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  • Java SE Embedded-Enabled Raspberry Pi Ice Bucket Challenge

    - by hinkmond
    Help fight ALS at: http://www.alsa.org/fight-als/ See: Java SE Embedded-Enabled Raspberry Pi Ice Bucket Challenge My Java SE Enabled Raspberry Pi accepts the nomination for the ALS Ice Bucket Challenge and I hereby nominate the Nest thermostat, the Fitbit fitness tracker, and Apple TV. Take the Ice Bucket Challenge. Help find the cure for ALS: http://www.alsa.org/fight-als/ice-bucket-challenge.html Hinkmond

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  • Cucumber can't find installed gems

    - by artemave
    environment/cucumber.rb: ... # gem dependencies config.gem 'cucumber-rails', :lib => false, :version => '>=0.3.0' unless File.directory?(File.join(Rails.root, 'vend config.gem 'database_cleaner', :lib => false, :version => '>=0.5.0' unless File.directory?(File.join(Rails.root, 'vend config.gem 'webrat', :lib => false, :version => '>=0.7.0' unless File.directory?(File.join(Rails.root, 'vend config.gem 'spork', :lib => false, :version => '>=0.7.5' unless File.directory?(File.join(Rails.root, 'vend config.gem 'factory_girl', :source => 'http://gemcutter.org' config.gem 'selenium-client', :lib => false config.gem 'Selenium', :lib => false config.gem 'rspec', :lib => 'spec' config.gem 'rspec-rails', :lib => 'spec/rails' config.gem 'test-unit', :lib => false Running cucumber gives missing gems error: artem:~/projects/food4feed (master)$ cucumber ... no such file to load -- test-unit /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/polyglot-0.3.0/lib/polyglot.rb:65:in `require' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/polyglot-0.3.0/lib/polyglot.rb:65:in `require' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:158:in `require' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/rails-2.3.5/lib/rails/gem_dependency.rb:208:in `load' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/rails-2.3.5/lib/initializer.rb:307:in `block in load_gems' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/rails-2.3.5/lib/initializer.rb:307:in `each' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/rails-2.3.5/lib/initializer.rb:307:in `load_gems' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/rails-2.3.5/lib/initializer.rb:169:in `process' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/rails-2.3.5/lib/initializer.rb:113:in `run' /home/artem/projects/food4feed/config/environment.rb:9:in `<top (required)>' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/polyglot-0.3.0/lib/polyglot.rb:65:in `require' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/polyglot-0.3.0/lib/polyglot.rb:65:in `require' /home/artem/projects/food4feed/features/support/env.rb:12:in `block in <top (required)>' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/spork-0.8.1/lib/spork.rb:23:in `prefork' /home/artem/projects/food4feed/features/support/env.rb:10:in `<top (required)>' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/polyglot-0.3.0/lib/polyglot.rb:65:in `require' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/polyglot-0.3.0/lib/polyglot.rb:65:in `require' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/cucumber-0.6.3/lib/cucumber/rb_support/rb_language.rb:124:in `load_code_file' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/cucumber-0.6.3/lib/cucumber/step_mother.rb:85:in `load_code_file' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/cucumber-0.6.3/lib/cucumber/step_mother.rb:77:in `block in load_code_files' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/cucumber-0.6.3/lib/cucumber/step_mother.rb:76:in `each' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/cucumber-0.6.3/lib/cucumber/step_mother.rb:76:in `load_code_files' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/cucumber-0.6.3/lib/cucumber/cli/main.rb:48:in `execute!' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/cucumber-0.6.3/lib/cucumber/cli/main.rb:20:in `execute' /home/artem/.rvm/gems/ruby-1.9.1-p378/gems/cucumber-0.6.3/bin/cucumber:8:in `<top (required)>' /home/artem/.rvm/gems/ruby-1.9.1-p378/bin/cucumber:19:in `load' /home/artem/.rvm/gems/ruby-1.9.1-p378/bin/cucumber:19:in `<main>' Missing these required gems: selenium-client Selenium rspec-rails test-unit You're running: ruby 1.9.1.378 at /home/artem/.rvm/rubies/ruby-1.9.1-p378/bin/ruby rubygems 1.3.5 at /home/artem/.rvm/gems/ruby-1.9.1-p378, /home/artem/.rvm/gems/ruby-1.9.1-p378%global All gems are obviously there: artem:~/projects/food4feed (master)$ gem list | egrep "elenium|rspec|test-unit" rspec (1.3.0) rspec-rails (1.3.2) Selenium (1.1.14) selenium-client (1.2.18) test-unit (2.0.7) The even more confusing part is that it only complains about certain gems. factory_girl and rspec don't cause problems. Any idea what is going on? My environment: Rails 2.3.5 cucumber (0.6.3) cucumber-rails (0.3.0)

