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  • How to attach boost::shared_ptr (or another smart pointer) to reference counter of object's parent?

    - by Checkers
    I remember encountering this concept before, but can't find it in Google now. If I have an object of type A, which directly embeds an object of type B: class A { B b; }; How can I have a smart pointer to B, e. g. boost::shared_ptr<B>, but use reference count of A? Assume an instance of A itself is heap-allocated I can safely get its shared count using, say, enable_shared_from_this.

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  • Replacing objects, handling clones, dealing with write logs

    - by Alix
    Hi everyone, I'm dealing with a problem I can't figure out how to solve, and I'd love to hear some suggestions. [NOTE: I realise I'm asking several questions; however, answers need to take into account all of the issues, so I cannot split this into several questions] Here's the deal: I'm implementing a system that underlies user applications and that protect shared objects from concurrent accesses. The application programmer (whose application will run on top of my system) defines such shared objects like this: public class MyAtomicObject { // These are just examples of fields you may want to have in your class. public virtual int x { get; set; } public virtual List<int> list { get; set; } public virtual MyClassA objA { get; set; } public virtual MyClassB objB { get; set; } } As you can see they declare the fields of their class as auto-generated properties (auto-generated means they don't need to implement get and set). This is so that I can go in and extend their class and implement each get and set myself in order to handle possible concurrent accesses, etc. This is all well and good, but now it starts to get ugly: the application threads run transactions, like this: The thread signals it's starting a transaction. This means we now need to monitor its accesses to the fields of the atomic objects. The thread runs its code, possibly accessing fields for reading or writing. If there are accesses for writing, we'll hide them from the other transactions (other threads), and only make them visible in step 3. This is because the transaction may fail and have to roll back (undo) its updates, and in that case we don't want other threads to see its "dirty" data. The thread signals it wants to commit the transaction. If the commit is successful, the updates it made will now become visible to everyone else. Otherwise, the transaction will abort, the updates will remain invisible, and no one will ever know the transaction was there. So basically the concept of transaction is a series of accesses that appear to have happened atomically, that is, all at the same time, in the same instant, which would be the moment of successful commit. (This is as opposed to its updates becoming visible as it makes them) In order to hide the write accesses in step 2, I clone the accessed field (let's say it's the field list) and put it in the transaction's write log. After that, any time the transaction accesses list, it will actually be accessing the clone in its write log, and not the global copy everyone else sees. Like this, any changes it makes will be done to the (invisible) clone, not to the global copy. If in step 3 the commit is successful, the transaction should replace the global copy with the updated list it has in its write log, and then the changes become visible for everyone else at once. It would be something like this: myAtomicObject.list = updatedCloneOfListInTheWriteLog; Problem #1: possible references to the list. Let's say someone puts a reference to the global list in a dictionary. When I do... myAtomicObject.list = updatedCloneOfListInTheWriteLog; ...I'm just replacing the reference in the field list, but not the real object (I'm not overwriting the data), so in the dictionary we'll still have a reference to the old version of the list. A possible solution would be to overwrite the data (in the case of a list, empty the global list and add all the elements of the clone). More generically, I would need to copy the fields of one list to the other. I can do this with reflection, but that's not very pretty. Is there any other way to do it? Problem #2: even if problem #1 is solved, I still have a similar problem with the clone: the application programmer doesn't know I'm giving him a clone and not the global copy. What if he puts the clone in a dictionary? Then at commit there will be some references to the global copy and some to the clone, when in truth they should all point to the same object. I thought about providing a wrapper object that contains both the cloned list and a pointer to the global copy, but the programmer doesn't know about this wrapper, so they're not going to use the pointer at all. The wrapper would be like this: public class Wrapper<T> : T { // This would be the pointer to the global copy. The local data is contained in whatever fields the wrapper inherits from T. private T thisPtr; } I do need this wrapper for comparisons: if I have a dictionary that has an entry with the global copy as key, if I look it up with the clone, like this: dictionary[updatedCloneOfListInTheWriteLog] I need it to return the entry, that is, to think that updatedCloneOfListInTheWriteLog and the global copy are the same thing. For this, I can just override Equals, GetHashCode, operator== and operator!=, no problem. However I still don't know how to solve the case in which the programmer unknowingly inserts a reference to the clone in a dictionary. Problem #3: the wrapper must extend the class of the object it wraps (if it's wrapping MyClassA, it must extend MyClassA) so that it's accepted wherever an object of that class (MyClass) would be accepted. However, that class (MyClassA) may be final. This is pretty horrible :$. Any suggestions? I don't need to use a wrapper, anything you can think of is fine. What I cannot change is the write log (I need to have a write log) and the fact that the programmer doesn't know about the clone. I hope I've made some sense. Feel free to ask for more info if something needs some clearing up. Thanks so much!

