Search Results

Search found 28818 results on 1153 pages for 'main loop'.

Page 638/1153 | < Previous Page | 634 635 636 637 638 639 640 641 642 643 644 645  | Next Page >

• OOP Design: relationship between entity classes

  - by beginner_

  I have at first sight a simple issue but can't wrap my head around on how to solve. I have an abstract class Compound. A Compound is made up of Structures. Then there is also a Container which holds 1 Compound. A "special" implementation of Compound has Versions. For that type of Compound I want the Container to hold the Versionof the Compound and not the Compound itself. You could say "just create an interface Containable" and a Container holds 1 Containable. However that won't work. The reason is I'm creating a framework and the main part of that framework is to simplify storing and especially searching for special data type held by Structure objects. Hence to search for Containers which contain a Compound made up of a specific Structure requires that the "Path" from Containerto Structure is well defined (Number of relationships or joins). I hope this was understandable. My question is how to design the classes and relationships to be able to do what I outlined.

  Read the article

• transparently set up Windows 7 as remote workstation

  - by Áxel

  Maybe is a very basic question, but I can't find the exact terms to Google for it and find the concrete answer to my doubt. Suppose we have several PCs in which individual employees work. One of them has an extremely powerful CPU, and it's very useful to use that computer to perform heavy computations, but go there and set up your task means its user has to stop working for a while. Is it possible to allow a secondary user account to remotly log in, for example via Remote Desktop, and work with a full user environment, while the main user keeps working under his user session? I've used remote desktop many times in the past, but it always blocked current user session, or even terminated it. Lots of thanks in advance guys.

  Read the article

• Can't install on a Thinkpad W700ds

  - by Habstinat

  I want to install Ubuntu on my computer. I don't know much about Linux, but I know my way around a terminal and whatnot. My computer, a ThinkPad W700ds, refuses to read from my CD when booting. The md5sum is correct and the same CD boots fine from another computer. When I try to install from a USB, I can get the main screen, but when I select any of the options from there my screen turns black for more than 3 hours until I have to turn it off. Is there anything I can do about this? I want to have a true partition, don't want a Wubi'd install. It's a 10.10 x64 image, but my computer is 64 bit (running Windows 7 x64 right now) and the exact same CD is bootable on other computers. I've been on #ubuntu IRC for days trying to work this out but nobody knew, so I figured I would get more responses by posting to here. UPDATE: Thanks Jorge Castro. Both the alternate and desktop installers seem to not work at all with the CD. On a USB, the alternate installer lets me start installing, but in the middle of installation I get this message. The people on #ubuntu told me to just exit installation at that point, so I did.

  Read the article

• What do I do for dependencies installing wine1.7 on 14.04

  - by user285207

  user@chrubuntu:~$ sudo apt-get install wine1.7 [sudo] password for user: user Sorry, try again. [sudo] password for user: Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: wine1.7 : Depends: wine1.7-i386 (= 1:1.7.19-0ubuntu2~trusty2) but it is not installable Recommends: gnome-exe-thumbnailer but it is not going to be installed or kde-runtime but it is not going to be installed Recommends: ttf-mscorefonts-installer but it is not going to be installed Recommends: fonts-horai-umefont but it is not going to be installed Recommends: fonts-unfonts-core but it is not going to be installed Recommends: ttf-wqy-microhei Recommends: winetricks but it is not going to be installed E: Unable to correct problems, you have held broken packages. user@chrubuntu:~$ Trying to install wine1.7 on Ubuntu 14.04 64 bit, and i'm not sure what this means, help is greatly appreciated. I already ran sudo apt-get update and get this: Reading package lists... Done W: Duplicate sources.list entry http://dl.google.com/linux/chrome/deb/ stable/main amd64 Packages (/var/lib/apt/lists/dl.google.com_linux_chrome_deb_dists_stable_main_binary-amd64_Packages) W: You may want to run apt-get update to correct these problems So I run apt-get update and: E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied) E: Unable to lock directory /var/lib/apt/lists/ E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied) E: Unable to lock the administration directory (/var/lib/dpkg/), are you root? This is all very stressing because I have been trying to get Wine for the past week and had to reinstall and IT STILL WON'T WORK.

