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• Testing a scoped find in a Rails controller with RSpec

  - by Joseph DelCioppio

  I've got a controller called SolutionsController whose index action is different depending on the value of params[:user_id]. If its nil, then it simply displays all of the solutions on my site, but if its not nil, then it displays all of the solutions for the given user id. Here it is: def index if(params[:user_id]) @solutions = @user.solutions.find(:all) else @solutions = Solution.find(:all) end end and @user is determined like this: private def load_user if(params[:user_id ]) @user = User.find(params[:user_id]) end end I've got an Rspec test to test the index action if the user is nil: describe "GET index" do context "when user_id is nil" do it "should find all of the solutions" do Solution.should_receive(:find).with(:all).and_return(@solutions) get :index end end end however, can someone tell me how I write a similar test for the other half of my controller, when the user id isn't nil? Something like: describe "GET index" do context "when user_id isn't nil" do before(:each) do @user = Factory.create(:user) @solutions = 7.times{Factory.build(:solution, :user => @user)} @user.stub!(:solutions).and_return(@solutions) end it "should find all of the solutions owned by a user" do @user.should_receive(:solutions).and_return(@solutions) get :index, :user_id => @user.id end end end But that doesn't work. Can someone help me out? Joe

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• Using a Session Scoped Bean

  - by jboyd

  The following code is returning null: private MyAppUser getMyAppUser(HttpSession session) { MyAppUser myAppUser = (MyAppUser) session.getAttribute("myAppUserManager"); return myAppUser; } Despite the fact that I have the following in my context: <bean id="myAppUserManager" class="com.myapp.profile.MyAppUser" scope="session"/> This doesn't make any sense to me, the "myAppUser" bean is a bean that absolutely can never be null, and I need to be able to reference it from controllers, I don't need it in services or repositories, just controllers, but it doesn't seem to be getting stored in the session, the use case is extremely simple, but I haven't been able to get to the bottom of what's wrong, or come up with a good workaround

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• C++: best way to implement globally scoped data

  - by bobobobo

  I'd like to make program-wide data in a C++ program, without running into pesky LNK2005 errors when all the source files #includes this "global variable repository" file. I have 2 ways to do it in C++, and I'm asking which way is better. The easiest way to do it in C# is just public static members. C#: public static class DataContainer { public static Object data1 ; public static Object data2 ; } In C++ you can do the same thing C++ global data way#1: class DataContainer { public: static Object data1 ; static Object data2 ; } ; Object DataContainer::data1 ; Object DataContainer::data2 ; However there's also extern C++ global data way #2: class DataContainer { public: Object data1 ; Object data2 ; } ; extern DataContainer * dataContainer ; // instantiate in .cpp file In C++ which is better, or possibly another way which I haven't thought about? The solution has to not cause LNK2005 "object already defined" errors.

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• JQuery will not set a higher scoped object in callback

  - by user344666

  Hello, I have a jquery callback function. In that function I want it to change the value of a varible that is in a higher scope, for somereason it is not doing that. Here is the code. Thanks function add() { var returnedData = { my_id: 0 }; $.post("add_event.php", { event : toSendText }, function(data) {returnedData.my_id = 5;}, "json"); if(add_page == true){ alert(returnedData.my_id); window.open('content-list.php?cal_id='); } }

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• AnnotationSessionFactoryBean and singleton scoped bean (Spring framework)

  - by EugeneP

  I define a bean of type AnnotationSessionFactoryBean for using in a web-app. If I do not explicitly define it as NOT singleton, it must be singleton. Now, it is bound to the current thread. It means it cannot be a singleton. Can you explain this puzzle?

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• C++: why a self pointer of a struct automatically changes to void*

  - by Stone

  struct ptr{ int node; ptr *next; ptr(){} ptr(int _node, ptr *_next){ node=_node; next=_next; } }; struct list_t{ ptr *sht; int size; void push(int node){ size++; sht=new ptr(node,sht); } }shthead[100001], comp[200001], tree[200001]; The struct ptr is a smart pointer, be used as a linked list. But when I debug the code in gdb, I found that the ptr*'s were all converted to void*. GDB output: (gdb) pt ptr type = struct ptr { int node; void *next; public: ptr(void); ptr(int, void *); } However, I can still see the data of the struct if I covert them back to ptr* in gdb. What's the reason for this please?

