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  • Hiredis waiting for message

    - by Vivek Goel
    I am using hiredis C library to connect to redis server. I am not able to figure out how to wait for new messages after subscribing to new message. My code look like: signal(SIGPIPE, SIG_IGN ); struct event_base *base = event_base_new(); redisAsyncContext *c = redisAsyncConnect("127.0.0.1", 6379); if (c->err) { /* Let *c leak for now... */ printf("Error: %s\n", c->errstr); return 1; } redisLibeventAttach(c, base); redisAsyncSetConnectCallback(c, connectCallback); redisAsyncSetDisconnectCallback(c, disconnectCallback); redisAsyncCommand(c, NULL, NULL, "SET key %b", argv[argc - 1], strlen(argv[argc - 1])); redisAsyncCommand(c, getCallback, (char*) "end-1", "GET key"); redisAsyncCommand(c, getCallback, (char*) "end-1", "SUBSCRIBE foo"); Now how to tell hiredis to wait for message on channel ?

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  • jQuery - How to combine has() and gt()

    - by KatieK
    With jQuery 1.4.2, I can't figure out how to combine has() with :gt. I'd like to select any ul which contains more than 3 lis, so here's what I've tried: $(document).ready(function(){ $("ul.collapse:has(li:gt(2))") .each( function() { $(this).css("border", "solid red 1px"); }); }); This does work with the 1.2.6 jQuery library, but not 1.3.2 or 1.4.2. I'd appreciate any help in understanding what's going on here. Thanks!

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  • Issues using UITapGestureRecognizers in Interface Builder

    - by 5StringRyan
    I'm attempting to use the UITapGestureRecognizer object that can be found in Interface Builder. I've dragged a single "UITapGestureRecognizer" from the object library to a single view xib. I then create an IBAction method from this tap gesture, for a simple test, I'm just printing an "NSLog" message to the console once there is a tap on the view. I've run this, and the tap method isn't being called. I right click the view in IB and I noticed that there is a warning "!" on the view's "Outlook Collections" I see: Outlook Collections gestureRecognizers - Tap Gesture Recognizer (!) The warning states: UIView does not have an outlet collection named gestureRecognizers. What do I need to do to remedy this?

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  • Powershell equivilent of python's if __name__ == '__main__':

    - by Mark Mascolino
    I am really fond of python's capability to do things like this: if __name__ == '__main__': #setup testing code here #or setup a call a function with parameters and human format the output #etc... This is nice because I can treat a Python script file as something that can be called from the command line but it remains available for me to import its functions and classes into a separate python script file easily without triggering the default "run from the command line behavior". Does Powershell have a similar facility that I could exploit? And if it doesn't how should I be organizing my library of function files so that i can easily execute some of them while I am developing them?

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  • Parsing and validating arbitrary date formats in ruby (on rails)

    - by Matt Briggs
    I have a requirement to handle custom date formats in an existing app. The idea is that the users have to do with multiple formats from outside sources they have very little control over. We will need to be able to take the format and both validate Dates against it, as well as parse strings specifically in that format. The other thing is that these can be completely arbitrary, like JA == January, FE == February, etc... to my understanding, chronic only handles parsing (and does it in a more magical way then I can use), and enter code here DateTime#strptime comes close, but doesn't really handle the whole two character month scenario, even with custom formatters. The 'nuclear' option is to write in custom support for edge cases like this, but I would prefer to use a library if something like this exists.

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  • Incompatible classes when loading SWF

    - by Bart van Heukelom
    I have two ActionScript 3 projects, game(.swf) and minigame(.swf). At runtime the main game loads the minigame via Loader. I also have a shared library (SWC) of event classes, included by both, which minigame will need to dispatch and game will need to listen to. First: Is this possible this way? Second: What will happen if I compile the minigame, then change the event classes so they're incompatible, then compile the main game. Will Flash crash when trying to load the minigame SWF? (I hope so) Third: And what will happen if I change the event classes, but in a way that preserves interface-level compatibility?