  Read the article

• What is the best way to store a table in C++

  - by Topo

  I'm programming a decision tree in C++ using a slightly modified version of the C4.5 algorithm. Each node represents an attribute or a column of your data set and it has a children per possible value of the attribute. My problem is how to store the training data set having in mind that I have to use a subset for each node so I need a quick way to only select a subset of rows and columns. The main goal is to do it in the most memory and time efficient possible (in that order of priority). The best way I have thought of is to have an array of arrays (or std::vector), or something like that, and for each node have a list (array, vector, etc) or something with the column,line(probably a tuple) pairs that are valid for that node. I now there should be a better way to do this, any suggestions? UPDATE: What I need is something like this: In the beginning I have this data: Paris 4 5.0 True New York 7 1.3 True Tokio 2 9.1 False Paris 9 6.8 True Tokio 0 8.4 False But for the second node I just need this data: Paris 4 5.0 New York 7 1.3 Paris 9 6.8 And for the third node: Tokio 2 9.1 Tokio 0 8.4 But with a table of millions of records with up to hundreds of columns. What I have in mind is keep all the data in a matrix, and then for each node keep the info of the current columns and rows. Something like this: Paris 4 5.0 True New York 7 1.3 True Tokio 2 9.1 False Paris 9 6.8 True Tokio 0 8.4 False Node 2: columns = [0,1,2] rows = [0,1,3] Node 3: columns = [0,1,2] rows = [2,4] This way on the worst case scenario I just have to waste size_of(int) * (number_of_columns + number_of_rows) * node That is a lot less than having an independent data matrix for each node.

  Read the article

• Hylafax with serial over IP modem

  - by zero_r

  I'm looking into virtualizing a Hylafax server which currently runs on a dedicated hardware running CentOS with a Divalogic card. The main issue obviously is, how to connect the modem to the VM. There are serial over IP devices available at digi.com. Maybe there are others? Regarding digi.com devices, as far as I understood one can install the RealPort software and then have a /dev/ttySx device presented to the Linux server. This device then can be used as serial connection to the modem. Does someone have such a configuration in place? Or does someone have another idea to virtualize a Hylafax server (outbound faxes only). Thank you in advance

  Read the article

• Simple way to get keys/mouse buttons working in Synergy (mac client, pc server)

  - by Damon

  I'm trying to get Synergy working running as client on my Mac with SynergyKM Preferences panel. It's performing generally fine (just some real slow downs when my network is under heavy use, usually from youtube videos). The main thing I want to get working is none of the special buttons on my mouse are working on the client.. just the scroll and middle click.. but I have back/forward buttons I'd like to have working. Also my Windows Comfort Curve Keyboard has some extra keys and I'd like to know how to set those up to perform operations on my Mac client. I could have sworn that home/end weren't working but they seem to be now.. perhaps it's application specific..

  Read the article

• JSR 308 Moves Forward

  - by abuckley

  I am pleased to announce a number of recent milestones for JSR 308, Annotations on Java Types: Adoption of JCP 2.8 Thanks to the agreement of the Expert Group, JSR 308 operates under JCP 2.8 from September 2012. There is a publicly archived mailing list for EG members, and a companion list for anyone who wishes to follow EG traffic by email. There is also a "suggestion box" mailing list where anyone can send feedback to the E.G. directly. Feedback will be discussed on the main EG list. Co-spec lead Prof. Michael Ernst maintains an issue tracker and a document archive. Early-Access Builds of the Reference Implementation Oracle has published binaries for all platforms of JDK 8 with support for type annotations. Builds are generated from OpenJDK's type-annotations/type-annotations forest (notably the langtools repo). The forest is owned by the Type Annotations project. Integration with Enhanced Metadata On the enhanced metadata mailing list, Oracle has proposed support for repeating annotations in the Java language in Java SE 8. For completeness, it must be possible to repeat annotations on types, not only on declarations. The implementation of repeating annotations on declarations is already in the type-annotations/type-annotations forest (and hence in the early-access builds above) and work is underway to extend it to types.

