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• Android Get Image Uri from Camera

  - by josnidhin

  Hi I have an application that calls the android phone's default camera to take photo the following is my code. Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(intent, TAKE_PICTURE); and in the onActivityResult method I am doing the following if ((requestCode == TAKE_PICTURE) && (resultCode == Activity.RESULT_OK)) { Uri photoPath = intent.getData(); // do something with the uri here } The above code works fine on htc Tatto and Sony ericsson's x10 running 1.6 but in on htc G1 running 1.6 the above code causes the following exception 03-08 18:54:25.906: ERROR/AndroidRuntime(4344): Uncaught handler: thread main exiting due to uncaught exception 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent { act=inline-data (has extras) }} to activity removed java.lang.NullPointerException 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): at android.app.ActivityThread.deliverResults(ActivityThread.java:3224) 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): at android.app.ActivityThread.handleSendResult(ActivityThread.java:3266) 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): at android.app.ActivityThread.access$2600(ActivityThread.java:116) 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1823) 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): at android.os.Handler.dispatchMessage(Handler.java:99) 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): at android.os.Looper.loop(Looper.java:123) 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): at android.app.ActivityThread.main(ActivityThread.java:4203) 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): at java.lang.reflect.Method.invokeNative(Native Method) 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): at java.lang.reflect.Method.invoke(Method.java:521) 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): at dalvik.system.NativeStart.main(Native Method) 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): Caused by: java.lang.NullPointerException 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): at removed 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): at android.app.Activity.dispatchActivityResult(Activity.java:3624) 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): at android.app.ActivityThread.deliverResults(ActivityThread.java:3220) 03-08 18:54:25.966: ERROR/AndroidRuntime(4344): ... 11 more Any insights into how to solve this problem. Thank you.

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• HTTP 500 ERROR on CAS Server while setting SSLVerifyClent as "required"

  - by Huiyu.Bird

  I have 3 servers, a Apache Server, a JBOSS Server and a CAS Server for SSO. The Apache Server resolve all request with a domain such as www.request.com, and the path of CAS Server is www.request.com/cas, and JBOSS Server is www.request.com/jboss (This app got a CAS client). My problem is if I set SSLVerifyClient require for the NameVirtualHost of www.request.com in my Apache Server, I got a HTTP 500 error during the redirecting to the JBOSS Server(http://www.request.com/jboss), after logined in the CAS login page successfully. But everything goes successfully if there is no SSLVerifyClient require . Error logs of my Apache Server : [Mon Apr 19 17:07:25 2010] [error] Re-negotiation handshake failed: Not accepted by client!? Error logs of my JBOSS Server : 2010-04-19 17:29:57,263 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/jboss].[jsp]] (ajp-0.0.0.0-8009-1) Servlet.service() for servlet jsp threw exception org.jasig.cas.client.validation.TicketValidationException: The CAS server returned no response. at org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:162) at org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:129) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:103) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:78) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.in Any tips will be highly appreciated. Thanks in advance.

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• micro-SD card initialization using SPI interface

  - by Ron

  I'm using a micro-SD card in an embedded design. The card is connected to a microcontroller using the SPI interface. It worked fine for all cards I've used before, but now my new card will not initialize. The card is a Transcend 2GB micro-SD card (TS2GUSD). After sending the initial clock train to switch to SPI mode I do the following: 1) CMD0 (Argument 0, CRC 0x95) - Response 0x01 - OK 2) CMD8 (Argument 0x000001AA, CRC 0x87) - Response 0x01 0x000001AA - Means it's SDC V2+ card, the Voltage range 2.7V~3.6V is supported - OK Then I should send the ACMD41 command, but when sending the CMD55 (argument 0, CRC 0) that must precede CMD41, I get response 0x05 - Illegal Command. I've also tried to send CMD1 (for MMC cards), but it gives a similar Illegal Command response. The code works fine with my Sandisk 2GB micro-SD card. Does anyone have any idea? Thanks, -Ron-

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• Apache Camel ESB for C# and Java EDA

  - by Dokie

  Hi We are looking at integrating some of our coarse grained business Services using an Event Driven Architecture (EDA) and the server side of these Services (REST) are implemented in both Java and .NET (C#). We originally thought of using RabbitMQ (and AMQP protocol) as a neutral and open means (with good client support in these two languages), but it means having to support another runtime (Erlang) alongside Java and the CLR. We are also looking at Apache qPid as that has a Java broker implementation of the AMQP protocol which might eliminate that concern. Does anyone have any experience of trying to use the richer Apache Camel ESB on top of ActiveMQ to integrate Java and .NET Services in a Pub-Sub EDA manner? Have I missed any other possible suggestions as to a route through this? Thanks

