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  • Metaphor for task synchronization [closed]

    - by nkint
    I'm looking for a metaphor. A friend of mine taught me to use metaphors from nature, everyday life, math, and use them to design my projects. They can help in creating a better design or better understanding or the problem, and they are cool. Now I'm working on a project with hardware and micro-controllers in C. For convenience, I have decided to use multiple micro-controllers as co-processor units for real-time (the slaves) and a master. This has saved me a lot of headache: I can code the main logic in the master without paying too much attention to super optimizing everything; I don't care if I need some blocking-call; I don't worry about serial communication with the computer. I just send messages to the slaves and they are super fast super in real time. I like my design and it seems to work well. So here are the important concepts that I'm trying capture in the metaphor: hierarchy of processing Not using one big brain but rather several small, distributed brain units using distributed power or resources I'm looking for a good metaphor for this concept of having one unit synchronize the work of all the others. Preferably, the metaphor would come from nature, biology, or zoology.

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  • Is there an alternative to HTML Web Sockets, now that Firefox 4 has disabled them?

    - by Pino
    I've been checking out some of the latest multiplayer engines in HTML all supporting multi-user games (Very nice) - I believe all these engines use Web Sockets for communication. That’s why we’ve decided to disable support for WebSocket in Firefox 4, starting with beta 8 due to a protocol-level security issue. Beta 7 of Firefox has support for the -76 version of the protocol, the same version that’s included with Chrome and Safari. Beta 8 of Firefox 4 will remove that support. Anne van Kesteren of Opera also announced that Opera are dropping Websocket support. We are confident that other browser developers will follow. Source: Websockets Disabled in FireFox 4 I've just come accross the above, so no sockets in Firefox 4 or Opera.... thats big. Is anyone aware of an alternate or is it Chrome or do we need to just sit and wait for the next release of the major browsers. More info : Rocket Engine appears to work with all browsers including IE8 (http://rocketpack.fi/engine/) what will it be using as a method of communication?

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  • How to motivate visitors to comment

    - by Michal
    At first I must apologize, because I am not sure if this question is valid for webmasters topic. I deal with the problem as being webmaster, however, i think this question is more related with marketing. Nevertheless, I was searching for marketing stack-overflow at meta stack-overflow and did not find such page. Background Four days ago, I launched a portal with database of barber salons at which people can find a salon through various criterions, see its photos, details, and also put a comment with their own opinion. The development took me half a year and it took me other 2 months to fill the database with information about barbers (I've also hired another three people to this job). I have not a big problem with getting people to my portal, I pay for PPC, comment on barber discussions etc.. In past four days I've reached a satisfactory number of visitors. Problem I deal with fact that everyone wants to search and read comments, but no one is willing to put her/his own opinion to barber. So I've tried following (2 days ago): Made comment anonymous, no one has to be afraid of compromise her/his identity with a salon owner I prepared a competition for users in which they can win a cosmetic package if they comment on at least three different salons I payed for PPC campaign on facebook which is telling people about the competition I registered competition on 20 portals for competitions And the result: People are commenting on facebook that the competition is a good idea They are giving likes on facebook But no one put a single comment to a barber salon I am getting little confused about what am I doing wrong. I will be thankful for any advice.

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  • Contract Work - Lessons Learned