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  • icefaces datatable component

    - by chetan
    I have two datatable in two different jspx page but when I call one then i try to call other old one still display what is the problem there. from the old page only datatable is display no other component are displayed. This is one jspx page -- -- <div style="margin-bottom: 20px;"> <div> <div class="page-navi"> <ice:dataPaginator id="dataScroll_3" for="companyDataTable1" paginator="true"> <f:facet name="first"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-first.gif" title="First Page" /> </f:facet> <f:facet name="last"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-last.gif" title="Last Page" /> </f:facet> <f:facet name="previous"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-previous.gif" title="Previous Page" /> </f:facet> <f:facet name="next"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-next.gif" title="Next Page" /> </f:facet> </ice:dataPaginator> </div> <ice:panelGroup> <ice:dataTable id="companyDataTable1" rendered="#{createLeaveBean.empRender}" binding="#{createLeaveBean.empTable}" value="#{createLeaveBean.lstEmployeeeInfo}" var="currentRow" width="80%" cellpadding="0" cellspacing="0" headerClass="std-table-header" styleClass="std-table" rows="10"> <ice:column style="width: 1%"> <f:facet name="header"> <ice:selectBooleanCheckbox id="selectallemp" partialSubmit="true" value="#{createLeaveBean.selectAll}" valueChangeListener="#{createLeaveBean.toggleSelectedFields}" onkeydown="moveFocus(event,'selectoneemp')" tabindex="8"></ice:selectBooleanCheckbox> </f:facet> <ice:selectBooleanCheckbox id="selectoneemp" value="#{currentRow.notify}" tabindex="9" ></ice:selectBooleanCheckbox> </ice:column> <ice:column style="width: 5%;"> <f:facet name="header"><ice:outputText value="Employee Id" /></f:facet> <ice:outputText value="#{currentRow.employeeInfoId}" /> </ice:column> <ice:column style="width: 34%;"> <f:facet name="header"><ice:outputText value="Employee Name" /></f:facet> <ice:outputText value="#{currentRow.firstName}" /> </ice:column> </ice:dataTable> </ice:panelGroup> </div> <ice:commandButton id="createleave" tabindex="12" value="Create" action="#{createLeaveBean.createLeavePolicyEmp}" styleClass="std-btn" style="margin-right: 10px;margin-left: 50px;margin-top: 15px"></ice:commandButton> <ice:commandButton id="cancelleave" tabindex="13" value="Cancel" action="#{createLeaveBean.cancelLeavePolicyEmp}" rendered="true" styleClass="std-btn" style="margin-top: 15px"></ice:commandButton> </div> This is second jspx page <div class="page-navi"> <ice:dataPaginator id="dataScroll_4" for="companyDataTable2" paginator="true"> <f:facet name="first"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-first.gif" title="First Page" /> </f:facet> <f:facet name="last"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-last.gif" title="Last Page" /> </f:facet> <f:facet name="previous"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-previous.gif" title="Previous Page" /> </f:facet> <f:facet name="next"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-next.gif" title="Next Page" /> </f:facet> </ice:dataPaginator> </div> <ice:panelGroup> <ice:dataTable id="companyDataTable2" rendered="#{createLeaveBean.deptRender}" binding="#{createLeaveBean.empTable}" value="#{createLeaveBean.lstEmployeeeInfo}" var="currentRowww" width="96%" cellpadding="0" cellspacing="0" headerClass="std-table-header" styleClass="std-table" rows="10"> <ice:column style="width: 5%;"> <f:facet name="header"><ice:outputText value="Employee Id" /></f:facet> <ice:outputText value="#{currentRowww.employeeInfoId}" /> </ice:column> <ice:column style="width: 34%;"> <f:facet name="header"><ice:outputText value="Employee Name" /></f:facet> <ice:outputText value="#{currentRowww.firstName}" /> </ice:column> </ice:dataTable> </ice:panelGroup> <ice:commandButton id="createLeave" value="Create" action="#{createLeaveBean.createLeavePolicyDept}" styleClass="std-btn" tabindex="8" style="margin-right: 10px;margin-left: 40px;margin-top: 15px"></ice:commandButton> <ice:commandButton id="cancelLeave" value="Cancel" action="#{createLeaveBean.cancelLeavePolicyDept}" rendered="true" styleClass="std-btn" tabindex="9" style="margin-top: 15px"></ice:commandButton>