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  • My IP seems to be blocked by web hosting server...

    - by shuxer
    Hi All I have a strange problem, i just installed my php web site on a shared hosting, all services were working fine. But after configuring my app i just could visit my web site only once, other attempts gives "The server is taking too long to respond.". But from other IP i can access, but only once, it seems all ip addressess beeing blocked after first visit(even ftp and other services get down, no access at all from the IP), can anyone help to explore this problem ? i don't think that it's my app problem, the app works fine on my local PC. Thanks.

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  • C++ -malign-double compiler flag

    - by Martin
    I need some help on compiler flags in c++. I'm using a library that is a port to linux from windows, that has to be compiled with the -malign-double flag, "for Win32 compatibility". It's my understanding that this mean I absolutely have to compile my own code with this flag as well? How about other .so shared libraries, do they have be recompiled with this flag as well? If so, is there any way around this? I'm a linux newbie (and c++), so even though I tried to recompile all the libraries I'm using for my project, it was just too complicated to recursively find the source for all the libraries and the libraries they're dependent on, and recompile everything.

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  • Just an experiment changing the application data path

    - by Arthur
    When I change the Appication Data path in windows xp registry to a network folder I get this error message on the next system startup: "windows cannot load the user's profile but has logged you with the default profile system" The registry keys are: "[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]" "[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders]" under the names "AppData" and "Local AppData" I dont care if "Windows logins you with the default profile system" but is there a way to disable that message, or change the message timeout form 30 seconds to 0?,or maybe create an script that changes the Application Data path every system startup? P.S. The computer with the shared folder is always on.

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  • How to fetch redio button value and save this value in app.config at installation time?

    - by Ashwin
    i have one question related to add-in installation.......... qus is: i want to combine shared addin for msword created in visual studio 2005, to my project that means if i install my product then addin is also install with this........ and if i uninstall my product add-in is also uninstall........... and i also have another question other than addin i want to give language choosen option at installation time that means if user want to select hindi then our product install in hindi language and if select english than install in english... how this facility give in setup creation plzzz discribe in detail.

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  • How to connect to foreign DB2 database using Python (Ubuntu)

    - by dblips
    sudo easy_install ibm_db-1.0.1-py2.5-linux-i686.egg only works after sudo apt-get install python-dev. Some troubles to find that out in the first place ... Downloaded from IBM site v9.5fp5_linuxia32_dsdriver.tar.gz and pointing IBM_DB_DIR and IBM_DB_LIB to the clidriver(/lib) dir -- is this needed/correct one? -- libdb2.so(.1) is in there... Nevertheless: >>> import ibm_db Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: libdb2.so.1: cannot open shared object file: No such file or directory Any help is very much appreciated!

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  • How prevent anyone from stealing my shared_ptr?

    - by Kyle
    So, I use boost::shared_ptr for all the various reference-counting benefits it provides -- reference counting for starters, obviously, but also the ability to copy, assign, and therefore store in STL Containers. The problem is, if I pass it to just one "malicious" function or object, the object can save the ptr and then I'll never be able to de-allocate it without the foreign function or object nicely relinquishing its ownership. Ultimately, I try to keep object ownership explicit. I accomplish this by having the owner keep the only shared_ptr to the object, and "guest" objects only store weak_ptrs to the object. I really don't want the "shared" part of shared_ptr, but I'm required to use shared_ptr in order to make weak_ptrs. I want to use scoped_ptr, but it's extremely limited since you can't copy it. You can't store it in a container, you can't lend out weak_ptrs from it, and you can't transfer ownership to a new manager. What's the solution?

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  • In Linux, how can I completely disregard the contents of /etc/ld.so.cache?

    - by BillyBBone
    Hi, For the purposes of prototyping a new set of shared libraries in a development sandbox (to which I don't have root access), I'd like to know how to execute a binary while completely overriding the contents of /etc/ld.so.cache, so that none of the system libraries get loaded. How can this be done? I have looked at mechanisms like setting the LD_LIBRARY_PATH environment variable or launching the program wrapped inside /lib/ld-linux.so, but these methods all seem to supplement the loading of libraries from /etc/ld.so.cache, but not override it completely. Help?