    - by samerpaul
    I thought I would write a post of a different nature today, but still relevant to the tech world. I do a lot of contract jobs myself and really enjoy it. It's nice to keep jumping from project to project, and not having to go to an office or keep regular hours, etc. I really enjoy it. I have learned a lot in the past few years of doing it (both from experience and from help given to me from others, and the internet) so I thought I'd share some of that knowledge/experience today.So here's my own personal "lesson's learned" that hopefully will help you if you find yourself doing contract work:Should I take the job?Ok, so this is the first step. Assuming you were given sufficient information about what they want, then you should really think about what you're capable of doing and whether or not you should take this job. Personally, my rule is, if I know it's possible, I'll say yes, even if I don't yet know how to do it. That's because the internet is such a great help, it would be rare to run into an issue that you can't figure out with some help. So if your clients are asking for something that you don't yet know how to program, but you know you can do it on the platform then go for it. How else are you going to learn?Use this rule with some limitation, however. If you're really lacking the expertise or foundation in something, then unless you have tons of time to complete the project, then I wouldn't say yes. For example, I haven't personally done any 3d/openGL programming yet so I wouldn't say yes to a project that extensively uses it. OK, so I want the job, but how much do I charge?This part can be tricky. There is no set formula really, but I have some tips for pricing that will hopefully give you a better idea on how to confidently ask your price and have them accept. Here are some personal guidelinesHow much time do you have to complete the project? If it's shorter than average, then charge more. You can even make a subtle note about this (or not so subtle if they still don't get it.) If it seems too short of a time (i.e. near impossible to complete), be sure to say that. It looks bad to promise a time that you can't keep--and it makes it less likely for them to return to you for work.Your Hourly rate: How long have you been working in that language? Do you have existing projects to back you up? Or previous contacts that can vouch for your work? Are there very few people with your particular skill set? All of these things will lend themselves to setting an hourly rate. I'd also try out a quick google search of what your line of work is, to see what the industry standard is at that point in time.I wouldn't price too low, because you want to make your time worth it. You also want them to feel like they're paying for quality work (assuming you can deliver it :) ). Finally, think about your client. If it's a small business, then don't price it too high if you want the job. If it's an enterprise (like a Fortune company), then don't be afraid to price higher. They have the budget for it.Fixed price: If they want a fixed price project, then you need to think about how many hours it will take you to complete it and multiply it by the hourly rate you set for yourself. Then, honestly, I would add 10-20% on top of that. Why? Because nothing ever works exactly how you want it to. There are lots of times that something "trivial" is way harder than it should be, or something that "should work" doesn't for hours and it eats away at your hourly rate. I can't count the number of times I encountered a logical bug that took away an entire's day work because debuggers don't help in those cases. By adding that padding in, it's still OK to have those days where you don't get as much done as you want. And another useful tip: Depending on your client, and the scope, you most likely want to set that you both sign off on a specification sheet before doing any work, and that any changes will result in a re-evaulation of the price. This is to help protect you from being handed a huge new addition to the project half-way in, without any extra payment.Scope of project: Finally, is it a huge project? Is it really small/fast? This affects how much your client will be willing to pay. If it sounds big, they will be willing to pay more for it. If it seems really small, then you won't be able to get away with a large asking price (as easily).Ok, I priced it, now what?So now that you have the price, you want to make sure it feels justified to your client. I never set a price before I can really think about everything. For example, if you're still in your introduction phase, and they want a price, don't give one! Just comment that you will send them a proposal sheet with all the features outlined, and a price for everything. You don't want to shout out a low number and then deliver something that is way higher. You also don't want to shock them with a big number before they feel like they are getting a great product.Make up a proposal document in a word editor. Personally, I leave the price till the very end. Why? Because by the time they reach the end, you've already discussed all the great features you plan to implement, and how it's the best product they'll ever use, etc etc...so your price comes off as a steal! If you hit them up front with a price, they will read through the document with a negative bias. Think about those commercials on TV. They always go on about their product, then at the end, ask "What would you pay for something like this? $100? $50? How about $20!!". This is not by accident.Scenario: I finished the job way earlier than expectedYou have two options then. You can either polish the hell out of the application, and even throw in a few bonus features (assuming they are in-line with the customer's needs) or you can sit and wait on it until you near your deadline. Why don't you want to turn it in too early? Because you should treat that extra time as a surplus. If you said it is going to take you 3 weeks, and it took you only 1, you have a surplus of 2 weeks. I personally don't want to let them know that I can do a 3 week project in 1 week. Why not? Because that may not always be the case! I may later have a 3 week project that takes all 3 weeks, but if I set a precedent of delivering super early, then the pressure is on for that longer project. It also makes it harder to quote longer times if you keep delivering too early.Feel free to deliver early, but again, don't do it too early. They may also wonder why they paid you for 3 weeks of work if you're done in 1. They may further wonder if the product sucks, or what is wrong with it, if it's done so early, etc.I would just polish the application. Everyone loves polish in their applications. The smallest details are what make an application go from "functional" to "fantastic". And since you are still delivering on time, then they are still going to be very happy with you.Scenario: It's taking way too long to finish this, and the deadline is nearing/here!So this is not a fun scenario to be in, but it'll happen. Sometimes the scope of the project gets out of hand. The best policy here is OPENNESS/HONESTY. Tell them that the project is taking longer than expected, and give a reasonable time for when you think you'll have it done. I typically explain it in a way that makes it sound like it isn't something that I did wrong, but it's just something about the nature of the project. This really goes for any scenario, to be honest. Just continue to stay open and communicative about your progress. This doesn't mean that you should email them every five minutes (unless they want you to), but it does mean that maybe every few days or once a week, give them an update on where you're at, and what's next. They'll be happy to know they are paying for progress, and it'll make it easier to ask for an extension when something goes wrong, because they know that you've been working on it all along.Final tips and thoughts:In general, contract work is really fun and rewarding. It's nice to learn new things all the time, as mandated by the project ,and to challenge yourself to do things you may not have done before. The key is to build a great relationship with your clients for future work, and for recommendations. I am always very honest with them and I never promise something I can't deliver. Again, under promise, over deliver!I hope this has proved helpful!Cheers,samerpaul

