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  • XML/RDF to Java Objects with XSD

    - by bmucklow
    So here's the scenario...I have an XSD file describing all the objects that I need. I can create the objects in Java using JAXB no problem. I have an XML/RDF file that I need to parse into those objects. What is the EASIEST way to do this? I have been looking into Jena and have played around with it, but can't see how to easily map the XML/RDF file to the XSD objects that were generated. Here is a snippet of the XSD file as well as the XML/RDF file: <?xml version="1.0" encoding="UTF-8"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:a="http://langdale.com.au/2005/Message#" xmlns:sawsdl="http://www.w3.org/ns/sawsdl" targetNamespace="http://iec.ch/TC57/2007/profile#" elementFormDefault="qualified" attributeFormDefault="unqualified" xmlns="http://langdale.com.au/2005/Message#" xmlns:m="http://iec.ch/TC57/2007/profile#"> <xs:annotation/> <xs:element name="Profile" type="m:Profile"/> <xs:complexType name="Profile"> <xs:sequence> <xs:element name="Breaker" type="m:Breaker" minOccurs="0" maxOccurs="unbounded"/> And the XML/RDF: <!-- CIM XML Output For switch783:(295854688) --> <cim:Switch rdf:ID="Switch_295854688"> <cim:IdentifiedObject.mRID>Switch_295854688</cim:IdentifiedObject.mRID> <cim:IdentifiedObject.aliasName>Switch_295854688</cim:IdentifiedObject.aliasName> <cim:ConductingEquipment.phases rdf:resource="http://iec.ch/TC57/2009/CIM-schema-cim14#PhaseCode.ABC" /> <cim:Switch.circuit2>0001406</cim:Switch.circuit2> <cim:Equipment.Line rdf:resource="#Line_0001406" />

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  • Alignment in assembly

    - by jena
    Hi, I'm spending some time on assembly programming (Gas, in particular) and recently I learned about the align directive. I think I've understood the very basics, but I would like to gain a deeper understanding of its nature and when to use alignment. For instance, I wondered about the assembly code of a simple C++ switch statement. I know that under certain circumstances switch statements are based on jump tables, as in the following few lines of code: .section .rodata .align 4 .align 4 .L8: .long .L2 .long .L3 .long .L4 .long .L5 ... .align 4 aligns the following data on the next 4-byte boundary which ensures that fetching these memory locations is efficient, right? I think this is done because there might be things happening before the switch statement which caused misalignment. But why are there actually two calls to .align? Are there any rules of thumb when to call .align or should it simply be done whenever a new block of data is stored in memory and something prior to this could have caused misalignment? In case of arrays, it seems that alignment is done on 32-byte boundaries as soon as the array occupies at least 32 byte. Is it more efficient to do it this way or is there another reason for the 32-byte boundary? I'd appreciate any explanation or hint on literature.

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  • protocol parsing in c

    - by nomad.alien
    I have been playing around with trying to implement some protocol decoders, but each time I run into a "simple" problem and I feel the way I am solving the problem is not optimal and there must be a better way to do things. I'm using C. Currently I'm using some canned data and reading it in as a file, but later on it would be via TCP or UDP. Here's the problem. I'm currently playing with a binary protocol at work. All fields are 8 bits long. The first field(8bits) is the packet type. So I read in the first 8 bits and using a switch/case I call a function to read in the rest of the packet as I then know the size/structure of it. BUT...some of these packets have nested packets inside them, so when I encounter that specific packet I then have to read another 8-16 bytes have another switch/case to see what the next packet type is and on and on. (Luckily the packets are only nested 2 or 3 deep). Only once I have the whole packet decoded can I handle it over to my state machine for processing. I guess this can be a more general question as well. How much data do you have to read at a time from the socket? As much as possible? As much as what is "similar" in the protocol headers? So even though this protocol is fairly basic, my code is a whole bunch of switch/case statements and I do a lot of reading from the file/socket which I feel is not optimal. My main aim is to make this decoder as fast as possible. To the more experienced people out there, is this the way to go or is there a better way which I just haven't figured out yet? Any elegant solution to this problem?

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  • GUI blocked while running silent app VC++

    - by deb
    Hi, I have built a GUI interface in C++ (Windows XP, visual c++ 2008). There you can configure some parameters and when I click on the OK button, a silent application is launched (and uses the values setted). When I do this, the GUI frozes and even dissappears if you switch to other windows(it's still there, but you can only see a white space), when the other application's finished the GUI works again. This is the correct behaviour, I don't want the user to be able to edit the fields... but it's a bit ugly when you can't see the GUI. Does anybody know an easy way of being able to switch to other windows and being able to see the the GUI when you switch back? Thanks in advance Edited: Hi, I tried doing this, but the problem is that to run the apps in background I had a function that uses CreateProcess. So both ways the GUI gets frozen: if I create a Thread that creates the process and if I creathe the process directly. Then I wait for the process to finish: if (!CreateProcess( NULL, Args, NULL, NULL, FALSE, CREATE_NEW_CONSOLE, NULL, NULL, &StartupInfo, &ProcessInfo)) { return GetLastError(); } WaitForSingleObject(ProcessInfo.hProcess, INFINITE); if(!GetExitCodeProcess(ProcessInfo.hProcess, &rc)) rc = 0; Any idea?

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  • gcc -finline-functions behaviour?