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  • Parsing csv line to Java objects

    - by Noobling
    I was wondering if someone here could help me, I can't find a solution for my problem and I have tried everything. What I am trying to do is read and parse lines in a csv file into java objects and I have succeeded in doing that but after it reads all the lines it should insert the lines into the database but it only inserts the 1st line the entire time and I don't no why. When I do a print it shows that it is reading all the lines and placing them in the objects but as soon as I do the insert it wants to insert only the 1st line. Please see my code below: public boolean lineReader(File file){ BufferedReader br = null; String line= ""; String splitBy = ","; storeList = new ArrayList<StoreFile>(); try { br = new BufferedReader(new FileReader(file)); while((line = br.readLine())!=null){ line = line.replace('|', ','); //split on pipe ( | ) String[] array = line.split(splitBy, 14); //Add values from csv to store object //Add values from csv to storeF objects StoreFile StoreF = new StoreFile(); if (array[0].equals("H") || array[0].equals("T")) { return false; } else { StoreF.setRetailID(array[1].replaceAll("/", "")); StoreF.setChain(array[2].replaceAll("/","")); StoreF.setStoreID(array[3].replaceAll("/", "")); StoreF.setStoreName(array[4].replaceAll("/", "")); StoreF.setAddress1(array[5].replaceAll("/", "")); StoreF.setAddress2(array[6].replaceAll("/", "")); StoreF.setAddress3(array[7].replaceAll("/", "")); StoreF.setProvince(array[8].replaceAll("/", "")); StoreF.setAddress4(array[9].replaceAll("/", "")); StoreF.setCountry(array[10].replaceAll("/", "")); StoreF.setCurrency(array[11].replaceAll("/", "")); StoreF.setAddress5(array[12].replaceAll("/", "")); StoreF.setTelNo(array[13].replaceAll("/", "")); //Add stores to list storeList.add(StoreF); } } //print list stores in file printStoreList(storeList); executeStoredPro(storeList); } catch (Exception ex) { nmtbatchservice.NMTBatchService2.LOG.error("An exception accoured: " + ex.getMessage(), ex); //copy to error folder //email } return false; } public void printStoreList(List<StoreFile> storeListToPrint) { for(int i = 0; i <storeListToPrint.size();i++){ System.out.println( storeListToPrint.get(i).getRetailID() + storeListToPrint.get(i).getChain() + storeListToPrint.get(i).getStoreID() + storeListToPrint.get(i).getStoreName() + storeListToPrint.get(i).getAddress1() + storeListToPrint.get(i).getAddress2() + storeListToPrint.get(i).getAddress3() + storeListToPrint.get(i).getProvince() + storeListToPrint.get(i).getAddress4() + storeListToPrint.get(i).getCountry() + storeListToPrint.get(i).getCurrency() + storeListToPrint.get(i).getAddress5() + storeListToPrint.get(i).getTelNo()); } } public void unzip(String source, String destination) { try { ZipFile zipFile = new ZipFile(source); zipFile.extractAll(destination); deleteStoreFile(source); } catch (ZipException ex) { nmtbatchservice.NMTBatchService2.LOG.error("Error unzipping file : " + ex.getMessage(), ex); } } public void deleteStoreFile(String directory) { try { File file = new File(directory); file.delete(); } catch (Exception ex) { nmtbatchservice.NMTBatchService2.LOG.error("An exception accoured when trying to delete file " + directory + " : " + ex.getMessage(), ex); } } public void executeStoredPro(List<StoreFile> storeListToInsert) { Connection con = null; CallableStatement st = null; try { String connectionURL = MSSQLConnectionURL; Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver").newInstance(); con = DriverManager.getConnection(connectionURL, MSSQLUsername, MSSQLPassword); for(int i = 0; i <storeListToInsert.size();i++){ st = con.prepareCall( "IF EXISTS (SELECT * FROM tblPay@RetailStores WHERE StoreID = " + storeListToInsert.get(i).getStoreID() + " AND RetailID = "+ storeListToInsert.get(i).getRetailID() + ")" + " UPDATE tblPay@RetailStores " + " SET RetailID = '" + storeListToInsert.get(i).getRetailID() + "'," + " StoreID = '" + storeListToInsert.get(i).getStoreID() + "'," + " StoreName = '" + storeListToInsert.get(i).getStoreName() + "'," + " TestStore = 0," + " Address1 = '" + storeListToInsert.get(i).getAddress1() + "'," + " Address2 = '" + storeListToInsert.get(i).getAddress2() + "'," + " Address3 = '" + storeListToInsert.get(i).getAddress3() + "'," + " Address4 = '" + storeListToInsert.get(i).getAddress4() + "'," + " Address5 = '" + storeListToInsert.get(i).getAddress5() + "'," + " Province = '" + storeListToInsert.get(i).getProvince() + "'," + " TelNo = '" + storeListToInsert.get(i).getTelNo() + "'," + " Enabled = 1" + " ELSE " + " INSERT INTO tblPay@RetailStores ( [RetailID], [StoreID], [StoreName], [TestStore], [Address1], [Address2], [Address3], [Address4], [Address5], [Province], [TelNo] , [Enabled] ) " + " VALUES " + "('" + storeListToInsert.get(i).getRetailID() + "'," + "'" + storeListToInsert.get(i).getStoreID() + "'," + "'" + storeListToInsert.get(i).getStoreName() + "'," + "0," + "'" + storeListToInsert.get(i).getAddress1() + "'," + "'" + storeListToInsert.get(i).getAddress2() + "'," + "'" + storeListToInsert.get(i).getAddress3() + "'," + "'" + storeListToInsert.get(i).getAddress4() + "'," + "'" + storeListToInsert.get(i).getAddress5() + "'," + "'" + storeListToInsert.get(i).getProvince() + "'," + "'" + storeListToInsert.get(i).getTelNo() + "'," + "1)"); st.executeUpdate(); } con.close(); } catch (Exception ex) { nmtbatchservice.NMTBatchService2.LOG.error("Error executing Stored proc with error : " + ex.getMessage(), ex); nmtbatchservice.NMTBatchService2.mailingQueue.addToQueue(new Mail("[email protected]", "Service Email Error", "An error occurred during Store Import failed with error : " + ex.getMessage())); } } Any advise would be appreciated. Thanks