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• Android SQLite database gets corrupted

  - by Seu

  There are about 100 people using my Android App right now and every once and while I get a crash report to the server with this stack trace: android.database.sqlite.SQLiteDatabaseCorruptException: database disk image is malformed at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2596) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2621) at android.app.ActivityThread.access$2200(ActivityThread.java:126) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1932) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:123) at android.app.ActivityThread.main(ActivityThread.java:4595) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:521) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) at dalvik.system.NativeStart.main(Native Method) Caused by: android.database.sqlite.SQLiteDatabaseCorruptException: database disk image is malformed at android.database.sqlite.SQLiteQuery.native_fill_window(Native Method) at android.database.sqlite.SQLiteQuery.fillWindow(SQLiteQuery.java:75) at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:295) at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:276) at android.database.AbstractCursor.moveToPosition(AbstractCursor.java:171) at android.database.AbstractCursor.moveToFirst(AbstractCursor.java:248) The result is the app crashing and all the data in the DB being lost. One thing to note is that every time I read or write to the database I get a new SQLiteDatabase and close it as soon as I'm done. I thought this would simplify things, but perhaps that's causing the problem? Is it possible this is just a SQLite bug?

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• Anyone have BlazeDS working with WebLogic Security (j_security_check) ??

  - by Brian

  I'm working on a Flex implementation (currently using SDK 3.5) on WebLogic 10.3 (11G.) We originally used Glassfish v2.1.1 with zero issues (there was an active directory group lookup bug but it did not hinder our progress.) Since transitioning to WebLogic we have an issue where the flexsession is invalidated after logging in using j_security_check: [BlazeDS]Unexpected error encountered in Message Broker servlet flex.messaging.LocalizedException: The FlexSession is invalid. at flex.messaging.FlexSession.checkValid(FlexSession.java:943) at flex.messaging.FlexSession.getUserPrincipal(FlexSession.java:254) at flex.messaging.HttpFlexSession.getUserPrincipal(HttpFlexSession.java:286) at flex.messaging.MessageBrokerServlet.service(MessageBrokerServlet.java:296) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227) at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125) at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292) at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:175) at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3594) at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321) at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121) at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2202) at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2108) at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1432) at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201) at weblogic.work.ExecuteThread.run(ExecuteThread.java:173) I've tried almost every option in services-config.xml: [security [login-command class="flex.messaging.security.WeblogicLoginCommand" server="Weblogic"/> [!-- Uncomment the correct app server [login-command class="flex.messaging.security.TomcatLoginCommand" server="JBoss"> [login-command class="flex.messaging.security.JRunLoginCommand" server="JRun"/> [login-command class="flex.messaging.security.TomcatLoginCommand" server="Tomcat"/> [login-command class="flex.messaging.security.WebSphereLoginCommand" server="WebSphere"/> --> [/security> I've even completely removed this section with no luck. The login functions correctly from a non-BlazeDS perspective. It authenticates the user correctly. Without authentication, BlazeDS works fine (no errors for any remote calls.) Together its a big ball of fail (invalid flexsession every time.) Has anyone got this working? Any tips?

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• PHP Portal similar to java portal

  - by cc96ai

  Java has couple portal open source, does PHP has similar too? or port from java?

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• embedding layout inside each tab? - (each tab has its own activity)

