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• How can I install the BlackBerry v5.0.0 component pack into Eclipse?

  - by Dan J

  I'm trying to install the latest v5.0.0 "beta 2" BlackBerry OS Component Pack into Eclipse 3.4.2 with BlackBerry Eclipse plugin v1.0.0.67, but have hit a few problems. Has anybody found an easy way to do this? I had no trouble installing the v4.5.0 and v4.7.0 Component Packs. It's rather strange that BlackBerry are shipping new phones with the v5.0.0 OS installed (e.g. a Storm 2 9550 and Bold 9700 that I just bought), and pushing that update to phones whilst the BlackBerry website still considers the v5.0.0 SDK / Component Packs to be "beta 2"! If anybody knows when an official non-beta Component Pack is going to be released that might solve my problem... In case it helps, the problems I've hit so far are: -Contrary to the implication on the BlackBerry website, the Eclipse "Software Update..." option for the v5.0.0 Component Pack claims it only works on the v1.0.0 Eclipse BlackBerry plugin, not the new v1.1 one. -I then tried to install the v5.0.0 Component Pack through the "Software Updates..." menu in Eclipse using the v1.0.0 Eclipse BlackBery plugin. Once I'd done the 200MB download the install failed with a "Invalid zip file format" error. -I might just have been unlucky with a corrupted download but I did try it twice, once through "Software Updates..." and once by selecting "Archive" to install the downloaded Component Pack (which unlike v4.5.0 and v4.7.0 was a JAR, not a ZIP).

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• Java 1.5 crypto on OS X - AccessControlException

  - by bpapa

  I'm trying to do a Google App Engine project on OS X (latest and greatest). I'm using classes from javax.crypto, and I'm seeing an AccessControlException thrown when I try to initialize an instance of the Mac class. Here's the stack trace: WARNING: Nested in java.lang.ExceptionInInitializerError: java.security.AccessControlException: access denied (java.lang.RuntimePermission loadLibrary.keychain) at java.security.AccessControlContext.checkPermission(AccessControlContext.java:264) at java.security.AccessController.checkPermission(AccessController.java:427) at java.lang.SecurityManager.checkPermission(SecurityManager.java:532) at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:76) at java.lang.SecurityManager.checkLink(SecurityManager.java:818) at java.lang.Runtime.loadLibrary0(Runtime.java:816) at java.lang.System.loadLibrary(System.java:993) at com.apple.crypto.provider.HmacCore.<clinit>(HmacCore.java:26) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:494) at java.lang.Class.newInstance0(Class.java:350) at java.lang.Class.newInstance(Class.java:303) at java.security.Provider$Service.newInstance(Provider.java:1130) at javax.crypto.Mac.a(DashoA12275) at javax.crypto.Mac.init(DashoA12275) Any ideas on 1 - what went wrong and how fix it 2 - if it's not fixable (I know Apple has not been the best supporter of Java in recent years), what's an alternative approach?

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• Install CLSQL on Mac OS X

  - by Ken

  I have SBCL installed (via macports/darwinports) on my Intel Core 2 Duo Macbook running 10.5.8. I've installed several libraries like this: (require 'asdf) (require 'asdf-install) (asdf-install:install 'cl-who) But when I tried to install CLSQL this way ('clsql) after it downloaded, I got this: ... ; registering #<SYSTEM CLSQL-UFFI {123D9E01}> as CLSQL-UFFI ; $ cd /Users/ken/.sbcl/site/clsql-5.0.5/uffi/; make cc -arch x86_64 -arch i386 -bundle /usr/lib/bundle1.o -flat_namespace -undefined suppress clsql_uffi.c -o clsql_uffi.dylib ld: duplicate symbol dyld_stub_binding_helper in /usr/lib/bundle1.o and /usr/lib/bundle1.o for architecture i386 ld: duplicate symbol dyld_stub_binding_helper in /usr/lib/bundle1.o and /usr/lib/bundle1.o for architecture x86_64 collect2: ld returned 1 exit status collect2: ld returned 1 exit status lipo: can't open input file: /var/folders/Nf/Nf4o5ArDFaWBH2OwtnWM3E+++TQ/-Tmp-//ccJyZxou.out (No such file or directory) make: *** [clsql_uffi.so] Error 1 Is there something I forgot, or some trick to get it to build on Mac OS X? I know very little about C libraries on the Mac these days, so I don't even know where to start on this. Thanks!