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  • Custom deleters for std::shared_ptrs

    - by Kristian D'Amato
    Is it possible to use a custom deleter after creating a std::shared_ptr without using new? My problem is that object creation is handled by a factory class and its constructors & destructors are protected, which gives a compile error, and I don't want to use new because of its drawbacks. To elaborate: I prefer to create shared pointers like this, which doesn't let you set a custom deleter (I think): auto sp1 = make_shared<Song>(L"The Beatles", L"Im Happy Just to Dance With You"); Or I can create them like this, which does let met set a deleter through an argument: auto sp2(new Song, MyDeleterFunc); But the second one uses new, which AFAIK isn't as efficient as the top sort of allocation. Maybe this is clearer: is it possible to get the benefits of make_shared<> as well as a custom deleter? Would that mean having to write an allocator?

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  • How to list library dependencies of a non-native binary?

    - by lvella
    When developing for native platform, I can use ldd to list all the shared libraries (.so files) a binary executable I build will try to load upon start-up. But when cross-compiling, I don't know how to get the same information. The ldd is not a normal binutils utility, like strip or ar, that can be built alongside gcc for cross compiling, but instead, it is a cryptic shell script that apparently can only run on native platform. So, using the cross-target binutils tools, is there any way to get a list of the dynamically linked dependency for of a foreign binary?

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  • Does a CPU assigns a value atomically to memory?

    - by Poni
    Hi! A quick question I've been wondering about for some time; Does the CPU assign values atomically, or, is it bit by bit (say for example a 32bit integer). If it's bit by bit, could another thread accessing this exact location get a "part" of the to-be-assigned value? Think of this: I have two threads and one shared "unsigned int" variable (call it "g_uiVal"). Both threads loop. On is printing "g_uiVal" with printf("%u\n", g_uiVal). The second just increase this number. Will the printing thread ever print something that is totally not or part of "g_uiVal"'s value? In code: unsigned int g_uiVal; void thread_writer() { g_uiVal++; } void thread_reader() { while(1) printf("%u\n", g_uiVal); }

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  • How can I support objects larger than a single tile in a 2D tile engine?

    - by Yheeky
    I´m currently working on a 2D Engine containing an isometric tile map. It´s running quite well but I'm not sure if I´ve chosen the best approach for that kind of engine. To give you an idea what I´m thinking about right now, let's have a look at a basic object for a tile map and its objects: public class TileMap { public List<MapRow> Rows = new List<MapRow>(); public int MapWidth = 50; public int MapHeight = 50; } public class MapRow { public List<MapCell> Columns = new List<MapCell>(); } public class MapCell { public int TileID { get; set; } } Having those objects it's just possible to assign a tile to a single MapCell. What I want my engine to support is like having groups of MapCells since I would like to add objects to my tile map (e.g. a house with a size of 2x2 tiles). How should I do that? Should I edit my MapCell object that it may has a reference to other related tiles and how can I find an object while clicking on single MapCells? Or should I do another approach using a global container with all objects in it?

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  • How to store a list of Objects that might change in future?

    - by Amogh Talpallikar
    I have set of Objects of the same class which have different values of their attributes. and I need to find the best match from a function under given scenarios out of these objects. In future these objects might increase as well. Quite similar to the way we have Color class in awt. we have some static color objects in the class with diff rgb values. But in my case say, I need to chose the suitable color out of these static ones based on certain criteria. So should I keep them in an arrayList or enum or keep them as static vars as in case of Colors. because I will need to parse through all of them and decide upon the best match. so I need them in some sort of collection. But in future if I need to add another type I will have to modify the class and add another list.add(object) call for this one and then it will violate the open-close principle. How should I go about it ?

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  • How would you model an objects representing different phases of an entity life cycle?

