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• compiling openss7

  - by deddihp

  hello, i got an error while compiling openss7. Do you know what happen ? Thanks.... gcc -DHAVE_CONFIG_H -I. -I. -I. -DLFS=1 -imacros ./config.h -imacros ./include/sys/config.h -I. -I./include -I./include -nostdinc -iwithprefix include -DLINUX -D__KERNEL__ -I/usr/src/linux-headers-lbm-2.6.28-11-generic -I/lib/modules/2.6.28-11-generic/build/include -Iinclude2 -I/lib/modules/2.6.28-11-generic/build/include -I/lib/modules/2.6.28-11-generic/build/arch/x86/include -include /lib/modules/2.6.28-11-generic/build/include/linux/autoconf.h -Iubuntu/include -I/lib/modules/2.6.28-11-generic/build/ubuntu/include -I/lib/modules/2.6.28-11-generic/build/arch/x86/include/asm/mach-default '-DKBUILD_STR(s)=#s' '-DKBUILD_BASENAME=KBUILD_STR('`echo libLfS_specfs_a-specfs.o | sed -e 's,lib.*_a-,,;s,\.o,,;s,-,_,g'`')' -DMODULE -D__NO_VERSION__ -DEXPORT_SYMTAB -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -O2 -m32 -msoft-float -mregparm=3 -freg-struct-return -mpreferred-stack-boundary=2 -march=i586 -mtune=generic -Wa,-mtune=generic32 -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -fno-stack-protector -fno-omit-frame-pointer -fno-optimize-sibling-calls -Wdeclaration-after-statement -Wno-pointer-sign -fwrapv -ffreestanding -c -o libLfS_specfs_a-specfs.o `test -f 'src/kernel/specfs.c' || echo './'`src/kernel/specfs.c In file included from src/kernel/specfs.c:123: src/kernel/strspecfs.c: In function ‘specfs_init_cache’: src/kernel/strspecfs.c:1406: warning: passing argument 5 of ‘kmem_cache_create’ from incompatible pointer type src/kernel/strspecfs.c:1406: error: too many arguments to function ‘kmem_cache_create’ In file included from src/kernel/specfs.c:126: src/kernel/strlookup.c: In function ‘cdev_lookup’: src/kernel/strlookup.c:508: warning: format not a string literal and no format arguments src/kernel/strlookup.c:514: warning: format not a string literal and no format arguments src/kernel/strlookup.c:521: warning: format not a string literal and no format arguments src/kernel/strlookup.c: In function ‘cdrv_lookup’: src/kernel/strlookup.c:562: warning: format not a string literal and no format arguments src/kernel/strlookup.c: In function ‘fmod_lookup’: src/kernel/strlookup.c:604: warning: format not a string literal and no format arguments src/kernel/strlookup.c: In function ‘cdev_search’: src/kernel/strlookup.c:709: warning: format not a string literal and no format arguments src/kernel/strlookup.c:716: warning: format not a string literal and no format arguments src/kernel/strlookup.c: In function ‘fmod_search’: src/kernel/strlookup.c:768: warning: format not a string literal and no format arguments src/kernel/strlookup.c: In function ‘cmin_search’: src/kernel/strlookup.c:823: warning: format not a string literal and no format arguments src/kernel/strlookup.c:830: warning: format not a string literal and no format arguments src/kernel/strlookup.c:840: warning: format not a string literal and no format arguments src/kernel/strlookup.c:848: warning: format not a string literal and no format arguments In file included from src/kernel/specfs.c:129: src/kernel/strattach.c: In function ‘check_mnt’: src/kernel/strattach.c:131: error: ‘struct vfsmount’ has no member named ‘mnt_namespace’ src/kernel/strattach.c:131: error: ‘struct task_struct’ has no member named ‘namespace’ src/kernel/strattach.c: In function ‘do_fattach’: src/kernel/strattach.c:200: error: ‘struct nameidata’ has no member named ‘dentry’ src/kernel/strattach.c:200: error: ‘struct nameidata’ has no member named ‘mnt’ src/kernel/strattach.c:200: error: ‘struct nameidata’ has no member named ‘dentry’ src/kernel/strattach.c:203: error: ‘struct nameidata’ has no member named ‘mnt’ src/kernel/strattach.c:208: error: ‘struct nameidata’ has no member named ‘mnt’ src/kernel/strattach.c:208: error: ‘struct nameidata’ has no member named ‘mnt’ src/kernel/strattach.c:208: error: ‘struct nameidata’ has no member named ‘dentry’ src/kernel/strattach.c:226: error: implicit declaration of function ‘path_release’ src/kernel/strattach.c: In function ‘do_fdetach’: src/kernel/strattach.c:253: error: ‘struct nameidata’ has no member named ‘dentry’ src/kernel/strattach.c:253: error: ‘struct nameidata’ has no member named ‘mnt’ src/kernel/strattach.c:255: error: ‘struct nameidata’ has no member named ‘mnt’ src/kernel/strattach.c:257: error: ‘struct nameidata’ has no member named ‘dentry’ src/kernel/strattach.c:262: error: ‘struct nameidata’ has no member named ‘mnt’ src/kernel/strattach.c:265: error: ‘struct nameidata’ has no member named ‘mnt’ In file included from src/kernel/specfs.c:132: src/kernel/strpipe.c: In function ‘do_spipe’: src/kernel/strpipe.c:372: warning: assignment discards qualifiers from pointer target type make[4]: *** [libLfS_specfs_a-specfs.o] Error 1 make[4]: Leaving directory `/home/deddihp/dev/source/openss7-0.9.2.G/streams-0.9.2.4' make[3]: *** [all-recursive] Error 1 make[3]: Leaving directory `/home/deddihp/dev/source/openss7-0.9.2.G/streams-0.9.2.4' make[2]: *** [all] Error 2 make[2]: Leaving directory `/home/deddihp/dev/source/openss7-0.9.2.G/streams-0.9.2.4' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/deddihp/dev/source/openss7-0.9.2.G' make: *** [all] Error 2

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• Phone-book Database Help - Python

  - by IDOntWantThat

  I'm new to programming and have an assignment I've been working at for awhile. I understand defining functions and a lot of the basics but I'm kind of running into a brick wall at this point. I'm trying to figure this one out and don't really understand how the 'class' feature works yet. I'd appreciate any help with this one; also any help with some python resources that have can dummy down how/why classes are used. You've been going to work on a database project at work for sometime now. Your boss encourages you to program the database in Python. You disagree, arguing that Python is not a database language but your boss persists by providing the source code below for a sample telephone database. He asks you to do two things: Evaluate the existing source code and extend it to make it useful for managers in the firm. (You do not need a GUI interface, just work on the database aspects: data entry and retrieval - of course you must get the program to run or properly work He wants you to critically evaluate Python as a database tool. Import the sample code below into the Python IDLE and enhance it, run it and debug it. Add features to make this a more realistic database tool by providing for easy data entry and retrieval. import shelve import string UNKNOWN = 0 HOME = 1 WORK = 2 FAX = 3 CELL = 4 class phoneentry: def __init__(self, name = 'Unknown', number = 'Unknown', type = UNKNOWN): self.name = name self.number = number self.type = type # create string representation def __repr__(self): return('%s:%d' % ( self.name, self.type )) # fuzzy compare or two items def __cmp__(self, that): this = string.lower(str(self)) that = string.lower(that) if string.find(this, that) >= 0: return(0) return(cmp(this, that)) def showtype(self): if self.type == UNKNOWN: return('Unknown') if self.type == HOME: return('Home') if self.type == WORK: return('Work') if self.type == FAX: return('Fax') if self.type == CELL: return('Cellular') class phonedb: def __init__(self, dbname = 'phonedata'): self.dbname = dbname; self.shelve = shelve.open(self.dbname); def __del__(self): self.shelve.close() self.shelve = None def add(self, name, number, type = HOME): e = phoneentry(name, number, type) self.shelve[str(e)] = e def lookup(self, string): list = [] for key in self.shelve.keys(): e = self.shelve[key] if cmp(e, string) == 0: list.append(e) return(list) # if not being loaded as a module, run a small test if __name__ == '__main__': foo = phonedb() foo.add('Sean Reifschneider', '970-555-1111', HOME) foo.add('Sean Reifschneider', '970-555-2222', CELL) foo.add('Evelyn Mitchell', '970-555-1111', HOME) print 'First lookup:' for entry in foo.lookup('reifsch'): print '%-40s %s (%s)' % ( entry.name, entry.number, entry.showtype() ) print print 'Second lookup:' for entry in foo.lookup('e'): print '%-40s %s (%s)' % ( entry.name, entry.number, entry.showtype() ) I'm not sure if I'm on the right track but here is what I have so far: def openPB(): foo = phonedb() print 'Please select an option:' print '1 - Lookup' print '2 - Add' print '3 - Delete' print '4 - Quit' entry=int(raw_input('>> ')) if entry==1: namelookup=raw_input('Please enter a name: ') for entry in foo.lookup(namelookup): print '%-40s %s (%s)' % (entry.name, entry.number, entry.showtype() ) elif entry==2: name=raw_input('Name: ') number=raw_input('Number: ') showtype=input('Type (UNKNOWN, HOME, WORK, FAX, CELL): \n>> ') for entry in foo.add(name, number, showtype): #Trying to figure out this part print '%-40s %s (%s)'% (entry.name, entry.number, entry.showtype() ) elif entry==3: delname=raw_input('Please enter a name to delete: ') # #Trying to figure out this part print "Contact '%s' has been deleted" (delname) elif entry==4: print "Phone book is now closed" quit else: print "Your entry was not recognized." openPB() openPB()

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• TripleDES in Perl/PHP/ColdFusion

  - by Seidr

  Recently a problem arose regarding hooking up an API with a payment processor who were requesting a string to be encrypted to be used as a token, using the TripleDES standard. Our Applications run using ColdFusion, which has an Encrypt tag - that supports TripleDES - however the result we were getting back was not what the payment processor expected. First of all, here is the resulting token the payment processor were expecting. AYOF+kRtg239Mnyc8QIarw== And below is the snippet of ColdFusion we were using, and the resulting string. <!--- Coldfusion Crypt (here be monsters) ---> <cfset theKey="123412341234123412341234"> <cfset theString = "username=test123"> <cfset strEncodedEnc = Encrypt(theString, theKey, "DESEDE", "Base64")> <!--- resulting string(strEncodedEnc): tc/Jb7E9w+HpU2Yvn5dA7ILGmyNTQM0h ---> As you can see, this was not returning the string we were hoping for. Seeking a solution, we ditched ColdFusion for this process and attempted to reproduce the token in PHP. Now I'm aware that various languages implement encryption in different ways - for example in the past managing encryption between a C# application and PHP back-end, I've had to play about with padding in order to get the two to talk, but my experience has been that PHP generally behaves when it comes to encryption standards. Anyway, on to the PHP source we tried, and the resulting string. /* PHP Circus (here be Elephants) */ $theKey="123412341234123412341234"; $theString="username=test123"; $strEncodedEnc=base64_encode(mcrypt_ecb (MCRYPT_3DES, $theKey, $theString, MCRYPT_ENCRYPT)); /* resulting string(strEncodedEnc): sfiSu4mVggia8Ysw98x0uw== */ As you can plainly see, we've got another string that differs from both the string expected by the payment processor AND the one produced by ColdFusion. Cue head-against-wall integration techniques. After many to-and-fro communications with the payment processor (lots and lots of reps stating 'we can't help with coding issues, you must be doing it incorrectly, read the manual') we were finally escalated to someone with more than a couple of brain-cells to rub together, who was able to step back and actually look at and diagnose the issue. He agreed, our CF and PHP attempts were not resulting in the correct string. After a quick search, he also agreed that it was not neccesarily our source, but rather how the two languages implemented their vision of the TripleDES standard. Coming into the office this morning, we were met by an email with a snippet of source code, in Perl. This is was the code they were directly using on their end to produce the expected token. #!/usr/bin/perl # Perl Crypt Calamity (here be...something) use strict; use CGI; use MIME::Base64; use Crypt::TripleDES; my $cgi = CGI->new(); my $param = $cgi->Vars(); $param->{key} = "123412341234123412341234"; $param->{string} = "username=test123"; my $des = Crypt::TripleDES->new(); my $enc = $des->encrypt3($param->{string}, $param->{key}); $enc = encode_base64($enc); $enc =~ s/\n//gs; # resulting string (enc): AYOF+kRtg239Mnyc8QIarw== So, there we have it. Three languages, three implementations of what they quote in the documentation as TripleDES Standard Encryption, and three totally different resulting strings. My question is, from your experience of these three languages and their implementations of the TripleDES algorithm, have you been able to get any two of them to give the same response, and if so what tweaks to the code did you have to make in order to come to the result? I understand this is a very drawn out question, but I wanted to give clear and precise setting for each stage of testing that we had to perform. I'll also be performing some more investigatory work on this subject later, and will post any findings that I come up with to this question, so that others may avoid this headache.