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• Undefined symbols compiling apache module mod_transform on Mac OS X

  - by Laurence Rowe

  I'm trying to compile mod_transform on Mac OS X 10.6, but get an ld error while running make. Thanks to diciu I have added some CFLAGS which resolve most of the linking problems, but I still am unable to get the apreq2 linking to work $ CFLAGS="-lxml2 -lxslt -L/opt/local/lib -lapreq2" ./configure --with-apr=/opt/local/bin/apr-1-config --with-apr-util=/opt/local/bin/apu-1-config --with-apxs=/opt/local/apache2/bin/apxs --with-apreq2=/opt/local/bin/apreq2-config ...snip... $ make $ make Making all in src /opt/local/share/apr-1/build/libtool --tag=CC --mode=link gcc -Wall -I../include -I/usr/local/include -I/usr/local/include/libxml2 -O2 -arch x86_64 -I/opt/local/include -DDARWIN -DSIGPROCMASK_SETS_THREAD_MASK -no-cpp-precomp -I/opt/local/apache2/include -I/opt/local/include/apr-1 -I/opt/local/include/apr-1 -I/opt/local/include -O2 -arch x86_64 -I/opt/local/include -DDARWIN -DSIGPROCMASK_SETS_THREAD_MASK -no-cpp-precomp -I/opt/local/apache2/include -I/opt/local/include/apr-1 -I/opt/local/include -I/opt/local/include/apr-1 -I/opt/local/include/apreq2 -I/opt/local/include/apr-1 -I/opt/local/include -lxml2 -lxslt -L/opt/local/lib -lapreq2 -module -export-dynamic -avoid-version -no-undefined /opt/local/lib/libapreq2.la -L/opt/local/lib -laprutil-1 -L/opt/local/lib/db46 -L/opt/local/lib -lapr-1 -lpthread -ldb-4.6 -lexpat -liconv -o http.la -rpath /opt/local/apache2/modules/mod_transform http_la-http.lo /usr/bin/gcc-4.2 -o .libs/http.so -bundle .libs/http_la-http.o -lxml2 -lxslt -L/opt/local/lib /opt/local/lib/libapreq2.dylib -L/opt/local/lib/db46 /opt/local/lib/libaprutil-1.dylib /opt/local/lib/libapr-1.dylib -lpthread /opt/local/lib/db46/libdb-4.6.dylib /opt/local/lib/libexpat.dylib /opt/local/lib/libiconv.dylib -arch x86_64 -arch x86_64 Undefined symbols: "_apreq_handle_apache2", referenced from: _transform_run_begin in http_la-http.o _filter_init in http_la-http.o ld: symbol(s) not found collect2: ld returned 1 exit status make[1]: *** [http.la] Error 1 make: *** [all-recursive] Error 1 Anyone have any other tweaks to fix this? This is mod_transform from http://svn.outoforder.cc/svn/mod%5Ftransform/trunk/ Laurence

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• NullPointerException when installing the Android SDK on Mac OS X

  - by Feanor

  I'm installing the Android SDK on Mac OS X. Following the instructions on the Android Development site, I've downloaded the SDK and modified my .bash_profile to include the path. The next step is to use the Android SDK and AVD Manager to actually download the platforms. However, when I use the Manager to install the platforms, I get the following error in the Terminal. I've looked around for similar problems in the Eclipse and Android forums and haven't found anything yet. Is something else damaged in the environment and needs to be repaired? Any recommendations on where I should look? java.lang.NullPointerException at org.eclipse.swt.graphics.Device.getFontList(Unknown Source) at org.eclipse.jface.resource.FontRegistry.filterData(FontRegistry.java:456) at org.eclipse.jface.resource.FontRegistry.createFont(FontRegistry.java:490) at org.eclipse.jface.resource.FontRegistry.defaultFontRecord(FontRegistry.java:551) at org.eclipse.jface.resource.FontRegistry.defaultFontData(FontRegistry.java:563) at org.eclipse.jface.resource.FontRegistry.getFontData(FontRegistry.java:579) at org.eclipse.jface.dialogs.Dialog.dialogFontIsDefault(Dialog.java:1077) at org.eclipse.jface.dialogs.Dialog.applyDialogFont(Dialog.java:998) at org.eclipse.jface.dialogs.Dialog.createContents(Dialog.java:756) at org.eclipse.jface.window.Window.create(Window.java:431) at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1089) at com.android.sdkuilib.internal.repository.UpdateChooserDialog.create(UpdateChooserDialog.java:280) at org.eclipse.jface.window.Window.open(Window.java:790) at com.android.sdkuilib.internal.repository.UpdaterData.updateOrInstallAll(UpdaterData.java:502) at com.android.sdkuilib.internal.repository.RemotePackagesPage.onInstallSelectedArchives(RemotePackagesPage.java:323) at com.android.sdkuilib.internal.repository.RemotePackagesPage.access$600(RemotePackagesPage.java:54) at com.android.sdkuilib.internal.repository.RemotePackagesPage$7.widgetSelected(RemotePackagesPage.java:168) at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source) at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source) at org.eclipse.swt.widgets.Display.sendEvent(Unknown Source) at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source) at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source) at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source) at org.eclipse.swt.widgets.Widget.notifyListeners(Unknown Source) at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source) at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source) at com.android.sdkuilib.internal.repository.UpdaterWindowImpl.open(UpdaterWindowImpl.java:104) at com.android.sdkuilib.repository.UpdaterWindow.open(UpdaterWindow.java:110) at com.android.sdkmanager.Main.showMainWindow(Main.java:281) at com.android.sdkmanager.Main.doAction(Main.java:247) at com.android.sdkmanager.Main.run(Main.java:92) at com.android.sdkmanager.Main.main(Main.java:81) logout