    - by user176168
    I'm using gcc with the -finline-functions optimization for release builds. In order to combat code bloat because I work on an embedded system I want to say don't inline particular functions. The obvious way to do this would be through function attributes ie attribute(noinline). The problem is this doesn't seem to work when I switch on the global -finline-functions optimisation which is part of the -O3 switch. It also has something to do with it being templated as a non templated version of the same function doesn't get inlined which is as expected. Has anybody any idea of how to control inlining when this global switch is on? Here's the code: #include <cstdlib> #include <iostream> using namespace std; class Base { public: template<typename _Type_> static _Type_ fooT( _Type_ x, _Type_ y ) __attribute__ (( noinline )); }; template<typename _Type_> _Type_ Base::fooT( _Type_ x, _Type_ y ) { asm(""); return x + y; } int main(int argc, char *argv[]) { int test = Base::fooT( 1, 2 ); printf( "test = %d\n", test ); system("PAUSE"); return EXIT_SUCCESS; }

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  • anti-if campaign

    - by Andrew Siemer
    I recently ran against a very interesting site that expresses a very interesting idea - the anti-if campaign. You can see this here at www.antiifcampaign.com. I have to agree that complex nested IF statements are an absolute pain in the rear. I am currently on a project that up until very recently had some crazy nested IFs that scrolled to the right for quite a ways. We cured our issues in two ways - we used Windows Workflow Foundation to address routing (or workflow) concerns. And we are in the process of implementing all of our business rules utilizing ILOG Rules for .NET (recently purchased by IBM!!). This for the most part has cured our nested IF pains...but I find myself wondering how many people cure their pains in the manner that the good folks at the AntiIfCampaign suggest (see an example here) by creating numerous amounts of abstract classes to represent a given scenario that was originally covered by the nested IF. I wonder if another way to address the removal of this complexity might also be in using an IoC container such as StructureMap to move in and out of different bits of functionality. Either way... Question: Given a scenario where I have a nested complex IF or SWITCH statement that is used to evaluate a given type of thing (say evaluating an Enum) to determine how I want to handle the processing of that thing by enum type - what are some ways to do the same form of processing without using the IF or SWITCH hierarchical structure? public enum WidgetTypes { Type1, Type2, Type3, Type4 } ... WidgetTypes _myType = WidgetTypes.Type1; ... switch(_myType) { case WidgetTypes.Type1: //do something break; case WidgetTypes.Type2: //do something break; //etc... }

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  • PHP Function parameters - problem with var not being set

    - by Marty
    So I am obviously not a very good programmer. I have written this small function: function dispAdjuggler($atts) { extract(shortcode_atts(array( 'slot' => '' ), $atts)); $adspot = ''; $adtype = ''; // Get blog # we're on global $blog_id; switch ($blog_id) { case 1: // root blog HOME page if (is_home()) { switch ($slot) { case 'top_leaderboard': $adspot = '855525'; $adtype = '608934'; break; case 'right_halfpage': $adspot = '855216'; $adtype = '855220'; break; case 'right_med-rectangle': $adspot = '858222'; $adtype = '613526'; break; default: throw new Exception("Ad slot is not defined"); break; } When I reference the function on a page like so: <?php dispAdjuggler("top_leaderboard"); ?> The switch is throwing the default exception. What am I doing wrong here? Thanks!!

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  • How long is the time frame between context switches on Windows?

    - by mattcodes
    Reading CLR via C# 2.0 (I dont have 3.0 with me at the moment) Is this still the case: If there is only one CPU in a computer, only one thread can run at any one time. Windows has to keep track of the thread objects, and every so often, Windows has to decide which thread to schedule next to go to the CPU. This is additional code that has to execute once every 20 milliseconds or so. When Windows makes a CPU stop executing one thread's code and start executing another thread's code, we call this a context switch. A context switch is fairly expensive because the operating system has to: So circa CLR via C# 2.0 lets say we are on Pentium 4 2.4ghz 1 core non-HT, XP. Every 20 milliseconds? Where a CLR thread or Java thread is mapped to an OS thread only a maximum of 50 threads per second may get a chance to to run? I've read that context switching is very fast in mircoseconds here on SO, but how often roughly (magnitude style guesses) will say a modest 5 year old server Windows 2003 Pentium Xeon single core give the OS the opportunity to context switch? 20ms in the right area? I dont need exact figures I just want to be sure that's in the right area, seems rather long to me.

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  • Could this be considered a well-written PHP5 class?

    - by Ben Dauphinee
    I have been learning OOP principals on my own for a while, and taken a few cracks at writing classes. What I really need to know now is if I am actually using what I have learned correctly, or if I could improve as far as OOP is concerned. I have chopped a massive portion of code out of a class that I have been working on for a while now, and pasted it here. To all you skilled and knowledgeable programmers here I ask: Am I doing it wrong? class acl extends genericAPI{ // -- Copied from genericAPI class protected final function sanityCheck($what, $check, $vars){ switch($check){ case 'set': if(isset($vars[$what])){return(1);}else{return(0);} break; } } // --------------------------------- protected $db = null; protected $dataQuery = null; public function __construct(Zend_Db_Adapter_Abstract $db, $config = array()){ $this->db = $db; if(!empty($config)){$this->config = $config;} } protected function _buildQuery($selectType = null, $vars = array()){ // Removed switches for simplicity sake $this->dataQuery = $this->db->select( )->from( $this->config['table_users'], array('tf' => '(CASE WHEN count(*) > 0 THEN 1 ELSE 0 END)') )->where( $this->config['uidcol'] . ' = ?', $vars['uid'] ); } protected function _sanityRun_acl($sanitycheck, &$vars){ switch($sanitycheck){ case 'uid_set': if(!$this->sanityCheck('uid', 'set', $vars)){ throw new Exception(ERR_ACL_NOUID); } $vars['uid'] = settype($vars['uid'], 'integer'); break; } } private function user($action = null, $vars = array()){ switch($action){ case 'exists': $this->_sanityRun_acl('uid_set', $vars); $this->_buildQuery('user_exists_idcheck', $vars); return($this->db->fetchOne($this->dataQuery->__toString())); break; } } public function user_exists($uid){ return($this->user('exists', array('uid' => $uid))); } } $return = $acl_test->user_exists(1);

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  • Problems with Window Functions Wndproc and about

    - by BrianHuangverinem
    I really having problems with this problem ,it would be nice if someone help me on this. Every time I try to build my source file the same errors occur every time for the two window functions CALLBACK Wndproc and CALLBACK About. error: "local function definitions are illegal" Can you tell me what mistake I made? LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { int wmId, wmEvent; PAINTSTRUCT ps; HDC hdc; wmId = LOWORD(wParam); wmEvent = HIWORD(wParam); switch (message) { case WM_COMMAND: // Parse the menu selections: switch (wmId) { case IDM_ABOUT: DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About); break; case IDM_EXIT: DestroyWindow(hWnd); break; default: return DefWindowProc(hWnd, message, wParam, lParam); } break; case WM_PAINT: hdc = BeginPaint(hWnd, &ps); CaptureImage(hWnd); EndPaint(hWnd, &ps); break; case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hWnd, message, wParam, lParam); } return 0; } // Message handler for about box. INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam) { UNREFERENCED_PARAMETER(lParam); switch (message) { case WM_INITDIALOG: return (INT_PTR)TRUE; case WM_COMMAND: if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) { EndDialog(hDlg, LOWORD(wParam)); return (INT_PTR)TRUE; } break; } return (INT_PTR)FALSE; }