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• Agile Testing Days 2012 – Day 2 – Learn through disagreement

  - by Chris George

  I think I was in the right place! During Day 1 I kept on reading tweets about Lean Coffee that has happened earlier that morning. It intrigued me and I figured in for a penny in for a pound, and set my alarm for 6:45am. Following the award night the night before, it was _really_ hard getting up when it went off, but I did and after a very early breakfast, set off for the 10 min walk to the Dorint. With Lean Coffee due to start at 07:30, I arrived at the hotel and made my way to one of the hotel bars. I soon realised I was in the right place as although the bar was empty, there was a table with post-it’s and pens! This MUST be the place! The premise of Lean Coffee is to have several small timeboxed discussions. Everyone writes down what they would like to discuss on post-its that are then briefly explained and submitted to the pile. Once everyone is done, the group dot-votes on the topics. The topics are then sorted by the dot vote counts and the discussions begin. Each discussion had 8 mins to start with, which meant it prevented the discussions getting off topic too much. After the time elapsed, the group had a vote whether to extend the discussion by a further 4 mins or move on. Several discussion were had around training, soft skills etc. The conversations were really interesting and there were quite a few good ideas. Overall it was a very enjoyable experience, certainly worth the early start! Make Melly Happy Following Lean Coffee was real coffee, and much needed that was! The first keynote of the day was “Let’s help Melly (Changing Work into Life)”by Jurgen Appelo. Draw lines to track happiness This was a very interesting presentation, and set the day nicely. The theme to the keynote was projects are about the people, more-so than the actual tasks. So he started by showing a photo of an employee ‘Melly’ who looked happy enough. He then stated that she looked happy but actually hated her job. In fact 50% of Americans hate their jobs. He went on to say that the world over 50% of people hate Americans their jobs. Jurgen talked about many ways to reduce the feedback cycle, not only of the project, but of the people management. Ideas such as Happiness doors, happiness tracking (drawing lines on a wall indicating your happiness for that day), kudo boxes (to compliment a colleague for good work). All of these (and more) ideas stimulate conversation amongst the team, lead to early detection of issues and investigation of solutions. I’ve massively simplified Jurgen’s keynote and have certainly not done it justice, so I will post a link to the video once it’s available. Following more coffee, the next talk was “How releasing faster changes testing” by Alexander Schwartz. This is a topic very close to our hearts at the moment, so I was eager to find out any juicy morsels that could help us achieve more frequent releases, and Alex did not disappoint. He started off by confirming something that I have been a firm believer in for a number of years now; adding more people can do more harm than good when trying to release. This is for a number of reasons, but just adding new people to a team at such a critical time can be more of a drain on resources than they add. The alternative is to have the whole team have shared responsibility for faster delivery. So the whole team is responsible for quality and testing. Obviously you will have the test engineers on the project who have the specialist skills, but there is no reason that the entire team cannot do exploratory testing on the product. This links nicely with the Developer Exploratory testing presented by Sigge on Day 1, and certainly something that my team are really striving towards. Focus on cycle time, so what can be done to reduce the time between dev cycles, release cycles. What’s stops a release, what delays a release? all good solid questions that can be answered. Alex suggested that perhaps the product doesn’t need to be fully tested. Doing less testing will reduce the cycle time therefore get the release out faster. He suggested a risk-based approach to planning what testing needs to happen. Reducing testing could have an impact on revenue if it causes harm to customers, so test the ‘right stuff’! Determine a set of tests that are ‘face saving’ or ‘smoke’ tests. These tests cover the core functionality of the product and aim to prevent major embarrassment if these areas were to fail! Amongst many other very good points, Alex suggested that a good approach would be to release after every new feature is added. So do a bit of work -> release, do some more work -> release. By releasing small increments of work, the impact on the customer of bugs being introduced is reduced. Red Pill, Blue Pill The second keynote of the day was “Adaptation and improvisation – but your weakness is not your technique” by Markus Gartner and proved to be another very good presentation. It started off quoting lines from the Matrix which relate to adapting, improvising, realisation and mastery. It has alot of nerds in the room smiling! Markus went on to explain how through deliberate practice ( and a lot of it!) you can achieve mastery, but then you never stop learning. Through methods such as code retreats, testing dojos, workshops you can continually improve and learn. The code retreat idea was one that interested me. It involved pairing to write an automated test for, say, 45 mins, they deleting all the code, finding a different partner and writing the same test again! This is another keynote where the video will speak louder than anything I can write here! Markus did elaborate on something that Lisa and Janet had touched on yesterday whilst busting the myth that “Testers Must Code”. Whilst it is true that to be a tester, you don’t need to code, it is becoming more common that there is this crossover happening where more testers are coding and more programmers are testing. Markus made a special distinction between programmers and developers as testers develop tests code so this helped to make that clear. “Extending Continuous Integration and TDD with Continuous Testing” by Jason Ayers was my next talk after lunch. We already do CI and a bit of TDD on my project team so I was interested to see what this continuous testing thing was all about and whether it would actually work for us. At the start of the presentation I was of the opinion that it just would not work for us because our tests are too slow, and that would be the case for many people. Jason started off by setting the scene and saying that those doing TDD spend between 10-15% of their time waiting for tests to run. This can be reduced by testing less often, reducing the test time but this then increases the risk of introduced bugs not being spotted quickly. Therefore, in comes Continuous Testing (CT). CT systems run your unit tests whenever you save some code and runs them in the background so you can continue working. This is a really nice idea, but to do this, your tests must be fast, independent and reliable. The latter two should be the case anyway, and the first is ideal, but hard! Jason makes several suggestions to make tests fast. Firstly keep the scope of the test small, secondly spin off any expensive tests into a suite which is run, perhaps, overnight or outside of the CT system at any rate. So this started to change my mind, perhaps we could re-engineer our tests, and continuously run the quick ones to give an element of coverage. This talk was very interesting and I’ve already tried a couple of the tools mentioned on our product (Mighty Moose and NCrunch). Sadly due to the way our solution is built, it currently doesn’t work, but we will look at whether we can make this work because this has the potential to be a mini-game-changer for us. Using the wrong data Gojko’s Hierarchy of Quality The final keynote of the day was “Reinventing software quality” by Gojko Adzic. He opened the talk with the statement “We’ve got quality wrong because we are using the wrong data”! Gojko then went on to explain that we should judge a bug by whether the customer cares about it, not by whether we think it’s important. Why spend time fixing issues that the customer just wouldn’t care about and releasing months later because of this? Surely it’s better to release now and get customer feedback? This was another reference to the idea of how it’s better to build the right thing wrong than the wrong thing right. Get feedback early to make sure you’re making the right thing. Gojko then showed something which was very analogous to Maslow’s heirachy of needs. Successful – does it contribute to the business? Useful – does it do what the user wants Usable – does it do what it’s supposed to without breaking Performant/Secure – is it secure/is the performance acceptable Deployable Functionally ok – can it be deployed without breaking? He then explained that User Stories should focus on change. In other words they should focus on the users needs, not the users process. Describe what the change will be, how that change will happen then measure it! Networking and Beer Following the day’s closing keynote, there were drinks and nibble for the ‘Networking’ evening. This was a great opportunity to talk to people. I find approaching strangers very uncomfortable but once again, when in Rome! Pete Walen and I had a long conversation about only fixing issues that the customer cares about versus fixing issues that make you proud of your software! Without saying much, and asking the right questions, Pete made me re-evaluate my thoughts on the matter. Clever, very clever!  Oh and he ‘bought’ me a beer! My Takeaway Triple from Day 2: release small and release often to minimize issues creeping in and get faster feedback from ‘the real world’ Focus on issues that the customers care about, not what we think is important It’s okay to disagree with someone, even if they are well respected agile testing gurus, that’s how discussion and learning happens!  

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• Build a gem with native extension (Gem::Installer::ExtensionBuildError)

  - by Arnaud Leymet

  I have the following configuration: uname -a : Linux 2.6.24.2 i686 GNU/Linux (Ubuntu) ruby -v : ruby 1.9.0 (2007-12-25 revision 14709) [i486-linux] rails -v : Rails 3.0.0.beta3 gem -v : 1.3.5 rake --version : rake, version 0.8.7 make -v : GNU Make 3.81 gem env : RUBYGEMS VERSION: 1.3.5 RUBY VERSION: 1.9.0 (2007-12-25 patchlevel 0) [i486-linux] INSTALLATION DIRECTORY: /usr/lib/ruby1.9/gems/1.9.0 RUBY EXECUTABLE: /usr/bin/ruby1.9 EXECUTABLE DIRECTORY: /usr/bin RUBYGEMS PLATFORMS: ruby x86-linux GEM PATHS: /usr/lib/ruby1.9/gems/1.9.0 /root/.gem/ruby/1.9.0 GEM CONFIGURATION: :update_sources = true :verbose = true :benchmark = false :backtrace = false :bulk_threshold = 1000 REMOTE SOURCES: http://gems.rubyforge.org/ And when I try this simple command: gem install nokogiri Here is what I get: # gem install nokogiri Building native extensions. This could take a while... ERROR: Error installing nokogiri: ERROR: Failed to build gem native extension. /usr/bin/ruby1.9 extconf.rb checking for iconv.h in /opt/local/include/,/opt/local/include/libxml2,/opt/local/include,/opt/local/include,/opt/local/include/libxml2,/usr/local/include,/usr/local/include/libxml2,/usr/include,/usr/include/libxml2,/usr/include,/usr/include/libxml2... yes checking for libxml/parser.h in /opt/local/include/,/opt/local/include/libxml2,/opt/local/include,/opt/local/include,/opt/local/include/libxml2,/usr/local/include,/usr/local/include/libxml2,/usr/include,/usr/include/libxml2,/usr/include,/usr/include/libxml2... yes checking for libxslt/xslt.h in /opt/local/include/,/opt/local/include/libxml2,/opt/local/include,/opt/local/include,/opt/local/include/libxml2,/usr/local/include,/usr/local/include/libxml2,/usr/include,/usr/include/libxml2,/usr/include,/usr/include/libxml2... yes checking for libexslt/exslt.h in /opt/local/include/,/opt/local/include/libxml2,/opt/local/include,/opt/local/include,/opt/local/include/libxml2,/usr/local/include,/usr/local/include/libxml2,/usr/include,/usr/include/libxml2,/usr/include,/usr/include/libxml2... yes checking for xmlParseDoc() in -lxml2... yes checking for xsltParseStylesheetDoc() in -lxslt... yes checking for exsltFuncRegister() in -lexslt... yes checking for xmlRelaxNGSetParserStructuredErrors()... yes checking for xmlRelaxNGSetParserStructuredErrors()... yes checking for xmlRelaxNGSetValidStructuredErrors()... yes checking for xmlSchemaSetValidStructuredErrors()... yes checking for xmlSchemaSetParserStructuredErrors()... yes creating Makefile make cc -I. -I/usr/include/libxml2 -I/usr/include -I/usr/include/ruby-1.9.0/i486-linux -I/usr/include/ruby-1.9.0 -I. -DHAVE_XMLRELAXNGSETPARSERSTRUCTUREDERRORS -DHAVE_XMLRELAXNGSETPARSERSTRUCTUREDERRORS -DHAVE_XMLRELAXNGSETVALIDSTRUCTUREDERRORS -DHAVE_XMLSCHEMASETVALIDSTRUCTUREDERRORS -DHAVE_XMLSCHEMASETPARSERSTRUCTUREDERRORS -I/opt/local/include/ -I/opt/local/include/libxml2 -I/opt/local/include -D_FILE_OFFSET_BITS=64 -fPIC -fno-strict-aliasing -g -fPIC -g -DXP_UNIX -O3 -Wall -Wcast-qual -Wwrite-strings -Wconversion -Wmissing-noreturn -Winline -o xml_document_fragment.o -c xml_document_fragment.c In the included file starting at ./nokogiri.h:75, From ./xml_document_fragment.h:4, From xml_document_fragment.c:1: ./xml_document.h:5:16: error: st.h : No file or folder with this type make: *** [xml_document_fragment.o] Error 1 Gem files will remain installed in /usr/lib/ruby1.9/gems/1.9.0/gems/nokogiri-1.4.1 for inspection. Results logged to /usr/lib/ruby1.9/gems/1.9.0/gems/nokogiri-1.4.1/ext/nokogiri/gem_make.out The "gem_make.out" file contains the exact same information as described above. If I try with another gem: gem install gherkin Here is what I get: u# gem install gherkin Building native extensions. This could take a while... ERROR: Error installing gherkin: ERROR: Failed to build gem native extension. /usr/bin/ruby1.9 extconf.rb checking for main() in -lc... yes creating Makefile make cc -I. -I/usr/include/ruby-1.9.0/i486-linux -I/usr/include/ruby-1.9.0 -I. -D_FILE_OFFSET_BITS=64 -fPIC -fno-strict-aliasing -g -fPIC -o gherkin_lexer_ar.o -c gherkin_lexer_ar.c /Users/aslakhellesoy/scm/gherkin/tasks/../ragel/i18n/ar.c.rl:11:16: erreur: re.h : Aucun fichier ou dossier de ce type make: *** [gherkin_lexer_ar.o] Erreur 1 Gem files will remain installed in /usr/lib/ruby1.9/gems/1.9.0/gems/gherkin-1.0.30 for inspection. Results logged to /usr/lib/ruby1.9/gems/1.9.0/gems/gherkin-1.0.30/ext/gherkin_lexer_ar/gem_make.out In fact whenever I try to install a gem with native extension, I get the same type of error. Would that ring a bell to anyone?