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  • Slides, Materials, and Pictures from SharePoint Saturday Virginia Beach 2011

    - by Brian Jackett
    This past weekend I presented “Managing SharePoint 2010 Farms with PowerShell” and “SharePoint 2010 and Integrating Line of Business Applications” SharePoint Saturday Virginia Beach.  A big thanks to everyone who attended my sessions.  I had a great time presenting, getting to meet new folks, and exploring a little bit of the local life.  Below are slides, materials, and pictures from the event.  Let me know if you have any comments, questions, or feedback.  Thanks. Slides and Materials     Managing SharePoint 2010 Farms with PowerShell     SharePoint 2010 and Integrating Line of Business Applications Photos Pictures on Facebook     Click Here Pictures on Windows Live (higher res) SharePoint Saturday Virginia Beach Jan 2011 VIEW SLIDE SHOW DOWNLOAD ALL   Side Note: SavePSToSP CodePlex Project     During my “Managing SharePoint 2010 Farms with PowerShell” I made mention of a CodePlex project I am working on called SavePSToSP.  Click here for the link to that project.  I have been pushing out updates roughly once a month or more.  If you have any feedback or find it helpful feel free to let me know.         -Frog Out

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  • OOW content for Pattern Matching....

    - by KLaker
    If you missed my sessions at OpenWorld then don't worry - all the content we used for pattern matching (presentation and hands-on lab) is now available for download. My presentation "SQL: The Best Development Language for Big Data?" is available for download from the OOW Content Catalog, see here: https://oracleus.activeevents.com/2013/connect/sessionDetail.ww?SESSION_ID=9101 For the hands-on lab ("Pattern Matching at the Speed of Thought with Oracle Database 12c") we used the Oracle-By-Example content. The OOW hands-on lab uses Oracle Database 12c Release 1 (12.1) and uses the MATCH_RECOGNIZE clause to perform some basic pattern matching examples in SQL. This lab is broken down into four main steps: Logically partition and order the data that is used in the MATCH_RECOGNIZE clause with its PARTITION BY and ORDER BY clauses. Define patterns of rows to seek using the PATTERN clause of the MATCH_RECOGNIZE clause. These patterns use regular expressions syntax, a powerful and expressive feature, applied to the pattern variables you define. Specify the logical conditions required to map a row to a row pattern variable in the DEFINE clause. Define measures, which are expressions usable in the MEASURES clause of the SQL query. You can download the setup files to build the ticker schema and the student notes from the Oracle Learning Library. The direct link to the example on using pattern matching is here: http://apex.oracle.com/pls/apex/f?p=44785:24:0::NO:24:P24_CONTENT_ID,P24_PREV_PAGE:6781,2.

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  • JUnit Testing in Multithread Application

    - by e2bady
    This is a problem me and my team faces in almost all of the projects. Testing certain parts of the application with JUnit is not easy and you need to start early and to stick to it, but that's not the question I'm asking. The actual problem is that with n-Threads, locking, possible exceptions within the threads and shared objects the task of testing is not as simple as testing the class, but testing them under endless possible situations within threading. To be more precise, let me tell you about the design of one of our applications: When a user makes a request several threads are started that each analyse a part of the data to complete the analysis, these threads run a certain time depending on the size of the chunk of data (which are endless and of uncertain quality) to analyse, or they may fail if the data was insufficient/lacking quality. After each completed its analysis they call upon a handler which decides after each thread terminates if the collected analysis-data is sufficient to deliver an answer to the request. All of these analysers share certain parts of the applications (some parts because the instances are very big and only a certain number can be loaded into memory and those instances are reusable, some parts because they have a standing connection, where connecting takes time, ex.gr. sql connections) so locking is very common (done with reentrant-locks). While the applications runs very efficient and fast, it's not very easy to test it under real-world conditions. What we do right now is test each class and it's predefined conditions, but there are no automated tests for interlocking and synchronization, which in my opionion is not very good for quality insurances. Given this example how would you handle testing the threading, interlocking and synchronization?

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  • How do I target a specific driver for libata kernel parameter modding?