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• Testing local scoped object with mockito without refactoring

  - by supertonsky

  Say I have the following code: public class ClassToTest { AnotherClass anotherClass; public void methodToTest( int x, int y ) { int z = x + y anotherClass.receiveSomething( z ); } } public class AnotherClass { public void receiveSomething( int z ) {.. do something.. } } I want to make assertion on the value of the variable z. How do I do this? Variables x, y, and z could be some other Java class types, and I just used "int" for simplicity.

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• Testing a Non-blocking Queue

  - by jsw

  I've ported the non-blocking queue psuedocode here to C#. The code below is meant as a near verbatim copy of the paper. What approach would you take to test the implementation? Note: I'm running in VS2010 so I don't have CHESS support yet. using System.Threading; #pragma warning disable 0420 namespace ConcurrentCollections { class QueueNodePointer<T> { internal QueueNode<T> ptr; internal QueueNodePointer() : this(null) { } internal QueueNodePointer(QueueNode<T> ptr) { this.ptr = ptr; } } class QueueNode<T> { internal T value; internal QueueNodePointer<T> next; internal QueueNode() : this(default(T)) { } internal QueueNode(T value) { this.value = value; this.next = new QueueNodePointer<T>(); } } public class ConcurrentQueue<T> { private volatile int count = 0; private QueueNodePointer<T> qhead = new QueueNodePointer<T>(); private QueueNodePointer<T> qtail = new QueueNodePointer<T>(); public ConcurrentQueue() { var node = new QueueNode<T>(); node.next.ptr = null; this.qhead.ptr = this.qtail.ptr = node; } public int Count { get { return this.count; } } public void Enqueue(T value) { var node = new QueueNode<T>(value); node.next.ptr = null; QueueNodePointer<T> tail; QueueNodePointer<T> next; while (true) { tail = this.qtail; next = tail.ptr.next; if (tail == this.qtail) { if (next.ptr == null) { var newtail = new QueueNodePointer<T>(node); if (Interlocked.CompareExchange(ref tail.ptr.next, newtail, next) == next) { Interlocked.Increment(ref this.count); break; } else { Interlocked.CompareExchange(ref this.qtail, new QueueNodePointer<T>(next.ptr), tail); } } } } Interlocked.CompareExchange(ref this.qtail, new QueueNodePointer<T>(node), tail); } public T Dequeue() { T value; while (true) { var head = this.qhead; var tail = this.qtail; var next = head.ptr.next; if (head == this.qhead) { if (head.ptr == tail.ptr) { if (next.ptr == null) { return default(T); } Interlocked.CompareExchange(ref this.qtail, new QueueNodePointer<T>(next.ptr), tail); } else { value = next.ptr.value; var newhead = new QueueNodePointer<T>(next.ptr); if (Interlocked.CompareExchange(ref this.qhead, newhead, head) == head) { Interlocked.Decrement(ref this.count); break; } } } } return value; } } } #pragma warning restore 0420

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• C problem, left of '->' must point to class/struct/union/generic type ??

  - by Patrick

  Hello! Trying to understand why this doesn't work. I keep getting the following errors: left of '-nextNode' must point to class/struct/union/generic type (Also all the lines with a - in the function new_math_struct) Header file #ifndef MSTRUCT_H #define MSTRUCT_H #define PLUS 0 #define MINUS 1 #define DIVIDE 2 #define MULTIPLY 3 #define NUMBER 4 typedef struct math_struct { int type_of_value; int value; int sum; int is_used; struct math_struct* nextNode; } ; typedef struct math_struct* math_struct_ptr; #endif C file int get_input(math_struct_ptr* startNode) { /* character, input by the user */ char input_ch; char* input_ptr; math_struct_ptr* ptr; math_struct_ptr* previousNode; input_ptr = &input_ch; previousNode = startNode; /* as long as input is not ok */ while (1) { input_ch = get_input_character(); if (input_ch == ',') // Carrage return return 1; else if (input_ch == '.') // Illegal character return 0; if (input_ch == '+') ptr = new_math_struct(PLUS, 0); else if (input_ch == '-') ptr = new_math_struct(MINUS, 0); else if (input_ch == '/') ptr = new_math_struct(DIVIDE, 0); else if (input_ch == '*') ptr = new_math_struct(MULTIPLY, 0); else ptr = new_math_struct(NUMBER, atoi(input_ptr)); if (startNode == NULL) { startNode = previousNode = ptr; } else { previousNode->nextNode = ptr; previousNode = ptr; } } return 0; } math_struct_ptr* new_math_struct(int symbol, int value) { math_struct_ptr* ptr; ptr = (math_struct_ptr*)malloc(sizeof(math_struct_ptr)); ptr->type_of_value = symbol; ptr->value = value; ptr->sum = 0; ptr->is_used = 0; return ptr; } char get_input_character() { /* character, input by the user */ char input_ch; /* get the character */ scanf("%c", &input_ch); if (input_ch == '+' || input_ch == '-' || input_ch == '*' || input_ch == '/' || input_ch == ')') return input_ch; // A special character else if (input_ch == '\n') return ','; // A carrage return else if (input_ch < '0' || input_ch > '9') return '.'; // Not a number else return input_ch; // Number } The header for the C file just contains a reference to the struct header and the definitions of the functions. Language C.