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• DoubleBuffering in Java

  - by DDP

  Hello there, I'm having some trouble implementing DoubleBuffer into my program. Before you faint from the wall of text, you should know that a lot of it is there just in case you need to know. The actual place where I think I'm having problems is in one method. I've recently looked up a tutorial on the gpwiki about double buffering, and decided to try and implement the code they had into the code I have that I'm trying to implement doublebuffer in. I get the following error: "java.lang.IllegalStateException: Component must have a valid peer". I don't know if it makes any difference if you know it or not, but the following is the code with the main method. This is just a Frame that displays the ChronosDisplay class inside it. I omitted irrelevant code with "..." public class CDM extends JFrame { public CDM(String str) { super("CD:M - "+str); try { ... ChronosDisplay theGame = new ChronosDisplay(str); ((Component)theGame).setFocusable(true); add(theGame); } catch(Exception e) { System.out.println("CDM ERROR: " +e); } } public static void main( String args[] ) { CDM run = new CDM("DP_Mini"); } } Here is the code where I think the problem resides (I think the problem is in the paint() method). This class is displayed in the CDM class public class ChronosDisplay extends Canvas implements Runnable { String mapName; public ChronosDisplay (String str) { mapName = str; new Thread(this).start(); setVisible(true); createBufferStrategy(2); } public void paint( Graphics window ) { BufferStrategy b = getBufferStrategy(); Graphics g = null; window.setColor(Color.white); try { g = b.getDrawGraphics(); paintMap(g); paintUnits(g); paintBullets(g); } finally { g.dispose(); } b.show(); Toolkit.getDefaultToolkit().sync(); } public void paintMap( Graphics window ) { TowerMap m = new TowerMap(); try { m = new TowerMap(mapName); for(int x=0; x<m.getRows()*50; x+=50) { for(int y = 0; y<m.getCols()*50; y+=50) { int tileType = m.getLocation(x/50,y/50); Image img; if(tileType == 0) { Tile0 t = new Tile0(x,y); t.draw(window); } ...// More similar if statements for other integers } catch(Exception e) ... } ...// Additional methods not shown here public void run() { try { while(true) { Thread.currentThread().sleep(20); repaint(); } } catch(Exception e) ... } } If you're curious (I doubt it matters), the draw() method in the Tile0 class is: public void draw( Graphics window ) { window.drawImage(img,getX(),getY(),50,50,null); } Any pointers, tips, or solutions are greatly appreciated. Thanks for your time! :D

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• Anyone willing to help out a javascript n00b? :-)

  - by Splynx

  Since I am asking for a lot, and know it, the following is a wall of text for those who might show some interest and want to know a little before offering their help to me. First a little about my level of programming skills, and a little about what I ask for. Where I'm at: I am not totally new to Javascript, and have dabbled a little with PHP earlier - well have dabbled a lot with PHP in fact, but never got good at it because I program alone. And I have until now never used forums to get help etc. other that searching to see if anyone else had my problem before and what the solution was. So I am not a intuitive or talented programmer, I'm more of a very maticulate programmer and you would be surprised how far you can get with if else... (ok that's a joke hehe). My solutions are usually (I am guessing here) not the best ones - and slow I take it, and the code is usually too long and I have to look up most of the stuff I use (really a lot of it is not done in "freehand"). I have a LOT of experience with HTML and CSS, and have always done well formed markup, as well as I am really into x-browsing and always require that my work validates when it's done. I also worry about optimizing a lot, and work with sprites for images, minimize the number of http requests etc, using H1,H2 etc. where it is logically correct, as well as use the correct elements and not just div span or p it... So because I am a workhorse and very maticulate I can actually pull off some quite "advanced" features, but it's always the basics that bite me in the end. Not fully understanding the syntax and so on usually gives me problems. Have recently discovered jQuery - wich is a lot of fun.... But I want to use it for the DOM node manipulation/handling only. As I mentioned I worry about optimizing, and jQuery used for everything seems... well not optimal, it strikes me as doing it yourself when possible is faster than accesing another script that may take a whole lot of other considerations into perspective when handling your variables and objects (and I am just guessing here since I as explained know nothing). So thats where I'm at... As mentioned I just started with javascript for "real" so I do not have much to show, but at the end of my WOT you can see two unfinisheded scripts I have made so you can see where I'm at roughly - just check out the URL without the /feedback.html for the second example (I am only allowed to post 1 link since I am also a SO n00b) (and for those rushing over to a validation service, remember I wrote "when it's done"...) What I ask for: I am figuring this... I have a piece of code I am working on at the moment, and this little project has taught me a whole lot already, and I have "grown" a lot as a javascript programmer. If I add a whole lot of comments to the script, and explain what it is intended to do, will you then show me where: I am writing incorrect code - making mistakes Where/how my code could be more optimal Where I am just simply being a muppet The code I want to use as the background for the tuition is the one here http://projects.1000monkeys.dk/feedback.html Use firebug and have a quick look see...

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• which control in vs08 aspx c# will be able to take html tags as input and display it formatted accor

  - by user287745

  i asked a few questions regarding this and got answers that indicate i will have to make an costum build editor using ,markdown, .... to achieve something like stackoverflow.com/questions/ask page. there is time limitation and the requirements are that much, i have to achieve 1) allow users to using html tags when giving input 2) save that complete input to sql db 3) display the data in db withing a contol which renders the formatting as the tags specify. i am aware label and literal controls support html tags, the problem is how to allow the user to input the textbox does not seem the support html tags? thank you Need help in implementing the affect of the WRITE A NEW POST On stackoverflow.com <%--The editor--% <asp:UpdatePanel ID="UpdatePanel7" runat="server"> <ContentTemplate> <asp:Label ID="Label4" runat="server" Text="Label"></asp:Label> <div id="textchanging" onkeyup="textoftextbox('TextBox3'); return false;"> <asp:TextBox ID="TextBox3" runat="server" CausesValidation="True" ></asp:TextBox> </div> <%-- OnTextChanged="textoftextbox('TextBox3'); return false;" gives too man literals error. --%> <asp:Button ID="Button6" runat="server" Text="Post The Comment, The New, Write on Wall" onclick="Button6_Click" /> <asp:Label ID="Label2" runat="server" Text="Label"></asp:Label> <asp:TextBox ID="TextBox4" runat="server" CausesValidation="True"></asp:TextBox> <asp:Literal ID="Literal2" runat="server" Text="this must change" here comes the div <div id="displayingarea" runat="server">This area will change</div> </ContentTemplate> </asp:UpdatePanel> <%--The editor ends--%> protected void Button6_Click(object sender, EventArgs e) { Label3.Text = displayingarea.InnerHtml; } As you see, I have implemented the effect of typing text in textbox which appears as a reflection in the div WITH FULLY FORMATTED TEXT ACCORDIG TO THE HTML TAGS USED The textbox does not allow html! Well the text box doesnot have too, script just extracts what is typed, within letting the server know. The html of the div tag also changes as typed in textbox. Now, There is a “post” button within an update plane a avoid full post back of page What I needis when the button is clicked on the value withing the div tag “innerhtml” is passed on to the label. Yes I know the chnages are only made on the client side, So when the button click event occurs the server is not aware of the new data within the div tag, Therefore the server assign the original html withing the div to the lab. Need help to overcome this, How is it that what we enter text in the textbox press the button with coding like label1.text=textbox1.text; and it works even in update panel, but the aabove code for extracting innerhtml typed at users end similar to yping in textbox does not work?

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• CodePlex Daily Summary for Sunday, November 25, 2012

  CodePlex Daily Summary for Sunday, November 25, 2012Popular ReleasesMath.NET Numerics: Math.NET Numerics v2.3.0: Common: Continued major linear algebra storage rework, in this release focusing on vectors (previous release was on matrices) Static CreateRandom for all dense matrix and vector types Thin QR decomposition (in additin to existing full QR) Consistent static Sample methods for continuous and discrete distributions (was previously missing on a few) Portable build adds support for WP8 (.Net 4.0 and higher, SL5, WP8 and .NET for Windows Store apps) Various bug, performance and usability ...ExtJS based ASP.NET 2.0 Controls: FineUI v3.2.1: +2012-11-25 v3.2.1 +????????。 -MenuCheckBox?CheckedChanged??????，??????????。 -???????window.IDS??????????????。 -?????（??TabCollection，ControlBaseCollection）???，????????????????。 +Grid??。 -??SelectAllRows??。 -??PageItems??，?????????????，?????、??、?????。 -????grid/gridpageitems.aspx、grid/gridpageitemsrowexpander.aspx、grid/gridpageitems_pagesize.aspx。 -???????????????????。 -??ExpandAllRowExpanders??，?????????????????（grid/gridrowexpanderexpandall2.aspx）。 -??????ExpandRowExpande...VidCoder: 1.4.9 Beta: Updated HandBrake core to SVN 5079. Fixed crashes when encoding DVDs with title gaps.ZXing.Net: ZXing.Net 0.10.0.0: On the way to a release 1.0 the API should be stable now with this version. sync with rev. 2521 of the java version windows phone 8 assemblies improvements and fixesCharmBar: Windows 8 Charm Bar for Windows 7: Windows 8 Charm Bar for Windows 7BlackJumboDog: Ver5.7.3: 2012.11.24 Ver5.7.3 (1)SMTP???????、?????????、??????????????????????? (2)?????????、?????????????????????????? (3)DNS???????CNAME????CNAME????????????????? (4)DNS????????????TTL???????? (5)???????????????????????、?????????????????? (6)???????????????????????????????TEncoder: 3.1: -Added: Turkish translation (Translators, please see "To translators.txt") -Added: Profiles are now stored in different files under "Profiles" folder -Added: User created Profiles will be saved in a differen directory -Added: Custom video and audio options to profiles -Added: Container options to profiles -Added: Parent folder of input file will be created in the output folder -Added: Option to use 32bit FFmpeg eventhough the OS is 64bit -Added: New skin "Mint" -Fixed: FFMpeg could not open A...Liberty: v3.4.3.0 Release 23rd November 2012: Change Log -Added -H4 A dialog which gives further instructions when attempting to open a "Halo 4 Data" file -H4 Added a short note to the weapon editor stating that dropping your weapons will cap their ammo -Reach Edit the world's gravity -Reach Fine invincibility controls in the object editor -Reach Edit object velocity -Reach Change the teams of AI bipeds and vehicles -Reach Enable/disable fall damage on the biped editor screen -Reach Make AIs deaf and/or blind in the objec...Umbraco CMS: Umbraco 4.11.0: NugetNuGet BlogRead the release blog post for 4.11.0. Whats new50 bugfixes (see the issue tracker for a complete list) Read the documentation for the MVC bits. Breaking changesGetPropertyValue now returns an object, not a string (only affects upgrades from 4.10.x to 4.11.0) NoteIf you need Courier use the release candidate (as of build 26). The code editor has been greatly improved, but is sometimes problematic in Internet Explorer 9 and lower. Previously it was just disabled for IE and...Audio Pitch & Shift: Audio Pitch And Shift 5.1.0.3: Fixed supported files list on open dialog (added .pls and .m3u) Impulse Media Player splash message (can be disabled anyway)WiX Toolset: WiX v3.7 RC: WiX v3.7 RC (3.7.1119.0) provides feature complete Bundle update and reference tracking plus several bug fixes. For more information see Rob's blog post about the release: http://robmensching.com/blog/posts/2012/11/20/WiX-v3.7-Release-Candidate-availablePicturethrill: Version 2.11.20.0: Fixed up Bing image provider on Windows 8Excel AddIn to reset the last worksheet cell: XSFormatCleaner.xla: Modified the commandbar code to use CommandBar IDs instead of English names.Json.NET: Json.NET 4.5 Release 11: New feature - Added ITraceWriter, MemoryTraceWriter, DiagnosticsTraceWriter New feature - Added StringEscapeHandling with options to escape HTML and non-ASCII characters New feature - Added non-generic JToken.ToObject methods New feature - Deserialize ISet<T> properties as HashSet<T> New feature - Added implicit conversions for Uri, TimeSpan, Guid New feature - Missing byte, char, Guid, TimeSpan and Uri explicit conversion operators added to JToken New feature - Special case...HigLabo: HigLabo_20121119: HigLabo_2012111 --HigLabo.Mail-- Modify bug fix of ExecuteAppend method. Add ExecuteXList method to ImapClient class. --HigLabo.Net.WindowsLive-- Add AsyncCall to WindowsLiveClient class.SharePoint CAML Extensions: Version 1.1: Beta version! <Membership>, <Today/>, <Now/> and <UserID /> tags are not supported!mojoPortal: 2.3.9.4: see release notes on mojoportal.com http://www.mojoportal.com/mojoportal-2394-released Note that we have separate deployment packages for .NET 3.5 and .NET 4.0, but we recommend you to use .NET 4, we will probably drop support for .NET 3.5 once .NET 4.5 is available The deployment package downloads on this page are pre-compiled and ready for production deployment, they contain no C# source code and are not intended for use in Visual Studio. To download the source code see getting the lates...Keleyi: keleyi-1.1.0: ????： .NET Framework 4.0 ??：MD5??，?????IP??（??????），????? www.keleyi.com keleyi.codeplex.comHoliday Calendar: Calendar Control: Month navigation introduced.NDateTime: Version 1.0: This is the first releaseNew Projects.NET vFaceWall: .NET vFaceWall is autility script written in asp.net which allows developer to build next generation facebook wall style user profiles for asp.net websites.29th Infantry Division Engineer Corps: Code repository and project management hub for the 29th Infantry Division's Engineer Corps.A.M. Lost: A.M. Lost is game project developed during the GameDevParty Jam 3 event (23-24-25 november 2012).ABAP BLOG MIKE: ABAP blog AgileNETSlayer: Agile.Net Deobfuscator, supports all obfuscation methods.BERP Games: This project site contains XNA game development concepts and software produced by BERP Games.CFileUpload: This project will let you upload files with progress bar, without using Flash, HTML5 or similar technologies that the user's browser might not have. CharmBar: Windows 8 Charm Bar is a application that works just like the Windows 8 CharmBar. The word charmbar, the Windows 8 Logo are trademarks of Microsoft Corporation.Confidentialité des données: Développer une application permettant de faciliter la mise en œuvre, l’utilisation et la gestion de ces outils, en exploitant les API .NET.End of control: Project has not been started yet. Just absorbing attentions.Enhanced XML Search: Easy and fastest methods to manipulate XML Data.Exchange Automatic Replies Administrator: Exchange Automatic Replies Administrator is a PowerShell GUI tool for Helpdesk and Sysadmins to set a users' Out-Of-Office without using the command line.File Explorer for WPF: FileExplorer is a WPF control that's emulate the Windows Explorer, it supports both FIleSystem and non-FileSystem class.ForcePlot: Using brute force, plots any difficult equation even some popular software cannot plot. Currently supports 2D graphs, trigonometric and logarithmic functions.Game Dev: Currently in ideas phaseGroupEmulationEMK11: Discussion and sharing of member data Group Emulation Engineering Mechanical 2011Jenkins CI: Views, Jobs, Build status and color. mvcMusicOnLine: mvcMusicOnLinemy own site project no 1: still testing...Nauplius.KeyStore: Provides secure application key storage backed by SQL 2008 and Active Directory.Noctl Library: Noctl is a C# multiplatform Library.open Archive Mediator: High-performance middle-ware for process historiansOpen Source Game - Prince's Revenge: Open Source Game.PackToKindle: Project allow to send folder content to your kindle. Functionality is the same as the official SendToKindle application, but this project is designed to use froPunkPong: PunkPong is an open source "Pong" alike game totally written in DHTML (JavaScript, CSS and HTML) that uses keyboard or mouse. This cross-platform and cross-browser game was tested under BeOS, Linux, NetBSD, OpenBSD, FreeBSD, Windows and others.Quick Data Processor: A simple and quick data processor for csv files.SFProject: It'll be a game at some pointsilverlight ? flash? policy ??: silverlight? flash? policy socket server? ??Universe.WCF.Behaviors: Universe.WCF.Behaviors provides behaviors: - Easy migration from Remoting - Transparent delivery - Traffic Statistics - WCF Streaming Adaptor for BinaryWriter and TextWriter - etc WowDotNetAPI for Silverlight: Silverlight class library implementation of Briam Ramos World Of Warcraft WowDotNetAPI .NET library on GitHub ( https://github.com/briandek/WowDotNetAPI ) C# .Net library to access the new World of Warcraft Community Platform API.WP7NUMConvert: A really simple project to create a small library for number conversions in multiple formats. Written in VB for Windows PhoneWPF CodeEditor: The Dev Tools project is intended to contain a set of features, tools & controls useful for development purposes.