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  • STUN, TURN, ICE library for Java.

    - by Hemeroc
    I need to establish a P2P UDP and TCP Connection between two Users. Both of them are behind a NAT. A little research leads me to STUN, TURN and ICE. Is there any Java solution (library) except jSTUN which seems to work only on UDP. And TURN, ICE is much better for the symmetric NAT Problem.

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  • ZeroC Ice "checked casts" in Scala

    - by Alexey Romanov
    ZeroC Ice for Java translates every Slice interface Simple into (among other things) a proxy interface SimplePrx and a proxy SimplePrxHelper. If I have an ObjectPrx (the base interface for all proxies), I can check whether it actually has interface Simple by using a static method on SimplePrxHelper: val obj : Ice.ObjectPrx = ...; // Get a proxy from somewhere... val simple : SimplePrx = SimplePrxHelper.checkedCast(obj); if (simple != null) // Object supports the Simple interface... else // Object is not of type Simple... I wanted to write a method castTo so that I could replace the second line with val simple = castTo[SimplePrx](obj) or val simple = castTo[SimplePrxHelper](obj) So far as I can see, Scala's type system is not expressive enough to allow me to define castTo. Is this correct?

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  • 2d Ice movement

    - by Jeremy Clarkson
    I am building an top-down 2d RPG like zelda. I have been trying to implement ice sliding. I have a tile with the slide property. I thought it would be easy to get working. I figured that I would read the slide property, and move the character forward until the slide property no longer exists. So I tried a loop but all it did was stop at the first tile in an infinite loop. I then took the loop out and tried taking direct control of the character to move him along the slide path but I couldn't get it to move. Is there an easy way to do an ice sliding tile based movement in libgdx. I looked for a tutorial but none exist.

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  • ORACLE OPENWORLD - DAY 3 LINUX SESSIONS and ICE CREAM SOCIAL

    - by Zeynep Koch
    It had been two days of amazing sessions but we have more to come.  Day 3 will bring following sessions for Oracle Linux fans: Wed, October 3rd: Hands On Lab: Oracle Linux Package Management, 10:15am, Marriot Salon, 14/15 YB level Hands On Lab: Oracle Linux Storage Management, 12:45pm, Marriot Salon, 14/15 YB level Why Switch to Oracle Linux, 3:30pm, Moscone South #270 We also have a great Ice Cream Social to cool you down in this weather. Visit our Oracle Linux Pavilion, Moscone South #1033 between 1-2pm to see Partners that support Oracle Linux and Oracle VM and grab your ticket for an ice cream sponsored by QLogic. We look forward to seeing you in these great events.