  Read the article

• WD Elements Desktop External - Not recognised on a single computer

  - by Aelexe

  My WD Elements Desktop External is no longer recognised on my main computer. It has worked fine in the past, but now all of a sudden is not detected. It does not prompt when plugged in, nor does it show up in the disc management interface or the device manager. It appears to be aware that it is plugged in however as the light on the external blinks rapidly for a short while after being plugged in. The strangest thing however is that it works fine on other computers, including my family computers and my laptop. I have attempted to troubleshoot the issue by trying various USB devices in multiple ports on each system to see if there is any correlation with the issue, but have come up with nothing that gives me an idea of what is going on. I have also attempted to format the external using my laptop, but that has not helped either. If anyone has had a similar issue, or knows of any potential solutions, please post your advice. Thanks for your time.

  Read the article

• What's wrong with this Open GL ES 2.0. Shader?

  - by Project Dumbo Dev

  I just can't understand this. The code works perfectly on the emulator(Which is supposed to give more problems than phones…), but when I try it on a LG-E610 it doesn't compile the vertex shader. This is my log error(Which contains the shader code as well): EDITED Shader: uniform mat4 u_Matrix; uniform int u_XSpritePos; uniform int u_YSpritePos; uniform float u_XDisplacement; uniform float u_YDisplacement; attribute vec4 a_Position; attribute vec2 a_TextureCoordinates; varying vec2 v_TextureCoordinates; void main(){ v_TextureCoordinates.x= (a_TextureCoordinates.x + u_XSpritePos) * u_XDisplacement; v_TextureCoordinates.y= (a_TextureCoordinates.y + u_YSpritePos) * u_YDisplacement; gl_Position = u_Matrix * a_Position; } Log reports this before loading/compiling shader: 11-05 18:46:25.579: D/memalloc(1649): /dev/pmem: Mapped buffer base:0x51984000 size:5570560 offset:4956160 fd:46 11-05 18:46:25.629: D/memalloc(1649): /dev/pmem: Mapped buffer base:0x5218d000 size:5836800 offset:5570560 fd:49 Maybe it has something to do with that men alloc? The phone is also giving a constant error while plugged: ERROR FBIOGET_ESDCHECKLOOP fail, from msm7627a.gralloc Edited: "InfoLog:" refers to glGetShaderInfoLog, and it's returning nothing. Since I removed the log in a previous edit I will just say i'm looking for feedback on compiling shaders. Solution + More questions: Ok, the problem seems to be that either ints are not working(generally speaking) or that you can't mix floats with ints. That brings to me the question, why on earth glGetShaderInfoLog is returning nothing? Shouldn't it tell me something is wrong on those lines? It surely does when I misspell something. I solved by turning everything into floats, but If someone can add some light into this, It would be appreciated. Thanks.

  Read the article

• How do I set up my home server to go directly to a port other than 80

  - by Kevin

  I'm using dyndns, a lynksis wt54g router, and tomcat 7 with spring to set up a web server. This is my first time to attempt this. I'm sure this is a very common question, but I don't know enough to find the answer after quite a bit searching. Dyndns is successfully forwarding to my ip. The main problem is, the router admin login is coming up when my url is used. I'm hosting my site on port 8080. I have port forwarding set up for port 8080 but my request times out when I attempt to use my url like this www.myurl1234.com:8080. I don't want users to have to type the port anyway. I also tried changing the management port to 82 and hosting on port 80, but I still get the router admin login when I use my url. Where am I going wrong? Can I set it up so that www.myurl1234.com goes straight to port 8080?