    - by Ophir Yoktan
    I believe the scenario is common mostly in business workflows - for example: loan management the process starts with a loan application, then there's the loan offer, the 'live' loan, and maybe also finished loans. all these objects are related, and share many fields all these objects have also many fields that are unique for each entity the variety of objects maybe large, and the transformation between the may not be linear (for example: a single loan application may end up as several loans of different types) How would you model this? some options: an entity for each type, each containing the relevant fields (possibly grouping related fields as sub entities) - leads to duplication of data. an entity for each object, but instead of duplicating data, each object has a reference to it's predecessor (the loan doesn't contain the loaner details, but a reference to the loan application) - this causes coupling between the object structure, and the way it was created. if we change the loan application, it shouldn't effect the structure of the loan entity. one large entity, with fields for the whole life cycle - this can create 'mega objects' with many fields. it also doesn't work well when there's a one to many or many to many relation between the phases.

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  • How should I setup my Visual Studio projects/solutions in a Mercurial repository?

    - by Dave A
    At my company we have a few different web apps that each share some common libraries. The Visual Studio setup looks like this. Website 1 Solution Website 1 Shared Library 1 Project Shared Library 2 Project Website 2 Solution Website 2 Shared Library 1 Project Shared Library 2 Project Windows Service Solution Windows Service Project Shared Library 1 Project Shared Library 2 Project Shared Library Solution Shared Library 1 Project Shared Library 2 Project All Projects Solution Website 1 Website 2 Windows Service Project Shared Library 1 Project Shared Library 2 Project We want to start using Mercurial for source control, but I'm still not sure the best way to do it. From what I've read you're supposed to use a separate repository for each project. No problem there, but where do the Visual Studio solution files (.sln) go? Should there be a separate repository with just an .sln file? Ideally the projects that use the shared libraries should all use the same version, and the solution "All Projects Solution" should build without errors, but sometimes we need to branch the shared libraries. What is the best way to do this, and how would the repositories be setup? How do I get a working copy of a certain branch/tag of the Website 1 solution when every project is in a separate repository. Do I have to pull each one separately, or write a script to do it all at once? Can tortoise hg do that for me? Any other tips to make this process easier?

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  • IIS Shared Configuration and Microsoft.Web.Administration.ServerManager Permission problem

    - by Cédric Boivin
    Hello, I got a farm of web server, and a web site ou configure IIS website with the class IISManager70. When I call the OpenRemote method on the ServerManager class i always got an error : The error type is System.UnauthorizedAccessException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 The message is : Retrieving the COM class factory for remote component with CLSID {2B72133B-3F5B-4602-8952-803546CE3344} from machine 10.10.10.101 failed due to the following error: 80070005. Did someone already have this problem and how solve it ? I try to give the domain admin role to my IIS user (impersonate) but dont work

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  • Language-agnostic term for typed things that need memory

    - by FredOverflow
    Is there an accepted general term that subsumes the concepts of variables, class instances and arrays? Basically "any typed thing that needs memory". In C++, such a thing is called an object, but I'm looking for a more language-agnostic term. § 1.8 The C++ object model 1 The constructs in a C++ program create, destroy, refer to, access, and manipulate objects. An object is a region of storage. [...] An object can have a name (Clause 3). An object has a storage duration (3.7) which influences its lifetime (3.8). An object has a type (3.9).

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  • I am trying to deploy my first rails app using Capistrano and am getting an error.