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  • Memory Management with returning char* function

    - by RageD
    Hello all, Today, without much thought, I wrote a simple function return to a char* based on a switch statement of given enum values. This, however, made me wonder how I could release that memory. What I did was something like this: char* func() { char* retval = new char; // Switch blah blah - will always return some value other than NULL since default: return retval; } I apologize if this is a naive question, but what is the best way to release the memory seeing as I cannot delete the memory after the return and, obviously, if I delete it before, I won't have a returned value. What I was thinking as a viable solution was something like this void func(char*& in) { // blah blah switch make it do something } int main() { char* val = new char; func(val); // Do whatever with func (normally func within a data structure with specific enum set so could run multiple times to change output) val = NULL; delete val; val = NULL; return 0; } Would anyone have anymore insight on this and/or explanation on which to use? Regards, Dennis M.

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  • JQuery to PHP function and back Ajaxed

    - by Xaris
    Hi all, i have a set of php function that i want to call on different events mostly onclick with jquery async (ajax). The first function is called on load $(document).ready(function() { $("#div2").hide('slow'); $("#div1").empty().html('<img src="ajax-loader.gif" />'); $.ajax( { type: "POST", url: "WebFunctions.php", data: {'func':'1'}, success: function(html) { $("#div1").show('slow').html(html) } }); The Data: {'func':'1'} -- is a switch statement on the php side switch($_POST['func']) { case '1': getParents(); break; case '2': getChilds(params); break; case '3': getChildObjects(params); break; default: } "This functions are calls to a soap server" <-- irrelevant. So when that function finishes i get an array which contains IDs and Names. I echo the names but i want the ID for reference so when i click on the echoed name i can call an other php function with parameter the ID of the name... How do i get rid of the switch statement?? How do i call properly php functions and pass params to it??? How can i save this IDs so when i click on an item with that id an other php function is called?? Plz feel free to ask any question, any answer is welcome :)

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  • Could this be considered a well-written class (am I using OOP correctly)?

    - by Ben Dauphinee
    I have been learning OOP principals on my own for a while, and taken a few cracks at writing classes. What I really need to know now is if I am actually using what I have learned correctly, or if I could improve as far as OOP is concerned. I have chopped a massive portion of code out of a class that I have been working on for a while now, and pasted it here. To all you skilled and knowledgeable programmers here I ask: Am I doing it wrong? class acl extends genericAPI{ // -- Copied from genericAPI class protected final function sanityCheck($what, $check, $vars){ switch($check){ case 'set': if(isset($vars[$what])){return(1);}else{return(0);} break; } } // --------------------------------- protected $db = null; protected $dataQuery = null; public function __construct(Zend_Db_Adapter_Abstract $db, $config = array()){ $this->db = $db; if(!empty($config)){$this->config = $config;} } protected function _buildQuery($selectType = null, $vars = array()){ // Removed switches for simplicity sake $this->dataQuery = $this->db->select( )->from( $this->config['table_users'], array('tf' => '(CASE WHEN count(*) > 0 THEN 1 ELSE 0 END)') )->where( $this->config['uidcol'] . ' = ?', $vars['uid'] ); } protected function _sanityRun_acl($sanitycheck, &$vars){ switch($sanitycheck){ case 'uid_set': if(!$this->sanityCheck('uid', 'set', $vars)){ throw new Exception(ERR_ACL_NOUID); } $vars['uid'] = settype($vars['uid'], 'integer'); break; } } private function user($action = null, $vars = array()){ switch($action){ case 'exists': $this->_sanityRun_acl('uid_set', $vars); $this->_buildQuery('user_exists_idcheck', $vars); return($this->db->fetchOne($this->dataQuery->__toString())); break; } } public function user_exists($uid){ return($this->user('exists', array('uid' => $uid))); } } $return = $acl_test->user_exists(1);

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  • C++: Case statement within while loop?

    - by Jason
    I just started C++ but have some prior knowledge to other languages (vb awhile back unfortunately), but have an odd predicament. I disliked using so many IF statements and wanted to use switch/cases as it seemed cleaner, and I wanted to get in the practice.. But.. Lets say I have the following scenario (theorietical code): while(1) { //Loop can be conditional or 1, I use it alot, for example in my game char something; std::cout << "Enter something\n -->"; std::cin >> something; //Switch to read "something" switch(something) { case 'a': cout << "You entered A, which is correct"; break; case 'b': cout << "..."; break; } } And that's my problem. Lets say I wanted to exit the WHILE loop, It'd require two break statements? This obviously looks wrong: case 'a': cout << "You entered A, which is correct"; break; break; So can I only do an IF statement on the 'a' to use break;? Am I missing something really simple? This would solve a lot of my problems that I have right now.

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  • Conditional compilation hackery in C# - is there a way to pull this off?

    - by Chris
    I have an internal API that I would like others to reference in their projects as a compiled DLL. When it's a standalone project that's referenced, I use conditional compilation (#if statements) to switch behavior of a key web service class depending on compilation symbols. The problem is, once an assembly is generated, it appears that it's locked into whatever the compilation symbols were when it was originally compiled - for instance, if this assembly is compiled with DEBUG and is referenced by another project, even if the other project is built as RELEASE, the assembly still acts as if it was in DEBUG as it doesn't need recompilation. That makes sense, just giving some background. Now I'm trying to work around that so I can switch the assembly's behavior by some other means, such as scanning the app/web config file for a switch. The problem is, some of the assembly's code I was switching between are attributes on methods, for example: #if PRODUCTION [SoapDocumentMethodAttribute("https://prodServer/Service_Test", RequestNamespace = "https://prodServer", ResponseNamespace = "https://prodServer")] #else [SoapDocumentMethodAttribute("https://devServer/Service_Test", RequestNamespace = "https://devServer", ResponseNamespace = "https://devServer")] #endif public string Service_Test() { // test service } Though there might be some syntactical sugar that allows me to flip between two attributes of the same type in another fashion, I don't know it. Any ideas? The alternative method would be to reference the entire project instead of the assembly, but I'd rather stick with just referencing the compiled DLL if I can. I'm also completely open to a whole new approach to solve the problem if that's what it takes.