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• Same address, multiple shared_ptr counters, is it forbidden by C++ standard?

  - by icando

  Suppose I have some needs to do the following (This is just some imaginative code for discussion of the C++ standard, thus I won't discuss why I design it this way, so don't bother me something like: your design is wrong.) T* ptr = new T; shared_ptr<T> p(ptr); shared_ptr<T> q(ptr, SomeDeleterThatDoesnotDeleteButDoSomeOtherStuff()); Suppose the logic guarantees that p or some of its copies lives longer than any copies of q, so practically there won't be any problem. My question is, is it forbidden by C++ standard, e.g. explicitly stated as UB by C++ standard, that different shared_ptr counters share the same address? Thanks.

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• C++ static classes & shared_ptr memory leaks

  - by HardCoder1986

  Hello! I can't understand why does the following code produce memory leaks (I am using boost::shared_ptr with static class instance). Could someone help me? #include <crtdbg.h> #include <boost/shared_ptr.hpp> using boost::shared_ptr; #define _CRTDBG_MAP_ALLOC #define NEW new(_NORMAL_BLOCK, __FILE__, __LINE__) static struct myclass { static shared_ptr<int> ptr; myclass() { ptr = shared_ptr<int>(NEW int); } } myclass_instance; shared_ptr<int> myclass::ptr; int main() { _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF | _CRTDBG_CHECK_ALWAYS_DF | _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG)); return 0; }

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• What is causing Null Pointer Exception in the following code in java? [migrated]

  - by Joe

  When I run the following code I get Null Pointer Exception. I cannot figure out why that is happening. Need Help. public class LinkedList<T> { private Link head = null; private int length = 0; public T get(int index) { return find(index).item; } public void set(int index, T item) { find(index).item = item; } public int length() { return length; } public void add(T item) { Link<T> ptr = head; if (ptr == null) { // empty list so append to head head = new Link<T>(item); } else { // non-empty list, so locate last link while (ptr.next != null) { ptr = ptr.next; } ptr.next = new Link<T>(item); } length++; // update length cache } // traverse list looking for link at index private Link<T> find(int index) { Link<T> ptr = head; int i = 0; while (i++ != index) { if(ptr!=null) { ptr = ptr.next; } } return ptr; } private static class Link<S> { public S item; public Link<S> next; public Link(S item) { this.item = item; } } public static void main(String[] args) { new LinkedList<String>().get(1); } }

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• Building a world matrix

  - by DeadMG

  When building a world projection matrix from scale, rotate, translate matrices, then the translation matrix must be the last in the process, right? Else you'll be scaling or rotating your translations. Do scale and rotate need to go in a specific order? Right now I've got std::for_each(objects.begin(), objects.end(), [&, this](D3D93DObject* ptr) { D3DXMATRIX WVP; D3DXMATRIX translation, rotationX, rotationY, rotationZ, scale; D3DXMatrixTranslation(&translation, ptr->position.x, ptr->position.y, ptr->position.z); D3DXMatrixRotationX(&rotationX, ptr->rotation.x); D3DXMatrixRotationY(&rotationY, ptr->rotation.y); D3DXMatrixRotationZ(&rotationZ, ptr->rotation.z); D3DXMatrixScaling(&translation, ptr->scale.x, ptr->scale.y, ptr->scale.z); WVP = rotationX * rotationY * rotationZ * scale * translation * ViewProjectionMatrix; });

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• How to fix “Error: This solution contains no resources scoped for a Web application and cannot be deployed to a particular Web application.”