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  • Add directories to root of Zip folder Ionic Zip c#

    - by Movieboy
    I asked this a few months ago, and only received one response which didn't work. I've been tinkering with it for the past few weeks, and I'm still completely lost, so I would appreciate anyone else's input as I'm all out of ideas. what I'm trying to do is add a list of folders and files all to the root of my Zip file, using the Ionic Zip library (c#). Here's what I have so far string k = "B:/My Documents/Workspace"; private void button1_Click(object sender, EventArgs e) { using (ZipFile zip = new ZipFile()) { //add directory, give it a name zip.AddDirectory(k); zip.Save("t.zip"); } } Now, I want my zip to be looking like this. t.zip -Random Files and Folder But it's looking like this. t.zip -t (folder) -Random files and folders Any help would be appreciated, Thank you.

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  • Discrete event simulation framework for .NET

    - by Kuba
    Does anyone have an experience with some discrete event simulation library that could be used in .NET (C#)? Despite the basic functionality for queing events and dispatching them, it would be fine to have some non-deterministic behavior (e.g. failures simulation). I have some tips and I am even considering to write my own, but first, I would like to collect some recomendations. Thanks. Additional info: i'm not looking explicitly for free product, however, the prize matters :) Just to precise the field i need to map, here is the example of a product: http://www.holushko.com/index.html

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  • Python implementation of avro slow?

    - by lazy1
    I'm reading some data from avro file using the avro library. It takes about a minute to load 33K objects from the file. This seem very slow to me, specially with the Java version reading the same file in about 1sec. Here is the code, am I doing something wrong? import avro.datafile import avro.io from time import time def load(filename): fo = open(filename, "rb") reader = avro.datafile.DataFileReader(fo, avro.io.DatumReader()) for i, record in enumerate(reader): pass return i + 1 def main(argv=None): import sys from argparse import ArgumentParser argv = argv or sys.argv parser = ArgumentParser(description="Read avro file") start = time() num_records = load("events.avro") end = time() print("{0} records in {1} seconds".format(num_records, end - start)) if __name__ == "__main__": main()

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  • Github svn interface

    - by Fabio
    I recently moved a project on github and I still use this library in some svn projects as external. However I can't get github svn interface working at this time. If I run svn list http://svn.github.com/fabn/zle.git I obtain this error svn: Server sent unexpected return value (500 Internal Server Error) in response to PROPFIND request for '/fabn/zle.git/!svn/bc/0' If I run the same command using a fork of my project the list (and also the checkout) goes fine and i obtain what I need (this is the command svn list http://svn.github.com/JellyBelly/zle.git) Is there anything I can do to resolve this issue or it's a github problem?

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  • "Thread-Safe Calls" with "Invoke" method to Winform control leads very heavy memory leak!!

    - by konnychen
    In the following link: "Make Thread-Safe Calls to Windows Forms Controls http://msdn.microsoft.com/en-us/library/ms171728.aspx" We can see an example which provide cross tread access to a winform control. But if the thread is in a while loop, it will cause the heavy memory leak. As I use taskmanage I can see the memory is increasing. Can anyone help me to solve the problem? oThread2 = new Thread(new ThreadStart(Cyclic_Call)); oThread2.Start(); delegate void SetText_lab_Statubar(string text); private void m_SetText_lab_Statubar(string text) { if (this.lab_Statubar.InvokeRequired) { SetText_lab_Statubar d = new SetText_lab_Statubar(m_SetText_lab_Statubar); this.Invoke(d, new object[] { text }); } else { this.lab_Statubar.Text = text; } } private void Cyclic_Call() { do { this.m_SetText_lab_Statubar("This string is set from thread"); Thread.Sleep(100); } while (!b_AbortThraed); }

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  • Can I expose MySQL data using PHP and OData?

    - by user359796
    As I understand it, OData is just a standardized way to expose relational data RESTfully. If I've got a PHP application, it should be able to process those RESTful requests and manipulate a MySQL database based on the request data and then return an ATOM feed. First, are the preceeding statements correct? Second, does a PHP library to do this already exist or would I have to create my own? If I have completely misunderstood these technologies and my question doesn't make sense, please feel free to let me know.