  - by Abhi

  I have started with the HelloTabwidget example and it works fine. Now what I am trying to do is have a layout inside each tab. here is what the code looks like myApp extends TabActivity { TabHost tabHost; onCreate() { setContentView (R.layout.main); tabHost = getTabHost(); TabHost.tabspec spec = tabHost.newTabSpec(..).setIndicator(...). setContent(new Intent().setClass(...)); tabHost.addTab(spec); : } } myTab1Actvity extends Activity { ListView myLV; EditText myET; onCreate() { setcontentView (TAB1_LAYOUT); myLV = findViewById(..); : myLV.setAdapter(aa); myET.setOnKeyListener(....) registerforContextMenu(myLV) } } when I run here is the stack trace ERROR/AndroidRuntime(691): java.lang.NullPointerException ERROR/AndroidRuntime(691): at android.widget.TabHost.dispatchWindowFocusChanged(TabHost.java:295) ERROR/AndroidRuntime(691): at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:661) ERROR/AndroidRuntime(691): at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:661) ERROR/AndroidRuntime(691): at android.widget.TabHost.dispatchWindowFocusChanged(TabHost.java:295) ERROR/AndroidRuntime(691): at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:661) ERROR/AndroidRuntime(691): at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:661) ERROR/AndroidRuntime(691): at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:661) ERROR/AndroidRuntime(691): at android.view.ViewRoot.handleMessage(ViewRoot.java:1819) ERROR/AndroidRuntime(691): at android.os.Handler.dispatchMessage(Handler.java:99) ERROR/AndroidRuntime(691): at android.os.Looper.loop(Looper.java:123) ERROR/AndroidRuntime(691): at android.app.ActivityThread.main(ActivityThread.java:4363) ERROR/AndroidRuntime(691): at java.lang.reflect.Method.invokeNative(Native Method) ERROR/AndroidRuntime(691): at java.lang.reflect.Method.invoke(Method.java:521) ERROR/AndroidRuntime(691): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) ERROR/AndroidRuntime(691): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) Does the code's flow look OK? basically each Tab has its own activity and each tab has its own layout. It appears that something is wrong in the TabHost - but I am unable to pinpoint it. Any suggestions/Qs you hav e will be very helpful.

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• Wrong number of args passed to: repl$repl

  - by grm

  Hi, I have a trouble with a compojure "Getting started" example that I do not seem to understand. When I run the example from http://weavejester.github.com/compojure/docs/getting-started.html ...I get the following error at the lein repl step: ~/hello-www> lein repl src/hello_www/core.clj Exception in thread "main" java.lang.IllegalArgumentException: Wrong number of args passed to: repl$repl (NO_SOURCE_FILE:0) at clojure.lang.Compiler.eval(Compiler.java:5359) at clojure.lang.Compiler.eval(Compiler.java:5311) at clojure.core$eval__4350.invoke(core.clj:2364) at clojure.main$eval_opt__6502.invoke(main.clj:228) at clojure.main$initialize__6506.invoke(main.clj:247) at clojure.main$script_opt__6526.invoke(main.clj:263) at clojure.main$main__6544.doInvoke(main.clj:347) at clojure.lang.RestFn.invoke(RestFn.java:483) at clojure.lang.Var.invoke(Var.java:381) at clojure.lang.AFn.applyToHelper(AFn.java:180) at clojure.lang.Var.applyTo(Var.java:482) at clojure.main.main(main.java:37) Caused by: java.lang.IllegalArgumentException: Wrong number of args passed to: repl$repl at clojure.lang.AFn.throwArity(AFn.java:439) at clojure.lang.AFn.invoke(AFn.java:43) at clojure.lang.Var.invoke(Var.java:369) at clojure.lang.AFn.applyToHelper(AFn.java:165) at clojure.lang.Var.applyTo(Var.java:482) at clojure.core$apply__3776.invoke(core.clj:535) at leiningen.core$_main__59$fn__61.invoke(core.clj:94) at leiningen.core$_main__59.doInvoke(core.clj:91) at clojure.lang.RestFn.applyTo(RestFn.java:138) at clojure.core$apply__3776.invoke(core.clj:535) at leiningen.core$_main__59.invoke(core.clj:97) at user$eval__67.invoke(NO_SOURCE_FILE:1) at clojure.lang.Compiler.eval(Compiler.java:5343) ... 11 more I have tried both the stable and the developer version of lein without any success. Any ideas on what I could look for next? I get the same result both on linux and cygwin. When I run it manually, it seems to work fine on linux: java -cp "lib/*" clojure.main src/hello_www/core.clj 2010-05-17 19:34:17.280::INFO: Logging to STDERR via org.mortbay.log.StdErrLog 2010-05-17 19:34:17.281::INFO: jetty-6.1.14 2010-05-17 19:34:17.382::INFO: Started [email protected]:8080

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• NoSuchMethod exception when using scala Regex class... confused...