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• Keymap issues with NX from Mac OS X Lion

  - by Andy

  I tried to answer the question from Mark: Keymap issues with NX from Mac OS X Lion to Ubuntu However, it is locked so I figured I would post a new question / answer. I have been trying to answer this for a few days now because I have no issues when connecting through NX Client (technically OpenNX) to FreeNX server from an iMac (with Lion), but if I try to connect with a Macbook Pro I get horrible keyboard binding issues. The fix that is working for me is to go into: ~/.nx/config/HOST.nxs and change: <option key="Current keyboard" value="false"/> <option key="Custom keyboard layout" value="empty"/> <option key="Grab keyboard" value="false"/> I have tried this on three NX Servers and all are fixed. Hope it helps or gets you closer. Always check in the ~/.nx/temp/ for the sshlog and see if --keyboard="empty/empty" instead of "pc105/en" because the Mac is really pc104. 9:05:35: startsession --session="HOST" --type="unix-gnome" --cache="8M" --images="32M" --link="adsl" --geometry="2556\ x1396" --screeninfo="2560x1440x32+render" --keyboard="empty/empty" --backingstore="1" --encryption="1" --composite="1" --\ shmem="1" --shpix="1" --streaming="1" --samba="0" --cups="0" --nodelay="1" --defer="0" --client="macosx" --media="0" --st\ rict="0" --aux="1"

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• perl issuing os command with defined variables

  - by Vinnie Biros

  I am adding functionality into my scripts so that they can use kerberos authentication to run automatically and use secure protocols when executing. I have my functionality working for shell scripts that do exactly what i want, however i am having issues porting it to perl to work within my perl scripts as i am new to perl. Here is my working shell code and trying to get the same functionality in perl: #!/bin/sh ticketFileName=`basename $0-$$` #set filename variable to name of script plus the PID krb5CacheLocation=/tmp/$ticketFileName #set ticket cache location to /tmp + script name /usr/share/centrifydc/kerberos/bin/kinit -c $krb5CacheLocation -kt /root/.ssh/someaccount.keytab someaccount #get TGT and specifiy ticket cache location on kinit export KRB5CCNAME=$krb5CacheLocation #set the KRB5CCNAME variable to tell ssh where to look What i have attempted in perl: #!/usr/bin/perl my $ticketFileName = `basename $0-$$`; my $krb5CacheLocation = '/tmp/'.$ticketFileName; `export KRB5CCNAME=$krb5CacheLocation`; `/usr/share/centrifydc/kerberos/bin/kinit -c $krb5CacheLocation -kt /root/.ssh/unixmap0000.keytab unixmap0000`; Seems it is not liking the passed variable that i am referencing in the OS command. Anyone have any ideas or suggestions?

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• Troubles with PyDev and external libraries in OS X

  - by Davide Gualano

  I've successfully installed the latest version of PyDev in my Eclipse (3.5.1) under OS X 10.6.3, with python 2.6.1 I have troubles in making the libraries I have installed work. For example, I'm trying to use the cx_Oracle library, which is perfectly working if called from the python interpeter of from simple scripts made with some text editor. But I cant make it work inside Eclipse: I have this small piece of code: import cx_Oracle conn = cx_Oracle.connect(CONN_STRING) sql = "select field from mytable" cursor = conn.cursor() cursor.execute(sql) for row in cursor: field = row[0] print field If I execute it from Eclipse, I get the following error: import cx_Oracle File "build/bdist.macosx-10.6-universal/egg/cx_Oracle.py", line 7, in <module> File "build/bdist.macosx-10.6-universal/egg/cx_Oracle.py", line 6, in __bootstrap__ ImportError: dlopen(/Users/dave/.python-eggs/cx_Oracle-5.0.3-py2.6-macosx-10.6-universal.egg-tmp/cx_Oracle.so, 2): Library not loaded: /b/227/rdbms/lib/libclntsh.dylib.10.1 Referenced from: /Users/dave/.python-eggs/cx_Oracle-5.0.3-py2.6-macosx-10.6-universal.egg-tmp/cx_Oracle.so Reason: no suitable image found. Did find: /Users/dave/lib/libclntsh.dylib.10.1: mach-o, but wrong architecture Same snippet works perfectly from the python shell I have configured the interpeter in Eclipse in preferences - PyDev -- Interpreter - Python, using the Auto Config option and selecting all the libs found. What am I doing wrong here? Edit: launching file /Users/dave/.python-eggs/cx_Oracle-5.0.3-py2.6-macosx-10.6-universal.egg-tmp/cx_Oracle.so from the command line tells this: /Users/dave/.python-eggs/cx_Oracle-5.0.3-py2.6-macosx-10.6-universal.egg-tmp/cx_Oracle.so: Mach-O universal binary with 3 architectures /Users/dave/.python-eggs/cx_Oracle-5.0.3-py2.6-macosx-10.6-universal.egg-tmp/cx_Oracle.so (for architecture i386): Mach-O bundle i386 /Users/dave/.python-eggs/cx_Oracle-5.0.3-py2.6-macosx-10.6-universal.egg-tmp/cx_Oracle.so (for architecture ppc7400): Mach-O bundle ppc /Users/dave/.python-eggs/cx_Oracle-5.0.3-py2.6-macosx-10.6-universal.egg-tmp/cx_Oracle.so (for architecture x86_64): Mach-O 64-bit bundle x86_64