    - by DanielSmedegaardBuus
    Sorry for the cryptic title. Not sure how to phrase it. This is it in a nutshell: I'm running a 22-disk setup, 19 of those in a ZFS array, 15 of those backed by three port multipliers attached to SATA controllers driven by the sata_sil24 module. When running full speed (SATA2, i.e. 3 Gbps), the operation is pretty quirky (simple read errors will throw an entire PMP into spasms for a long time, sometimes with pretty awful results). Booting with kernel parameter libata.force=1.5G to force SATA controllers into "legacy" speeds completely fixes all issues with the PMPs. Thing is, my ZFS pool is backed by a fast cache SSD on my ICH10R controller. Another SSD on this same controller holds the system. Doing libata.force=1.5G immediately shaves about 100 MB/s off the transfer rate of my SSDs. For the root drive, that's not such a big deal, but for the ZFS cache SSD, it is. It effectively makes the entire zpool slower for sustained transfers than it would've been without the cache drive. Random access and fs tree lookups, of course still benifit. I'm hoping, though, that there's some way to pass the .force=1.5G parameter on to just the three SATA controllers being backed by the sata_sil24 module. But listing the module options for this, no such option exists. Is this possible? And if so, how? Thanks :)

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  • Podcast Show Notes: The Fusion Middleware A-Team and the Chronicles of Architecture

    - by Bob Rhubart
    If you pay any attention at all to the Oracle blogosphere you’ve probably seen one of several blogs published by members of a group known as the Oracle Fusion Middleware A-Team. A new blog, The Oracle A-Team Chronicles, was recently launched that combines all of those separate A-Team blogs in one. In this program you’ll meet some of the people behind the A-team and the creation of that new blog. The Conversation Listen to Part 1: Background on the A-Team - When was it formed? What is it’s mission? 54) What are some of the most common challenges A-Team architects encounter in the field? Listen to Part 2 (July 3): The panel discusses the trends - big data, mobile, social, etc - that are having the biggest impact in the field. Listen to Part 3 (July 10): The panelists discuss the analysts, journalists, and other resources they rely on to stay ahead of the curve as the technology evolves, and reveal the last article or blog post they shared with other A-team members. The Panelists Jennifer Briscoe: Senior Director, Oracle Fusion Middleware A-Team Clifford Musante: Lead Architect, Application Integration Architecture A-Team, webmaster of the A-Team Chronicles Mikael Ottosson: Vice President, Oracle Fusion Apps and Fusion Middleware A-Team and Cloud Applications Group Pardha Reddy: Senior director of Oracle Identity Management and a member of the Oracle Fusion Middleware A-team Coming Soon Data Warehousing and Oracle Data Integrator: Guest producer and Oracle ACE Director Gurcan Orhan selected the topic and panelists for this program, which also features Uli Bethke, Michael Rainey, and Oracle ACE Cameron Lackpour. Java and Oracle ADF Mobile: An impromptu roundtable discussion featuring QCon New York 2013 session speakers Doug Clarke, Frederic Desbiens, Stephen Chin, and Reza Rahman. Stay tuned:

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  • What is the best way to track / record the current programming project you work on? [duplicate]

    - by user2424160
    This question already has an answer here: Methodology for Documenting Existing Code Base 6 answers When do you start documenting the code? 13 answers Where should a programmer explain the extended logic behind the code? 5 answers I have been in this problem for long time and I want to know how it's done in real / big companies project? Suppose I have the project to build a website. Now I divide the project into sub tasks and do it. But you know that suppose I have task1 in hand like export the page to pdf. Now I spend 3 days to do that , came across various problems, many Stack Overflow questions and in the end I solve it. Now 4 months after someone told me that there is some error in the code. Now by that I completely forgot about (60%) of how I did it and why I do this way. I document the code but I can't write the whole story of that in the code. Then I have to spend much time on code to find what was the problem so that I added this line etc. I want to know that is there any way that i can log steps in completing the project. So that I can see how I end up with code, what errors I got, what questions I asked on SO and etc. How people do it in real time? Which software to use? I know in our project management software called JIRA we have tasks but that does not cover what steps I took to solve that tasks. What is the best way so that when I look back at my 2 year old project, I know how I solve particular task?