  - by ybbest

  Problem: When I try to deploy my custom wsp solution to a specific web application, I got the error below: This solution contains no resources scoped for a Web application and cannot be deployed to a particular Web application. Analysis: The error message itself explains why you cannot deploy the solution to a web application. However if you do not like to deploy the solution to all the web applications and only like to deploy your solution to a specific application , you need to change the solution settings Assembly Deployment Target from GlobalAssemblyCache to WebApplication. From: TO: Solution: After you change the Assembly Deployment Target and run the script again, you will have the solution deployed successfully. References: http://blogs.msdn.com/b/jjameson/archive/2007/06/17/issues-deploying-sharepoint-solution-packages.aspx

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• Need some help deciphering a line of assembler code, from .NET JITted code

  - by Lasse V. Karlsen

  In a C# constructor, that ends up with a call to this(...), the actual call gets translated to this: 0000003d call dword ptr ds:[199B88E8h] What is the DS register contents here? I know it's the data-segment, but is this call through a VMT-table or similar? I doubt it though, since this(...) wouldn't be a call to a virtual method, just another constructor. I ask because the value at that location seems to be bad in some way, if I hit F11, trace into (Visual Studio 2008), on that call-instruction, the program crashes with an access violation. The code is deep inside a 3rd party control library, where, though I have the source code, I don't have the assemblies compiled with enough debug information that I can trace it through C# code, only through the disassembler, and then I have to match that back to the actual code. The C# code in question is this: public AxisRangeData(AxisRange range) : this(range, range.Axis) { } Reflector shows me this IL code: .maxstack 8 L_0000: ldarg.0 L_0001: ldarg.1 L_0002: ldarg.1 L_0003: callvirt instance class DevExpress.XtraCharts.AxisBase DevExpress.XtraCharts.AxisRange::get_Axis() L_0008: call instance void DevExpress.XtraCharts.Native.AxisRangeData::.ctor(class DevExpress.XtraCharts.ChartElement, class DevExpress.XtraCharts.AxisBase) L_000d: ret It's that last call there, to the other constructor of the same class, that fails. The debugger never surfaces inside the other method, it just crashes. The disassembly for the method after JITting is this: 00000000 push ebp 00000001 mov ebp,esp 00000003 sub esp,14h 00000006 mov dword ptr [ebp-4],ecx 00000009 mov dword ptr [ebp-8],edx 0000000c cmp dword ptr ds:[18890E24h],0 00000013 je 0000001A 00000015 call 61843511 0000001a mov eax,dword ptr [ebp-4] 0000001d mov dword ptr [ebp-0Ch],eax 00000020 mov eax,dword ptr [ebp-8] 00000023 mov dword ptr [ebp-10h],eax 00000026 mov ecx,dword ptr [ebp-8] 00000029 cmp dword ptr [ecx],ecx 0000002b call dword ptr ds:[1889D0DCh] // range.Axis 00000031 mov dword ptr [ebp-14h],eax 00000034 push dword ptr [ebp-14h] 00000037 mov edx,dword ptr [ebp-10h] 0000003a mov ecx,dword ptr [ebp-0Ch] 0000003d call dword ptr ds:[199B88E8h] // this(range, range.Axis)? 00000043 nop 00000044 mov esp,ebp 00000046 pop ebp 00000047 ret Basically what I'm asking is this: What the purpose of the ds:[ADDR] indirection here? VMT-table is only for virtual isn't it? and this is constructor Could the constructor have yet to be JITted, which could mean that the call would actually call through a JIT shim? I'm afraid I'm in deep water here, so anything might and could help. Edit: Well, the problem just got worse, or better, or whatever. We are developing the .NET feature in a C# project in a Visual Studio 2008 solution, and debugging and developing through Visual Studio. However, in the end, this code will be loaded into a .NET runtime hosted by a Win32 Delphi application. In order to facilitate easy experimentation of such features, we can also configure the Visual Studio project/solution/debugger to copy the produced dll's to the Delphi app's directory, and then execute the Delphi app, through the Visual Studio debugger. Turns out, the problem goes away if I run the program outside of the debugger, but during debugging, it crops up, every time. Not sure that helps, but since the code isn't slated for production release for another 6 months or so, then it takes some of the pressure off of it for the test release that we have soon. I'll dive into the memory parts later, but probably not until over the weekend, and post a followup.