    - by Andrew Bucknell
    My deployment of a rails app with capistrano is failing and I hoping someone can provide me with pointers to troubleshoot. The following is the command output andrew@melb-web:~/projects/rails/guestbook2$ cap deploy:setup * executing `deploy:setup' * executing "mkdir -p /var/www/dev/guestbook2 /var/www/dev/guestbook2/releases /var/www/dev/guestbook2/shared /var/www/dev/guestbook2/shared/system /var/www/dev/guestbook2/shared/log /var/www/dev/guestbook2/shared/pids && chmod g+w /var/www/dev/guestbook2 /var/www/dev/guestbook2/releases /var/www/dev/guestbook2/shared /var/www/dev/guestbook2/shared/system /var/www/dev/guestbook2/shared/log /var/www/dev/guestbook2/shared/pids" servers: ["dev.andrewbucknell.com"] Enter passphrase for /home/andrew/.ssh/id_dsa: Enter passphrase for /home/andrew/.ssh/id_dsa: [dev.andrewbucknell.com] executing command command finished andrew@melb-web:~/projects/rails/guestbook2$ cap deploy:check * executing `deploy:check' * executing "test -d /var/www/dev/guestbook2/releases" servers: ["dev.andrewbucknell.com"] Enter passphrase for /home/andrew/.ssh/id_dsa: [dev.andrewbucknell.com] executing command command finished * executing "test -w /var/www/dev/guestbook2" servers: ["dev.andrewbucknell.com"] [dev.andrewbucknell.com] executing command command finished * executing "test -w /var/www/dev/guestbook2/releases" servers: ["dev.andrewbucknell.com"] [dev.andrewbucknell.com] executing command command finished * executing "which git" servers: ["dev.andrewbucknell.com"] [dev.andrewbucknell.com] executing command command finished * executing "test -w /var/www/dev/guestbook2/shared" servers: ["dev.andrewbucknell.com"] [dev.andrewbucknell.com] executing command command finished You appear to have all necessary dependencies installed andrew@melb-web:~/projects/rails/guestbook2$ cap deploy:migrations * executing `deploy:migrations' * executing `deploy:update_code' updating the cached checkout on all servers executing locally: "git ls-remote [email protected]:/home/andrew/git/guestbook2.git master" Enter passphrase for key '/home/andrew/.ssh/id_dsa': * executing "if [ -d /var/www/dev/guestbook2/shared/cached-copy ]; then cd /var/www/dev/guestbook2/shared/cached-copy && git fetch origin && git reset --hard 369c5e04aaf83ad77efbfba0141001ac90915029 && git clean -d -x -f; else git clone [email protected]:/home/andrew/git/guestbook2.git /var/www/dev/guestbook2/shared/cached-copy && cd /var/www/dev/guestbook2/shared/cached-copy && git checkout -b deploy 369c5e04aaf83ad77efbfba0141001ac90915029; fi" servers: ["dev.andrewbucknell.com"] Enter passphrase for /home/andrew/.ssh/id_dsa: [dev.andrewbucknell.com] executing command ** [dev.andrewbucknell.com :: err] Permission denied, please try again. ** Permission denied, please try again. ** Permission denied (publickey,password). ** [dev.andrewbucknell.com :: err] fatal: The remote end hung up unexpectedly ** [dev.andrewbucknell.com :: out] Initialized empty Git repository in /var/www/dev/guestbook2/shared/cached-copy/.git/ command finished failed: "sh -c 'if [ -d /var/www/dev/guestbook2/shared/cached-copy ]; then cd /var/www/dev/guestbook2/shared/cached-copy && git fetch origin && git reset --hard 369c5e04aaf83ad77efbfba0141001ac90915029 && git clean -d -x -f; else git clone [email protected]:/home/andrew/git/guestbook2.git /var/www/dev/guestbook2/shared/cached-copy && cd /var/www/dev/guestbook2/shared/cached-copy && git checkout -b deploy 369c5e04aaf83ad77efbfba0141001ac90915029; fi'" on dev.andrewbucknell.com andrew@melb-web:~/projects/rails/guestbook2$ The following fragment is from cap -d deploy:migrations Preparing to execute command: "find /var/www/dev/guestbook2/releases/20100305124415/public/images /var/www/dev/guestbook2/releases/20100305124415/public/stylesheets /var/www/dev/guestbook2/releases/20100305124415/public/javascripts -exec touch -t 201003051244.22 {} ';'; true" Execute ([Yes], No, Abort) ? |y| yes * executing `deploy:migrate' * executing "ls -x /var/www/dev/guestbook2/releases" Preparing to execute command: "ls -x /var/www/dev/guestbook2/releases" Execute ([Yes], No, Abort) ? |y| yes /usr/lib/ruby/gems/1.8/gems/capistrano-2.5.17/lib/capistrano/recipes/deploy.rb:55:in `join': can't convert nil into String (TypeError) from /usr/lib/ruby/gems/1.8/gems/capistrano-2.5.17/lib/capistrano/recipes/deploy.rb:55:in `load'

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  • Shared Cookies between WebView and HTTPClient?

    - by Arpit
    An Android app I am building requires web authentication for users to make data calls. In Adobe AIR and later the iPhone, we did this by rendering a login page in a webview-equivalent page and setting a cookie when the user signs in. Subsequent data calls use the same Cookie Jar and so are seen as authenticated. In the Android version, I authenticate the user using a WebView and then once thats done, I make a data call using DefaultHttpClient, however I cant seem to load the data on the second call. Is there some cookie gotcha I am missing? I imagine the HTTPClient and WebView would share the same Cookie space. Am I wrong?

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  • LINQ 4 XML - What is the proper way to query deep in the tree structure?