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  • https:// search results appearing on Google for purely http:// site

    - by hydrurga
    I started weeding through my site's search results from Google today, using a site: search, to determine if there are any links that cause 404s and thus need redirecting. To my amazement I noticed numerous https:// results relating to various pages. My site doesn't have a SSL certificate, doesn't serve such pages, doesn't internally link to https:// pages, doesn't include any such files in its sitemap.xml and, for all of these, never has. I decided to do a Google search for https://<my site> and found one site that incorrectly refers to the root of my site with a https:// prefix - I will try to contact them to get them to correct this. I'm not sure however how Googlebot managed to index the non-root files as https://. I can't find any external links to them and surely, without certification, Googlebot should have stalled at the first request? I've just added the following lines to the site's .htaccess (although the surfer still has to navigate through the browser's "This site is a security risk. Abandon hope all ye who enter here!" message(s) first to get there): RewriteEngine On RewriteCond %{HTTPS} on RewriteRule ^(.*)$ http://www.<my site>.org/$1 [R=301,L] replacing <my site> with my domain name. My big question is this though - I would like to use the Google Webmaster Tools Remove URLs feature to remove the https:// pages from the index. Can I be guaranteed that this will only remove the https:// versions of each relevant page and not the valid http:// versions? My thanks to anyone who can help me out with this particular question and the issue in general.

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  • How can you Add Value to your Mobile Apps?

    - by Carlos Chang
    Author: Craig Mikus, Sr. Director, Enterprise Mobile Solutions Seems like every customer is either building or planning to build mobile apps, especially customer facing apps. Why? Inevitably, all companies want to improve the customer experience through more quality interactions that drive customer satisfaction, customer loyalty, new revenue streams, and even improve the way they service their customers. What better way than mobile apps? Right? But how can customers add more value to these mobile apps to drive more business benefit? Look closely, the answer just might be right in front of you. Still need another clue? What’s the first 4 letters of mobile – mo-bi? Or pronounced differently, More BI. That’s right – add more business intelligence to your overall mobile strategy. In today’s customer centric world where customer interactions and personalization are critical, it’s important to leverage a BI strategy that complements and feeds into your mobile strategy. For example, I was recently talking to a customer that was implementing a data warehouse project focused customer analytics. Their goal was to understand who are their best customers and why, develop customer profiles, identify customer trends & patterns, identify cross sell opportunities, and much more. The company then wanted to feed this information to marketing for targeted campaigns and programs. As we continued to talk, I asked my contact if they had plans to feed this information into their customer facing mobile apps to personalize the apps, target their interactions, and hopefully drive customer loyalty and new revenue streams? Two minutes later, my contact was calling his mobile development teams. So my advice to everyone, as you establish your enterprise mobile strategy and goals, remember that “mo-BI” is a critical component to add value to your mobile apps! So make sure you have “mo BI” in your mobile strategy. As I come to think of it, did you ever notice that Big Data also starts with BI?

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  • MSDN Live 2010 &ndash; Delivered : 24 sessions (4 x 6) on Visual Studio and Team Foundation Server

    - by terje
    We (Mikael Nitell and me) got a whole track on the Norwegian MSDN Live tour this year.  We did these as a pair, and covered 4 cities over 4 days, 6 sessions per day, taking 8 hours to come through it.  The Islandic volcano made the travels a bit rough, but we managed 6 flights out of 8. The first one had to go by van instead, 7-8 hour drive each way together with other MSDN Live presenters – a memorable tour! Oslo was the absolute top point.  We had to change hall to a bigger one. People were crowding, and even the big hall was packed!  The presentations were mostly based on demos, but we had a few slides as well.  They have been uploaded to my SkyDrive.  Info to aliens – some of the text may be Norwegian. The sessions were as follows: Overview of news in Visual Studio and Team Foundation server 2010 Ensuring Quality with VS/TFS 2010 Releasing products with VS/TFS 2010 No More No Repro with VS/TFS 2010 Performance Testing and Parallel Programming with VS/TFS 2010 Migrating to VS/TFS 2010 Tips, tricks, news and some best practices with VS/TFS 2010   In the coming days, I will post up examples from the demos too, with explanations of how they are intended to work. These entries will also contain stuff we had to remove from the actual presentations due to the time constraints. We managed to create recordings of two of the sessions, which will be uploaded to Channel 9 by Microsoft, afaik.   I will update this blog with information about exact locations when that is done. Also note we’re (read:Osiris Data AS) running both Upgrade and Deep Dive courses  on VS/TFS 2010 now in May.  Please look here for more info. If you want to be informed, follow me on Twitter.  All blog entries will be announced on twitter.