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• C++ std::vector problems

  - by Faur Ioan-Aurel

  For 2 days i tried to explain myself some of the things that are happening in my c++ code,and i can't get a good explanation.I must say that i'm more a java programmer.Long time i used quite a bit the C language but i guess Java erased those skills and now i'm hitting a wall trying to port a few classes from java to c++. So let's say that we have this 2 classes: class ForwardNetwork { protected: ForwardLayer* inputLayer; ForwardLayer* outputLayer; vector<ForwardLayer* > layers; public: void ForwardNetwork::getLayers(std::vector< ForwardLayer* >& result ) { for(int i= 0 ;i< layers.size(); i++){ ForwardLayer* lay = dynamic_cast<ForwardLayer*>(this->layers.at(i)); if(lay != NULL) result.push_back(lay); else cout << "Layer at#" << i << " is null" << endl; } } void ForwardNetwork::addLayer ( ForwardLayer* layer ) { if(layer != NULL) cout << "Before push layer is not null" << endl; //setup the forward and back pointer if ( this->outputLayer != NULL ) { layer->setPrevious ( this->outputLayer ); this->outputLayer->setNext ( layer ); } //update the input layer and outputLayer variables if ( this->layers.size() == 0 ) this->inputLayer = this->outputLayer = layer; else this->outputLayer = layer; //push layer in vector this->layers.push_back ( layer ); for(int i = 0; i< layers.size();i++) if(layers[i] != NULL) cout << "Check::Layer[" << i << "] is not null!" << endl; } }; Second class: class Backpropagation : public Train { public: Backpropagation::Backpropagation ( FeedForwardNetwork* network ){ this->network = network; vector<FeedforwardLayer*> vec; network->getLayers(vec); } }; Now if i add from main() some layers into network via addLayer(..) method it's all good.My vector is just as it should.But after i call Backpropagation() constructor with a network object ,when i enter getLayers(), some of my objects from vector have their address set to NULL(they are randomly chosen:for example if i run my app once with 3 layer's into vector ,the first object from vector is null.If i run it second time first 2 objects are null,third time just first object null and so on). Now i can't explain why this is happening.I must say that all the objects that should be in vector they also live inside the network and they are not NULL; This happens everywhere after i done with addLayer() so not just in the getLayers(). I cant get a good grasp to this problem.I thought first that i might modify my vector.But i can't find such thing. Also why if the reference from vector is NULL ,the reference that lives inside ForwardNetwork as a linked list (inputLayer and outputLayer) is not NULL? I must ask for your help.Please ,if you have some advices don't hesitate! PS: as compiler i use g++ part of gcc 4.6.1 under ubuntu 11.10

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• Why does this valid Tkinter code crash when mixed with a bit of PyWin32?

  - by Erlog

  So I'm making a very small program for personal use in tkinter, and I've run into a really strange wall. I'm mixing tkinter with the pywin32 bindings because I really hate everything to do with the syntax and naming conventions of pywin32, and it feels like tkinter gets more done with far less code. The strangeness is happening in the transition between the pywin32 clipboard watching and my program's reaction to it in tkinter. My window and all its controls are being handled in tkinter. The pywin32 bindings are doing clipboard watching and clipboard access when the clipboard changes. From what I've gathered about the way the clipboard watching pieces of pywin32 work, you can make it work with anything you want as long as you provide pywin32 with the hwnd value of your window. I'm doing that part, and it works when the program first starts. It just doesn't seem to work when the clipboard changes. When the program launches, it grabs the clipboard and puts it into the search box and edit box just fine. When the clipboard is modified, the event I want to fire off is firing off...except that event that totally worked before when the program launched is now causing a weird hang instead of doing what it's supposed to do. I can print the clipboard contents to stdout all I want if the clipboard changes, but not put that same data into a tkinter widget. It only hangs like that if it starts to interact with any of my tkinter widgets after being fired off by a clipboard change notification. It feels like there's some pywin32 etiquette I've missed in adapting the clipboard-watching sample code I was using over to my tkinter-using program. Tkinter apparently doesn't like to produce stack traces or error messages, and I can't really even begin to know what to look for trying to debug it with pdb. Here's the code: #coding: utf-8 #Clipboard watching cribbed from ## {{{ http://code.activestate.com/recipes/355593/ (r1) import pdb from Tkinter import * import win32clipboard import win32api import win32gui import win32con import win32clipboard def force_unicode(object, encoding="utf-8"): if isinstance(object, basestring) and not isinstance(object, unicode): object = unicode(object, encoding) return object class Application(Frame): def __init__(self, master=None): self.master = master Frame.__init__(self, master) self.pack() self.createWidgets() self.hwnd = self.winfo_id() self.nextWnd = None self.first = True self.oldWndProc = win32gui.SetWindowLong(self.hwnd, win32con.GWL_WNDPROC, self.MyWndProc) try: self.nextWnd = win32clipboard.SetClipboardViewer(self.hwnd) except win32api.error: if win32api.GetLastError () == 0: # information that there is no other window in chain pass else: raise self.update_search_box() self.word_search() def word_search(self): #pdb.set_trace() term = self.searchbox.get() self.resultsbox.insert(END, term) def update_search_box(self): clipboardtext = "" if win32clipboard.IsClipboardFormatAvailable(win32clipboard.CF_TEXT): win32clipboard.OpenClipboard() clipboardtext = win32clipboard.GetClipboardData() win32clipboard.CloseClipboard() if clipboardtext != "": self.searchbox.delete(0,END) clipboardtext = force_unicode(clipboardtext) self.searchbox.insert(0, clipboardtext) def createWidgets(self): self.button = Button(self) self.button["text"] = "Search" self.button["command"] = self.word_search self.searchbox = Entry(self) self.resultsbox = Text(self) #Pack everything down here for "easy" layout changes later self.searchbox.pack() self.button.pack() self.resultsbox.pack() def MyWndProc (self, hWnd, msg, wParam, lParam): if msg == win32con.WM_CHANGECBCHAIN: self.OnChangeCBChain(msg, wParam, lParam) elif msg == win32con.WM_DRAWCLIPBOARD: self.OnDrawClipboard(msg, wParam, lParam) # Restore the old WndProc. Notice the use of win32api # instead of win32gui here. This is to avoid an error due to # not passing a callable object. if msg == win32con.WM_DESTROY: if self.nextWnd: win32clipboard.ChangeClipboardChain (self.hwnd, self.nextWnd) else: win32clipboard.ChangeClipboardChain (self.hwnd, 0) win32api.SetWindowLong(self.hwnd, win32con.GWL_WNDPROC, self.oldWndProc) # Pass all messages (in this case, yours may be different) on # to the original WndProc return win32gui.CallWindowProc(self.oldWndProc, hWnd, msg, wParam, lParam) def OnChangeCBChain (self, msg, wParam, lParam): if self.nextWnd == wParam: # repair the chain self.nextWnd = lParam if self.nextWnd: # pass the message to the next window in chain win32api.SendMessage (self.nextWnd, msg, wParam, lParam) def OnDrawClipboard (self, msg, wParam, lParam): if self.first: self.first = False else: #print "changed" self.word_search() #self.word_search() if self.nextWnd: # pass the message to the next window in chain win32api.SendMessage(self.nextWnd, msg, wParam, lParam) if __name__ == "__main__": root = Tk() app = Application(master=root) app.mainloop() root.destroy()

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• syntax error in sql query?