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  • Software Center not opening after installing Ice from Peppermint

    - by darkapex
    Software Center is not opening since I installed "Ice" software (used in Peppermint OS) from ppa:kendalltweaver/peppermint and i keep getting this error - $ software-center ERROR:root:DebFileApplication import Traceback (most recent call last): File "/usr/share/software-center/softwarecenter/db/__init__.py", line 3, in <module> from debfile import DebFileApplication File "/usr/share/software-center/softwarecenter/db/debfile.py", line 25, in <module> from softwarecenter.db.application import Application, AppDetails File "/usr/share/software-center/softwarecenter/db/application.py", line 28, in <module> from softwarecenter.backend.channel import is_channel_available File "/usr/share/software-center/softwarecenter/backend/channel.py", line 25, in <module> from softwarecenter.distro import get_distro File "/usr/share/software-center/softwarecenter/distro/__init__.py", line 194, in <module> distro_instance = _get_distro() File "/usr/share/software-center/softwarecenter/distro/__init__.py", line 169, in _get_distro module = __import__(distro_id, globals(), locals(), [], -1) ImportError: No module named Peppermint

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  • Oracle presentations at the CIPS ICE Conference, November 5 - 7, Edmonton, Alberta, Canada

    - by Darin Pendergraft
    Oracle will be presenting at the CIPS ICE conference the last week of October in Calgary and the first week of November in Edmonton. Here is a list of the presentations for Edmonton: SHAW Conference Centre • Session Title: Identity and Access Management Integrated; Analyzing the Platform vs Point Solution Approach • Speaker: Darin Pendergraft • Monday, November 5th @ 10:45 AM - 12:00 PM • Session Title: Is Your IT Security Strategy Putting Your Institution at Risk? • Speaker: Spiros Angelopoulos • Monday, November 5th @ 1:45 PM - 3:00 PM Three sessions under the TRAIN: Practical Knowledge Track • Monday, November 5th @ 10:45 AM, 1:45 PM, 3:30 PM • Title: What's new in the Java Platform   Presenter: Donald Smith • Title: Java Enterprise Edition 6   Presenter: Shaun Smith • Title: The Road Ahead for Java SE, JavaFX and Java EE    Presenters: Donald Smith and Shaun Smith To learn more about the conference, and to see the other sessions go to the conference website.

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  • A Database and LDAP Ice Breaker Video

    - by mark.wilcox
    I made another GoAnimate video - this time it's about using LDAP for database passwords. Since it's on the free site - I didn't want to violate any terms of agreement - so it doesn't mention Oracle explicitly. But if you wanted to actually do what the animation talks about with Oracle database - you need to configure the Oracle database to use Oracle Enterprise User Security. EUS requires OVD or OID and works with most popular LDAP servers including Active Directory and of course our newest Oracle Directory member - Directory Server Enterprise Edition (aka the former Sun directory). So - if you are looking for a simple way to explain why you might want to use LDAP passwords with your databases or maybe just a slight chuckle on a Friday afternoon have a look at the video: -- Posted via email from Virtual Identity Dialogue

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  • Getting photos and music on/off samsung/google galaxy nexus (ice cream sandwich) phone

    - by wim
    I am having trouble to access the filesystem on my phone. It just worked in previous version of Ubuntu, but now it appears empty whether it is mounted with MTP or PTP. I have followed a few guides on building and reinstalling libmtp etc without success. This answer did not help for me, either, and gMTP just hangs when I click the connect button. I know I can use wifi e.g. airdroid to access my photos, but this is too slow and a bit clumsy for me, and downloaded photos lose their original timestamps. Has anyone had success connecting to this phone on 12.04 ??

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  • Why can't I create soft link on vboxsf file system?