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  • Response Redirect - Open Link in New Window

    - by bacis09
    First, I've taken the time to review this question which seems to be the most similar, however, the solution that seems to have been selected will not work in my scenario.Not to mention I worry about some of the comments claiming it to be brittle or an inadequate solution. http://stackoverflow.com/questions/104601/asp-net-response-redirect-to-new-window -We have an XML document which basically contains all of the information for a Side menu. -We have numerous URLS which are stored in a constants class. -One of the elements in a string of XML (well call it label) is used to determine if the menu item is created as a LinkButton or a Label. -Links use a custom user control that is used standard for all links across the application (why suggestion on similar thread doesn't work - I don't want all links to open in a new window - just one) -One of the elements in a string of XML (well call it function) is used in a Switch statement to generate our links using Response Redirect. It may look something like this. switch (function) { case goto 1: string url; if (user_group == 1) { url = Constants.CONSTANT1 } else { url = Constants.CONSTANT2 } Response.Redirect(url) case goto 2: ...... default: ...... break; } Given this scenario, I'm trying to find the best way to quickly open a New Window, when a specific case in this switch statement is met. Can it be done with Response Redirect (this seems to be arguable - people say no it can't, yet other people say they have made it work)? If not, what alternative can work here?

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  • Java Socket - how to catch Exception of BufferedReader.readline()

    - by Hasan Tahsin
    I have a Thread (let's say T1) which reads data from socket: public void run() { while (running) { try { BufferedReader reader = new BufferedReader( new InputStreamReader(socket.getInputStream()) ); String input = reader.readLine(); } catch (IOException e) { e.printStackTrace(); } } } Another Thread (lets say T2) try to finish the program in one of its method. Therefore T2 does the following: T1.running = false; socket.close(); Here is this scenario for which i couldn't find a solution: T1 is active and waiting for some input to read i.e. blocking. context switching T2 is active and sets running to false, closes the socket context switching because T1 was blocking and T2 closed the socket, T1 throws an Exception. What i want is to catch this SocketException. i can't put a try/catch(SocketException) in T1.run(). So how can i catch it in T1's running-method? If it's not possible to catch it in T1's running, then how can i catch it elsewhere? PS: "Another question about the Thread Debugging" Normally when i debug the code step by step, i lose the 'active running line' on a context switch. Let's say i'm in line 20 of T1, context switch happens, let's assume the program continues from the 30.line of T2, but the debugger does not go/show to the 30.line of T2, instead the 'active running line' vanishes. So i lose the control over the code. I use Eclipse for Java and Visual Studio for C#. So what is the best way to track the code while debugging on a context switch ?

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  • strange doctrine update problem

    - by larryzhao
    Hi, guys, I have a simple table like following: class SnookerCurrentInfo extends Doctrine_Record { public function setTableDefinition() { $this->hasColumn('current_frame_id', 'integer', 4, array('notnull' => 'false')); $this->hasColumn('current_player_id', 'integer', 4, array('notnull' => 'false')); $this->hasColumn('current_score1', 'integer', 4, array('notnull' => 'false')); $this->hasColumn('current_score2', 'integer', 4, array('notnull' => 'false')); } public function setUp(){ $this->setTableName('snooker_current_info'); } } and I would like to keep only one entry in this table. So every time the value is changed I read the entry with id = 1 out and change the object and execute save. like the following: $info = Doctrine::getTable('SnookerCurrentInfo')->find(1); $info->current_frame_id = $jsonInfo['current_frame_id']; $info->current_player_id = $jsonInfo['current_player_id']; $info->current_score1 = $jsonInfo['current_score1']; $info->current_score2 = $jsonInfo['current_score2']; $info->save(); but the strange thing is, I try to make it clear. Let's say at first, the entry is (30, 1, 1, 0) and I switch player, so update the entry to (30, 2, 1, 0). and I switch the player back again, so the entry should be updated to (30, 1, 1, 0), but this is not affected to the database!! In the database, the entry still remains as (30, 2, 1, 0)!!!! But if after (30, 2, 1, 0), I update the score to (30, 2, 1, 1) and then switch the player back (30, 1, 1, 1) then this is ok. What's that? How should I deal with it? Thanks for a lot helping, really urgent!!

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  • Application pool crashing regularly (8007006d) (Service Unavailable)