  - by user1550588

  I want to create some tables in database so for that i wright some queries to create table. but i got an error "there was a syntax error in your sql statement". I check all my queries but i am not able to find what syntax i wright wrong. here i attached my sql queries please told me what is wrong with queries. Thanks in advance. CREATE TABLE "WATER&SEWAGE" { "CUSTOMER_ID" VARCHAR, "POTABLE_WATER" VARCHAR, "HOT_WATER" VARCHAR, "SAFETY" VARCHAR, "T/P_VALVE+EXT" VARCHAR, "HEATER_TYPE" VARCHAR, "GAS_VENT_CONDITION" VARCHAR, "FIRE_BOX_CONDITION" VARCHAR, "PRESSURE" VARCHAR, "BACK_FLOW" VARCHAR, "PLUMBING_CONDITION" VARCHAR, "CABINET_CONDITION" VARCHAR, "3_COMP_SINK" VARCHAR, "WATER_HEATER" VARCHAR, "CLEAN_OUT_CONDITION" VARCHAR, "FLOOR_DRAIN" VARCHAR, "FLOOR_SINK" VARCHAR, "MAINTANANCE" VARCHAR, "COMMENTS" VARCHAR, "EVIDENCE_PHOTOS" VARCHAR) CREATE TABLE "TIME_AND_TETMPERATURE_REL" ("CUSTOMER_ID" INTEGER, "THERMOMTE_AVAILABLE" VARCHAR, "THERMO_TYPE" VARCHAR, "COLD_TEMP" VARCHAR, "FOOD_TYPE1" VARCHAR, "PROPER_COOLING" VARCHAR, "FOOD_TYPE2" VARCHAR, "COMPLIANCE" VARCHAR, "FOOD_TYPE3" VARCHAR, "TPHC" VARCHAR, "HACCP" VARCHAR, "HOT_HOLDING_TEMP" VARCHAR, "FOOD_TYPE4" VARCHAR, "HOT_TEMP" VARCHAR, "FOOD_TYPE5" VARCHAR, "IMPROPER_REHEATING" VARCHAR, "FOOD_TYPE6" VARCHAR, "FOOD_OUT_OF_TEMP" VARCHAR, "WRITTEN_PLAN_FILES" VARCHAR, "EMPLOYEE_KNOWLEDGE" VARCHAR, "TIME_KEEPING_METHODS" VARCHAR, "HACCP_METHODS" VARCHAR, "CALIBRATION" VARCHAR, "COOKING_TEMP" VARCHAR, "EQUIP_CONDITION" VARCHAR, "COMMENTS" VARCHAR, "EVIDENCE_PHOTOS" VARCHAR) CREATE TABLE "PROTECTION_FROM_CONTAMINATION" ("FOOD_ADULTERATION" VARCHAR, "FOOD_SPOILAGE" VARCHAR, "CONTAMINATION" VARCHAR, "FOOD_STORAGE" VARCHAR, "REFRIGRATORS" VARCHAR, "FREEZER" VARCHAR, "FIFO" VARCHAR, "DRY" VARCHAR, "DISHWASHING_CHEMICALS" VARCHAR, "CLEANING" VARCHAR, "SANITIZER" VARCHAR, "SUPPLY_EQUIPMENT" VARCHAR, "PESTICIDES" VARCHAR, "COMMENTS" VARCHAR, "EVIDENCE_PHOTOS" VARCHAR, "CUSTOMER_ID" INTEGER) CREATE TABLE "PHYSICAL_FACILITIES_2" ("CUSTOMER_ID" VARCHAR, "CEILING" VARCHAR, "WINDOWS" VARCHAR, "SPOILS_STORAGE" VARCHAR, "DOORS" VARCHAR, "PERSONAL_LOCKERS" VARCHAR, "FLOORS" VARCHAR, "CONDITION" VARCHAR, "HANDICAP" VARCHAR, "SELF_CLOSING_ROOM" VARCHAR, "TOILETS" VARCHAR, "TOILET_PAPER" VARCHAR, "TOILET_CONDITION" VARCHAR, "VENTILATION_CONDITION" VARCHAR, "MENS" VARCHAR, "MEN'S_VENTILATION" VARCHAR, "MEN'S_FLOOR_DRAWN" VARCHAR, "MEN'S_TOILET_STALLS" VARCHAR, "MEN'S_HAND_SINK" VARCHAR, "MEN'S_TOWELS" VARCHAR, "WOMEN'S" VARCHAR, "WOMEN'S_VENTILATION" VARCHAR, "WOMEN'S_FLOOR_DRAWN" VARCHAR, "WOMEN'S_TOILET_STALLS" VARCHAR, "WOMEN'S_HAND_SINK" VARCHAR, "WOMEN'S_TOWELS" VARCHAR, "COMMENTS" VARCHAR, "EVIDENCE_PHOTOS" VARCHAR) CREATE TABLE "PHYSICAL_FACILITIES_1" ("CUSTOMER_ID" VARCHAR, "LIGHTNING" VARCHAR, "KITCHEN" VARCHAR, "STORAGE" VARCHAR, "REFRIGRATION" VARCHAR, "JANITORIAL" VARCHAR, "INTERIOR" VARCHAR, "FIXTURE" VARCHAR, "FOOTCANDLES_1" VARCHAR, "FOOTCANDLES_2" VARCHAR, "FOOTCANDLES_3" VARCHAR, "FOOTCANDLES_4" VARCHAR, "FOOTCANDLES_5" VARCHAR, "EXTERIOR" VARCHAR, "WINDOWS" VARCHAR, "GLASS" VARCHAR, "SCREEN" VARCHAR, "COMMENTS" VARCHAR, "EVIDENCE_PHOTOS" VARCHAR) CREATE TABLE "PEST_CONTROL" ("CUSTOMER_ID" VARCHAR, "WALL/CEILING_PIPES" VARCHAR, "SANITATION" VARCHAR, "DOORS" VARCHAR, "SELF_CLOSING" VARCHAR, "RODENT_PROOF" VARCHAR, "VERMIN_PROOFING" VARCHAR, "FOUNDATION" VARCHAR, "ATTIC_VENTS" VARCHAR, "WINDOWS" VARCHAR, "TYPE_SCREENS" VARCHAR, "COMMENTS" VARCHAR, "EVIDENCE_PHOTOS" VARCHAR) CREATE TABLE "GENERAL_FOOD_SAFETY_REQ" ("CUSTOMER_ID" VARCHAR, "APPROVED_METHODS" VARCHAR, "DEFROST" VARCHAR, "FROZEN_FOOD" VARCHAR, "FOOD_WASHING" VARCHAR, "PRODUCE_1" VARCHAR, "FRUITS" VARCHAR, "GRAINS" VARCHAR, "VEGETABLES" VARCHAR, "SEPERATE_FROM_CONT" VARCHAR, "RAW" VARCHAR, "PRODUCE_2" VARCHAR, "STORED_BULK" VARCHAR, "STORAGE" VARCHAR, "FIFO" VARCHAR, "REFRIGRATAION" VARCHAR, "STORAGE_TEMP" VARCHAR, "HUMIDITY" VARCHAR, "COMMENTS" VARCHAR, "EVIDENCE_PHOTOS" VARCHAR) CREATE TABLE "FOOD_SAFETY_CERTIFICATION" ("CUSTOMER_ID" INTEGER,"OWNER" VARCHAR,"MANAGER" VARCHAR,"EMPLOYEE" VARCHAR,"NAME1" VARCHAR,"NAT'L_REGISTRY1" VARCHAR,"PROMETRIC1" VARCHAR,"SERVESAFE1" VARCHAR,"EXPIRATION1" VARCHAR,"NAME2" VARCHAR,"NAT'L_REGISTRY2" VARCHAR,"PROMETRIC2" VARCHAR,"SERVESAFE2" VARCHAR,"EXPIRATION2" VARCHAR,"COMMENTS" VARCHAR,"FOOD_TEMP" VARCHAR,"DISHWASHER" VARCHAR,"DANGER_ZONE" VARCHAR,"COOLING_FOODS" VARCHAR,"THAWING" VARCHAR,"REHEATING" VARCHAR,"THERMOMETERS" VARCHAR,"FIFO" VARCHAR,"HANDWASH" VARCHAR,"COOKING_TEMP" VARCHAR,"FOOD_POISONING_TYPES" VARCHAR,"EVEDENCE_PHOTOS" VARCHAR) CREATE TABLE "FOOD_FROM_APPROVED_SOURCES" ("CUSTOMER_ID" VARCHAR, "RECEIPTS" VARCHAR, "DELIVERY_DOOR" VARCHAR, "AIR_CURTAIN" VARCHAR, "VELOCITY" VARCHAR, "OFF_LOAD" VARCHAR, "INSPECTS" VARCHAR, "RODENTS" VARCHAR, "WARNING" VARCHAR, "SHELL_FISH" VARCHAR, "GULF_OYSTER" VARCHAR, "FOOD_OUT_OF_TEMP" VARCHAR, "COMMENTS" VARCHAR, "EVIDENCE_PHOTO" VARCHAR) CREATE TABLE "FOOD_FACILITY_SITE_FACTS" ("CUSTOMER_ID" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL UNIQUE,"DBA" VARCHAR,"DISTRICT" VARCHAR,"CITY" VARCHAR,"ZIPCODE" VARCHAR,"ADDRESS" VARCHAR,"SEAT_NO" VARCHAR,"PHONE_NO" VARCHAR,"OWNER" VARCHAR,"PERSON_IN_CHARGE" VARCHAR,"WEBSITE" VARCHAR,"EMAIL" VARCHAR,"FACILITY_TYPE" VARCHAR,"SQ_FOOTAGE" VARCHAR,"NO_OF_SEATS" VARCHAR,"ALCOHOL_SALES" VARCHAR,"LTD_PREP" VARCHAR,"BUSINESS_LICENCE_NO" VARCHAR,"EXPIRATION" VARCHAR,"COMMENTS" VARCHAR,"EVIDENCE_PHOTOS" VARCHAR) CREATE TABLE "FOOD_DISPLAY_SELF_SERVICE" ("CUSTOMER_ID" VARCHAR, "SELF_SERVICE" VARCHAR, "LIDS" VARCHAR, "UTENSILS" VARCHAR, "HOW_OFTEN_CHANGED" VARCHAR, "SCOOP" VARCHAR, "SNEEZ_GUARD" VARCHAR, "DISHES" VARCHAR, "CROSS" VARCHAR, "SENITATION" VARCHAR, "MAINTANANCE" VARCHAR, "MECHANICAL_CONDITION" VARCHAR, "SERVICE_OF_UTENSIL" VARCHAR, "TIME" VARCHAR, "PRPER_FOOD_LABELING" VARCHAR, "COMMENTS" VARCHAR, "EVIDENCE_PHOTOS" VARCHAR) CREATE TABLE "EQUIPMENT/UTENSILS/LINES" ("CUSTOMER_ID" VARCHAR, "STORED_DISHES" VARCHAR, "CUPS" VARCHAR, "DAMAGED_DISHES" VARCHAR, "UTENSILS" VARCHAR, "LINES" VARCHAR, "COOLING_EQUIPMENT" VARCHAR, "COOK_WARE_STORAGE" VARCHAR, "CONDITION" VARCHAR, "STORAGE_LOCATION" VARCHAR, "NAPKINS" VARCHAR, "SANITATION" VARCHAR, "ADEQUATE_CAPACITY" VARCHAR, "HAZARDS" VARCHAR, "COMMENTS" VARCHAR, "EVIDENCE_PHOTOS" VARCHAR) CREATE TABLE "EMPLOYEE_HEALTH_AND_HYGENE" ("CSTOMER_ID" INTEGER, "COMUNICABLE_DIESEASE" VARCHAR, "WIPING_BAGS" VARCHAR, "DISCHARGE" VARCHAR, "LOCKERS" VARCHAR, "PROPER_HAND_WASH" VARCHAR, "RESTROOM_CONDITION" VARCHAR, "HANDWASH_STATION" VARCHAR, "HAIR_RESTRAINT" VARCHAR, "GLOVES_USED" VARCHAR, "WOUND_CARE" VARCHAR, "FOOD_SAMPLE_TESTING" VARCHAR, "GARMENT_CONDITION" VARCHAR, "HEALTH" VARCHAR, "COMMENTS" VARCHAR, "EVIDENCE_PHOTOS" VARCHAR) CREATE TABLE "DISH&WARE_WASHING" ("CUSTOMER_ID" INTEGER, "TYPE_OF_COMPARTMENT_SINK" VARCHAR, "PLUMBING_ISSUE1" VARCHAR, "QUATERNARY_AMMONIA" VARCHAR, "IODINE" VARCHAR, "HOT_WTR_SANIT_TEMP" VARCHAR, "PLUMBING_ISSUE2" VARCHAR, "HOT_WATER" VARCHAR, "TEMP" VARCHAR, "DISHWASHER_TYPE" VARCHAR, "WAQLL_CONDITION" VARCHAR, "SANITIZER_LEVELS" VARCHAR, "CHLORINE" VARCHAR, "SINK_OR_DISHWASHER" VARCHAR, "EVIDENCE_PHOTOS" VARCHAR) CREATE TABLE "CORRECTIVE_ACTIONS" ("CUSTOMER_ID" VARCHAR, "CORRECTIVE_ACTIONS" VARCHAR) CREATE TABLE "CONSUMER_ADVISORY" ("CUSTOMER_ID" VARCHAR, "TRUTH_IN_MENU" VARCHAR, "MAJOR_CHAIN" VARCHAR, "TRANS_FAT" VARCHAR, "SCHOOL" VARCHAR, "PROHIBITED" VARCHAR, "CALORIES" VARCHAR, "COMMENTS" VARCHAR, "EVEDINCE_PHOTOS" VARCHAR) CREATE TABLE "COMPLAINS&ENFORCEMENTS" ("CUSTOMER_ID" VARCHAR, "PLAN_SUBMITTED" VARCHAR, "APPROVEL" VARCHAR, "CERTIFICATE_OF_OCCU" VARCHAR, "PRIOR_INSPEK_REPORT" VARCHAR, "LAST_INSPECTION_DATE" VARCHAR, "PERMIT_STATUS" VARCHAR, "POSTED" VARCHAR, "EXPIRATION" VARCHAR, "PERMIT_DISPLAYED" VARCHAR, "INSPECTION_REPORT_POSTING" VARCHAR, "COMMENTS" VARCHAR, "EVIDENCE_PHOTOS" VARCHAR)

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• Java Applet Deployment, ClassNotFoundException (primary class)

  - by Matt

  This is driving me up the wall. I have checked and rechecked spelling and paths. I have tried just about every combination of paths, including relative, absolute, and full http paths. I continue to get the following error when trying to load a Java applet: java.lang.ClassNotFoundException: AppletClient.class at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source) at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source) at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Exception: java.lang.ClassNotFoundException: AppletClient.class The HTML used to load the applet: <applet width="100" height="100" archive="applet/myapplet.jar, applet/applet_dependency.jar" code="AppletClient.class"> <param value="blahblah" name="username"> <param value="false" name="codebase_lookup"> </applet> The applet is in a relative directory, "applet", from the path of the current page. I have unzipped the jar file and can see AppletClient.class. Also, in the source of the project, it is spelled that way (casing and all). I have tried with/without the parameters. I have changed the names of the archive jars in the applet include tag just to see if I get a different error for bad file names (same error). I have manually done GETs on the jars to make sure the server is responding to the requests (it is). I have tried with and without the codebase tag, with all different varieties of paths (start getting bad "magic number" errors on those). I know that this error sometimes pops up when a dependency fails to load, so it can be misleading, but all dependencies are present, accounted for, and are fetchable via manual GETs. Between each and every attempt I always clear my cache in FireFox. These problems are reproduced in IE8 and Chrome as well. Per my Java Console from the browser, I am running Java Plug-in 1.6.0_20. This is from the same machine that I develop the applet on, which runs fine via Eclipse. Finally, I kicked on Fiddler2, and I don't see a single request for the jar files anywhere The host site is running from my Visual Studio debugger, so it's running on localhost. But I see the requests for all the other resources on Fiddler. Just... no Jars. ANYWHERE. I clear the log, cleared my browser cache, and did a ctrl-R refresh. And still, not a single Jar request on the Fiddler log. I even did a delayed write (with JS) of the applet tag after the page loaded, once all the Fiddler activity slowed down. The element gets written to the document (and I can see the 100x100 Java error window), but not a single request shows up on Fiddler. Any suggestions, before I go crawl into the corner and cry myself to sleep? EDIT: From the Java console, if I hit "l" (el) to "dump classloader list", I see something that looks like this: Live entry: key=http://localhost:55446/BaseWebSite/,http://localhost:55446/BaseWebSite/applet/myappliet.jar, http://localhost:55446/BaseWebSite/applet/applet_dependency.jar, refCount=1, threadGroup=sun.plugin2.applet.Applet2ThreadGroup[name=http://localhost:55446/BaseWebSite/-threadGroup,maxpri=4]

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• Help with specific Regex: need to match multiple instances of multiple formats in a single string.