  - by hbatista

  Hi there, I have a simple Scala project that runs without any problems inside Eclipse, however, when packaged into a .jar I receive this exception when running it: Exception in thread "AWT-EventQueue-0" java.lang.NoSuchMethodError: scala.util.matching.Regex.replaceAllIn(Ljava/lang/CharSequence;Lscala/Function1;)Ljava/lang/String; What is going on here?... The code line in question, and the full stack are below. This is the offending line: "alt=\"[^>]+\">".r.replaceAllIn(inputStr, {_.replace(">", "/>")}) Full stack: Exception in thread "AWT-EventQueue-0" java.lang.NoSuchMethodError: scala.util.matching.Regex.replaceAllIn(Ljava/lang/CharSequence;Lscala/Function1;)Ljava/lang/String; at com.inosat.fuel.FuelStationDgge.fixhtml(FuelStationDgge.scala:40) at com.inosat.fuel.FuelStationDgge.setDetails(FuelStationDgge.scala:82) at com.inosat.fuel.DggeParser$$anon$1.propertyChange(DggeParser.scala:49) at java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source) at java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source) at java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source) at org.jdesktop.beans.AbstractBean.firePropertyChange(AbstractBean.java:302) at org.jdesktop.http.async.AsyncHttpRequest.setReadyState(AsyncHttpRequest.java:705) at org.jdesktop.http.async.AsyncHttpRequest.access$600(AsyncHttpRequest.java:79) at org.jdesktop.http.async.AsyncHttpRequest$AsyncWorker.done(AsyncHttpRequest.java:831) at javax.swing.SwingWorker$5.run(Unknown Source) at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.run(Unknown Source) at sun.swing.AccumulativeRunnable.run(Unknown Source) at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.actionPerformed(Unknown Source) at javax.swing.Timer.fireActionPerformed(Unknown Source) at javax.swing.Timer$DoPostEvent.run(Unknown Source) at java.awt.event.InvocationEvent.dispatch(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source)

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• UART speed possibly wrong

  - by Mike

  My brain is fried, so I thought I would pass this one to the community. When sending 1 character to my embedded system, it consistently thinks it receives 2 characters. The first received character seems to map to the transmitted character (in some unkown way) and the second received character is always 0xff Here is what I observed: Tx char (in hex) Rx character (in hex), I left out the second byte (always ff) 31 9D 32 9B 33 99 61 3D 62 3B 63 39 64 37 65 35 41 7D 42 7B 43 79 I have check my clocks and them seem to be ok. The only diff between this non working version and the previous version is that i am now using a RS485 chip. I have traced the signal all the way up to the MCU and it looks fine (confirmed the bit value on the rx pin)

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• OMAP 3530: How fast can I toggle an IO?

  - by raj.tiwari

  I am putting together an application for OMAP 3530 SoC. This application will run some user interface code on embedded linux and invoke waveform generation code on the DSP. The DSP and Linux sides will interact over DSP/BIOS link. My questions are: What is the highest frequency at which my DSP-side code can toggle a GPIO line? If I want to toggle multiple GPIO lines at this hight rate, how fast can I go? Thanks for any insights. -Raj

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• Monitoring pthread context switching

  - by simon

  I would like to monitor the the context switching behavior in a multi-threaded pthread application. In other RTOSes(Micro C OS) I have been able to register a context switch callback for each thread in the application, and then log (or toggle a gpio) and watch the thread context switching in real time. This was a valuable tool for debugging the real time behavior and interaction of the multiple threads. My current environment is embedded linux utilizing the pthread api. Is there a way to montior each of the context switches?

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• How are Scala traits compiled into Java bytecode?

  - by Justin Ardini

  I have played around with Scala for a while now, and I know that traits can act as the Scala equivalent of both interfaces and abstract classes. Recently I've been wondering how exactly traits are compiled into Java bytecode. I found some short explanations that stated traits are compiled exactly like Java interfaces when possible, and interfaces with an additional class otherwise. I still don't understand, however, how Scala achieves class linearization, a feature not available in Java. Could anyone explain or provide a good source explains how traits compile to Java bytecode?