    - by Phil
    I have a basic web form site running. Nothing out of the ordinary. It is frequently crashing the application pool. The error code I got from the logs is '8007006d'. Googling this does not come up with the usual bevy of results.... I do get a few people with a similar problem. Any the advise seems to be that the error is related to registry permissions. Can anyone confirm / disconfirm this theory. That if I get error 8007006d it is definately a reg permissions problem? Here is the code from my page. I'm not seeing anything that would cause a memory leak or make this happen. It is basically just one big insert command with many parameters? Imports System.Web.Configuration Imports System.Data.SqlClient Imports System.Net.Mail Imports System.IO Imports System.Globalization Partial Class _Default Inherits System.Web.UI.Page Public Sub WriteError(ByVal errorMessage As String) Try Dim path As String = "~/Error/" & DateTime.Today.ToString("dd-mm-yy") & ".txt" If (Not File.Exists(System.Web.HttpContext.Current.Server.MapPath(path))) Then File.Create(System.Web.HttpContext.Current.Server.MapPath(path)).Close() End If Using w As StreamWriter = File.AppendText(System.Web.HttpContext.Current.Server.MapPath(path)) w.WriteLine(Constants.vbCrLf & "Log Entry : ") w.WriteLine("{0}", DateTime.Now.ToString(CultureInfo.InvariantCulture)) Dim err As String = "Error in: " & System.Web.HttpContext.Current.Request.Url.ToString() & ". Error Message:" & errorMessage w.WriteLine(err) w.WriteLine("__________________________") w.Flush() w.Close() End Using Catch ex As Exception WriteError(ex.Message) End Try End Sub Protected Sub Page_PreLoad(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreLoad otherlanguagespecify.Text = "Language: Speaking: Reading: Writing:" 'Show / hide 'other' panels ProvincePanel.Visible = False If Province.SelectedValue = "Other" Then ProvincePanel.Visible = True End If languagespanel.Visible = False If OtherLanguage.Checked Then languagespanel.Visible = True End If End Sub Protected Sub Submit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Submit.Click Dim areasexpertise As String = String.Empty Dim areasli As ListItem Dim english As String = String.Empty Dim connstring As String = WebConfigurationManager.ConnectionStrings("Str").ToString() Dim c As SqlConnection = New SqlConnection(connstring) Dim s As String = ("INSERT INTO [MBA_EOI]") & _ ("([subdate],[surname], [name], [dob], [nationality], [postaladdress],") & _ ("[province],[city], [postcode], [worktelephone],") & _ ("[hometelephone], [mobile], [email],[fax], [institution1],") & _ ("[institution2], [institution3], [institution4], [institutiondate1], [institutiondate2],") & _ ("[institutiondate3], [institutiondate4],[institutionquals1], [institutionquals2], [institutionquals3],") & _ ("[institutionquals4],[profdates1], [profdates2],") & _ ("[profdates3], [profdates4], [profdates5], [profdates6], [profdates7], ") & _ ("[profloc1], [profloc2], [profloc3], [profloc4], [profloc5],") & _ ("[profloc6], [profloc7], [profcomp1], [profcomp2], [profcomp3],") & _ ("[profcomp4], [profcomp5], [profcomp6], [profcomp7], [profpos1],") & _ ("[profpos2], [profpos3], [profpos4], [profpos5], [profpos6],") & _ ("[profpos7], [profdesc1], [profdesc2], [profdesc3], [profdesc4],") & _ ("[profdesc5],[profdesc6],[profdesc7], [company1], [company2],") & _ ("[company3], [company4], [company5], [nature1], [nature2],") & _ ("[nature3], [nature4], [nature5], [workdate1], [workdate2],") & _ ("[workdate3], [workdate4], [workdate5], [contactname1], [contactname2],") & _ ("[contactname3], [contactname4], [contactname5], [wtelephone1], [wtelephone2],") & _ ("[wtelephone3],[wtelephone4], [wtelephone5], [philosophy], [publications],") & _ ("[english], [otherlanguage], [areasofexpertise], [otherareasofexpertise],") & _ ("[assessortrue], [coordinatortrue], [facilitatortrue], [moderatortrue], [productdevelopertrue],") & _ ("[projectmanagertrue], [assessorexp], [coordinatorexp], [facilitatorexp], [moderatorexp],") & _ ("[productdeveloperexp], [projectmanagerexp], [assessorlvl], [coordinatorlvl], [facilitatorlvl],") & _ ("[moderatorlvl], [productdeveloperlvl], [projectmanagerlvl], [assessorpref], [coordinatorpref],") & _ ("[FacilitatorPref], [ModeratorPref], [ProductDeveloperPref], [ProjectManagerPref], [designation], [professortrue],") & _ ("[professorlvl], [professorexp], [professorpref], [lecturertrue], [lecturerpref], [lecturerlvl], [lecturerexp], [affiliations], [educationmore], ") & _ ("[wemail1], [wemail2], [wemail3], [wemail4], [wemail5])") & _ ("VALUES") & _ ("(@subdate, @surname, @name, @dob, @nationality, @postaladdress,") & _ ("@province,@city, @postcode, @worktelephone,") & _ ("@hometelephone, @mobile, @email, @fax, @inst1,") & _ ("@inst2, @inst3, @inst4, @instdate1, @instdate2,") & _ ("@instdate3, @instdate4, @instquals1, @instquals2, @instquals3,") & _ ("@instquals4, @profdates1, @profdates2,") & _ ("@profdates3, @profdates4, @profdates5, @profdates6, @profdates7,") & _ ("@profloc1, @profloc2, @profloc3, @profloc4, @profloc5,") & _ ("@profloc6, @profloc7, @profcomp1, @profcomp2, @profcomp3,") & _ ("@profcomp4, @profcomp5, @profcomp6, @profcomp7, @profpos1,") & _ ("@profpos1, @profpos1, @profpos4, @profpos5, @profpos6,") & _ ("@profpos7, @profdesc1, @profdesc2, @profdesc3, @profdesc4,") & _ ("@profdesc5, @profdesc6, @profdesc7, @company1, @company2,") & _ ("@company3, @company4, @company5,@nature1, @nature2,") & _ ("@nature3, @nature4, @nature5, @workdate1, @workdate2,") & _ ("@workdate3, @workdate4, @workdate5, @contactname1, @contactname2,") & _ ("@contactname3, @contactname4, @contactname5, @wtelephone1, @wtelephone2,") & _ ("@wtelephone3,@wtelephone4, @wtelephone5, @philosophy, @publications,") & _ ("@english, @otherlanguage, @areasofexpertise, @otherareasofexpertise,") & _ ("@assessor, @coordinator, @facilitator, @moderator, @productdeveloper,") & _ ("@projectmanager, @assessorexp, @coordinatorexp, @facilitatorexp, @moderatorexp,") & _ ("@productdeveloperexp, @projectmanagerexp, @assessorlvl, @coordinatorlvl, @facilitatorlvl,") & _ ("@moderatorlvl, @productdeveloperlvl, @projectmanagerlvl, @assessorpref, @coordinatorpref,") & _ ("@facilitatorpref, @moderatorpref, @productdeveloperpref, @projectmanagerpref, @designation, @professor, @professorlvl, @professorexp, @professorpref,") & _ ("@lecturer, @lecturerpref, @lecturerlvl, @lecturerexp, @affiliations, @educationmore, ") & _ ("@wemail1, @wemail2, @wemail3, @wemail4, @wemail5)") 'Setup birthday Dim birthdaystring As String = MonthBirth.SelectedValue.ToString & "/" & DayBirth.SelectedValue.ToString & "/" & YearBirth.SelectedValue.ToString Dim birthday As DateTime = Convert.ToDateTime(birthdaystring) Try Dim x As New SqlCommand(s, c) x.Parameters.AddWithValue("@subdate", DateTime.Now()) x.Parameters.AddWithValue("@surname", Surname.Text) x.Parameters.AddWithValue("@name", Name.Text) x.Parameters.AddWithValue("@dob", birthday) x.Parameters.AddWithValue("@nationality", Nationality.Text) x.Parameters.AddWithValue("@postaladdress", Postaladdress.Text) x.Parameters.AddWithValue("@designation", Designation.SelectedItem.ToString) 'to control whether or not 'other' province is selected If Province.SelectedValue = "Other" Then x.Parameters.AddWithValue("@province", Otherprovince.Text) Else x.Parameters.AddWithValue("@province", Province.SelectedValue.ToString) End If x.Parameters.AddWithValue("@city", City.Text) x.Parameters.AddWithValue("@postcode", Postcode.Text) x.Parameters.AddWithValue("@worktelephone", Worktelephone.Text) x.Parameters.AddWithValue("@hometelephone", Hometelephone.Text) x.Parameters.AddWithValue("@mobile", Mobile.Text) x.Parameters.AddWithValue("@email", Email.Text) x.Parameters.AddWithValue("@fax", Fax.Text) 'Add education params to x command x.Parameters.AddWithValue("@inst1", Institution1.Text) x.Parameters.AddWithValue("@inst2", Institution2.Text) x.Parameters.AddWithValue("@inst3", Institution3.Text) x.Parameters.AddWithValue("@inst4", Institution4.Text) x.Parameters.AddWithValue("@instdate1", Institutiondates1.Text) x.Parameters.AddWithValue("@instdate2", Institutiondates2.Text) x.Parameters.AddWithValue("@instdate3", Institutiondates3.Text) x.Parameters.AddWithValue("@instdate4", Institutiondates4.Text) x.Parameters.AddWithValue("@instquals1", Institution1quals.Text) x.Parameters.AddWithValue("@instquals2", Institution2quals.Text) x.Parameters.AddWithValue("@instquals3", Institution3quals.Text) x.Parameters.AddWithValue("@instquals4", Institution4quals.Text) 'Add checkbox params to x command Dim eli As ListItem For Each eli In EnglishSkills.Items If eli.Selected Then english += eli.Text + " | " End If Next x.Parameters.AddWithValue("@english", english) For Each areasli In Expertiselist.Items If areasli.Selected Then areasexpertise += " ; " & areasli.Text End If Next x.Parameters.AddWithValue("@areasofexpertise", areasexpertise) If OtherLanguage.Checked.ToString Then x.Parameters.AddWithValue("@otherlanguage", otherlanguagespecify.Text) Else x.Parameters.AddWithValue("@otherlanguage", DBNull.Value) End If 'Add competencies params to x command x.Parameters.AddWithValue("@assessor", AssessorTrue.Checked) x.Parameters.AddWithValue("@coordinator", CoordinatorTrue.Checked) x.Parameters.AddWithValue("@facilitator", FacilitatorTrue.Checked) x.Parameters.AddWithValue("@moderator", ModeratorTrue.Checked) x.Parameters.AddWithValue("@productdeveloper", ProductDeveloperTrue.Checked) x.Parameters.AddWithValue("@projectmanager", ProjectManagerTrue.Checked) x.Parameters.AddWithValue("@assessorexp", Assessorexp.Text) x.Parameters.AddWithValue("@coordinatorexp", coordinatorexp.Text) x.Parameters.AddWithValue("@facilitatorexp", facilitatorexp.Text) x.Parameters.AddWithValue("@moderatorexp", moderatorexp.Text) x.Parameters.AddWithValue("@productdeveloperexp", productdeveloperexp.Text) x.Parameters.AddWithValue("@projectmanagerexp", projectmanagerexp.Text) x.Parameters.AddWithValue("@assessorlvl", Assessorlevel.Text) x.Parameters.AddWithValue("@coordinatorlvl", Coordinatorlevel.Text) x.Parameters.AddWithValue("@facilitatorlvl", Facilitatorlevel.Text) x.Parameters.AddWithValue("@moderatorlvl", Moderatorlevel.Text) x.Parameters.AddWithValue("@productdeveloperlvl", Productdeveloperlevel.Text) x.Parameters.AddWithValue("@projectmanagerlvl", Projectmanagerlevel.Text) x.Parameters.AddWithValue("@assessorpref", AssessorPref.Text) x.Parameters.AddWithValue("@coordinatorpref", CoordinatorPref.Checked) x.Parameters.AddWithValue("@facilitatorpref", FacilitatorPref.Checked) x.Parameters.AddWithValue("@moderatorpref", ModeratorPref.Checked) x.Parameters.AddWithValue("@productdeveloperpref", ProductDeveloperPref.Checked) x.Parameters.AddWithValue("@projectmanagerpref", ProjectManagerPref.Checked) x.Parameters.AddWithValue("@professorpref", ProfessorPref.Checked) x.Parameters.AddWithValue("@professorlvl", Professorlevel.Text) x.Parameters.AddWithValue("@professor", ProfessorTrue.Checked) x.Parameters.AddWithValue("@professorexp", professorexp.Text) x.Parameters.AddWithValue("@lecturerpref", LecturerPref.Checked) x.Parameters.AddWithValue("@lecturerlvl", Lecturerlevel.Text) x.Parameters.AddWithValue("@lecturer", LecturerTrue.Checked) x.Parameters.AddWithValue("@lecturerexp", lecturerexp.Text) 'Add professional experience params to x command x.Parameters.AddWithValue("@profdates1", ProfDates1.Text) x.Parameters.AddWithValue("@profdates2", ProfDates2.Text) x.Parameters.AddWithValue("@profdates3", ProfDates3.Text) x.Parameters.AddWithValue("@profdates4", ProfDates4.Text) x.Parameters.AddWithValue("@profdates5", ProfDates5.Text) x.Parameters.AddWithValue("@profdates6", ProfDates6.Text) x.Parameters.AddWithValue("@profdates7", ProfDates7.Text) x.Parameters.AddWithValue("@profloc1", ProfDates1.Text) x.Parameters.AddWithValue("@profloc2", ProfDates2.Text) x.Parameters.AddWithValue("@profloc3", ProfDates3.Text) x.Parameters.AddWithValue("@profloc4", ProfDates4.Text) x.Parameters.AddWithValue("@profloc5", ProfDates5.Text) x.Parameters.AddWithValue("@profloc6", ProfDates6.Text) x.Parameters.AddWithValue("@profloc7", ProfDates7.Text) x.Parameters.AddWithValue("@profcomp1", ProfCompany1.Text) x.Parameters.AddWithValue("@profcomp2", ProfCompany2.Text) x.Parameters.AddWithValue("@profcomp3", ProfCompany3.Text) x.Parameters.AddWithValue("@profcomp4", ProfCompany4.Text) x.Parameters.AddWithValue("@profcomp5", ProfCompany5.Text) x.Parameters.AddWithValue("@profcomp6", ProfCompany6.Text) x.Parameters.AddWithValue("@profcomp7", ProfCompany7.Text) x.Parameters.AddWithValue("@profpos1", Profpos1.Text) x.Parameters.AddWithValue("@profpos2", Profpos2.Text) x.Parameters.AddWithValue("@profpos3", Profpos3.Text) x.Parameters.AddWithValue("@profpos4", Profpos4.Text) x.Parameters.AddWithValue("@profpos5", Profpos5.Text) x.Parameters.AddWithValue("@profpos6", Profpos6.Text) x.Parameters.AddWithValue("@profpos7", Profpos7.Text) x.Parameters.AddWithValue("@profdesc1", ProfDesc1.Text) x.Parameters.AddWithValue("@profdesc2", ProfDesc2.Text) x.Parameters.AddWithValue("@profdesc3", ProfDesc2.Text) x.Parameters.AddWithValue("@profdesc4", ProfDesc4.Text) x.Parameters.AddWithValue("@profdesc5", ProfDesc5.Text) x.Parameters.AddWithValue("@profdesc6", ProfDesc6.Text) x.Parameters.AddWithValue("@profdesc7", ProfDesc7.Text) 'Add references parameters to x command x.Parameters.AddWithValue("@company1", company1.Text) x.Parameters.AddWithValue("@company2", company2.Text) x.Parameters.AddWithValue("@company3", company3.Text) x.Parameters.AddWithValue("@company4", company4.Text) x.Parameters.AddWithValue("@company5", company5.Text) x.Parameters.AddWithValue("@nature1", natureofwork1.Text) x.Parameters.AddWithValue("@nature2", natureofwork2.Text) x.Parameters.AddWithValue("@nature3", natureofwork3.Text) x.Parameters.AddWithValue("@nature4", natureofwork4.Text) x.Parameters.AddWithValue("@nature5", natureofwork5.Text) x.Parameters.AddWithValue("@workdate1", workdate1.Text) x.Parameters.AddWithValue("@workdate2", workdate2.Text) x.Parameters.AddWithValue("@workdate3", workdate3.Text) x.Parameters.AddWithValue("@workdate4", workdate4.Text) x.Parameters.AddWithValue("@workdate5", workdate5.Text) x.Parameters.AddWithValue("@contactname1", ContactName1.Text) x.Parameters.AddWithValue("@contactname2", ContactName2.Text) x.Parameters.AddWithValue("@contactname3", ContactName3.Text) x.Parameters.AddWithValue("@contactname4", ContactName4.Text) x.Parameters.AddWithValue("@contactname5", ContactName5.Text) x.Parameters.AddWithValue("@wtelephone1", Telephone1.Text) x.Parameters.AddWithValue("@wtelephone2", Telephone2.Text) x.Parameters.AddWithValue("@wtelephone3", Telephone3.Text) x.Parameters.AddWithValue("@wtelephone4", Telephone4.Text) x.Parameters.AddWithValue("@wtelephone5", Telephone5.Text) x.Parameters.AddWithValue("@wemail1", Email1.Text) x.Parameters.AddWithValue("@wemail2", Email2.Text) x.Parameters.AddWithValue("@wemail3", Email3.Text) x.Parameters.AddWithValue("@wemail4", Email4.Text) x.Parameters.AddWithValue("@wemail5", Email5.Text) 'Add other areas of expertise parameter x.Parameters.AddWithValue("@otherareasofexpertise", Otherareasofexpertise.Text) 'Add philosophy / pubs / affils comands to x command x.Parameters.AddWithValue("@philosophy", learningphilosophy.Text) x.Parameters.AddWithValue("@publications", publicationdetails.Text) x.Parameters.AddWithValue("@affiliations", affiliations.Text) x.Parameters.AddWithValue("@educationmore", educationmore.Text) c.Open() x.ExecuteNonQuery() c.Close() Catch ex As Exception WriteError(ex.ToString) End Try 'If everyone is happy, redirect to thank you page If (Page.IsValid) Then Response.Redirect("Thanks.aspx") End If End Sub End Class