  - by KevenK

  I apologize for the terrible title...it can be hard to try to summarize an entire situation into a single sentence. Let me start by saying that I'm asking because I'm just not a Regex expert. I've used it a bit here and there, but I just come up short with the correct way to meet the following requirements. The Regex that I'm attempting to write is for use in an XML schema for input validation, and used elsewhere in Javascript for the same purpose. There are two different possible formats that are supported. There is a literal string, which must be surrounded by quotation marks, and a Hex-value string which must be surrounded by braces. Some test cases: "this is a literal string" <-- Valid string, enclosed properly in "s "this should " still be correct" <-- Valid string, "s are allowed within (if possible, this requirement could be forgiven if necessary) "{00 11 22}" <-- Valid string, {}'s allow in strings. Another one that can be forgiven if necessary I am bad output <-- Invalid string, no "s "Some more problemss"you know <-- Invalid string, must be fully contained in "s {0A 68 4F 89 AC D2} <-- Valid string, hex characters enclosed in {}s {DDFF1234} <-- Valid string, spaces are ignored for Hex strings DEADBEEF <-- Invalid string, must be contained in either "s or {}s {0A 12 ZZ} <-- Invalid string, 'Z' is not a valid Hex character To satisfy these general requirements, I had come up with the following Regex that seems to work well enough. I'm still fairly new to Regex, so there could be a huge hole here that I'm missing.: &quot;.+&quot;|\{([0-9]|[a-f]|[A-F]| )+\} If I recall correctly, the XML Schema regex automatically assumes beginning and end of line (^ and $ respectively). So, essentially, this regex accepts any string that starts and ends with a ", or starts and ends with {}s and contains only valid Hexidecimal characters. This has worked well for me so far except that I had forgotten about another (although less common, and thus forgotten) input option that completely breaks my regex. Where I made my mistake: Valid input should also allow a user to separate valid strings (of either type, literal/hex) by a comma. This means that a single string should be able to contain more than one of the above valid strings, separated by commas. Luckily, however, a comma is not a supported character within a literal string (although I see that my existing regex does not care about commas). Example test cases: "some string",{0A F1} <-- Valid {1122},{face},"peanut butter" <-- Valid {0D 0A FF FE},"string",{FF FFAC19 85} <-- Valid (Spaces don't matter in Hex values) "Validation is allowed to break, if a comma is found not separating values",{0d 0a} <-- Invalid, comma is a delimiter, but "Validation is allowed to break" and "if a comma..." are not marked as separate strings with "s hi mom,"hello" <-- Invalid, String1 was not enclosed properly in "s or {}s My thoughts are that it is possible to use commas as a delimiter to check each "section" of the string to match a regex similar to the original, but I just am not that advanced in regex yet to come up with a solution on my own. Any help would be appreciated, but ultimately a final solution with an explanation would just stellar. Thanks for reading this huge wall of text!

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• Can't get my object to point at the mouse.

  - by melignus

  I'm using a combination of SDL and OpenGL in a sort of crash course project to teach myself how this all works. I'm really only interested in OpenGL as a way to use acceleration in 2D games so I just need this to work in a 2D plane. I have been having a lot of problems today with my current issue, I would like an object to point towards the mouse while the mouse button is clicked and then of course stay pointing in that direction after the mouse is lifted. void Square::handle_input() { //If a key was pressed if( event.type == SDL_KEYDOWN ) { //Adjust the velocity switch( event.key.keysym.sym ) { case SDLK_UP: upUp = false; yVel = -1; break; case SDLK_DOWN: downUp = false; yVel = 1; break; case SDLK_LEFT: leftUp = false; xVel = -1; break; case SDLK_RIGHT: rightUp = false; xVel = 1; break; case SDLK_w: wUp = false; sAng = 1; break; case SDLK_s: sUp = false; sAng = -1; break; } } //If a key was released else if( event.type == SDL_KEYUP ) { //Adjust the velocity switch( event.key.keysym.sym ) { case SDLK_UP: upUp = true; yVel = 0; break; case SDLK_DOWN: downUp = true; yVel = 0; break; case SDLK_LEFT: leftUp = true; xVel = 0; break; case SDLK_RIGHT: rightUp = true; xVel = 0; break; case SDLK_w: wUp = true; sAng = 0; break; case SDLK_s: sUp = true; sAng = 0; break; } } //If a mouse button was pressed if( event.type == SDL_MOUSEBUTTONDOWN ) { switch ( event.type ) { case SDL_MOUSEBUTTONDOWN: mouseUp = false; mousex == event.button.x; mousey == event.button.y; break; case SDL_MOUSEBUTTONUP: mouseUp = true; break; } } } And then this is called at the end of my Object::Move call which also handles x and y translation if (!mouseUp) { xVect = mousex - x; yVect = mousey - y; radAng = atan2 ( mousey - y, mousex - x ); sAng = radAng * 180 / 3.1415926l; } Right now when I click the object turns and faces down to the bottom left but then no longer changes direction. I'd really appreciate any help I could get here. I'm guessing there might be an issue here with state versus polled events but from all the tutorials that I've been through I was pretty sure I had fixed that. I've just hit a wall and I need some advice!

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• Entity Framework Generic Repository Error

  - by Jeff Ancel

  I am trying to create a very generic generics repository for my Entity Framework repository that has the basic CRUD statements and uses an Interface. I have hit a brick wall head first and been knocked over. Here is my code, written in a console application, using a Entity Framework Model, with a table named Hurl. Simply trying to pull back the object by its ID. Here is the full application code. using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Data.Objects; using System.Linq.Expressions; using System.Reflection; using System.Data.Objects.DataClasses; namespace GenericsPlay { class Program { static void Main(string[] args) { var hs = new HurlRepository(new hurladminEntity()); var hurl = hs.Load<Hurl>(h => h.Id == 1); Console.Write(hurl.ShortUrl); Console.ReadLine(); } } public interface IHurlRepository { T Load<T>(Expression<Func<T, bool>> expression); } public class HurlRepository : IHurlRepository, IDisposable { private ObjectContext _objectContext; public HurlRepository(ObjectContext objectContext) { _objectContext = objectContext; } public ObjectContext ObjectContext { get { return _objectContext; } } private Type GetBaseType(Type type) { Type baseType = type.BaseType; if (baseType != null && baseType != typeof(EntityObject)) { return GetBaseType(type.BaseType); } return type; } private bool HasBaseType(Type type, out Type baseType) { Type originalType = type.GetType(); baseType = GetBaseType(type); return baseType != originalType; } public IQueryable<T> GetQuery<T>() { Type baseType; if (HasBaseType(typeof(T), out baseType)) { return this.ObjectContext.CreateQuery<T>("[" + baseType.Name.ToString() + "]").OfType<T>(); } else { return this.ObjectContext.CreateQuery<T>("[" + typeof(T).Name.ToString() + "]"); } } public T Load<T>(Expression<Func<T, bool>> whereCondition) { return this.GetQuery<T>().Where(whereCondition).First(); } public void Dispose() { if (_objectContext != null) { _objectContext.Dispose(); } } } } Here is the error that I am getting: System.Data.EntitySqlException was unhandled Message="'Hurl' could not be resolved in the current scope or context. Make sure that all referenced variables are in scope, that required schemas are loaded, and that namespaces are referenced correctly., near escaped identifier, line 3, column 1." Source="System.Data.Entity" Column=1 ErrorContext="escaped identifier" ErrorDescription="'Hurl' could not be resolved in the current scope or context. Make sure that all referenced variables are in scope, that required schemas are loaded, and that namespaces are referenced correctly." This is where I am attempting to extract this information from. http://blog.keithpatton.com/2008/05/29/Polymorphic+Repository+For+ADONet+Entity+Framework.aspx

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• Intrinsics program (SSE) - g++ - help needed

  - by Sriram

  Hi all, This is the first time I am posting a question on stackoverflow, so please try and overlook any errors I may have made in formatting my question/code. But please do point the same out to me so I may be more careful. I was trying to write some simple intrinsics routines for the addition of two 128-bit (containing 4 float variables) numbers. I found some code on the net and was trying to get it to run on my system. The code is as follows: //this is a sample Intrinsics program to add two vectors. #include <iostream> #include <iomanip> #include <xmmintrin.h> #include <stdio.h> using namespace std; struct vector4 { float x, y, z, w; }; //functions to operate on them. vector4 set_vector(float x, float y, float z, float w = 0) { vector4 temp; temp.x = x; temp.y = y; temp.z = z; temp.w = w; return temp; } void print_vector(const vector4& v) { cout << " This is the contents of vector: " << endl; cout << " > vector.x = " << v.x << endl; cout << " vector.y = " << v.y << endl; cout << " vector.z = " << v.z << endl; cout << " vector.w = " << v.w << endl; } vector4 sse_vector4_add(const vector4&a, const vector4& b) { vector4 result; asm volatile ( "movl $a, %eax" //move operands into registers. "\n\tmovl $b, %ebx" "\n\tmovups (%eax), xmm0" //move register contents into SSE registers. "\n\tmovups (%ebx), xmm1" "\n\taddps xmm0, xmm1" //add the elements. addps operates on single-precision vectors. "\n\t movups xmm0, result" //move result into vector4 type data. ); return result; } int main() { vector4 a, b, result; a = set_vector(1.1, 2.1, 3.2, 4.5); b = set_vector(2.2, 4.2, 5.6); result = sse_vector4_add(a, b); print_vector(a); print_vector(b); print_vector(result); return 0; } The g++ parameters I use are: g++ -Wall -pedantic -g -march=i386 -msse intrinsics_SSE_example.C -o h The errors I get are as follows: intrinsics_SSE_example.C: Assembler messages: intrinsics_SSE_example.C:45: Error: too many memory references for movups intrinsics_SSE_example.C:46: Error: too many memory references for movups intrinsics_SSE_example.C:47: Error: too many memory references for addps intrinsics_SSE_example.C:48: Error: too many memory references for movups I have spent a lot of time on trying to debug these errors, googled them and so on. I am a complete noob to Intrinsics and so may have overlooked some important things. Any help is appreciated, Thanks, Sriram.

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• Isn't it better to use a single try catch instead of tons of TryParsing and other error handling sometimes?

  - by Ryan Peschel

  I know people say it's bad to use exceptions for flow control and to only use exceptions for exceptional situations, but sometimes isn't it just cleaner and more elegant to wrap the entire block in a try-catch? For example, let's say I have a dialog window with a TextBox where the user can type input in to be parsed in a key-value sort of manner. This situation is not as contrived as you might think because I've inherited code that has to handle this exact situation (albeit not with farm animals). Consider this wall of code: class Animals { public int catA, catB; public float dogA, dogB; public int mouseA, mouseB, mouseC; public double cow; } class Program { static void Main(string[] args) { string input = "Sets all the farm animals CAT 3 5 DOG 21.3 5.23 MOUSE 1 0 1 COW 12.25"; string[] splitInput = input.Split(' '); string[] animals = { "CAT", "DOG", "MOUSE", "COW", "CHICKEN", "GOOSE", "HEN", "BUNNY" }; Animals animal = new Animals(); for (int i = 0; i < splitInput.Length; i++) { string token = splitInput[i]; if (animals.Contains(token)) { switch (token) { case "CAT": animal.catA = int.Parse(splitInput[i + 1]); animal.catB = int.Parse(splitInput[i + 2]); break; case "DOG": animal.dogA = float.Parse(splitInput[i + 1]); animal.dogB = float.Parse(splitInput[i + 2]); break; case "MOUSE": animal.mouseA = int.Parse(splitInput[i + 1]); animal.mouseB = int.Parse(splitInput[i + 2]); animal.mouseC = int.Parse(splitInput[i + 3]); break; case "COW": animal.cow = double.Parse(splitInput[i + 1]); break; } } } } } In actuality there are a lot more farm animals and more handling than that. A lot of things can go wrong though. The user could enter in the wrong number of parameters. The user can enter the input in an incorrect format. The user could specify numbers too large or too small for the data type to handle. All these different errors could be handled without exceptions through the use of TryParse, checking how many parameters the user tried to use for a specific animal, checking if the parameter is too large or too small for the data type (because TryParse just returns 0), but every one should result in the same thing: A MessageBox appearing telling the user that the inputted data is invalid and to fix it. My boss doesn't want different message boxes for different errors. So instead of doing all that, why not just wrap the block in a try-catch and in the catch statement just display that error message box and let the user try again? Maybe this isn't the best example but think of any other scenario where there would otherwise be tons of error handling that could be substituted for a single try-catch. Is that not the better solution?

