understand setlocale() is not available for windows. i also tried building this using code::blocks/mingw gcc, but got the same results.

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• Sniffing LPT Traffic

  - by ArcherT

  I need to intercept LPT output traffic. After a couple of hours of research, I've come to understand that the only way to do this is by writing a kernel-mode driver, more precisely a "filter driver"...? I've downloaded the WDK, but the terminology and vast number of driver types is a little overwhelming. I'm basically trying to understand what kind of driver I should be writing; my target environment is Windows XP SP2 and 3 only. Some background info, if it matters: I have a bunch of legacy DOS apps that print to LPT1. I'd like to be able to capture this output and redirect this data (after GDI calls) to a modern USB (network) printer. Fortunately, the latter part of the problem's easy. I'm hoping someone could point me in the right direction. TIA.

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• bash bcmath functions

  - by Gordon

  I have two functions for GNU bc in a Bash script. BC_CEIL="define ceil(x) { if (x>0) { if (x%1>0) return x+(1-(x%1)) else return x } else return -1*floor(-1*x) }\n" BC_FLOOR="define floor(x) { if (x>0) return x-(x%1) else return -1*ceil(-1*x) }\n" echo -e "scale=2"$BC_CEIL$BC_FLOOR"ceil(2.5)" | bc Both functions work fine in interactive bc. bc does not seem to allow multiple functions on one line separated by ; though, so I have to echo -n | bc with newlines at the end of each function. The above output is 2.5, not the expected 3.0 that I get if I type it into bc -i myself. It seems that bash calls bc for each line of echo output, rather than echo'ing it all to a single instance. Is there any workaround for this?

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• Pointer initialization doubt

  - by Jestin Joy

  We could initialize a character pointer like this in C. char *c="test"; Where c points to the first character(t). But when I gave code like below. It gives segmentation fault. #include<stdio.h> #include<stdlib.h> main() { int *i=0; printf("%d",*i); } Also when I give #include<stdio.h> #include<stdlib.h> main() { int *i; i=(int *)malloc(2); printf("%d",*i); } It worked(gave output 0). When I gave malloc(0), it worked(gave output 0). Please tell what is happening

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• Problem inserting parameters into a function

  - by SoLoGHoST

  Ok, I am trying to place parameters into a function that is called like so: $parameters['function']($parameters['params']); Here is the function and the parameters that I need to be placed into this: $parameters['function'] = 'test_error'; $parameters['params'] = array(0 => $txt['sometext'], 1 => 'critical', 2 => true); The test_error function takes 3 parameters: The error to output The type of error noted within a string value ('general', 'critical', etc. etc.). Whether it should be echoed or not. Here is the output I get: Here is a test error.ArraycriticalArray1 I know this function works perfect, but it only gives me the 1st parameter returned from it. What am I doing wrong here with the $parameters['params']??

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• Problem with recording audio in Flash (Red5, ffmpeg)

  - by AT

  I'm trying to implement a small program with Flash and php that records audio and converts it to mp3. Currently I have Red5 server up and running, I can connect to it with no problems and I can publish flv recordings to the server. When I listen to the flv with Wimpy FLV player it seems to be fine. The problem comes when I'm trying to convert it with ffmpeg on the command line. I'm simply using a command ffmpeg -i but the output wav is about 50% slower than the input. When I record 10sec, the output is 15sec and pitched down. I've also tried all kinds of bitrate settings, -nv option, etc. but nothing seems to work. I have a recent version of ffmpeg that supports nellymoser format.. Don't know what to do. Anyone have any ideas?

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• Performance Improvement: Alternative for array_flip function.

  - by Rachel

  Is there any way I can avoid using array_flip to optimize performance. I am doing a select statement from database, preparing the query and executing it and storing data as an associative array in $resultCollection and than I have array op and for each element in $resultCollection am storing its outputId in op[] as evident from the code. I have explained code and so my question is how can I achieve an similar alternative for array_flip with using array_flip as I want to improve performance. $resultCollection = $statement->fetchAll(PDO::FETCH_ASSOC); $op = array(); //Looping through result collection and storing unicaOfferId into op array. foreach ($resultCollection as $output) { $op[] = $output['outputId']; } //Here op array has key as 0, 1, 2...and value as id {which I am interested in} //Flip op array to get unica offer ids as key $op = array_flip($op); //Doing a flip to get id as key. foreach ($ft as $Id => $Off) { $ft[$Id]['is_set'] = isset($op[$Id]); }

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• Exporting info from PS script to csv

  - by George

  Hi, This is a powershell/AD/Exchange question.... I'm running a script against a number of Users to check some of their attributes however I'm having trouble getting this to output to CSV. The script runs well and does exactly what I need it to do, the output on screen is fine, I'm just having trouble getting it to directly export to csv. The input is a comma seperated txt file of usernames (eg "username1,username2,username3") I've experimented with creating custom ps objects, adding to them and then exporting those but its not working.... Any suggestions gratefully received.. Thanks George $array = Get-Content $InputPath #split the comma delimited string into an array $arrayb = $array.Split(","); foreach ($User in $arrayb) { #find group memebership Write-Host "AD group membership for $User" Get-QADMemberOf $User #Get Mailbox Info Write-Host "Mailbox info for $User" Get-Mailbox $User | select ServerName, Database, EmailAddresses, PrimarySmtpAddress, WindowsEmailAddress #get profile details Write-Host "Home drive info for $User" Get-QADUser $User| select HomeDirectory,HomeDrive #add space between users Write-Host "" Write-Host "******************************************************" } Write-Host "End Script"

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• Python os.path.join on Windows

  - by Jim

  I am trying to learn python and am making a program that will output a script. I want to use os.path.join, but am pretty confused. According to the docs if I say: os.path.join('c:', 'sourcedir') I get "C:sourcedir". According to the docs, this is normal, right? But when I use the copytree command, Python will output it the desired way, for example: import shutil src = os.path.join('c:', 'src') dst = os.path.join('c':', 'dst') shutil.copytree(src, dst) Here is the error code I get: WindowsError: [Error 3] The system cannot find the path specified: 'C:src/*.*' If I wrap the os.path.join with os.path.normpath I get the same error. If this os.path.join can't be used this way, then I am confused as to its purpose. According to the pages suggested by Stack Overflow, slashes should not be used in join—that is correct, I assume?

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• Accents in file name using Java on Solaris

  - by Stef

  I have a problem where I can't write files with accents in the file name on Solaris. Given following code public static void main(String[] args) { System.out.println("Charset = "+ Charset.defaultCharset().toString()); System.out.println("testéörtkuoë"); FileWriter fw = null; try { fw = new FileWriter("testéörtkuoë"); fw.write("testéörtkuoëéörtkuoë"); fw.close(); I get following output Charset = ISO-8859-1 test??rtkuo? and I get a file called "test??rtkuo?" Based on info I found on StackOverflow, I tried to call the Java app by adding "-Dfile.encoding=UTF-8" at startup. This returns following output Charset = UTF-8 testéörtkuoë But the filename is still "test??rtkuo?" Any help is much appreciated. Stef

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