    - by Artem Ice
    ln -s keeps saying me that file system is read-only, however it is not. ice@distantstar:~/virt ? touch file ice@distantstar:~/virt ? rm file ice@distantstar:~/virt ? ln -s ~/.bashrc ~/virt/.bashrc ln: failed to create symbolic link `/home/ice/virt/.bashrc': Read-only file system ice@distantstar:~/virt ? mount | grep virt none on /home/ice/virt type vboxsf (rw,nodev,relatime) ice@distantstar:~/virt ? cat /etc/fstab | grep virt VIRT /home/ice/virt vboxsf rw 0 0

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  • JAVA: ICEFACES: component <ice:selectInputDate> mapped on a "java.util.Calendar" field

    - by blummihaela
    Does anybody knows how can component <ice:selectInputDate> be mapped on a java.util.Calendar field, not java.util.Date? I am using from IceFaces version 1.8.2, the component <ice:selectInputDate>. This component requires to be bound with a java.util.Date proeprty. For example, value="#{bean.myDate}", the myDate field must be of type java.util.Date. But I need my date field to be of type java.util.Calendar. My trials: I have tried to use standard converter or a custom one: Standard one: <f:convertDateTime pattern="dd/MM/yyyy" /> it formats correct the value in GUI, but when setting it on the property bean.myDate of type Calendar I get following error message: [5/3/10 12:09:18:398 EEST] 00000021 lifecycle I WARNING: FacesMessage(s) have been enqueued, but may not have been displayed. sourceId=j_id12:j_id189:myDate[severity=(ERROR 2), summary=(/WEB-INF/xhtml............file.xhtml @507,51 value="#{bean.myDate}": Can't set property 'myDate' on class 'bean' to value '5/11/10 3:00 AM'.), detail=(/WEB-INF/xhtml........file.xhtml @507,51 value="#{bean.myDate}": Can't set property 'myDate' on class '...bean...' to value '5/11/10 3:00 AM'.)] Custom one: <f:converter converterId="c2d"/> getAsObject - returns the java.util.Calendar object out of the submitted String. getAsString - receives an Object, and returns the String formatted. NOTE: this method was hacked so instead of expecting java.util.Calendar, to be complementary with getAsObject method. Instead, the hacked method getAsString, expects an java.util.Date, provided as parameter (by ice:selectInputDate) and returns the String formatted. But still an error message occurs: [5/3/10 12:55:34:299 EEST] 0000001f D2DFaceletVie E com.icesoft.faces.facelets.D2DFaceletViewHandler renderResponse Problem in renderResponse: java.util.GregorianCalendar incompatible with java.util.Date java.lang.ClassCastException: java.util.GregorianCalendar incompatible with java.util.Date at com.icesoft.faces.component.selectinputdate.SelectInputDate.getTextToRender(SelectInputDate.java:252) Any hint is very useful! Thanks, Mihaela

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  • light.exe : error LGHT0217: Error executing ICE action &lsquo;ICE*&rsquo; with BizTalk Deployment Framework &amp; TFS 2010 Build.

    - by Vishal
    Hi there, Recently I was working with BizTalk Deployment Framework v5.0 for my BizTalk Sever 2009 projects and TFS 2010 Builds. I had followed all the steps mentioned in the BTDF documentation to create the build definition and also followed the steps to setup the Build Server with BTDF. After few hiccups I was stuck at this light.exe validation error. The detailed error is as below: light.exe : error LGHT0217: Error executing ICE action 'ICE06'. The most common cause of this kind of ICE failure is an incorrectly registered scripting engine. See http://wix.sourceforge.net/faq.html#Error217 for details and how to solve this problem. The following string format was not expected by the external UI message logger: "The Windows Installer Service could not be accessed. This can occur if the Windows Installer is not correctly installed. Contact your support personnel for assistance." I found few blog posts and forum answers out there which had steps to resolve the error but all of them mentioned different things. Like: Some mentioned that disable the validation itself so that the VBScript would not be called. (I didn’t want to disable the validation.) Another said to put NT AUTHORITY\NETWORK SERVICE in the local Administrators group but this is not recommended as it opens up network security holes. But what actually worked for me was: TFS Build Service Account was part of the Administrator group on the Build Server which is OK. But somehow it was also part of the IIS_IUSR Group. I removed the TFS Build Service Account from the IIS_IUSR group. Queued up my TFS Build but same error. Again after some digging, I found that I had not restarted the Visual Studio Team Build Service. In a Nutshell: Remove TFS Build Service Account from IIS_IUSR Group. Restart the Visual Studio Team Build Service, either from Services or TFS Console.   Hope this resolves the issue for someone and not waste bunch of hours.   Thanks, Vishal Mody