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• Can we have a component-scoped bean in a JSF2 composite component?

  - by Pradyumna

  Hi, I was wondering how I could create "component-scoped" beans, or so-to-say, "local variables inside a composite component" that are private to the instance of the composite component, and live as long as that instance lives. Below are more details, explained with an example: Suppose there is a "calculator" component - something that allows users to type in a mathematical expression, and evaluates its value. Optionally, it also plots the associated function. I can make a composite component that has: a text box for accepting the math expression two buttons called "Evaluate", and "Plot" another nested component that plots the function It is evidently a self-contained piece of function; so that somebody who wants to use it may just say <math:expressionEvaluator /> But obviously, the implementation would need a java object - something that evaluates the expression, something that computes the plot points, etc. - and I imagine it can be a bean - scoped just for this instance of this component, not a view-scoped or request-scoped bean that is shared across all instances of the component. How do I create such a bean? Is that even possible with composite components?

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• C++/Qt - Memory allocation question

  - by HardCoder1986

  Hello! I recently started investigating Qt for myself and have the following question: Suppose I have some QTreeWidget* widget. At some moment I want to add some items to it and this is done via the following call: QList<QTreeWidgetItem*> items; // Prepare the items QTreeWidgetItem* item1 = new QTreeWidgetItem(...); QTreeWidgetItem* item2 = new QTreeWidgetItem(...); items.append(item1); items.append(item2); widget->addTopLevelItems(items); So far it looks ok, but I don't actually understand who should control the objects' lifetime. I should explain this with an example: Let's say, another function calls widget->clear();. I don't know what happens beneath this call but I do think that memory allocated for item1 and item2 doesn't get disposed here, because their ownage wasn't actually transfered. And, bang, we have a memory leak. The question is the following - does Qt have something to offer for this kind of situation? I could use boost::shared_ptr or any other smart pointer and write something like shared_ptr<QTreeWidgetItem> ptr(new QTreeWidgetItem(...)); items.append(ptr.get()); but I don't know if the Qt itself would try to make explicit delete calls on my pointers (which would be disastrous since I state them as shared_ptr-managed). How would you solve this problem? Maybe everything is evident and I miss something really simple?

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• My datacenter is unable to add PTR/rDNS record, then how can I prevent the mail outgoing from going to spam folder?

  - by gilzero

  I am having problem that mail sent out from my server all goes to recipient's spam folder. I am running Drupal sites on Linux server. CentOS w/ cPanel. Our users cannot receive email as the mail went to the spam folder. (such as registration email, contact form email) I was advised that I need to have PTR/rDNS record added for my host. I then contact my datacenter to add PTR/rDNS thing, unfortunately, the datacenter said they are unable to do it. So what can I do? Any other ways I can fix the problem? Thank you!

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• I get the following error when i open any progaram in vi please help me

  - by Adithya Chakilam

  E325: ATTENTION Found a swap file by the name ".ptr.c.swp" owned by: honey dated: Sat Oct 26 12:49:38 2013 file name: ~honey/ptr.c modified: YES user name: honey host name: honey-desktop process ID: 2542 While opening file "ptr.c" dated: Sun Nov 3 09:05:49 2013 NEWER than swap file! (1) Another program may be editing the same file. If this is the case, be careful not to end up with two different instances of the same file when making changes. Quit, or continue with caution. (2) An edit session for this file crashed. If this is the case, use ":recover" or "vim -r ptr.c" to recover the changes (see ":help recovery"). If you did this already, delete the swap file ".ptr.c.swp" to avoid this message. "ptr.c" 9L, 136C Press ENTER or type command to continue

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• Hundreds of unknown entries in Linux logwatch