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• Snake Game Help

  - by MuhammadA

  I am making a snake game and learning XNA at the same time. I have 3 classes : Game.cs, Snake.cs and Apple.cs My problem is more of a conceptual problem, I want to know which class is really responsible for ... detecting collision of snake head on apple/itself/wall? which class should increase the snakes speed, size? It seems to me that however much I try and put the snake stuff into snake.cs that game.cs has to know a lot about the snake, like : -- I want to increase the score depending on size of snake, the score variable is inside game.cs, which means now I have to ask the snake its size on every hit of the apple... seems a bit unclean all this highly coupled code. or -- I DO NOT want to place the apple under the snake... now the apple suddenly has to know about all the snake parts, my head hurts when I think of that. Maybe there should be some sort of AppleLayer.cs class that should know about the snake... Whats the best approach in such a simple scenario? Any tips welcome. Game.cs : using System; using System.Collections.Generic; using System.Linq; using Microsoft.Xna.Framework; using Microsoft.Xna.Framework.Audio; using Microsoft.Xna.Framework.Content; using Microsoft.Xna.Framework.GamerServices; using Microsoft.Xna.Framework.Graphics; using Microsoft.Xna.Framework.Input; using Microsoft.Xna.Framework.Media; using Microsoft.Xna.Framework.Design; namespace Snakez { public enum CurrentGameState { Playing, Paused, NotPlaying } public class Game1 : Microsoft.Xna.Framework.Game { private GraphicsDeviceManager _graphics; private SpriteBatch _spriteBatch; private readonly Color _niceGreenColour = new Color(167, 255, 124); private KeyboardState _oldKeyboardState; private SpriteFont _scoreFont; private SoundEffect _biteSound, _crashSound; private Vector2 _scoreLocation = new Vector2(10, 10); private Apple _apple; private Snake _snake; private int _score = 0; private int _speed = 1; public Game1() { _graphics = new GraphicsDeviceManager(this); Content.RootDirectory = "Content"; } /// <summary> /// Allows the game to perform any initialization it needs to before starting to run. /// This is where it can query for any required services and load any non-graphic /// related content. Calling base.Initialize will enumerate through any components /// and initialize them as well. /// </summary> protected override void Initialize() { base.Initialize(); } /// <summary> /// LoadContent will be called once per game and is the place to load /// all of your content. /// </summary> protected override void LoadContent() { _spriteBatch = new SpriteBatch(GraphicsDevice); _scoreFont = Content.Load<SpriteFont>("Score"); _apple = new Apple(800, 480, Content.Load<Texture2D>("Apple")); _snake = new Snake(Content.Load<Texture2D>("BodyBlock")); _biteSound = Content.Load<SoundEffect>("Bite"); _crashSound = Content.Load<SoundEffect>("Crash"); } /// <summary> /// UnloadContent will be called once per game and is the place to unload /// all content. /// </summary> protected override void UnloadContent() { Content.Unload(); } /// <summary> /// Allows the game to run logic such as updating the world, /// checking for collisions, gathering input, and playing audio. /// </summary> /// <param name="gameTime">Provides a snapshot of timing values.</param> protected override void Update(GameTime gameTime) { KeyboardState newKeyboardState = Keyboard.GetState(); if (newKeyboardState.IsKeyDown(Keys.Escape)) { this.Exit(); // Allows the game to exit } else if (newKeyboardState.IsKeyDown(Keys.Up) && !_oldKeyboardState.IsKeyDown(Keys.Up)) { _snake.SetDirection(Direction.Up); } else if (newKeyboardState.IsKeyDown(Keys.Down) && !_oldKeyboardState.IsKeyDown(Keys.Down)) { _snake.SetDirection(Direction.Down); } else if (newKeyboardState.IsKeyDown(Keys.Left) && !_oldKeyboardState.IsKeyDown(Keys.Left)) { _snake.SetDirection(Direction.Left); } else if (newKeyboardState.IsKeyDown(Keys.Right) && !_oldKeyboardState.IsKeyDown(Keys.Right)) { _snake.SetDirection(Direction.Right); } _oldKeyboardState = newKeyboardState; _snake.Update(); if (_snake.IsEating(_apple)) { _biteSound.Play(); _score += 10; _apple.Place(); } base.Update(gameTime); } /// <summary> /// This is called when the game should draw itself. /// </summary> /// <param name="gameTime">Provides a snapshot of timing values.</param> protected override void Draw(GameTime gameTime) { GraphicsDevice.Clear(_niceGreenColour); float frameRate = 1 / (float)gameTime.ElapsedGameTime.TotalSeconds; _spriteBatch.Begin(); _spriteBatch.DrawString(_scoreFont, "Score : " + _score, _scoreLocation, Color.Red); _apple.Draw(_spriteBatch); _snake.Draw(_spriteBatch); _spriteBatch.End(); base.Draw(gameTime); } } } Snake.cs : using System; using System.Collections.Generic; using System.Linq; using System.Text; using Microsoft.Xna.Framework.Graphics; using Microsoft.Xna.Framework; namespace Snakez { public enum Direction { Up, Down, Left, Right } public class Snake { private List<Rectangle> _parts; private readonly Texture2D _bodyBlock; private readonly int _startX = 160; private readonly int _startY = 120; private int _moveDelay = 100; private DateTime _lastUpdatedAt; private Direction _direction; private Rectangle _lastTail; public Snake(Texture2D bodyBlock) { _bodyBlock = bodyBlock; _parts = new List<Rectangle>(); _parts.Add(new Rectangle(_startX, _startY, _bodyBlock.Width, _bodyBlock.Height)); _parts.Add(new Rectangle(_startX + bodyBlock.Width, _startY, _bodyBlock.Width, _bodyBlock.Height)); _parts.Add(new Rectangle(_startX + (bodyBlock.Width) * 2, _startY, _bodyBlock.Width, _bodyBlock.Height)); _parts.Add(new Rectangle(_startX + (bodyBlock.Width) * 3, _startY, _bodyBlock.Width, _bodyBlock.Height)); _direction = Direction.Right; _lastUpdatedAt = DateTime.Now; } public void Draw(SpriteBatch spriteBatch) { foreach (var p in _parts) { spriteBatch.Draw(_bodyBlock, new Vector2(p.X, p.Y), Color.White); } } public void Update() { if (DateTime.Now.Subtract(_lastUpdatedAt).TotalMilliseconds > _moveDelay) { //DateTime.Now.Ticks _lastTail = _parts.First(); _parts.Remove(_lastTail); /* add new head in right direction */ var lastHead = _parts.Last(); var newHead = new Rectangle(0, 0, _bodyBlock.Width, _bodyBlock.Height); switch (_direction) { case Direction.Up: newHead.X = lastHead.X; newHead.Y = lastHead.Y - _bodyBlock.Width; break; case Direction.Down: newHead.X = lastHead.X; newHead.Y = lastHead.Y + _bodyBlock.Width; break; case Direction.Left: newHead.X = lastHead.X - _bodyBlock.Width; newHead.Y = lastHead.Y; break; case Direction.Right: newHead.X = lastHead.X + _bodyBlock.Width; newHead.Y = lastHead.Y; break; } _parts.Add(newHead); _lastUpdatedAt = DateTime.Now; } } public void SetDirection(Direction newDirection) { if (_direction == Direction.Up && newDirection == Direction.Down) { return; } else if (_direction == Direction.Down && newDirection == Direction.Up) { return; } else if (_direction == Direction.Left && newDirection == Direction.Right) { return; } else if (_direction == Direction.Right && newDirection == Direction.Left) { return; } _direction = newDirection; } public bool IsEating(Apple apple) { if (_parts.Last().Intersects(apple.Location)) { GrowBiggerAndFaster(); return true; } return false; } private void GrowBiggerAndFaster() { _parts.Insert(0, _lastTail); _moveDelay -= (_moveDelay / 100)*2; } } } Apple.cs : using System; using System.Collections.Generic; using System.Linq; using System.Text; using Microsoft.Xna.Framework.Graphics; using Microsoft.Xna.Framework; namespace Snakez { public class Apple { private readonly int _maxWidth, _maxHeight; private readonly Texture2D _texture; private readonly Random random = new Random(); public Rectangle Location { get; private set; } public Apple(int screenWidth, int screenHeight, Texture2D texture) { _maxWidth = (screenWidth + 1) - texture.Width; _maxHeight = (screenHeight + 1) - texture.Height; _texture = texture; Place(); } public void Place() { Location = GetRandomLocation(_maxWidth, _maxHeight); } private Rectangle GetRandomLocation(int maxWidth, int maxHeight) { // x and y -- multiple of 20 int x = random.Next(1, maxWidth); var leftOver = x % 20; x = x - leftOver; int y = random.Next(1, maxHeight); leftOver = y % 20; y = y - leftOver; return new Rectangle(x, y, _texture.Width, _texture.Height); } public void Draw(SpriteBatch spriteBatch) { spriteBatch.Draw(_texture, Location, Color.White); } } }

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• How to scale rotated objects properly in Actionscript 3?

  - by Tom

  This is unfortunately a quite complex issue to explain, so please don't get discouraged by the wall of text - it's there for a reason. ;) I'm working on a transformation manager for flash, written with Actionscript 3. Users can place objects on the screen, for example a rectangle. This rectangle can then be selected and transformed: move, scale or rotate. Because flash by default rotates around the top left point of the object, and I want it to rotate around the center, I created a wrapper setup for each display object (eg. a rectangle). This is how the wrappers are setup: //the position wrapper makes sure that we do get the top left position when we access x and y var positionWrapper:Sprite = new Sprite(); positionWrapper.x = renderObject.x; positionWrapper.y = renderObject.y; //set the render objects location to center at the rotation wrappers top left renderObject.x = 0 - renderObject.width / 2; renderObject.y = 0 - renderObject.height / 2; //now create a rotation wrapper, at the center of the display object var rotationWrapper:Sprite = new Sprite(); rotationWrapper.x = renderObject.width / 2; rotationWrapper.y = renderObject.height / 2; //put the rotation wrapper inside the position wrapper and the render object inside the rotation wrapper positionWrapper.addChild(rotationWrapper); rotationWrapper.addChild(renderObject); Now, the x and y of the object can be accessed and set directly: mainWrapper.x or mainWrapper.y. The rotation can be set and accessed from the child of this main wrapper: mainWrapper.getChildAt(0).rotation. Finally, the width and height of the display object can be retreived and set by getting the child of the rotation wrapper and accessing the display object directly. An example on how I access them: //get wrappers and render object var positionWrapper:Sprite = currentSelection["render"]; var rotationWrapper:Sprite = positionWrapper.getChildAt(0) as Sprite; var renderObject:DisplayObject = rotationWrapper.getChildAt(0); This works perfectly for all initial transformations: moving, scaling and rotating. However, the problem arises when you first rotate an object (eg. 45 degrees) and then scale it. The scaled object is getting out of shape and doesn't scale as it should. This for example happens when you scale to the left. Scaling left is basically adding n width to the object and then reduce the x coord of the position wrapper by n too: renderObject.width -= diffX; positionWrapper.x += diffX; This works when the object is not rotated. However, when it is, the position wrapper won't be rotated as it is a parent of the rotation wrapper. This will make the position wrapper move left horizontally while the width of the object is increased diagonally. I hope this makes any sense, if not, please tell me and I'll try to elaborate more. Now, to the question: should I use a different kind of setup, system or structure? Should I maybe use matrixes, if so, how would you keep a static width/height after rotation? Or how do I fix my current wrapper system for scaling after rotation? Any help is appreciated.