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• How can I open VLC via browser with PHP (Mac OS X)

  - by Damiqib

  I'm trying to open VLC via browser and make it instantly play the given video file on Mac OS X. This runs on my local server and is only meant to run locally - therefore I already run apache (MAMP) with my username and with group "staff" (defined in httpd.conf). YES - I do know that VLC has http interface - however that is not what I need, so do not suggest that... My current system works without any problems when I run it via Terminal: php /var/www/Movies/index.php - This leads to VLC opening and video starts playing fullscreen like intented. Problems start when I run the same PHP-page with browser. Then the VLC-process starts, but there's no GUI for it, video file won't start playing and the VLC-process takes nearly 100% of CPU. Both; terminal and browser started VLC-processes run with the same user (mine) Both have "Parent process" bash VLC-process begun with Terminal has empty "Process group" (only process id-number) and browser started has "httpd" + (id-number) VLC-process started via browser makes 1000-times more "Mach System Calls" than it's Terminal-started counterpart. Could anyone give me any pointers on how to get this thing working? index.php # $j is a file path to the videofile and is defined before exec('/var/www/Movies/vlc.sh "' . $j . '" > /dev/null 2>&1 & echo $!;'); # If I do this in the given PHP-page it tells me that apache is running # with my username and with the group "staff" like it should be... exec('whoamI'); vlc.sh #!/bin/bash # Activate VLC in 5 seconds to make it the front-most window (sleep 5; open -a VLC) & # Open video file /Applications/VLC.app/Contents/MacOS/VLC --quiet --fullscreen "$1"

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• Purge complete Python installation on OS X

  - by Konrad Rudolph

  I’m working on a recently-upgraded OS X Snow Leopard and MacPorts and I’m running into problems at every corner. The first problem is the sheer number of installed Python versions: altogether, there are four: 2.5, 2.6 and 3.0 in /Library/Frameworks/Python.framework 2.6 in /opt/local/Library/Frameworks/Python.framework/ (MacPorts installation) So there are at least two useless/redundant versions: 2.5 and the redundant 2.6. Additionally, the pre-installed Python is giving me severe problems because some of the pre-installed libraries (in particular, scipy, numpy and matplotlib) don’t work properly. I am sorely tempted to purge the complete /Library/Frameworks/Python.framework path, as well as the MacPorts Python installation. After that, I’ll start from a clean slate by installing a properly configured Python, e.g. that from Enthought. Am I running headlong into trouble? Or is this a sane undertaking? (In particular, I need a working Python in the next few days and if I end up with a non-working Python this would be a catastrophe of medium proportions. On the other hand, some features I need from matplotlib aren’t working now.)

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• Making RDoc Ruby Gem Default on Mac OS X

  - by jkale

  Hey all, I've recently installed RDoc version (2.4.3) through Ruby gems to replace the one shipped with Mac OS X (version 1.0.1). Unfortunately, I can still only use RDoc 1.0.1 when I call run "rdoc" at the command line. rdoc -v returns: RDoc V1.0.1 - 20041108 I tried amending the $PATH variable to point the first entry to the RDoc 2.4.3 folder but no luck. I couldn't find anything about this online either, so I thought I'd ask here. Cheers! Update: Running "gem list -d --version 1.0.1 rdoc" returns: *** LOCAL GEMS *** rdoc (2.4.3) Authors: Eric Hodel, Dave Thomas, Phil Hagelberg, Tony Strauss Rubyforge: http://rubyforge.org/projects/rdoc Homepage: http://rdoc.rubyforge.org Installed at: /usr/local/lib/ruby/gems/1.8 RDoc is an application that produces documentation for one or more Ruby source files Therefore, it's definitely the Mac OSX version of RDoc that's interfering with the Gems version. Update 2: I found out, using: `bash --debugger rdoc` that the old version of RDoc was in /opt/local/bin. I deleted it and added my gems directory to my $PATH `export PATH=/usr/local/lib/ruby/gems/1.8/gems/` I now have a fresh working copy of the latest RDoc!

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• Best way to do interprocess communication on Mac OS X

  - by jbrennan

  I'm looking at building a Cocoa application on the Mac with a back-end daemon process (really just a mostly-headless Cocoa app, probably), along with 0 or more "client" applications running locally (although if possible I'd like to support remote clients as well; the remote clients would only ever be other Macs or iPhone OS devices). The data being communicated will be fairly trivial, mostly just text and commands (which I guess can be represented as text anyway), and maybe the occasional small file (an image possibly). I've looked at a few methods for doing this but I'm not sure which is "best" for the task at hand. Things I've considered: Reading and writing to a file (…yes), very basic but not very scalable. Pure sockets (I have no experience with sockets but I seem to think I can use them to send data locally and over a network. Though it seems cumbersome if doing everything in Cocoa Distributed Objects: seems rather inelegant for a task like this NSConnection: I can't really figure out what this class even does, but I've read of it in some IPC search results I'm sure there are things I'm missing, but I was surprised to find a lack of resources on this topic.