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  • GCC ICE -- alternative function syntax, variadic templates and tuples

    - by Marc H.
    (Related to C++0x, How do I expand a tuple into variadic template function arguments?.) The following code (see below) is taken from this discussion. The objective is to apply a function to a tuple. I simplified the template parameters and modified the code to allow for a return value of generic type. While the original code compiles fine, when I try to compile the modified code with GCC 4.4.3, g++ -std=c++0x main.cc -o main GCC reports an internal compiler error (ICE) with the following message: main.cc: In function ‘int main()’: main.cc:53: internal compiler error: in tsubst_copy, at cp/pt.c:10077 Please submit a full bug report, with preprocessed source if appropriate. See <file:///usr/share/doc/gcc-4.4/README.Bugs> for instructions. Question: Is the code correct? or is the ICE triggered by illegal code? // file: main.cc #include <tuple> // Recursive case template<unsigned int N> struct Apply_aux { template<typename F, typename T, typename... X> static auto apply(F f, const T& t, X... x) -> decltype(Apply_aux<N-1>::apply(f, t, std::get<N-1>(t), x...)) { return Apply_aux<N-1>::apply(f, t, std::get<N-1>(t), x...); } }; // Terminal case template<> struct Apply_aux<0> { template<typename F, typename T, typename... X> static auto apply(F f, const T&, X... x) -> decltype(f(x...)) { return f(x...); } }; // Actual apply function template<typename F, typename T> auto apply(F f, const T& t) -> decltype(Apply_aux<std::tuple_size<T>::value>::apply(f, t)) { return Apply_aux<std::tuple_size<T>::value>::apply(f, t); } // Testing #include <string> #include <iostream> int f(int p1, double p2, std::string p3) { std::cout << "int=" << p1 << ", double=" << p2 << ", string=" << p3 << std::endl; return 1; } int g(int p1, std::string p2) { std::cout << "int=" << p1 << ", string=" << p2 << std::endl; return 2; } int main() { std::tuple<int, double, char const*> tup(1, 2.0, "xxx"); std::cout << apply(f, tup) << std::endl; std::cout << apply(g, std::make_tuple(4, "yyy")) << std::endl; } Remark: If I hardcode the return type in the recursive case (see code), then everything is fine. That is, substituting this snippet for the recursive case does not trigger the ICE: // Recursive case (hardcoded return type) template<unsigned int N> struct Apply_aux { template<typename F, typename T, typename... X> static int apply(F f, const T& t, X... x) { return Apply_aux<N-1>::apply(f, t, std::get<N-1>(t), x...); } }; Alas, this is an incomplete solution to the original problem.

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  • Quand Samsung surfe sur la vague de l'ALS Ice Bucket Challenge, le coréen en profite pour faire de la publicité à son Galaxy S5

    Quand Samsung surfe sur la vague de l'ALS Ice Bucket Challenge, le coréen en profite pour faire de la publicité à son Galaxy S5 Vous avez sans doute entendu parler de l'ALS Ice Bucket Challenge. Il s'agit d'un défi consistant à se renverser ou se faire renverser un seau d'eau glacée sur la tête avant d'inviter une ou plusieurs (au maximum trois) connaissances à reproduire son geste. Ces personnes ont alors 24 heures pour relever le défi. Si elle ne se prête pas au jeu, la personne doit déclarer...