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  • Turn-based Client-Server Card Game - Unicast (TCP) or Multicast (UDP)

    - by LDM91
    I am currently planning to make a card game project where the clients will communicate with the server in a turn-based and synchronous manner using messages sent over sockets. The problem I have is how to handle the following scenario: (Client takes it turn and sends its action to server) Client sends a message telling the server its move for the turn (e.g. plays the card 5 from its hand which needs to placed onto the table) Server receives messages and updates game state (server will hold all game state). Server iterates through a list of connected clients and sends a message to tell of them change in state Clients all refresh to display the state This is all based on using TCP, and looking at it now it seems a bit like the Observer pattern. The reason this seems to be an issue to me is this message doesn't seem to be point-to-point like the others as I want to send it to all the clients, and doesn't seem very efficient sending the same message in that way. I was thinking about using multicasting with UDP as then I could send the message to all the clients, however wouldn't this mean that the clients would in theory be able to message each other? There is of course the synchronous aspect as well, though this could be put on top of the UDP I guess. Basically, I would like to know what would be good practice as this project is really all about learning, and even though it won't be big enough to encounter performance issues from this I would like to consider them anyway. However, please note I am not interested in using message oriented middleware as a solution (I have experience with using MOM and I'm interested in considering other options excluding MOM if TCP sockets is a bad idea!).

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  • Java.net Reborn

    - by Bob Rhubart
    Java.net, the home of  Java community projects, has been re-launched with a new look and new tools for developers.  The move from CollabNet to the Kenai infrastructure offers more flexibility for developers who want to host or contribute to community projects.  Instead of the large, fixed infrastructure per project (for example, several mailing lists per project), Kenai's ala carte features allow users to take only what they need. "We will continue to have the great mix of blogs, forums, and editorial content as well as new tools on the project side, including Mercurial, Git, and JIRA for developers," Java.net Community Manager Sonya Barry explains.  The migration was huge effort. Over 1400 projects were migrated (and some 30 projects are left to go). A large part of the migration was a big cleanup of abandoned projects. With the high abandonment rate of open source projects, the was a lot to remove. The new java.net site is smaller, faster and now the percentage of good, current content is much higher. Check it out at http://home.java.net/   Technorati Tags: java,java.net,oracle,oracle technology network del.icio.us Tags: java,java.net,oracle,oracle technology network

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  • How to share code as open source?

    - by Ethel Evans
    I have a little program that I wrote for a local group to handle a somewhat complicated scheduling issue for scheduling multiple meetings in multiple locations that change weekly according to certain criteria. It's a niche need, but I wouldn't be surprised if there are other groups that could use software like this. In fact, we've had requests from others for directions on starting a group like this, and if their groups get as big, they might also want special software to help with scheduling. I plan to continue developing the program and eventually make it an online web app, but a very simple alpha version is completed as a console app. I'd like to make it available as open source, but I have no idea what kind of process I should go through first. Right now, all I have is Java code, not even unit-tested thoroughly. I haven't shown the code to anyone else. There is no documentation. I don't know where I would put the code so others could access it. I don't know anything about licensing it. I don't know what kind of support people will expect from me if I release it as open source. I have no idea what else I should worry about. Can someone outline for me (or post an article(s) that outlines) the process of taking open source software from "coded" to "completed / available"? I really don't want to embarrass myself by doing things weirdly.

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  • How to properly structure a project in winform?

    - by user850010
    A while ago I started to create a winform application and at that time it was small and I did not give any thought of how to structure the project. Since then I added additional features as I needed and the project folder is getting bigger and bigger and now I think it is time to structure the project in some way, but I am not sure what is the proper way, so I have few questions. How to properly restructure the project folder? At the moment I am thinking of something like this: Create Folder for Forms Create Folder for Utility classes Create Folder for Classes that contain only data What is the naming convention when adding classes? Should I also rename classes so that their functionality can be identified by just looking at their name? For example renaming all forms classes, so that their name ends with Form. Or is this not necessary if special folders for them are created? What to do, so that not all the code for main form ends up in Form1.cs Another problem I encountered is that as the main form is getting more massive with each feature I add, the code file (Form1.cs) is getting really big. I have for example a TabControl and each tab has bunch of controls and all the code ended up in Form1.cs. How to avoid this? Also, Do you know any articles or books that deal with these problems?

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  • Php profiling on production server or other options

    - by absentx
    Alright I need some help here. I am commonly asked to speed up certain sections of some websites that I program for. I have yet to be able to figure out how to use a good php diagnosis/profiling tool. Some things to consider: The sites I am working on are already built, getting a testing server set up locally is just a huge pain..I have to rewrite include paths and just so many things. This is a results oriented deal and spending days to get a site fully working on a testing platform so I can debug one page probably isn't an option. I can write tons of php, but I have no clue how to interact or mess with servers. So every tutorial I read about setting up xdebug or xhprof all seem to involve getting something installed on a production server that I don't have access to or have no clue how to work with. So are there any solutions out there that will show me where my php is slow without having to do all sorts of server stuff that I just don't know how to do? Xhprof seems to be the closest to useable for me but from what I can tell it still has to be installed on a server. If anyone can just point me in the right direction on this I would be very grateful. Maybe getting these things put on the server isn't a big deal...but I have never interacted with server command lines or anything like that. I suppose I should start sometime but I really have no idea where to start. Plus I realize that profiling on a live platform is not the greatest idea either but I feel I am in a tough spot. I have speed issues to solve and setting up a local environment while a great idea, just doesn't seem real practical at the moment.