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• Trying to compile a linux-based app on Mac OS X

  - by Scott

  I'm just trying to compile the linux-based FCEUX (NES emulator) on my mac, OS X 10.5 Leopard. I got all the dependencies (SDL, GTK+ 2) going and everything but of all things this is now my problem: Undefined symbols: "_compress", referenced from: SaveSnapshot() in video.o "_gzclose", referenced from: FCEU_fopen(char const*, char const*, char*, char*, int, char const**)in file.o "_crc32", referenced from: CalcCRC32(unsigned int, unsigned char*, unsigned int)in crc32.o _unzReadCurrentFile in unzip.o _unzReadCurrentFile in unzip.o "_uncompress", referenced from: NetplayUpdate(unsigned char*)in netplay.o FCEUSS_LoadFP(EMUFILE*, ENUM_SSLOADPARAMS) in state.o "_compress2", referenced from: FCEUNET_SendFile(unsigned char, char*)in netplay.o FCEUSS_SaveMS(EMUFILE*, int) in state.o "_inflateEnd", referenced from: _unzCloseCurrentFile in unzip.o "_inflate", referenced from: _unzReadCurrentFile in unzip.o "inflateInit2", referenced from: _unzOpenCurrentFile in unzip.o "_gzgetc", referenced from: FCEU_fopen(char const*, char const*, char*, char*, int, char const**)in file.o "_gzopen", referenced from: FCEU_fopen(char const*, char const*, char*, char*, int, char const**)in file.o "_gzread", referenced from: FCEU_fopen(char const*, char const*, char*, char*, int, char const**)in file.o "_gzseek", referenced from: FCEU_fopen(char const*, char const*, char*, char*, int, char const*)in file.o ld: symbol(s) not found collect2: ld returned 1 exit status scons: ** [src/fceux] Error 1 scons: building terminated because of errors. Those are zlib functions. It seems like it is loading the zlib.h ok, but the symbols aren't being linked in? Just to make sure I downloaded the latest zlib and did a make install, no help. I have no clue what's going on here, it seems like it should be pretty basic, that library is nothing special. Help would be appreciated. Thanks.

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• I'm about to learn x86 assembly on os x 10.6 let me know how compile..plz

  - by kevin choung

  hello~ I'm about to learn x86 assembly language on mac os x... I'm using as instruction to compile assembly file in commend window. but I have several errors.. and I don't know how I can get through.. here is the errors and my assembly code.. which is quite simple. **ung-mi-lims-macbook-pro:pa2 ungmi$ as swap.s swap.s:16:Unknown pseudo-op: .type swap.s:16:Rest of line ignored. 1st junk character valued 115 (s). swap.s:19:suffix or operands invalid for `push' swap.s:46:suffix or operands invalid for `pop' ung-mi-lims-macbook-pro:pa2 ungmi$** and the source is .text .align 4 .globl swap .type swap,@function swap: pushl %ebp movl %esp, %ebp movl %ebp, %esp popl %ebp ret and I searched some solution which is I have to put -arch i386 than **ung-mi-lims-macbook-pro:pa2 ungmi$ as -arch i386 swap.s swap.s:16:Unknown pseudo-op: .type swap.s:16:Rest of line ignored. 1st junk character valued 115 (s). ung-mi-lims-macbook-pro:pa2 ungmi$** could you help me out.. just let me know what I need to compile assembly file.. I have xcode already.. and I'd rather to do this with commend window..and vi editor.. I will be waiting for your answer... plz help me.

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• iPhone OS: Get a list of methods and variables from anonymous object

  - by ChrisOPeterson

  I am building my first iPhone/Obj-c app and I have a large amount of data-holding subclasses that I am passing into a cite function. To the cite function these objects are anonymous and I need to find a way to access all the variables of each passed object. I have been using a pre-built NSArray and Selectors to do this but with more than 30 entries (and growing) it is kind of silly to do manually. There has to be a way to dynamically look up all the variables of an anonymous object. The obj-c runtime run-time docs mention this problem but from what I can tell this is not available in iPhone OS. If it is then I don't understand the implementation and need some guidance. A similar question was asked before but again I think they were talking about OSX and not iPhone. Any thoughts? -(NSString*)cite:(id)source { NSString *sourceClass = NSStringFromClass([source class]); // Runs through all the variables in the manually built methodList for(id method in methodList) { SEL x = NSSelectorFromString(method); // further implementation // Should be something like NSArray *methodList = [[NSArray alloc] initWithObjects:[source getVariableList]] for(id method in methodList) { SEL x = NSSelectorFromString(method); // Further implementation }