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  • Canonicalizing XML in Ruby

    - by whazzmaster
    I'm working on a SAML gateway using Ruby/Rails and I'm attempting to write some code that validates the xml digital signature of the incoming SAML response against the x509 cert of the originating service. My problem: the signature depends on a canonicalized version of the XML that is hashed and then signed and I'm having trouble finding a ruby lib/gem that will canonicalize XML per the spec. I found a super old gem on rubyforge that is a mess but I'd be more interested if something like nokogiri supported this kind of functionality (from the nokogiri docs, it doesn't). I've googled extensively but thought I'd ask around here to see if anyone has any good insights before I go and try to write my own version or rework the existing c14n-r library.

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  • Silverlight 3 and System.ServiceProcess - Doesn't allow the reference to be added.

    - by Brad8118
    I'm trying to write a program that can stop and start services using SilverLight 3 and VS2010. I can't add the reference to the System.ServiceProcess dll. C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.ServiceProcess.dll 1st why? - It it just a security precaution? 2- Is there a work around? Does SilverLight have a different library that I can use to start and stop services. Also note that this is a desktop application and not a web app. It will be sitting on my desktop to toggle services on and off.

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  • ResultSet and aggregation

    - by kachanov
    Ok, I admit my situation is special There is a data system that supports SQL-92 and JDBC interface However the SQL requets are pretty expensive, and in my application I need to retreive the same data multiple times and aggregate it ("group by") on different fields to show different dimensions of the same data. For example on one screen I have three tables that show the same set or records but aggregated by City (1st grid), by Population (2nd grid), by number of babies (3rd grid) This amounts to 3 SQL queries (which is very slow), UNLESS anyone of you can suggest any idea any library from apache commons or from google code, so that I can select all records into ResultSet and get 3 arrays of data group by different fields from this single ResultSet. Am I'm missing some obvious and unexpected solution to this problem?

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  • Styling WPF Toolkit DataGrid Column Headers

    - by ChrisFletcher
    Hi, I'm having an issue styling the WPF Datagrid, I've styled the column headers (of type ColumnHeader). But when the data in the columns does not fill the full width of the grid an additional column is added to pad out the grid. This column ignores the ColumnHeader style and looks out of place presumably because the element has a different type, I've looked through the library in object browser but I can't find this element. I've also considered fixing the sizes so this column is unnecessary but thats not a viable option. The problem is demonstrated in the following article: http://blogs.msdn.com/jaimer/archive/2009/01/20/styling-microsoft-s-wpf-datagrid.aspx The element I mean is in the top right, just to the right of green column 3 and just above the cell with the row background arrow.

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  • Subtracting Delphi Time Ranges from a Date Range, Calculate Remaining Time

    - by Anagoge
    I'm looking for an algorithm that will help calculate a workday working time length. It would have an input date range and then allow subtracting partially or completely intersecting time range slices from that date range and the result would be the number of minutes (or the fraction/multiple of a day) left in the original date range, after subtracting out the various non-working time slices. For Example: Input date range: 1/4/2010 11:21 am - 1/5/2010 3:00 pm Subtract out any partially or completely intersecting slices like this: Remove all day Sunday Non-Sundays remove 11:00 - 12:00 Non-Sundays remove time after 5:00 pm Non-Sundays remove time before 8:00 am Non-Sundays remove time 9:15 - 9:30 am Output: # of minutes left in the input date range I don't need anything overly-general. I could hardcode the rules to simplify the code. If anyone knows of sample code or a library/function somewhere, or has some pseudo-code ideas, I'd love something to start with. I didn't see anything in DateUtils, for example. Even a basic function that calculates the number of minutes of overlap in two date ranges to subtract out would be a good start.

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  • Is there a standard literal constant that I can use instead of "utf-8" in C# (.Net 3.5)?

    - by Hamish Grubijan
    Hi, I would like to find a better way to do this: XmlNode nodeXML = xmlDoc.AppendChild( xmlDoc.CreateXmlDeclaration( "1.0", "utf-8", String.Empty) ); I do not want to think about "utf-8" vs "UTF-8" vs "UTF8" vs "utf8" as I type code. I would like to make my code less prone to typos. I am sure that some standard library has declatred "utf-8" as a const / readonly string. How can I find it? Also, what about "1.0"? I am assuming that major XML versions have been enumerated somewhere as well. Thanks!