    - by Keith Barrows
    I have an XML structure that is 4 deep: <?xml version="1.0" encoding="utf-8"?> <EmailRuleList xmlns:xsd="EmailRules.xsd"> <TargetPST name="Tech Communities"> <Parse emailAsList="true" useJustDomain="false" fromAddress="false" toAddress="true"> <EmailRule address="@aspadvice.com" folder="Lists, ASP" saveAttachments="false" /> <EmailRule address="@sqladvice.com" folder="Lists, SQL" saveAttachments="false" /> <EmailRule address="@xmladvice.com" folder="Lists, XML" saveAttachments="false" /> </Parse> <Parse emailAsList="false" useJustDomain="false" fromAddress="false" toAddress="true"> <EmailRule address="[email protected]" folder="Special Interest Groups|Northern Colorado Architects Group" saveAttachments="false" /> <EmailRule address="[email protected]" folder="Support|SpamBayes" saveAttachments="false" /> </Parse> <Parse emailAsList="false" useJustDomain="false" fromAddress="true" toAddress="false"> <EmailRule address="[email protected]" folder="Support|GoDaddy" saveAttachments="false" /> <EmailRule address="[email protected]" folder="Support|No-IP.com" saveAttachments="false" /> <EmailRule address="[email protected]" folder="Discussions|Orchard Project" saveAttachments="false" /> </Parse> <Parse emailAsList="false" useJustDomain="true" fromAddress="true" toAddress="false"> <EmailRule address="@agilejournal.com" folder="Newsletters|Agile Journal" saveAttachments="false"/> <EmailRule address="@axosoft.ccsend.com" folder="Newsletters|Axosoft Newsletter" saveAttachments="false"/> <EmailRule address="@axosoft.com" folder="Newsletters|Axosoft Newsletter" saveAttachments="false"/> <EmailRule address="@cmcrossroads.com" folder="Newsletters|CM Crossroads" saveAttachments="false" /> <EmailRule address="@urbancode.com" folder="Newsletters|Urbancode" saveAttachments="false" /> <EmailRule address="@urbancode.ccsend.com" folder="Newsletters|Urbancode" saveAttachments="false" /> <EmailRule address="@Infragistics.com" folder="Newsletters|Infragistics" saveAttachments="false" /> <EmailRule address="@zdnet.online.com" folder="Newsletters|ZDNet Tech Update Today" saveAttachments="false" /> <EmailRule address="@sqlservercentral.com" folder="Newsletters|SQLServerCentral.com" saveAttachments="false" /> <EmailRule address="@simple-talk.com" folder="Newsletters|Simple-Talk Newsletter" saveAttachments="false" /> </Parse> </TargetPST> <TargetPST name="[Sharpen the Saw]"> <Parse emailAsList="false" useJustDomain="false" fromAddress="false" toAddress="true"> <EmailRule address="[email protected]" folder="Head Geek|Job Alerts" saveAttachments="false" /> <EmailRule address="[email protected]" folder="Social|LinkedIn USMC" saveAttachments="false"/> </Parse> <Parse emailAsList="false" useJustDomain="false" fromAddress="true" toAddress="false"> <EmailRule address="[email protected]" folder="Head Geek|Job Alerts" saveAttachments="false" /> <EmailRule address="[email protected]" folder="Head Geek|Job Alerts" saveAttachments="false" /> <EmailRule address="[email protected]" folder="Social|Cruise Critic" saveAttachments="false"/> </Parse> <Parse emailAsList="false" useJustDomain="true" fromAddress="true" toAddress="false"> <EmailRule address="@moody.edu" folder="Social|5 Love Languages" saveAttachments="false" /> <EmailRule address="@postmaster.twitter.com" folder="Social|Twitter" saveAttachments="false"/> <EmailRule address="@diabetes.org" folder="Physical|American Diabetes Association" saveAttachments="false"/> <EmailRule address="@membership.webshots.com" folder="Social|Webshots" saveAttachments="false"/> </Parse> </TargetPST> </EmailRuleList> Now, I have both an FromAddress and a ToAddress that is parsed from an incoming email. I would like to do a LINQ query against a class set that was deserialized from this XML. For instance: ToAddress = [email protected] FromAddress = [email protected] Query: Get EmailRule.Include(Parse).Include(TargetPST) where address == ToAddress AND Parse.ToAddress==true AND Parse.useJustDomain==false Get EmailRule.Include(Parse).Include(TargetPST) where address == [ToAddress Domain Only] AND Parse.ToAddress==true AND Parse.useJustDomain==true Get EmailRule.Include(Parse).Include(TargetPST) where address == FromAddress AND Parse.FromAddress==true AND Parse.useJustDomain==false Get EmailRule.Include(Parse).Include(TargetPST) where address == [FromAddress Domain Only] AND Parse.FromAddress==true AND Parse.useJustDomain==true I am having a hard time figuring this LINQ query out. I can, of course, loop on all the bits in the XML like so (includes deserialization into objects): XmlSerializer s = new XmlSerializer(typeof(EmailRuleList)); TextReader r = new StreamReader(path); _emailRuleList = (EmailRuleList)s.Deserialize(r); TargetPST[] PSTList = _emailRuleList.Items; foreach (TargetPST targetPST in PSTList) { olRoot = GetRootFolder(targetPST.name); if (olRoot != null) { Parse[] ParseList = targetPST.Items; foreach (Parse parseRules in ParseList) { EmailRule[] EmailRuleList = parseRules.Items; foreach (EmailRule targetFolders in EmailRuleList) { } } } } However, this means going through all these loops for each and every address. It makes more sense to me to query against the Objects. Any tips appreciated!