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• mixed declarations and codes

  - by gcc

  When I compile function with "gcc -o dene -Wall -ansi -pedantic-errors dene.c",gcc emits no error.(can you look a line which starts with char ....,in if loop,) static void remove_negation(char *s,char *s1) { char **cmainp=malloc(sizeof(char*)*1); int len=0;int d=0; int i=0; cmainp[0]=malloc(sizeof(char)*300); len=strlen(s); for(i=0;i<len;++i) { if(s[i]=='-') if(i==0 || s[i-1]==',') /*look*/ {char *p=malloc(sizeof(char)*3); /*look*/ ++i; p[0]=s[i]; p[1]='\0'; strcat(s1,","); strcat(s1,p); free(p); continue; } cmainp[0][d]=s[i]; ++d; } cmainp[0][d+1]='\0'; strcpy(cmainp[0],s); free(cmainp[0]); } But,when compile above function being reformatted with gcc,gcc emits that error "dene.c:10: error: ISO C90 forbids mixed declarations and code" static void remove_negation(char *s,char *s1) { char **cmainp=malloc(sizeof(char*)*1); /*look*/ cmainp[0]=malloc(sizeof(char)*300); /*look*/ int len=0;int d=0; int i=0; len=strlen(s); for(i=0;i<len;++i) { if(s[i]=='-') if(i==0 || s[i-1]==',') {char *p=malloc(sizeof(char)*3); ++i; p[0]=s[i]; p[1]='\0'; strcat(s1,","); strcat(s1,p); free(p); continue; } cmainp[0][d]=s[i]; ++d; } cmainp[0][d+1]='\0'; strcpy(cmainp[0],s); free(cmainp[0]); } And last one,gcc emits following errors dene.c:16: error: expected expression before ‘char’ dene.c:20: error: ‘p1’ undeclared (first use in this function) dene.c:20: error: (Each undeclared identifier is reported only once dene.c:20: error: for each function it appears in.) static void remove_negation(char *s,char *s1) { char **cmainp=malloc(sizeof(char*)*1); /*look*/ cmainp[0]=malloc(sizeof(char)*300); /*look*/ int len=0;int d=0; int i=0; len=strlen(s); for(i=0;i<len;++i) { if(s[i]=='-') /*look*/ char *p=malloc(sizeof(char)*3); /*look*/ if(i==0 || s[i-1]==',') { ++i; p[0]=s[i]; p[1]='\0'; strcat(s1,","); strcat(s1,p); free(p); continue; } cmainp[0][d]=s[i]; ++d; } cmainp[0][d+1]='\0'; strcpy(cmainp[0],s); free(cmainp[0]); } question is why there are differences between them.

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• Creating an element and insertBefore is not working...

  - by sologhost

  Ok, I've been banging my head up against the wall on this and I have no clue why it isn't creating the element. Maybe something very small that I overlooked here. Basically, there is this Javascript code that is in a PHP document being outputted, like somewhere in the middle of when the page gets loaded, NOW, unfortunately it can't go into the header. Though I'm not sure that that is the problem anyways, but perhaps it is... hmmmmm. // Setting the variables needed to be set. echo ' <script type="text/javascript" src="' . $settings['default_theme_url'] . '/scripts/dpShoutbox.js"></script>'; echo ' <script type="text/javascript"> var refreshRate = ', $params['refresh_rate'], '; createEventListener(window); window.addEventListener("load", loadShouts, false); function loadShouts() { var alldivs = document.getElementsByTagName(\'div\'); var shoutCount = 0; var divName = "undefined"; for (var i = 0; i<alldivs.length; i++) { var is_counted = 0; divName = alldivs[i].getAttribute(\'name\'); if (divName.indexOf(\'dp_Reserved_Shoutbox\') < 0 && divName.indexOf(\'dp_Reserved_Counted\') < 0) continue; else if(divName == "undefined") continue; else { if (divName.indexOf(\'dp_Reserved_Counted\') == 0) { is_counted = 0; shoutCount++; continue; } else { shoutCount++; is_counted = 1; } } // Empty out the name attr. alldivs[i].name = \'dp_Reserved_Counted\'; var shoutId = \'shoutbox_area\' + shoutCount; // Build the div to be inserted. var shoutHolder = document.createElement(\'div\'); shoutHolder.setAttribute(\'id\', [shoutId]); shoutHolder.setAttribute(\'class\', \'dp_control_flow\'); shoutHolder.style.cssText = \'padding-right: 6px;\'; alldivs[i].parentNode.insertBefore(shoutHolder, alldivs[i]); if (is_counted == 1) { startShouts(refreshRate, shoutId); break; } } } </script>'; Also, I'm sure the other functions that I'm linking to within these functions work just fine. The problem here is that within this function, the div never gets created at all and I can't understand why? Furthermore Firefox, FireBug is telling me that the variable divName is undefined, even though I have attempted to take care of this within the function, though not sure why. Anyways, I need the created div element to be inserted just before the following HTML: echo ' <div name="dp_Reserved_Shoutbox" style="padding-bottom: 9px;"></div>'; I'm using name here instead of id because I don't want duplicate id values which is why I'm changing the name value and incrementing, since this function may be called more than 1 time. For example if there are 3 shoutboxes on the same page (Don't ask why...lol), I need to skip the other names that I already changed to "dp_Reserved_Counted", which I believe I am doing correctly. In any case, if I could I would place this into the header and have it called just once, but this isn't possible as these are loaded and no way of telling which one's they are, so it's directly hard-coded into the actual output on the page of where the shoutbox is within the HTML. Basically, not sure if that is the problem or not, but there must be some sort of work-around, unless the problem is within my code above... arrg Please help me. Thanks :)

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• mysql_close doesn't kill locked sql requests

  - by Nikita

  I use mysqld Ver 5.1.37-2-log for debian-linux-gnu I perform mysql calls from c++ code with functions mysql_query. The problem occurs when mysql_query execute procedure, procedure locked on locked table, so mysql_query hangs. If send kill signal to application then we can see lock until table is locked. Create the following SQL table and procedure CREATE TABLE IF NOT EXISTS `tabletolock` ( `id` INT NOT NULL AUTO_INCREMENT, PRIMARY KEY (`id`) )ENGINE = InnoDB; DELIMITER $$ DROP PROCEDURE IF EXISTS `LOCK_PROCEDURE` $$ CREATE PROCEDURE `LOCK_PROCEDURE`() BEGIN SELECT id INTO @id FROM tabletolock; END $$ DELOMITER; There are sql commands to reproduce the problem: 1. in one terminal execute lock tables tabletolock write; 2. in another terminal execute call LOCK_PROCEDURE(); 3. In first terminal exeute show processlist and see | 2492 | root | localhost | syn_db | Query | 12 | Locked | SELECT id INTO @id FROM tabletolock | Then perfrom Ctrl-C in second terminal to interrupt our procudere and see processlist again. It is not changed, we already see locked select request and can teminate it by unlock tables or kill commands. Problem described is occured with mysql command line client. Also such problem exists when we use functions mysql_query and mysql_close. Example of c code: #include <iostream> #include <mysql/mysql.h> #include <mysql/errmsg.h> #include <signal.h> // g++ -Wall -g -fPIC -lmysqlclient dbtest.cpp using namespace std; MYSQL * connection = NULL; void closeconnection() { if(connection != NULL) { cout << "close connection !\n"; mysql_close(connection); mysql_thread_end(); delete connection; mysql_library_end(); } } void sigkill(int s) { closeconnection(); signal(SIGINT, NULL); raise(s); } int main(int argc, char ** argv) { signal(SIGINT, sigkill); connection = new MYSQL; mysql_init(connection); mysql_options(connection, MYSQL_READ_DEFAULT_GROUP, "nnfc"); if (!mysql_real_connect(connection, "127.0.0.1", "user", "password", "db", 3306, NULL, CLIENT_MULTI_RESULTS)) { delete connection; cout << "cannot connect\n"; return -1; } cout << "before procedure call\n"; mysql_query(connection, "CALL LOCK_PROCEDURE();"); cout << "after procedure call\n"; closeconnection(); return 0; } Compile it, and perform the folloing actions: 1. in first terminal local tables tabletolock write; 2. run program ./a.out 3. interrupt program Ctrl-C. on the screen we see that closeconnection function is called, so connection is closed. 4. in first terminal execute show processlist and see that procedure was not intrrupted. My question is how to terminate such locked calls from c code? Thank you in advance!

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• Output a php multi-dimensional array to a html table

  - by Fireflight

  I have been banging my head against the wall with this one for nearly a week now, and am no closer than I was the first day. I have a form that has 8 columns and a variable number of rows which I need to email to the client in a nicely formatted email. The form submits the needed fields as a multidimensional array. Rough example is below: <input name="order[0][topdiameter]" type="text" id="topdiameter0" value="1" size="5" /> <input name="order[0][bottomdiameter]" type="text" id="bottomdiameter0" value="1" size="5" /> <input name="order[0][slantheight]" type="text" id="slantheight0" value="1" size="5" /> <select name="order[0][fittertype]" id="fittertype0"> <option value="harp">Harp</option> <option value="euro">Euro</option> <option value="bulbclip">Regular</option> </select> <input name="order[0][washerdrop]" type="text" id="washerdrop0" value="1" size="5" /> <select name="order[0][fabrictype]" id="fabrictype"> <option value="linen">Linen</option> <option value="pleated">Pleated</option> </select> <select name="order[0][colours]" id="colours0"> <option value="beige">Beige</option> <option value="white">White</option> <option value="eggshell">Eggshell</option> <option value="parchment">Parchment</option> </select> <input name="order[0][quantity]" type="text" id="quantity0" value="1" size="5" /> This form is formatted in a table, and rows can be added to it dynamically. What I've been unable to do is get a properly formatted table out of the array. This is what I'm using now (grabbed from the net). <?php if (isset($_POST["submit"])) { $arr= $_POST['order'] echo '<table>'; foreach($arr as $arrs) { echo '<tr>'; foreach($arrs as $item) { echo "<td>$item</td>"; } echo '</tr>'; } echo '</table>; }; ?> This works perfectly for a single row of data. If I try submitting 2 or more rows from the form then one of the columns disappears. I'd like the table to be formatted as: | top | Bottom | Slant | Fitter | Washer | Fabric | Colours | Quantity | ------------------------------------------------------------------------ |value| value | value | value | value | value | value | value | with additional rows as needed. But, I can't find any examples that will generate that type of table! It seems like this should be something fairly straightforward, but I just can't locate an example that works the way I need it too.

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• hello-1.mod.c:14: warning: missing initializer (near initialization for '__this_module.arch.unw_sec_init')

  - by Sompom

  I am trying to write a module for an sbc1651. Since the device is ARM, this requires a cross-compile. As a start, I am trying to compile the "Hello Kernel" module found here. This compiles fine on my x86 development system, but when I try to cross-compile I get the below error. /home/developer/HelloKernel/hello-1.mod.c:14: warning: missing initializer /home/developer/HelloKernel/hello-1.mod.c:14: warning: (near initialization for '__this_module.arch.unw_sec_init') Since this is in the .mod.c file, which is autogenerated I have no idea what's going on. The mod.c file seems to be generated by the module.h file. As far as I can tell, the relevant parts are the same between my x86 system's module.h and the arm kernel header's module.h. Adding to my confusion, this problem is either not googleable (by me...) or hasn't happened to anyone before. Or I'm just doing something clueless that anyone with any sense wouldn't do. The cross-compiler I'm using was supplied by Freescale (I think). I suppose it could be a problem with the compiler. Would it be worth trying to build the toolchain myself? Obviously, since this is a warning, I could ignore it, but since it's so strange, I am worried about it, and would like to at least know the cause... Thanks very much, Sompom Here are the source files hello-1.mod.c #include <linux/module.h> #include <linux/vermagic.h> #include <linux/compiler.h> MODULE_INFO(vermagic, VERMAGIC_STRING); struct module __this_module __attribute__((section(".gnu.linkonce.this_module"))) = { .name = KBUILD_MODNAME, .init = init_module, #ifdef CONFIG_MODULE_UNLOAD .exit = cleanup_module, #endif .arch = MODULE_ARCH_INIT, }; static const struct modversion_info ____versions[] __used __attribute__((section("__versions"))) = { { 0x3972220f, "module_layout" }, { 0xefd6cf06, "__aeabi_unwind_cpp_pr0" }, { 0xea147363, "printk" }, }; static const char __module_depends[] __used __attribute__((section(".modinfo"))) = "depends="; hello-1.c (modified slightly from the given link) /* hello-1.c - The simplest kernel module. * * Copyright (C) 2001 by Peter Jay Salzman * * 08/02/2006 - Updated by Rodrigo Rubira Branco <[email protected]> */ /* Kernel Programming */ #ifndef MODULE #define MODULE #endif #ifndef LINUX #define LINUX #endif #ifndef __KERNEL__ #define __KERNEL__ #endif #include <linux/module.h> /* Needed by all modules */ #include <linux/kernel.h> /* Needed for KERN_ALERT */ static int hello_init_module(void) { printk(KERN_ALERT "Hello world 1.\n"); /* A non 0 return means init_module failed; module can't be loaded.*/ return 0; } static void hello_cleanup_module(void) { printk(KERN_ALERT "Goodbye world 1.\n"); } module_init(hello_init_module); module_exit(hello_cleanup_module); MODULE_LICENSE("GPL"); Makefile export ARCH:=arm export CCPREFIX:=/opt/freescale/usr/local/gcc-4.4.4-glibc-2.11.1-multilib-1.0/arm-fsl-linux-gnueabi/bin/arm-linux- export CROSS_COMPILE:=${CCPREFIX} TARGET := hello-1 WARN := -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-sign-compare -Wno-unused -Werror UNUSED_FLAGS := -std=c99 -pedantic EXTRA_CFLAGS := -O2 -DMODULE -D__KERNEL__ ${WARN} ${INCLUDE} KDIR ?= /home/developer/src/ltib-microsys/ltib/rpm/BUILD/linux-2.6.35.3 ifneq ($(KERNELRELEASE),) # kbuild part of makefile obj-m := $(TARGET).o else # normal makefile default: clean $(MAKE) -C $(KDIR) M=$$PWD .PHONY: clean clean: -rm built-in.o -rm $(TARGET).ko -rm $(TARGET).ko.unsigned -rm $(TARGET).mod.c -rm $(TARGET).mod.o -rm $(TARGET).o -rm modules.order -rm Module.symvers endif

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