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  • Good 2D Platformer Physics

    - by Joe Wreschnig
    I have a basic character controller set up for a 2D platformer with Box2D, and I'm starting to tweak it to try to make it feel good. Physics engines have a lot of knobs to tweak, and it's not clear to me, writing with a physics engine for the first time, which ones I should use. Should jumping apply a force for several ticks? An impulse? Directly set velocity? How do I stop the avatar from sticking to walls without taking away all its friction (or do I take away all the friction, but only in the air)? Should I model the character as a capsule? A box with rounded corners? A box with two wheels? Just one big wheel? I feel like someone must have done this before! There seem to be very few resources available on the web that are not "baby's first physics", which all cut off where I'm hoping someone has already solved the issues. Most examples of physics engines for platformers have floaty-feeling controls, or in-air jumps, or easily exploitable behavior when temporary penetration is too high, etc. Some examples of what I mean: A short tap of jump jumps a short distance; a long tap jumps higher. Short skidding when stopping or reversing directions at high velocity. Standing stably on inclines (but maybe sliding down them when ducking). Analog speed when using an analog controller. All the other things that separate good platformers from bad platformers. Dare I suggest, stable moving platforms? I'm not really looking for "hey, do this." Obviously, the right thing to do is dependent on what I want in the game. But I'm hoping someone somewhere has gone through the possibilities and said "well technique A does feature X well, technique B does Y well, but that doesn't work with C", or has some worked examples beyond "if (key == space) character.impulse(0, 1)"

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  • Upgrading specific pieces of KDE 4.x

    - by Blind Fish
    So this is going to be one of those "is this even possible?" questions. I need to upgrade a piece of my KDE from 4.8.5 to 4.9. Specifically, I need to upgrade Gwenview from the 2.85 version in KDE 4.8.5 to 2.9 version in KDE 4.9. It seems trivial but it's actually a fairly big deal for me. I recently upgraded my Ubuntu to 12.04, and that upgraded my Gwenview to 2.8x. The issue is that the Gwenview 2.8 releases accidentally broke a feature that I rely upon very heavily. It's a known bug that was corrected in 2.9. Unfortunately, the only package available in Synaptic is 4.8.5, which contains Gwenview 2.85. To make matters worse I'm not sure that I can simply take my whole KDE to 4.9 as I am running an older Toshiba Satellite with the Intel 945GMA chipset that I was shocked managed to hold up under the weight of 12.04 as it is. Well, actually it didn't. I had to install Cairo Dock as Unity 2D was hopeless with this chipset. But anyway, I desperately need to get to Gwenview 2.9 without the potential system-wide implosion of upgrading KDE to 4.9. Possible?

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  • Ubuntu boot problem/unity failure

    - by Kenny
    So here I am sitting in a big pile of muck...over the last 2 days things have just been going from bad to worse with version of Ubuntu 12.10. So 2 days ago I was fiddling around with kismet and airmon-ng. I had added a bunch of libraries, I remember adding GTK+, Glib, Pango, etc. After restarting the other day my desktop opened fine but my background was changed to the default and none of my files on the desktop were visible and the top bar and side bar were not visible or functioning. The window managers were still working. I then tried reinstalling my nvidia drivers to see if that would change anything, it did not. Then after doing some searching online I found something that suggested I try deleting the file "libgtk-3.so.0". I deleted this and tried to restart the computer. Upon restart, I was greeted by a black screen with some writing saying something about -starting clamAV [OK] -problem with Apache Server could not verify correct...something... - checking battery state [ok]. After it gets to battery state it just stops and sits there indefinitely. So to sum, I cannot login to ubuntu because it just sits at this black screeen. If anyone has any idea as to what is going on and how to fix it please let me know. Thanks!