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  • How to clone objects in NHibernate?

    - by Anry
    How to implement cloning of objects (entities) in NHibernate? In the classes of entities has properties such public virtual IList<Club> Clubs { get; set; } All classes are inherited from BaseObject. I tried to implement using xml serialization, but the interfaces are not serialized. Thank you for your answers!

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  • Storing objects in the array

    - by Ockonal
    Hello, I want to save boost signals objects in the map (association: signal name ? signal object). The signals signature is different, so the second type of map should be boost::any. map<string, any> mSignalAssociation; The question is how to store objects without defining type of new signal signature? typedef boost::signals2::signal<void (int KeyCode)> sigKeyPressed; mSignalAssociation.insert(make_pair("KeyPressed", sigKeyPressed())); // This is what I need: passing object without type definition mSignalAssociation["KeyPressed"] = (typename boost::signals2::signal<void (int KeyCode)>()); // One more trying which won't work. And I don't want use this sigKeyPressed mKeyPressed; mSignalAssociation["KeyPressed"] = mKeyPressed; All this tryings throw the error: /usr/include/boost/noncopyable.hpp: In copy constructor ‘boost::signals2::signal_base::signal_base(const boost::signals2::signal_base&)’: In file included from /usr/include/boost/signals2/detail/signals_common.hpp:17:0, /usr/include/boost/noncopyable.hpp:27:7: error: ‘boost::noncopyable_::noncopyable::noncopyable(const boost::noncopyable_::noncopyable&)’ is private /usr/include/boost/signals2/signal_base.hpp:22:5: error: within this context ---------- /usr/include/boost/signals2/detail/signal_template.hpp: In copy constructor ‘boost::signals2::signal1<void, int&, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void(int)>, boost::function<void(const boost::signals2::connection&, int)>, boost::signals2::mutex>::signal1(const boost::signals2::signal1<void, int, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void(int)>, boost::function<void(const boost::signals2::connection&, int)>, boost::signals2::mutex>&)’: In file included from /usr/include/boost/preprocessor/iteration/detail/iter/forward1.hpp:52:0, /usr/include/boost/signals2/detail/signal_template.hpp:578:5: note: synthesized method ‘boost::signals2::signal_base::signal_base(const boost::signals2::signal_base&)’ first required here from /usr/include/boost/signals2.hpp:16, --------- /usr/include/boost/signals2/preprocessed_signal.hpp: In copy constructor ‘boost::signals2::signal<void(int)>::signal(const boost::signals2::signal<void(int)>&)’: In file included from /usr/include/boost/signals2/signal.hpp:36:0, /usr/include/boost/signals2/preprocessed_signal.hpp:42:5: note: synthesized method ‘boost::signals2::signal1<void, int, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void(int)>, boost::function<void(const boost::signals2::connection&, int)>, boost::signals2::mutex>::signal1(const boost::signals2::signal1<void, int, boost::signals2::optional_last_value<void>, int, std::less<int>, boost::function<void(int)>, boost::function<void(const boost::signals2::connection&, int)>, boost::signals2::mutex>&)’ first required here from /home/ockonal/Workspace/Projects/Pseudoform-2/include/Core/Systems.hpp:6,

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  • SQLCEException was unhandled: Internal Error: Cannot open the shared memory region

    - by dwaz
    I am trying to do a TableAdapter.Fill(dataTable) and it fails with the above error. Here is the code in Zenware.DataSet.Designer.cs [global::System.Diagnostics.DebuggerNonUserCodeAttribute()] [global::System.ComponentModel.DataObjectMethodAttribute(global::System.ComponentModel.DataObjectMethodType.Fill, true)] public virtual int Fill(ZenwareDataSet.BatchPDADataTable dataTable) { this.Adapter.SelectCommand = this.CommandCollection[0]; if ((this.ClearBeforeFill == true)) { dataTable.Clear(); } int returnValue = this.Adapter.Fill(dataTable); // <---Fails here. return returnValue; } This is generated code. Maybe there is something that I need to change? I am wondering if my app has multiple connections to the database. What can this be? Thanks for any help you can provide. Windows Mobile 6.1 device (Trimble Juno SB) SQLServerCompact 3.5 Service Pack 2 Microsoft .NET CF 3.5

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