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• Free static checker for C99 code

  - by detly

  I am looking for a free static checker for C99 code (including GCC extensions) with the ability to explicitly say "these preprocessor macros are always defined." I need that last part because I am compiling embedded code for a single target processor. The compiler (Microchip's C32, GCC based) sets a macro based on the selected processor, which is then used in the PIC32 header files to select a processor-specific header file to include. cppcheck therefore fails because it detects the 30 different #ifdefs used to select one of the many possible PIC32 processors, tries to analyse all possible combinations of these plus all other #defines, and fails. For example, if splint could process C99 code, I would use splint -D__PIC32_FEATURE_SET__=460 -D__32MX460F512L__ \ -D__LANGUAGE_C__ -I/path/to/my/includes source.c

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• Minecraft server Rkit ubuntu upstart [closed]

  - by user1637491

  I have an Intel server running Ubuntu Server 12.04.1 I am working on moving my CraftBukkit Minecraft Server to the new platform. I read the upstart ubuntu cookbook and wrote a .conf file I have a minecraft user (named minecraft) and its home Directory is /home/minecraft it contains prwxrwxrwx 1 minecraft minecraft 0 Sep 19 14:49 command-fifo drwx------ 8 minecraft minecraft 4096 Sep 19 14:50 HDsaves drwx------ 2 minecraft minecraft 4096 Aug 31 15:13 logrolls -rw-r--r-- 1 root root 5 Sep 19 14:49 minecraft.pid drwxrwxrwx 8 minecraft minecraft 180 Sep 19 14:49 ramdisk -rw------- 1 minecraft minecraft 119 Sep 19 10:34 save.sh drwxrwxrwx 9 minecraft minecraft 4096 Sep 19 14:50 server -rw-rw-r-- 1 minecraft minecraft 44 Aug 31 11:40 shutdown.sh the server directory contains drwxrwxrwx 6 minecraft minecraft 4096 Aug 30 13:32 Backups -rwxrwxrwx 1 minecraft minecraft 0 Sep 18 12:26 banned-ips.txt -rwxrwxrwx 1 minecraft minecraft 17 Sep 18 12:26 banned-players.txt drwxrwxrwx 4 minecraft minecraft 4096 Aug 30 12:26 buildcraft -rwxrwxrwx 1 minecraft minecraft 1447 Sep 18 12:26 bukkit.yml -rwxrwxrwx 1 minecraft minecraft 0 Aug 30 11:05 command-fifo drwxrwxrwx 2 minecraft minecraft 4096 Aug 30 12:26 config lrwxrwxrwx 1 minecraft minecraft 23 Sep 19 14:49 craftbukkit.jar -> ramdisk/craftbukkit.jar -rwxrwxrwx 1 minecraft minecraft 17419 Sep 18 12:26 ForgeModLoader-0.log -rwxrwxrwx 1 minecraft minecraft 17420 Sep 18 12:24 ForgeModLoader-1.log -rwxrwxrwx 1 minecraft minecraft 17420 Sep 18 11:53 ForgeModLoader-2.log -rwxrwxrwx 1 minecraft minecraft 2576 Aug 30 11:05 help.yml drwxrwxrwx 2 minecraft minecraft 4096 Aug 30 12:31 lib drwxrwxrwx 3 minecraft minecraft 4096 Sep 19 14:49 logrolls -rwxrwxrwx 1 minecraft minecraft 200035 Sep 4 17:58 Minecraft_RKit.jar lrwxrwxrwx 1 minecraft minecraft 12 Sep 19 14:49 mods -> ramdisk/mods -rwxrwxrwx 1 minecraft minecraft 5 Sep 18 12:26 ops.txt -rwxrwxrwx 1 minecraft minecraft 0 Aug 30 11:05 permissions.yml lrwxrwxrwx 1 minecraft minecraft 15 Sep 19 14:49 plugins -> ramdisk/plugins lrwxrwxrwx 1 minecraft minecraft 16 Sep 19 14:49 redpower -> ramdisk/redpower -rw-r--r-- 1 root root 255 Sep 19 15:10 server.log -rwxrwxrwx 1 minecraft minecraft 464 Sep 8 11:09 server.properties drwxrwxrwx 3 minecraft minecraft 4096 Sep 5 16:05 SpaceModule drwxrwxrwx 3 minecraft minecraft 4096 Aug 30 13:07 toolkit -rwxrwxrwx 1 minecraft minecraft 1433 Sep 14 21:04 wepif.yml -rwxrwxrwx 1 minecraft minecraft 0 Sep 18 12:26 white-list.txt lrwxrwxrwx 1 minecraft minecraft 13 Sep 19 14:49 world -> ramdisk/world lrwxrwxrwx 1 minecraft minecraft 20 Sep 19 14:49 world_nether -> ramdisk/world_nether lrwxrwxrwx 1 minecraft minecraft 21 Sep 19 14:49 world_the_end -> ramdisk/world_the_end the startup .conf file: # Starts the minecraft server after loading JRE from ramdisk # # for now im still working on it description "minecraft-server" start on filesystem or runlevel [2345] stop on runlevel [!2345] oom score -999 kill timeout 60 pre-start script sh /usr/lib/jvm/java.sh end script script cd /home/minecraft echo "$(date) Starting minecraft" sudo cp -r /home/minecraft/HDsaves/* ramdisk sudo chown -R minecraft:minecraft ramdisk sudo chmod -R 777 ramdisk sudo ln -sf ramdisk/* server sudo chown -R minecraft:minecraft server sudo chmod -R 777 server sudo mv server/server.log server/logrolls/ zip server/logrolls/temp.zip server/logrolls/server.log sudo mv server/logrolls/temp.zip server/logrolls/"$(date)".log.zip sudo rm server/logrolls/server.log sudo rm -f command-fifo sudo mkfifo command-fifo sudo chown minecraft:minecraft command-fifo sudo chmod 777 command-fifo echo "$(date) Root commands finished" echo "$(date) Starting Wrapper" cd server sudo -u minecraft java -Xmx30M -Xms30M -XX:MaxPermSize=40M -Djava.awt.headless=true -jar Minecraft_RKit.jar timv:*spoilers* <> /home/minecraft/command-fifo & sudo echo $! >| /home/minecraft/minecraft.pid echo "$(date) Minecraft Started" end script pre-stop script cd /home/minecraft PID=`cat minecraft.pid` if [ "$PID" != "" ]; then echo "Stopping MineCraft Server PID=$PID" sudo echo save-all >> command-fifo sudo echo .stopwrapper >> command-fifo wait $PID sudo rm minecraft.pid sudo rsync -rt --delete ramdisk/* HDsaves/ echo "$(date) ramdisk save complete" echo "MineCraft save-shutdown complete." else echo "MineCraft not running" fi end script so when I start it up the upstart gererated log says: Wed Sep 19 14:49:30 CDT 2012 Starting minecraft adding: server/logrolls/server.log (stored 0%) Wed Sep 19 14:49:56 CDT 2012 Root commands finished Wed Sep 19 14:49:56 CDT 2012 Starting Wrapper Wed Sep 19 14:49:56 CDT 2012 Minecraft Started