  - by Saif Bechan

  I have a dedicated server which runs centos. Today i got an email from loginwatch on my server with hundreds of lines of 'errors'. I don't really know what they are becasue i am fairly new at this. The lines are in a few sections, I will display the first 10 of all of them, i hope someone can help me fix these problems. --------------------- Named Begin ------------------------ **Unmatched Entries** client 216.146.46.136 notify question section contains no SOA: 8 Time(s) client 92.114.98.10 query (cache) 'adobe.com/A/IN' denied: 4 Time(s) network unreachable resolving '11.254.75.75.in-addr.arpa/PTR/IN': 2001:7fd::1#53: 1 Time(s) network unreachable resolving '136.176.97.93.in-addr.arpa/PTR/IN': 2001:13c7:7002:3000::11#53: 1 Time(s) network unreachable resolving '136.176.97.93.in-addr.arpa/PTR/IN': 2001:500:13::c7d4:35#53: 1 Time(s) network unreachable resolving '136.176.97.93.in-addr.arpa/PTR/IN': 2001:500:2e::1#53: 2 Time(s) network unreachable resolving '136.176.97.93.in-addr.arpa/PTR/IN': 2001:610:240:0:53::193#53: 1 Time(s) network unreachable resolving '136.176.97.93.in-addr.arpa/PTR/IN': 2001:610:240:0:53::3#53: 1 Time(s) network unreachable resolving '136.176.97.93.in-addr.arpa/PTR/IN': 2001:660:3006:1::1:1#53: 1 Time(s) network unreachable resolving '136.176.97.93.in-addr.arpa/PTR/IN': 2001:6b0:7::2#53: 1 Time(s) network unreachable resolving '136.176.97.93.in-addr.arpa/PTR/IN': 2001:dc0:1:0:4777::140#53: 1 Time(s) network unreachable resolving '136.176.97.93.in-addr.arpa/PTR/IN': 2001:dc0:2001:a:4608::59#53: 1 Time(s) network unreachable resolving '146.250.19.67.in-addr.arpa/PTR/IN': 2001:5a0:10::2#53: 1 Time(s) network unreachable resolving '149.207.106.87.in-addr.arpa/PTR/IN': 2001:7fd::1#53: 1 Time(s) network unreachable resolving '178.62.24.195.in-addr.arpa/PTR/IN': 2001:7fd::1#53: 1 Time(s) this goes on for hundreds of lines with all different domain names. --------------------- pam_unix Begin ------------------------ Failed logins from: 78.86.126.211 (78-86-126-211.zone2.bethere.co.uk): 111 times 93.97.176.136 (93-97-176-136.dsl.cnl.uk.net): 113 times 121.14.145.32: 136 times 190.152.69.5: 248 times 209.160.72.15: 572 times 210.26.48.35: 2 times 212.235.111.224 (DSL212-235-111-224.bb.netvision.net.il): 140 times 218.206.25.29: 140 times Illegal users from: 78.86.126.211 (78-86-126-211.zone2.bethere.co.uk): 2665 times 93.97.176.136 (93-97-176-136.dsl.cnl.uk.net): 2539 times 121.14.145.32: 116 times 190.152.69.5: 34 times 209.160.72.15: 324 times 218.206.25.29: 8051 times proftpd: Unknown Entries: session opened for user cent_ftp by (uid=0): 15 Time(s) session closed for user cent_ftp: 14 Time(s) sshd: Authentication Failures: unknown (218.206.25.29): 8051 Time(s) unknown (78-86-126-211.zone2.bethere.co.uk): 2665 Time(s) unknown (93.97.176.136): 2539 Time(s) root (209.160.72.15): 558 Time(s) unknown (209.160.72.15): 324 Time(s) root (190.152.69.5): 246 Time(s) unknown (121.14.145.32): 116 Time(s) root (121.14.145.32): 106 Time(s) root (dsl212-235-111-224.bb.netvision.net.il): 70 Time(s) root (93.97.176.136): 44 Time(s) root (78-86-126-211.zone2.bethere.co.uk): 37 Time(s) unknown (190.152.69.5): 34 Time(s) mysql (121.14.145.32): 30 Time(s) nobody (218.206.25.29): 26 Time(s) mail (218.206.25.29): 24 Time(s) news (218.206.25.29): 24 Time(s) root (218.206.25.29): 24 Time(s) --------------------- SSHD Begin ------------------------ **Unmatched Entries** pam_succeed_if(sshd:auth): error retrieving information about user tavi : 2 time(s) pam_succeed_if(sshd:auth): error retrieving information about user pam : 2 time(s) pam_succeed_if(sshd:auth): error retrieving information about user konchog : 1 time(s) pam_succeed_if(sshd:auth): error retrieving information about user stavrum : 2 time(s) pam_succeed_if(sshd:auth): error retrieving information about user rachel : 1 time(s) pam_succeed_if(sshd:auth): error retrieving information about user affiliates : 24 time(s) pam_succeed_if(sshd:auth): error retrieving information about user nen : 1 time(s) pam_succeed_if(sshd:auth): error retrieving information about user cobra : 1 time(s) pam_succeed_if(sshd:auth): error retrieving information about user pass : 7 time(s) pam_succeed_if(sshd:auth): error retrieving information about user hacer : 1 time(s) pam_succeed_if(sshd:auth): error retrieving information about user chung : 1 time(s) pam_succeed_if(sshd:auth): error retrieving information about user zainee : 1 time(s) pam_succeed_if(sshd:auth): error retrieving information about user radu : 2 time(s) pam_succeed_if(sshd:auth): error retrieving information about user alka : 4 time(s) pam_succeed_if(sshd:auth): error retrieving information about user albert : 5 time(s) pam_succeed_if(sshd:auth): error retrieving information about user turcia : 2 time(s) pam_succeed_if(sshd:auth): error retrieving information about user cordell : 2 time(s) pam_succeed_if(sshd:auth): error retrieving information about user silver : 2 time(s) pam_succeed_if(sshd:auth): error retrieving information about user dragon : 3 time(s) If someone wants to see the whole log i can upload it somewhere. Am i being hacked, what is this all?? I hope someone can help me, this does not look good at all.