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  • The Ideal Platform for Oracle Database 12c In-Memory and in-memory Applications

    - by Michael Palmeter (Engineered Systems Product Management)
    Oracle SuperCluster, Oracle's SPARC M6 and T5 servers, Oracle Solaris, Oracle VM Server for SPARC, and Oracle Enterprise Manager have been co-engineered with Oracle Database and Oracle applications to provide maximum In-Memory performance, scalability, efficiency and reliability for the most critical and demanding enterprise deployments. The In-Memory option for the Oracle Database 12c, which has just been released, has been specifically optimized for SPARC servers running Oracle Solaris. The unique combination of Oracle's M6 32 Terabytes Big Memory Machine and Oracle Database 12c In-Memory demonstrates 2X increase in OLTP performance and 100X increase in analytics response times, allowing complex analysis of incredibly large data sets at the speed of thought. Numerous unique enhancements, including the large cache on the SPARC M6 processor, massive 32 TB of memory, uniform memory access architecture, Oracle Solaris high-performance kernel, and Oracle Database SGA optimization, result in orders of magnitude better transaction processing speeds across a range of in-memory workloads. Oracle Database 12c In-Memory The Power of Oracle SuperCluster and In-Memory Applications (Video, 3:13) Oracle’s In-Memory applications Oracle E-Business Suite In-Memory Cost Management on the Oracle SuperCluster M6-32 (PDF) Oracle JD Edwards Enterprise One In-Memory Applications on Oracle SuperCluster M6-32 (PDF) Oracle JD Edwards Enterprise One In-Memory Sales Advisor on the SuperCluster M6-32 (PDF) Oracle JD Edwards Enterprise One Project Portfolio Management on the SuperCluster M6-32 (PDF)

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  • Transitioning from a mechanical engineer to software developer. What path to take?

    - by Patrick
    Hi all, I am 24 years old and have a BS in mechanical engineering from Mizzou. I have been working as a mechanical engineer in a big corporation for about 2 years since graduation. In this time, I have decided that I'm just not that interested in mechanical engineering topics, and I'm much more excited about web technology, website design, etc. I do a very small amount of freelance web design just to get experience, but I have no formal training yet. Ultimately I could see myself being very excited about working for a small startup in web technology, or creating and selling my own programs in more of an entrepreneurial role. What path do you recommend for transitioning into this field? Go back to school and get a BS in CS? MS in CS? Tech school for classes? Self study? I'm feeling overwhelmed by the options available, but the one thing I know for sure is that I'm excited to make a change. Thanks!

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  • Strategies for managUse of types in Python

    - by dave
    I'm a long time programmer in C# but have been coding in Python for the past year. One of the big hurdles for me was the lack of type definitions for variables and parameters. Whereas I totally get the idea of duck typing, I do find it frustrating that I can't tell the type of a variable just by looking at it. This is an issue when you look at someone else's code where they've used ambiguous names for method parameters (see edit below). In a few cases, I've added asserts to ensure parameters comply with an expected type but this goes against the whole duck typing thing. On some methods, I'll document the expected type of parameters (eg: list of user objects), but even this seems to go against the idea of just using an object and let the runtime deal with exceptions. What strategies do you use to avoid typing problems in Python? Edit: Example of the parameter naming issues: If our code base we have a task object (ORM object) and a task_obj object (higher level object that embeds a task). Needless to say, many methods accept a parameter named 'task'. The method might expect a task or a task_obj or some other construct such as a dictionary of task properties - it is not clear. It is them up to be to look at how that parameter is used in order to work out what the method expects.

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  • Expanding existing DVCS Wiki

    - by A Lion
    A portion of my job is to maintain technical documentation for a rapidly expanding manufacturing company. Because it is only a portion of my job and the company's product line is expanding so quickly, I can't stay on top of the documentation. As a result, I've been yearning for an information management system with a handful of specific features. I've found many products that have a subset, but none that have all the features I'm looking for. I'm at the point of picking an existing product and expanding it to cover my desired feature set, however, this will be a pet project and I will be learning the underlying language as I go. So, the main question is which existing product will be the easiest to expand to cover the full feature set and has a relatively easy to learn language? Alternatively, have I missed another existing program that will cover the feature set or should be in my list of "close, but not quite there"? Feature Set web interface based on a distributed version control system (e.g., git) easy to edit by logged in novices (e.g. wiki, multimarkdown) outputs in more traditional formats (e.g., doc, odt, pdf) edits held in queue until editor/engineer/manager approves them (e.g., MS Word editing) [this is the really big elephant in list - suggestions on where to start appreciated] edits held in queue specifically for engineer approval [extra limb of the elephant in the list] well-supported in the open source community Closest, but not quite there ikiwiki - http://ikiwiki.info (php) lots of awesome functionality and extensions, including easy to edit and based on DVCS lacks a review/forward for review queue appears to be well-supported within the OSS community gitit - http://gitit.net/ (haskell) easy to edit and based on DVCS lots of outputs in traditional formats a great web-based gui diff interface lacks a review/forward for review queue appears to be primarily maintained by one individual

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