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• What file format contents starts with "URES"?

  - by Jordan

  I have a number of files that contain data in a format I am not familiar with. All of the data files begin with the same byte sequence, presumably a file header, and the sequence is "URES". I'm assuming that these files are some kind of resource file, perhaps a collection of data or other files all embedded into one file; that's just a guess however. Does anyone know what format this is/might be? If so, how would I interrogate the file? Are there applications that let me open these kind of files? Do you know of any libraries or APIs that I can use to gain programmatic access the data?

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• zlib memory usage / performance. With 500kb of data.

  - by unixman83

  Is zLib Worth it? Are there other better suited compressors? I am using an embedded system. Frequently, I have only 3MB of RAM or less available to my application. So I am considering using zlib to compress my buffers. I am concerned about overhead however. The buffer's average size will be 30kb. This probably won't get compressed by zlib. Anyone know of a good compressor for extremely limited memory environments? However, I will experience occasional maximum buffer sizes of 700kb, with 500kb much more common. Is zlib worth it in this case? Or is the overhead too much to justify? My sole considerations for compression are RAM overhead of algorithm and performance at least as good as zlib.

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• On-the-fly lossless image compression

  - by geschema

  I have an embedded application where an image scanner sends out a stream of 16-bit pixels that are later assembled to a grayscale image. As I need to both save this data locally and forward it to a network interface, I'd like to compress the data stream to reduce the required storage space and network bandwidth. Is there a simple algorithm that I can use to losslessly compress the pixel data? I first thought of computing the difference between two consecutive pixels and then encoding this difference with a Huffman code. Unfortunately, the pixels are unsigned 16-bit quantities so the difference can be anywhere in the range -65535 .. +65535 which leads to potentially huge codeword lengths. If a few really long codewords occur in a row, I'll run into buffer overflow problems.

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• Why does localization with resx files fail with ZH (chinese) only?