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• What does it mean for an OS to "execute within user processes"? Do any modern OS's use that approach

  - by Chris Cooper

  I have recently become interested in operating system, and a friend of mine lent me a book called Operating Systems: Internals and Design Principles (I have the third edition), published in 1998. It's been a very interesting book so far, but I have come to the part dealing with process control, and it's using UNIX System V as one of its examples of an operating system that executes within user processes. This concept has struck me as a little strange. First of all, does this mean that OS instructions and data are stored in each user of the processes? Probably not, because that would be an absurdly redundant scheme. But if not, then what does it mean to "execute within" a user process? Do any modern operating systems use this approach? It seems much more logical to have the operating system execute as its own process, or even independently of all processes, if you're short on memory. All the inter-accessiblilty of process data required for this layout seems to greatly complicate things. (But maybe that's just because I don't quite get the concept ;D) Here is what the book says: "Execution within User Processes: An alternative that is common with operation systems on smaller machines is to execute virtually all operating system software in the context of a user process. ... "

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• Install h5py in Mac OS X 10.6.3

  - by zyq524

  I'm trying to install h5py in Mac OS X 10.6.3. First I installed HDF5 1.8, which used the following commands: ./configure \ --prefix=/Library/Frameworks/Python.framework/Versions/Current \ --enable-shared \ --enable-production \ --enable-threadsafe \ CPPFLAGS=-I/Library/Frameworks/Python.framework/Versions/Current/include \ LDFLAGS=-L/Library/Frameworks/Python.framework/Versions/Current/lib make make check sudo make install Then install h5py: /Library/Frameworks/Python.framework/Versions/Current/bin/python \ setup.py \ build \ --api=18 \ --hdf5=/Library/Frameworks/Python.framework/Versions/Current Then I got the errors: Configure: Autodetecting HDF5 settings... Custom HDF5 dir: /Library/Frameworks/Python.framework/Versions/Current Custom API level: (1, 8) ld: warning: in detect/vers.o, file was built for unsupported file format which is not the architecture being linked (i386) ld: warning: in /Library/Frameworks/Python.framework/Versions/Current/lib/libhdf5.dylib, file was built for unsupported file format which is not the architecture being linked (i386) Undefined symbols: "_main", referenced from: start in crt1.10.5.o ld: symbol(s) not found collect2: ld returned 1 exit status Failed to compile HDF5 test program. Please check to make sure: * You have a C compiler installed * A development version of Python is installed (including header files) * A development version of HDF5 is installed (including header files) * If HDF5 is not in a default location, supply the argument --hdf5=<path> error: command 'cc' failed with exit status 1 I just updated my Xcode, I don't know whether this is because my gcc's default setting. If so, how can I get rid of this error? Thanks.

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• python os.mkfifo() for Windows

  - by user302099

  Hello. Short version (if you can answer the short version it does the job for me, the rest is mainly for the benefit of other people with a similar task): In python in Windows, I want to create 2 file objects, attached to the same file (it doesn't have to be an actual file on the hard-drive), one for reading and one for writing, such that if the reading end tries to read it will never get EOF (it will just block until something is written). I think in linux os.mkfifo() would do the job, but in Windows it doesn't exist. What can be done? (I must use file-objects). Some extra details: I have a python module (not written by me) that plays a certain game through stdin and stdout (using raw_input() and print). I also have a Windows executable playing the same game, through stdin and stdout as well. I want to make them play one against the other, and log all their communication. Here's the code I can write (the get_fifo() function is not implemented, because that's what I don't know to do it Windows): class Pusher(Thread): def __init__(self, source, dest, p1, name): Thread.__init__(self) self.source = source self.dest = dest self.name = name self.p1 = p1 def run(self): while (self.p1.poll()==None) and\ (not self.source.closed) and (not self.source.closed): line = self.source.readline() logging.info('%s: %s' % (self.name, line[:-1])) self.dest.write(line) self.dest.flush() exe_to_pythonmodule_reader, exe_to_pythonmodule_writer =\ get_fifo() pythonmodule_to_exe_reader, pythonmodule_to_exe_writer =\ get_fifo() p1 = subprocess.Popen(exe, shell=False, stdin=subprocess.PIPE, stdout=subprocess.PIPE) old_stdin = sys.stdin old_stdout = sys.stdout sys.stdin = exe_to_pythonmodule_reader sys.stdout = pythonmodule_to_exe_writer push1 = Pusher(p1.stdout, exe_to_pythonmodule_writer, p1, '1') push2 = Pusher(pythonmodule_to_exe_reader, p1.stdin, p1, '2') push1.start() push2.start() ret = pythonmodule.play() sys.stdin = old_stdin sys.stdout = old_stdout

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• PKG can't silent install on Mac Os 10.5

  - by ericdm

  I have made an Installer by PackageMaler3.0.6 on Mac OS 10.8. Also I have add a JavaScript function in Distribution,This function use for detect the certain App is running or not. Some code like this: var allProcess = new Array(); allProcess = system.applications.all(); var allProcessCount = allProcess.length; ... If I normally install (With Installer UI) this pkg on 10.8,10.7,10.5, it's Ok, all function works fine. If i use command line to silent install On 10.8,10.7 it's OK, no error. But if i silent install on 10.5.8, there will be an error in terminal(JavaScript error), can't install. If i remove the code of "var allProcessCount = allProcess.length;" It can silent install on 10.5.8, once if added the code like "allProcess.length" ,there will be an error,it looks like can't use the array property in silent install on 10.5, but 10.7,10.8 it's OK and install with UI it's also Ok on 10.5. Did anyone knows how can i slove this issue? Thanks!!!