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  • valuechangelistener in ice:selectBooleanCheckbox

    - by chetan
    There is a jspx page in my application where I use datatable within datatable first column I put is selectbooleancheckbox and I use value changelistener for selectbooleabcheckbox. Now problem is for two column first one is actually active when I click on second. This is a code

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  • How to use pthread_atfork() and pthread_once() to reinitialize mutexes in child processes

    - by Blair Zajac
    We have a C++ shared library that uses ZeroC's Ice library for RPC and unless we shut down Ice's runtime, we've observed child processes hanging on random mutexes. The Ice runtime starts threads, has many internal mutexes and keeps open file descriptors to servers. Additionally, we have a few of mutexes of our own to protect our internal state. Our shared library is used by hundreds of internal applications so we don't have control over when the process calls fork(), so we need a way to safely shutdown Ice and lock our mutexes while the process forks. Reading the POSIX standard on pthread_atfork() on handling mutexes and internal state: Alternatively, some libraries might have been able to supply just a child routine that reinitializes the mutexes in the library and all associated states to some known value (for example, what it was when the image was originally executed). This approach is not possible, though, because implementations are allowed to fail *_init() and *_destroy() calls for mutexes and locks if the mutex or lock is still locked. In this case, the child routine is not able to reinitialize the mutexes and locks. On Linux, the this test C program returns EPERM from pthread_mutex_unlock() in the child pthread_atfork() handler. Linux requires adding _NP to the PTHREAD_MUTEX_ERRORCHECK macro for it to compile. This program is linked from this good thread. Given that it's technically not safe or legal to unlock or destroy a mutex in the child, I'm thinking it's better to have pointers to mutexes and then have the child make new pthread_mutex_t on the heap and leave the parent's mutexes alone, thereby having a small memory leak. The only issue is how to reinitialize the state of the library and I'm thinking of reseting a pthread_once_t. Maybe because POSIX has an initializer for pthread_once_t that it can be reset to its initial state. #include <pthread.h> #include <stdlib.h> #include <string.h> static pthread_once_t once_control = PTHREAD_ONCE_INIT; static pthread_mutex_t *mutex_ptr = 0; static void setup_new_mutex() { mutex_ptr = malloc(sizeof(*mutex_ptr)); pthread_mutex_init(mutex_ptr, 0); } static void prepare() { pthread_mutex_lock(mutex_ptr); } static void parent() { pthread_mutex_unlock(mutex_ptr); } static void child() { // Reset the once control. pthread_once_t once = PTHREAD_ONCE_INIT; memcpy(&once_control, &once, sizeof(once_control)); setup_new_mutex(); } static void init() { setup_new_mutex(); pthread_atfork(&prepare, &parent, &child); } int my_library_call(int arg) { pthread_once(&once_control, &init); pthread_mutex_lock(mutex_ptr); // Do something here that requires the lock. int result = 2*arg; pthread_mutex_unlock(mutex_ptr); return result; } In the above sample in the child() I only reset the pthread_once_t by making a copy of a fresh pthread_once_t initialized with PTHREAD_ONCE_INIT. A new pthread_mutex_t is only created when the library function is invoked in the child process. This is hacky but maybe the best way of dealing with this skirting the standards. If the pthread_once_t contains a mutex then the system must have a way of initializing it from its PTHREAD_ONCE_INIT state. If it contains a pointer to a mutex allocated on the heap than it'll be forced to allocate a new one and set the address in the pthread_once_t. I'm hoping it doesn't use the address of the pthread_once_t for anything special which would defeat this. Searching comp.programming.threads group for pthread_atfork() shows a lot of good discussion and how little the POSIX standards really provides to solve this problem. There's also the issue that one should only call async-signal-safe functions from pthread_atfork() handlers, and it appears the most important one is the child handler, where only a memcpy() is done. Does this work? Is there a better way of dealing with the requirements of our shared library?