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• ping: unknown host google.com

  - by Tar

  Relevant output: /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 servers_ip_address server.2006scape.com server /etc/resolv.conf search 2006scape.com #Generated by NetworkManager nameserver 8.8.8.8 nameserver 8.8.4.4 Some stuff from tcpdump 07:46:28.795843 IP server_ip.42841 > 8.8.4.4.domain: 60253+ PTR? 87.127.104.87.in-addr.arpa. (44) 07:46:28.795980 IP server_ip.54001 > 8.8.4.4.domain: 7390+ PTR? 60.187.80.98.in-addr.arpa. (43) 07:46:28.804029 IP server_ip.59667 > 8.8.4.4.domain: 58876+ PTR? 134.154.161.72.in-addr.arpa. (45) 07:46:28.884171 IP server_ip.46255 > 8.8.4.4.domain: 63027+ PTR? 195.156.251.84.in-addr.arpa. (45) 07:46:28.884217 IP server_ip.35426 > 8.8.4.4.domain: 10538+ PTR? 118.3.182.166.in-addr.arpa. (44) 07:46:28.884253 IP server_ip.53635 > 8.8.4.4.domain: 29928+ PTR? 230.94.81.83.in-addr.arpa. (43) 07:46:28.884286 IP server_ip.45787 > 8.8.4.4.domain: 41151+ PTR? 18.32.223.121.in-addr.arpa. (44) 07:46:28.946045 IP server_ip.47246 > 8.8.4.4.domain: 43103+ PTR? 81.70.251.84.in-addr.arpa. (43) 07:46:28.946066 IP server_ip.33208 > 8.8.4.4.domain: 61117+ PTR? 69.170.184.71.in-addr.arpa. (44) Anyone have any input as to what is causing this?

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• Why does ICEfaces send dispose-window request on page unload when using view-scoped bean?