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• Synthetic click doesn't switch application's menu bar (Mac OS X)

  - by Rok

  Hi. I'm developing some sort of air mouse application for iPhone platform. This applications connects to one computer service which generates mouse events on Mac OS X. I'm generating this events with CGEventCreateMouseEvent() and CGEventPost(). But I've encountered one problem. Let's say you are using Safari and then you click on free desktop space. If you do this with regular mouse it will hide Safari's top menu bar and show Finder menu bar. But on these synthetic events it doesn't act like that. Do I have to post some other event or set some additional properties? Here is my code for mouse up, mouse down: - (void)mouseUp:(int)button { int type = (button == LEFT_BUTTON) ? kCGEventLeftMouseUp : kCGEventRightMouseUp; int mouseButton = (button == LEFT_BUTTON) ? kCGMouseButtonLeft : kCGMouseButtonRight; leftMouseDown = (button == LEFT_BUTTON) ? NO : leftMouseDown; rightMouseDown = (button == RIGHT_BUTTON) ? NO : rightMouseDown; CGEventSourceRef source = CGEventSourceCreate(kCGEventSourceStateHIDSystemState); CGEventRef event = CGEventCreateMouseEvent (source, type, CGSCurrentInputPointerPosition(), mouseButton); CGEventSetType(event, type); CGEventPost(kCGHIDEventTap, event); CFRelease(event); } - (void)mouseDown:(int)button { int type = (button == LEFT_BUTTON) ? kCGEventLeftMouseDown : kCGEventRightMouseDown; int mouseButton = (button == LEFT_BUTTON) ? kCGMouseButtonLeft : kCGMouseButtonRight; leftMouseDown = (button == LEFT_BUTTON) ? YES : leftMouseDown; rightMouseDown = (button == RIGHT_BUTTON) ? YES : rightMouseDown; CGEventSourceRef source = CGEventSourceCreate(kCGEventSourceStateHIDSystemState); CGEventRef event = CGEventCreateMouseEvent (source, type, CGSCurrentInputPointerPosition(), mouseButton); CGEventSetType(event, type); CGEventPost(kCGHIDEventTap, event); CFRelease(event); }

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• Thread is being killed by the OS

  - by Or.Ron

  I'm currently programming an app that extracts frames from a movie clip. I designed it so that the extraction will be done on a separate thread to prevent the application from freezing. The extraction process itself is taking a lot of resources, but works fine when used in the simulator. However, there are problems when building it for the iPad. When I perform another action (I'm telling my AV player to play while I extract frames), the thread unexpectedly stops working, and I believe it's being killed. I assume it's becauase I'm using a lot of resources, but not entirely sure. Here are my questions: 1. How can I tell if/why my thread stopping? 2. If it's really from over processing what should I do? I really need this action to be implemented. Heres some code im using: To create the thread: [NSThread detachNewThreadSelector:@selector(startReading) toTarget:self withObject:nil]; I'll post any information you need, Thanks so much! Update I'm using GCD now and it populates the threads for me. However the OS still kills the threads. I know exactly when is it happening. when i tell my [AVplayer play]; it kills the thread. This issue is only happening in the actual iPad and not on the simulator

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• Processor, OS : 32bit, 64 bit

  - by Sandbox

  I am new to programming and come from a non-CS background (no formal degree). I mostly program winforms using C#. I am confused about 32 bit and 64 bit.... I mean, have heard about 32 bit OS, 32 bit processor and based on which a program can have maximum memory. How it affects the speed of a program. There are lot more questions which keep coming to mind. I tried to go through some Computer Organization and Architecture books. But, either I am too dumb to understand what is written in there or the writers assume that the reader has some CS background. Can someone explain me these things in a plain simple English or point me to something which does that. EDIT: I have read things like In 32-bit mode, they can access up to 4GB memory; in 64-bit mode, they can access much much more....I want to know WHY to all such things. BOUNTY: Answers below are really good....esp one by Martin. But, I am looking at a thorough explanation, but in plain simple English.