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  • Keep alive using SIP in .net

    - by Ramesh Soni
    I am creating an application where I need to implement SIP protocol in .NET. We have Client-Server setup where client keeps on sending keep alive message to server. We can only use SIP protocol or any other protocol which is support with ICE. Could some one help me in implementing this. I don't have much idea about these protocols but I know .net very well. Some sample code would be of great help.

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  • Using ZeroC Middleware

    - by Sean
    I'm currently looking at various middleware solutions that will allow me to create applications in a variety of languages which are able to communicate amongst each other. The ZeroC product suite seems ideal as it provides a language agnostic way of defining data and the services that operate on the data (via its ICE idl) and provides support for all the mainstream languages. It also appears to offer a lot of other things we'd want, such as load balancing, grid computing and managed deployment. However, my google-fu has let me down and I'm having trouble finding information from people who have used it to implements system. I'm looking for feedback from projects that use it, and what issues/successes they had. I'm also interested in feedback from projects that evaluated it and chose not to use it (and why).

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  • Change players state and controls in-game

    - by Samurai Fox
    I'm using Unity 3D Let's say the player is an ice cube. You control it like a normal player. On press of a button, ice transforms (with animation) into water. You control it completely different than the ice cube. Another great example would be: Player is human being and has normal FPS controls. On press of a button human transforms into birds and now has completely different controls. Now, my question is, what would be easier and better: make one object with animation transition and to stay in that state of anim. until button is pressed again make two object: ice and water. Ice has an animation of turning into water. So replace ice (with animation) with water object And if anyone knows this one too: how to switch between 2 different types of player controls.

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  • Action Item shown only in Landscape?

    - by roboguy12
    I was just wondering if it were at all possible for an Action Bar icon to only be shown when the device is in landscape mode? In portrait I have an onscreen button for a certain task, but in order to take advantage of all of the screen-space in landscape, that button won't fit. So I was wondering if I could put it in the Action Bar, but it would only be necessary when the device is in landscape. Thanks!

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  • How do I open android built in downloads app?

    - by user1502829
    So I'm downloading stuff and it gets put into the built in downloads app since thats how the download manager works. I just want to the user to click a button which opens the built in downloads app. Heres my try: btnDownloads.setOnClickListener(new Button.OnClickListener(){ public void onClick(View v) { PackageManager pakMan=MainActivity.context.getPackageManager(); Log.d("bebr", "Making pak"); if(pakMan!=null){ Intent downloadsIntent=new Intent(Intent.ACTION_MAIN).addCategory(Intent.CATEGORY_LAUNCHER).setComponent(new ComponentName("com.android.downloads","com.android.downlods.Downloads")); ResolveInfo resolved=pakMan.resolveActivity(downloadsIntent, PackageManager.MATCH_DEFAULT_ONLY); Log.d("bebr","Resolving"); if(resolved!=null){ Log.d("bebr", "Starting"); startActivity(downloadsIntent); } } } });

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  • Disable keyboard on EditText

    - by Ferox
    I'm doing a calculator. So I made my own Buttons with numbers and functions. The expression that has to be calculated, is in an EditText, because I want users can add numbers or functions also in the middle of the expression, so with the EditText I have the cursor. But I want to disable the Keyboard when users click on the EditText. I found this example that it's ok for Android 2.3, but with ICS disable the Keyboard and also the cursor. public class NoImeEditText extends EditText { public NoImeEditText(Context context, AttributeSet attrs) { super(context, attrs); } @Override public boolean onCheckIsTextEditor() { return false; } } And then I use this NoImeEditText in my XML file <com.my.package.NoImeEditText android:id="@+id/etMy" .... /> How I can make compatible this EditText with ICS??? Thanks.

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