  - by woflrevo

  in our application ICEfaces always sends a dispose-window request just before navigating to another JSF Page. as much as i understand this should not happen when having org.icefaces.lazyWindowScope set to true and there is no window-scoped bean involved in current request. but it happens on each link and makes our UI less responsive. but we don't have any window-scoped bean in our application. is that a bug in icefaces that the dispose request is sent when using view-scoped beans? Is it possible to disable? ViewScope is defined in JSF not in ICEfaces, it should work without this dispose request i guess... @ManagedBean(name="viewScopeBean") @ViewScoped public class ViewScopeBean { public void doSomething(){ // } } And here the example jsf: <ice:form> <ice:commandButton value="doSomething" action="#{viewScopeBean.doSomething}"/> <h:link outcome="index" value="Link to same page"/> </ice:form> To reproduce do the following using the code above: open firebug's net tab and activate persist option click doSomething-Button click "link to same page" = dispose-window will be send before navigation Dispose Request Parameters: ice.submit.type=ice.dispose.window ice.window=4guthcbue javax.faces.ViewState=-8138151632882151449%3A-6709064564386098402 Environment: ICEfaces-EE 2.0.0.GA ICEpush-EE 2.0.0.GA Mojarra 2.1.1 JRockit 1.6.0_22 WebLogic Server 10.3.4.0 ICEfaces Configuration: org.icefaces.render.auto: true [default] org.icefaces.autoid: true [default] org.icefaces.aria.enabled: true [default] org.icefaces.blockUIOnSubmit: false [default] org.icefaces.compressDOM: false [default] org.icefaces.compressResources: true [default] org.icefaces.connectionLostRedirectURI: /pages/main.jsf org.icefaces.deltaSubmit: false [default] org.icefaces.lazyPush: true [default] org.icefaces.sessionExpiredRedirectURI: /pages/main.jsf org.icefaces.standardFormSerialization: false [default] org.icefaces.strictSessionTimeout: false [default] org.icefaces.windowScopeExpiration = 1000 [default] org.icefaces.mandatoryResourceConfiguration: null [default] org.icefaces.uniqueResourceURLs: true [default] org.icefaces.lazyWindowScope: true [default] org.icefaces.disableDefaultErrorPopups: false [default]

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• Why there is no scoped locks for multiple mutexes in C++0x or Boost.Thread?

  - by Vicente Botet Escriba

  C++0x thread library or Boost.thread define non-member variadic template function that lock all lock avoiding dead lock. template <class L1, class L2, class... L3> void lock(L1&, L2&, L3&...); While this function avoid help to deadlock, the standard do not includes the associated scoped lock to write exception safe code. { std::lock(l1,l2); // do some thing // unlock li l2 exception safe } That means that we need to use other mechanism as try-catch block to make exception safe code or define our own scoped lock on multiple mutexes ourselves or even do that { std::lock(l1,l2); std::unique_lock lk1(l1, std::adopted); std::unique_lock lk2(l2, std::adopted); // do some thing // unlock li l2 on destruction of lk1 lk2 } Why the standard doesn't includes a scoped lock on multiple mutexes of the same type, as for example { std::array_unique_lock<std::mutex> lk(l1,l2); // do some thing // unlock l1 l2 on destruction of lk } or tuples of mutexes { std::tuple_unique_lock<std::mutex, std::recursive_mutex> lk(l1,l2); // do some thing // unlock l1 l2 on destruction of lk } Is there something wrong on the design?

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• GWT + Seam, cannot fetch scoped beans from gwt servlet in seam resource servlet.

  - by David Göransson

  Hello all I am trying to get session and conversation scoped beans to a gwt servlet in the seam resource servlet. I have a conversation scoped bean: @Name ("viewFormCopyAction") @Scope (ScopeType.CONVERSATION) public class ViewFormCopyAction {} and a session scoped bean: @Name ("authenticator") @Scope (ScopeType.SESSION) public class AuthenticatorAction {} There is a RemoteService interface: @RemoteServiceRelativePath ("strokesService") public interface StrokesService extends RemoteService { public Position getPosition (int conversationId); } with corresponding async interface: public interface StrokesServiceAsync extends RemoteService { public void getPosition (int conversationId, AsyncCallback callback); } and implementation: @Name ("com.web.actions.forms.gwt.client.StrokesService") @Scope (ScopeType.EVENT) public class StrokesServiceImpl implements StrokesService { @In Manager manager; @Override @WebRemote public Position getPosition (int conversationId) { manager.switchConversation( "" + conversationId ); ViewFormCopyAction vfca = (ViewFormCopyAction) Component.getInstance( "viewFormCopyAction" ); AuthenticatorAction aa = (AuthenticatorAction) Component.getInstance( "authenticator" ); return null; } } The gwt page is within an IFrame in a regular seam page and the conversationId is propagted with the src attribute of the IFrame. Both bean objects end up with only null values. Can anyone see anything wrong with the code? I know that I could use strings instead of the int, but never mind that at this point.

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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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