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• OS-independent Inter-program communication between Python and C

  - by Gyppo

  I have very little idea what I'm doing here, I've never done anything like this before, but a friend and I are writing competing chess programs and they need to be able to communicate to each other. He'll be writing mainly in C, the bulk of mine will be in Python, and I can see a few options: Alternately write to a temp file, or successive temp files. As the communication won't be in any way bulky this could work, but seems like an ugly work-around to me, the programs will have to keep checking for change/new files, it just seems ugly. Find some way of manipulating pipes i.e. mine.py| ./his . This seems like a bit of a dead end. Use sockets. But I don't know what I'd be doing, so could someone give me a pointer to some reading material? I'm not sure if there are OS-independent, language independent methods. Would there have to be some kind of supervisor server program to administrate? Use some kind of HTML protocol, which seems like overkill. I don't mind the programs having to run on the same machine. What do people recommend, and where can I start reading?

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• Problem connecting to postgres with Kohana 3 database module on OS X Snow Leopard

  - by Bart Gottschalk

  Environment: Mac OS X 10.6 Snow Leopard PHP 5.3 Kohana 3.0.4 When I try to configure and use a connection to a postgresql database on localhost I get the following error: ErrorException [ Warning ]: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///var/mysql/mysql.sock) Here is the configuration of the database in /modules/database/config/database.php (note the third instance named 'pgsqltest') return array ( 'default' => array ( 'type' => 'mysql', 'connection' => array( /** * The following options are available for MySQL: * * string hostname * string username * string password * boolean persistent * string database * * Ports and sockets may be appended to the hostname. */ 'hostname' => 'localhost', 'username' => FALSE, 'password' => FALSE, 'persistent' => FALSE, 'database' => 'kohana', ), 'table_prefix' => '', 'charset' => 'utf8', 'caching' => FALSE, 'profiling' => TRUE, ), 'alternate' => array( 'type' => 'pdo', 'connection' => array( /** * The following options are available for PDO: * * string dsn * string username * string password * boolean persistent * string identifier */ 'dsn' => 'mysql:host=localhost;dbname=kohana', 'username' => 'root', 'password' => 'r00tdb', 'persistent' => FALSE, ), 'table_prefix' => '', 'charset' => 'utf8', 'caching' => FALSE, 'profiling' => TRUE, ), 'pgsqltest' => array( 'type' => 'pdo', 'connection' => array( /** * The following options are available for PDO: * * string dsn * string username * string password * boolean persistent * string identifier */ 'dsn' => 'mysql:host=localhost;dbname=pgsqltest', 'username' => 'postgres', 'password' => 'dev1234', 'persistent' => FALSE, ), 'table_prefix' => '', 'charset' => 'utf8', 'caching' => FALSE, 'profiling' => TRUE, ), ); And here is the code to create the database instance, create a query and execute the query: $pgsqltest_db = Database::instance('pgsqltest'); $query = DB::query(Database::SELECT, 'SELECT * FROM test')->execute(); I'm continuing to research a solution for this error but thought I'd ask to see if someone else has already found a solution. Any ideas are welcome. One other note is that I know my build of PHP can access this postgresql db since I'm able to manage the db using phpPgAdmin. But I have yet to determine what phpPgAdmin is doing differently to connect to the db than what Kohana 3 is attempting. Bart

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• memcpy segmentation fault on linux but not os x

  - by Andre

  I'm working on implementing a log based file system for a file as a class project. I have a good amount of it working on my 64 bit OS X laptop, but when I try to run the code on the CS department's 32 bit linux machines, I get a seg fault. The API we're given allows writing DISK_SECTOR_SIZE (512) bytes at a time. Our log record consists of the 512 bytes the user wants to write as well as some metadata (which sector he wants to write to, the type of operation, etc). All in all, the size of the "record" object is 528 bytes, which means each log record spans 2 sectors on the disk. The first record writes 0-512 on sector 0, and 0-15 on sector 1. The second record writes 16-512 on sector 1, and 0-31 on sector 2. The third record writes 32-512 on sector 2, and 0-47 on sector 3. ETC. So what I do is read the two sectors I'll be modifying into 2 freshly allocated buffers, copy starting at record into buf1+the calculated offset for 512-offset bytes. This works correctly on both machines. However, the second memcpy fails. Specifically, "record+DISK_SECTOR_SIZE-offset" in the below code segfaults, but only on the linux machine. Running some random tests, it gets more curious. The linux machine reports sizeof(Record) to be 528. Therefore, if I tried to memcpy from record+500 into buf for 1 byte, it shouldn't have a problem. In fact, the biggest offset I can get from record is 254. That is, memcpy(buf1, record+254, 1) works, but memcpy(buf1, record+255, 1) segfaults. Does anyone know what I'm missing? Record *record = malloc(sizeof(Record)); record->tid = tid; record->opType = OP_WRITE; record->opArg = sector; int i; for (i = 0; i < DISK_SECTOR_SIZE; i++) { record->data[i] = buf[i]; // *buf is passed into this function } char* buf1 = malloc(DISK_SECTOR_SIZE); char* buf2 = malloc(DISK_SECTOR_SIZE); d_read(ad->disk, ad->curLogSector, buf1); d_read(ad->disk, ad->curLogSector+1, buf2); memcpy(buf1+offset, record, DISK_SECTOR_SIZE-offset); memcpy(buf2, record+DISK_SECTOR_SIZE-offset, offset+sizeof(Record)-sizeof(record->data));

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