  Read the article

• Tool to track bandwidth by domain name?

  - by Grant Limberg

  I'm running an Ubuntu 10.04 server that hosts several domain names. All domains point to the same IP address and use the same network interface. I'm really only concerned with the main domain name such as my-domain1.com and my-domain2.com. It should include subdomains such as www.my-domain1.com with the totals for my-domain1.com. Is there a tool out there that is configurable to track bandwidth usage on a per-domain name basis? Edit: I'm not looking for only web usage. I'm looking for all traffic.

  Read the article

• Windows, Apache and MSSQL Authentication

  - by user1114330

  I have a create database script written in perl. I remember it working just fine another machine. A couple years later using a Vista machine I am trying to use it again and it keeps failing. The main difference is that now I am using Apache instead of IIS. In the script the IUSR account is granted permissions as it needs to write to the database as a part of another program. IIS has been uninstalled on this machine but the IUSR account still exists. The NT AUTHORITY\IUSR is also seen in the logins drop down in MSSQL(2012). The machine is running Vista Home Edition. However when running the script I get errors that say that NT AUTHORITY\IUSR cannot be found. I tried also with COMPUTERNAME\IUSR just for the heck of it and of course it was not found. I also tried with IUSR alone and for some reason the user isn't being "found"? Any ideas?

  Read the article

• How to increase the disk cache of Windows 7

  - by Mark Christiaens

  Under Windows 7 (64 bit), I'm reading through 9000 moderately sized files. In total, there is more than 200 MB of data. Using Java (JDK 1.6.21) I'm iterating over the files. The first 1400 or so go at full speed but then speed drops off to 4ms per file. It turns out that the main cost is incurred simply by opening the files. I'm opening the files using new FileInputStream (and of course closing them in time to avoid file leaks). After some investigating, I see that Windows' disk cache is using only 100 MB or so of RAM although I have 8 GiB available. I've tried increasing the cache size using the CacheSet tool but any values I provide are considered out of range. I've also tried enabling the LargeSystemCache registry key but (after rebooting) the CacheSet tool still indicates I'm using 100 MB of cache (and doesn't increase during the test run). Does anybody have any suggestions to "encourage" Windows 7 to cache my 9000 files?

  Read the article

• Encrypt two drives with Truecrypt with password before boot

  - by Deshroom

  i'm using laptop and PC with single HDD with full disk encryption. I know how works truecrypt on single drive because i use it everyday. My second laptop has 2 HHDs. My question is how to encrypt first 128GB SSD and second 1TB HDD in same way. I have multiple applications installed on second drive so i want to have it accessible during boot in ex. Steam in installed on second drive and it starts with windows. How to do it? can i encrypt two drives in truecrypt and unlock it via password before boot? My main reason is i want to RMA laptop without removing disks or data - my data need to be encrypted. Thank you.

  Read the article

• Set up router to vpn into proxy server

  - by NKimber

  I have a small network with a single LinkSys router connected to broadband in US via Comcast. I have a VPN proxy server account that I can use with a standard Windows connection, allowing me to have a geographic IP fingerprint in Europe, this is useful for a number of purposes. I want to setup a 2nd router that automatically connects via VPN to this proxy service, so any hardware that is connected to router 2 looks as though it is originating network requests in Europe, and any hardware connected to my main router has normal Comcast traffic (all requests are originating from USA). My 2nd router is a LinkSys WRT54G2, I'm having trouble getting this configured. Question, is what I'm trying to do even feasible? Should the WRT54G2 be able to do this with native functionality? Would flashing it with DD-WRT allow me to achieve my objectives?