  - by Trey Carroll

  Howdy All, I've been tasked with localizing an English language ASP.NET MVC 2.0 website into 7 additional languages. I've added resource files to the Views Home App_LocalResources folder: Example: Index.resx, Index.es.resx, Index.fr.resx, Index.zh.resx, etc. I have set the CustomTool to PublicResXFileCodeGenerator (Access modifier is Public), Set file as an Embedded Resource, Set a Custom Tool Namespace. The keys ("Name") in all of the files are the same. For 7 languages this works perfectly. If I go into IE 8 settings and change the language to de,fr,it, etc., the page shows the appropriate translated strings. However, when I set the language in the Browser to any of the zh (Simplified Chinese) variants localization completely fails and the English strings are displayed. Is there something special about Simplified Chinese? Japanese and Korean work without problems. TIA, Trey Carroll

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• What operating systems available for an 8-bit microprocessor?

  - by Benoit

  It does not need to be a full fledged OS, but at least have multitasking capabilities (i.e. a scheduler). Please mention what processor architecture it works on. This is a survey, so exact capabilities are not really important. Think of this as being a place to look at for possibilities when your next 8-bit embedded project comes up... I realize that most 8-bit micro do not require an OS, but just as a counter-example, Rabbit Semiconductor offers the RCM3710 processor module with 4 serial ports, a 10-BaseT ethernet port, 512K RAM and 512K Flash. All that for $39. All based around an 8-bit Z80 core. 8-bit does NOT necessarily mean extreme resource constraint.

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• How to retrieve a binary file from .NET assembly?

  - by Rahul Soni

  I have an excel file that I want to embed in my C# assembly. I have changed the build action of the XLSX file to "Embedded Resource". During runtime, I have to retrieve this XLSX file from the assembly. Assembly assembly = Assembly.GetExecutingAssembly(); StreamReader sr = new StreamReader(assembly.GetManifestResourceStream("AssemblyName.Output.xlsx"), true); StreamWriter sw = new StreamWriter(strPath); sw.Write(sr.ReadToEnd()); sr.Dispose(); sw.Dispose(); System.Diagnostics.Process.Start(strPath); As expected, this fails for the XLSX file since it is a binary data. This could works well with a text file. I tried binary read/write, but I am not able to get the code running. Thoughts?

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• How to determine the Window size in IE for a window to be opened from the COM API?

  - by stwissel

  I'm using the IE control embedded in an application. Works as advertised. When a user opens a new browser window I intercept the NewWindow2 event and force it into a new tab. However for a certain class of windows I want to allow a popup. Most notably a few windows legacy applications that use popup windows instead of Ajax for Date or Name pickers. How can I figure out that a window was requested by JavaScript window.open(...) or with a specific size? Thx for helping.

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• Consuming a USB HID device in Windows CE 6.0 using c#

  - by kersny

  I am working on an Embedded Windows CE project and am interested in accessing a USB HID device through one of its USB Host ports. All I really need to read are the raw HID spec packets. On a windows computer, I have a working program using hid.dll, but as far as I have researched, there is no equivalent on CE. I know there is the usbhid.dll, but I'm not sure if it is applicable for this situation. I would prefer not to write a kernel level driver, as I would like to do my coding in c#. Has anyone had experience consuming an HID device on Windows CE?

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• HTTP 500 a problem on CAS Server while setting SSLVerifyClent as "required"

  - by Huiyu.Bird

  I have 3 server, a Apache Server, a JBOSS Server and a CAS Server for SSO. The Apache Server resolve all request with a domain such as www.request.com, and the path of CAS Server is www.request.com/cas, and JBOSS Server is www.request.com/jboss (This app got a CAS client). My problem is if I set SSLVerifyClient require for the NameVirtualHost of www.request.com in my Apache Server, I got a HTTP 500 error during the redirecting to the JBOSS Server(http://www.request.com/jboss), after logined in the CAS login page successfully. But everything goes successfully if there is no SSLVerifyClient require . Error logs of my Apache Server : [Mon Apr 19 17:07:25 2010] [error] Re-negotiation handshake failed: Not accepted by client!? Error logs of my JBOSS Server : 2010-04-19 17:29:57,263 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/jboss].[jsp]] (ajp-0.0.0.0-8009-1) Servlet.service() for servlet jsp threw exception org.jasig.cas.client.validation.TicketValidationException: The CAS server returned no response. at org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:162) at org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:129) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:103) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:78) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.in Any tips will be highly appreciated. Thanks in advance.

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