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  • iPhone write to file (alternative directory)

    - by strider2k
    New to iPhone 3.2, Apple introduced File-Sharing support. Details can be found at https://developer.apple.com/iphone/library/releasenotes/General/WhatsNewIniPhoneOS/Articles/iPhoneOS3_2.html#//apple_ref/doc/uid/TP40009337-SW1 . Now, most examples floating around in the web demonstrates writing to the documents directory. What if I want to write files from my app but I don't want the user to be able to see it via iTunes? I'm looking at the Files and Networking section of the iPhone OS Programming Guide and I'm unsure what would be a good alternative to the documents directory for writing files to hide from the user and not be rejected by Apple's review team.

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  • Use stringWithFormat: as a file path in cocoa

    - by Cam
    Hello, I'm having a problem with a cocoa application that takes the value of a text field, and writes it to a file. The file path is made using stringWithFormat: to combine 2 strings. For some reason it will not create the file and the console says nothing. Here is my code: //Get the values of the text field NSString *fileName = [fileNameTextField stringValue]; NSString *username = [usernameTextField stringValue]; //Use stringWithFormat: to create the file path NSString *filePath = [NSString stringWithFormat:@"~/Library/Application Support/Test/%@.txt", fileName]; //Write the username to filePath [username writeToFile:filePath atomically:YES]; Thanks for any help

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  • How to implement square root and exponentiation on arbitrary length numbers?

    - by tomp
    I'm working on new data type for arbitrary length numbers (only non-negative integers) and I got stuck at implementing square root and exponentiation functions (only for natural exponents). Please help. I store the arbitrary length number as a string, so all operations are made char by char. Please don't include advices to use different (existing) library or other way to store the number than string. It's meant to be a programming exercise, not a real-world application, so optimization and performance are not so necessary. If you include code in your answer, I would prefer it to be in either pseudo-code or in C++. The important thing is the algorithm, not the implementation itself. Thanks for the help.

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  • business object and codelist

    - by feiroox
    Hi How to design a business object? I have a library which returns me an Object which have ten lists of other different objects. I need to store it into database all. List of objects are often like: class Item { private int id; private String name; private double point; } But the name is often the same. Like basic title of the product or code. Containing from 3 characters up to 70characters. Should I make conversion for every Object to: (or something similar) class ConvertedItem { private int id; private int code; private double point; } And have a separated table of codes ( I guess around 60). Or do not bother with duplicated stuff? It's not mission critical app. What would you do in my case? thanks in advance

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  • Edit PDF files dynamically from Flash or Flex

    - by TandemAdam
    I am planning to do a CD-ROM in either Flash or Flex, possibly using the Adobe AIR runtime. This CD interactive will have a bunch of forms on it for the user to fill out. After they fill in a form, they will have the option of saving or printing a PDF that is based on there information. I am trying to find a way of editing the content of the PDF in Flash, so when the user fills out the form, the application will fill in the PDF with there details from the form fields. Is this is possible? It would be great if there was some way of having template PDFs (either on the CD as there own files, or in a Flash library), then flash could come along and fill in the specific fields inside the PDF. Can Adobe AIR help me in any way here?

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  • Nested CheckBox in Java

    - by Shailesh Ahuja
    I want to create a nested checkbox list. If the user checks the main item, all the sub-items under and get checked. If the user checks some of the sub-items, then a blue square appears inside the main items checkbox. It should look something like this. How do I do that in Java 1.6? Can I use swing or any external library? I would like to choose the easiest and the fastest way to achieve this? My aim is to create only 1 level of nesting.

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  • HTTPS and HTTParty - Timeout and EOF

    - by ferparra
    Hi all, I'm trying to post something to an HTTPS resource, but it seems it doesn't work. My code look something like this: require 'httparty' class MyClass include HTTParty base_uri "https://mydomain.com:8085/search" basic_auth 'admin', 'changeme' format :xml def mymethod self.class.post('/job', :query => {:search => "*"}) end end As you can see, I've defined an URI with 'https' included, so it should set the use_ssl property for the Net::HTTPS library automatically. For some reason, Net::HTTP is requested, and I never get in touch with the server, so I end up with an EOF. Any clues?

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