  Read the article

• share code between check and process methods

  - by undu

  My job is to refactor an old library for GIS vector data processing. The main class encapsulates a collection of building outlines, and offers different methods for checking data consistency. Those checking functions have an optional parameter that allows to perform some process. For instance: std::vector<Point> checkIntersections(int process_mode = 0); This method tests if some building outlines are intersecting, and return the intersection points. But if you pass a non null argument, the method will modify the outlines to remove the intersection. I think it's pretty bad (at call site, a reader not familiar with the code base will assume that a method called checkSomething only performs a check and doesn't modifiy data) and I want to change this. I also want to avoid code duplication as check and process methods are mostly similar. So I was thinking to something like this: // a private worker std::vector<Point> workerIntersections(int process_mode = 0) { // it's the equivalent of the current checkIntersections, it may perform // a process depending on process_mode } // public interfaces for check and process std::vector<Point> checkIntersections() /* const */ { workerIntersections(0); } std::vector<Point> processIntersections(int process_mode /*I have different process modes*/) { workerIntersections(process_mode); } But that forces me to break const correctness as workerIntersections is a non-const method. How can I separate check and process, avoiding code duplication and keeping const-correctness?

  Read the article

• Hello!

  - by barryoreilly

  After many months of deliberating I have finally gotten around to starting this blog! The reason for doing this is the large number of half finished articles lying around on my hard disk, unpublished and unloved. These articles have been of huge benefit to me, and have been written in an attempt to consolidate my own thinking, in order to help me structure my thoughts and ideas as I have tried to digest new ideas and understand abstract theories. It is my hope that by tidying up these articles and publishing them here that I can continue this learning process by getting feedback on the ideas from within the developer community. i have worked with .NET for 8 years now, and have worked with ASP.NET, SQL Server, Windows programming as well as general network administration. Since 2004 my focus has been on integration, web services, and more often than not Biztalk Server. The last two years have seen me focus on SOA and WCF, and the Managed Services Engine, so this is probably where the main focus of the blog will to start with, but there are so many fun things to play with these days that i have no idea where it will end up.....   Barry

  Read the article

• solving network connection problem on xp

  - by doug

  Hi there I feel so stupid, because I have to fix my dad computer(which was mine years ago). So it is an old computer on which I have installed windows xp and the drivers for main-board. The device manager says that I have no more problems with the hardware. That computer has to connect to a router from my room but it doesn't. On ping 192.168.2.1 I get "Request time out"., The other computers are connecting to that router. Only the old computer doesn't connect to the LAN and later to the internet. Also it doesn't get a good IP(from the same class). After running ipconfig command I know that i have an IP with 169.... What can I do? Do you have any tips for me?

  Read the article

• problem in connecting Reliance booadband +

  - by Athira R

  I tried connceting reliance broadband in ubuntu. then an autorun prompt will come. when i click install another pop up coming saying autorun file not found. And when i checked in Internet connection to add connection. Reliance broadband option iteself is not there as connected device. This is Athira. I could not find any add comment option on my main question. So i created a new account and adding as new answer to ur question. athira@athira-laptop:~$ sudo lsusb Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 004: ID 12d1:1505 Huawei Technologies Co., Ltd. Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 002: ID 08ff:1600 AuthenTec, Inc. AES1600 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 002: ID 0421:0508 Nokia Mobile Phones E65 (PC Suite mode) Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 002: ID 064e:a103 Suyin Corp. Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub athira@athira-laptop:~$ i got this after running it in ubuntu 10.04

  Read the article

• Vhost in Apache only working locally?

  - by Gasman

  Ok, I have added lines like: 127.0.0.1 somedomain.com Or some other domain that points to my routers IP, and is forwarded, but I get to the main site, but I want it to go to the subfolder I defined in my httpd-vhosts.conf: NameVirtualHost somedomain.com:80 <VirtualHost somedomain.com:80> DocumentRoot "D:/Apps/xampp/htdocs/somedomain" ServerName somedomain.com ServerAlias somedomain.com </VirtualHost> So, locally somedomain.com works, just remotely it goes to the root htdocs. So If I use a *:80 wildcard I works, but then everything points to the subfolder and all the other vhosts seem to get ignored. Any Idea why this is?

  Read the article

• Get Func-y

  - by PhubarBaz

  I was working on a Windows form app and needed a way to call out to a service without blocking the UI. There are a lot of ways to do this but I came up with one that I thought was pretty simple. It utilizes the System.Func<> generic class, which is basically a way to create delegates using generics. It's a lot more compact and simpler than creating delegates for each method you want to call asynchronously. I wanted to get it down to one line of code, but it was a lot simpler to use three lines.In this case I have a MyServiceCall method that takes an integer parameter and returns a ServiceCallResult object.public ServiceCallResult MyServiceCall(int param1)...You start by getting a Func<> object for the method you want to call, in this case MyServiceCall. Then you call BeginInvoke() on the Func passing in the parameter. The two nulls are parameters BeginInvoke expects but can be ignored here. BeginInvoke returns an IAsyncResult object that acts like a handle to the method call. Finally to get the value you call EndInvoke on the Func passing in the IAsyncResult object you got back from BeginInvoke.Func<int, ServiceCallResult> f = MyServiceCall;IAsyncResult async = f.BeginInvoke(23, null, null);ServiceCallResult result = f.EndInvoke(async);Doing it this way fires off a new thread that calls the MyServiceCall() method. This leaves the main application thread free to update the UI while the method call is running so it doesn't become unresponsive.

  Read the article

• Apache redirect alias to a different domain

  - by John Magnolia

  I previous had both Web and Mail on the same server and for each of my vhosts/domains, I could visit example.com/mail or foo.com/mail which would display the Roundcube Webmail across all vhosts. E.g Alias /mail "/usr/share/apache2/roundcub/" Although now I have moved the Mail server onto a completely different server and now have a SSL for the main domain. https://mail.example.com which is now the new location of Roundcube for all vhosts/domains. Question: is it possible to redirect all alias for "/mail" from the Web server to the new URL?

  Read the article

• Can I eventually consider myself a professional developer if I don't have a CS degree? [on hold]

  - by heltonbiker

  Question first, context later: If I am a dedicated, self-taught programmer, always seeking top-quality books AND READING THEM, while successfully applying all that new knowledge into my current work, could I call myself (and offer my work as) a PROFESSIONAL developer? How limiting (or how common) that is nowadays? I am afraid that, no matter how hard I study and practice, it could be too difficult to compete with "actual", college graduated developers, and potential employers might have doubts investing in an "undergraduated" person. Now, context: My former profession is from healthcare sector, then I studied mechanical engineering (quit in the middle), then I studied product design (master degree), and I ended up working (very happily) at an engineering company that manufactures medical devices. For more than two years now my main activity in this company is software development. The devices contain software, and we gave up hiring software development (domain knowledge needed, too much communication cost). My current company sees a lot of value in what I do, but I cannot afford the risk of depending on this single company for the rest of my life, you get it. But a lot of job offers require some minimal formal education, usually a CS degree. Fact is that I am sure this is my target profession, I don't plan to go to another area, it is a pleasure to dive into books that normal people would consider unreadable, but I'm 36 years old and can't see going back to college as a viable alternative.

  Read the article

• Benefits of a RAID BBU in addition to a double UPS + PS system

  - by Wikser

  Today I roughly measured the benefits of enabling write-back on the RAID controller on a server at work. It got no RAID battery-backup-unit (BBU) so the write-cache is currently disabled. As the server is not used to capacity (by far), the results in most test were spectacular, e.g.: Database CRUD: before 35s, after 4s Saving a 1MB Excel file: before: 20s (!), after: 0.5s Of course having a BBU is always recommended, but what are the main benefits of installing a BBU to a system, which got redundant power supplies and is attached to UPSs? Does this depend on the type of the system (database, file, terminal)? What is a realistic fail scenario which could be prevented by a BBU? Thanks in advance!

  Read the article

< Previous Page | 634 635 636 637 638 639 640 641 642 643 644 645  | Next Page >