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  • Help debugging c fifos code - stack smashing detected - open call not functioning - removing pipes

    - by nunos
    I have three bugs/questions regarding the source code pasted below: stack smashing deteced: In order to compile and not have that error I have addedd the gcc compile flag -fno-stack-protector. However, this should be just a temporary solution, since I would like to find where the cause for this is and correct it. However, I haven't been able to do so. Any clues? For some reason, the last open function call doesn't work and the programs just stops there, without an error, even though the fifo already exists. I want to delete the pipes from the filesystem after before terminating the processes. I have added close and unlink statements at the end, but the fifos are not removed. What am I doing wrong? Thanks very much in advance. P.S.: I am pasting here the whole source file for additional clarity. Just ignore the comments, since they are in my own native language. server.c: #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <errno.h> #define MAX_INPUT_LENGTH 100 #define FIFO_NAME_MAX_LEN 20 #define FIFO_DIR "/tmp/" #define FIFO_NAME_CMD_CLI_TO_SRV "lrc_cmd_cli_to_srv" typedef enum { false, true } bool; bool background = false; char* logfile = NULL; void read_from_fifo(int fd, char** var) { int n_bytes; read(fd, &n_bytes, sizeof(int)); *var = (char *) malloc (n_bytes); read(fd, *var, n_bytes); printf("read %d bytes '%s'\n", n_bytes, *var); } void write_to_fifo(int fd, char* data) { int n_bytes = (strlen(data)+1) * sizeof(char); write(fd, &n_bytes, sizeof(int)); //primeiro envia o numero de bytes que a proxima instrucao write ira enviar write(fd, data, n_bytes); printf("writing %d bytes '%s'\n", n_bytes, data); } int main(int argc, char* argv[]) { //CRIA FIFO CMD_CLI_TO_SRV, se ainda nao existir char* fifo_name_cmd_cli_to_srv; fifo_name_cmd_cli_to_srv = (char*) malloc ( (strlen(FIFO_NAME_CMD_CLI_TO_SRV) + strlen(FIFO_DIR) + 1) * sizeof(char) ); strcpy(fifo_name_cmd_cli_to_srv, FIFO_DIR); strcat(fifo_name_cmd_cli_to_srv, FIFO_NAME_CMD_CLI_TO_SRV); int n = mkfifo(fifo_name_cmd_cli_to_srv, 0660); //TODO ver permissoes if (n < 0 && errno != EEXIST) //se houver erro, e nao for por causa de ja haver um com o mesmo nome, termina o programa { fprintf(stderr, "erro ao criar o fifo\n"); fprintf(stderr, "errno: %d\n", errno); exit(4); } //se por acaso já existir, nao cria o fifo e continua o programa normalmente //le informacao enviada pelo cliente, nesta ordem: //1. pid (em formato char*) do processo cliente //2. comando /CONNECT //3. nome de fifo INFO_SRV_TO_CLIXXX //4. nome de fifo MSG_SRV_TO_CLIXXX char* command; char* fifo_name_info_srv_to_cli; char* fifo_name_msg_srv_to_cli; char* client_pid_string; int client_pid; int fd_cmd_cli_to_srv, fd_info_srv_to_cli; fd_cmd_cli_to_srv = open(fifo_name_cmd_cli_to_srv, O_RDONLY); read_from_fifo(fd_cmd_cli_to_srv, &client_pid_string); client_pid = atoi(client_pid_string); read_from_fifo(fd_cmd_cli_to_srv, &command); //recebe commando /CONNECT read_from_fifo(fd_cmd_cli_to_srv, &fifo_name_info_srv_to_cli); //recebe nome de fifo INFO_SRV_TO_CLIXXX read_from_fifo(fd_cmd_cli_to_srv, &fifo_name_msg_srv_to_cli); //recebe nome de fifo MSG_TO_SRV_TO_CLIXXX //CIRA FIFO MSG_CLIXXX_TO_SRV char fifo_name_msg_cli_to_srv[FIFO_NAME_MAX_LEN]; strcpy(fifo_name_msg_cli_to_srv, FIFO_DIR); strcat(fifo_name_msg_cli_to_srv, "lrc_msg_cli"); strcat(fifo_name_msg_cli_to_srv, client_pid_string); strcat(fifo_name_msg_cli_to_srv, "_to_srv"); n = mkfifo(fifo_name_msg_cli_to_srv, 0660); if (n < 0) { fprintf(stderr, "error creating %s\n", fifo_name_msg_cli_to_srv); fprintf(stderr, "errno: %d\n", errno); exit(5); } //envia ao cliente a resposta ao commando /CONNECT fd_info_srv_to_cli = open(fifo_name_info_srv_to_cli, O_WRONLY); write_to_fifo(fd_info_srv_to_cli, fifo_name_msg_cli_to_srv); free(logfile); free(fifo_name_cmd_cli_to_srv); close(fd_cmd_cli_to_srv); unlink(fifo_name_cmd_cli_to_srv); unlink(fifo_name_msg_cli_to_srv); unlink(fifo_name_msg_srv_to_cli); unlink(fifo_name_info_srv_to_cli); printf("fim\n"); return 0; } client.c: #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <errno.h> #define MAX_INPUT_LENGTH 100 #define PID_BUFFER_LEN 10 #define FIFO_NAME_CMD_CLI_TO_SRV "lrc_cmd_cli_to_srv" #define FIFO_NAME_INFO_SRV_TO_CLI "lrc_info_srv_to_cli" #define FIFO_NAME_MSG_SRV_TO_CLI "lrc_msg_srv_to_cli" #define COMMAND_MAX_LEN 100 #define FIFO_DIR "/tmp/" typedef enum { false, true } bool; char* nickname; char* name; char* email; void write_to_fifo(int fd, char* data) { int n_bytes = (strlen(data)+1) * sizeof(char); write(fd, &n_bytes, sizeof(int)); //primeiro envia o numero de bytes que a proxima instrucao write ira enviar write(fd, data, n_bytes); printf("writing %d bytes '%s'\n", n_bytes, data); } void read_from_fifo(int fd, char** var) { int n_bytes; read(fd, &n_bytes, sizeof(int)); *var = (char *) malloc (n_bytes); printf("read '%s'\n", *var); read(fd, *var, n_bytes); } int main(int argc, char* argv[]) { pid_t pid = getpid(); //CRIA FIFO INFO_SRV_TO_CLIXXX char pid_string[PID_BUFFER_LEN]; sprintf(pid_string, "%d", pid); char* fifo_name_info_srv_to_cli; fifo_name_info_srv_to_cli = (char *) malloc ( (strlen(FIFO_DIR) + strlen(FIFO_NAME_INFO_SRV_TO_CLI) + strlen(pid_string) + 1 ) * sizeof(char) ); strcpy(fifo_name_info_srv_to_cli, FIFO_DIR); strcat(fifo_name_info_srv_to_cli, FIFO_NAME_INFO_SRV_TO_CLI); strcat(fifo_name_info_srv_to_cli, pid_string); int n = mkfifo(fifo_name_info_srv_to_cli, 0660); if (n < 0) { fprintf(stderr, "error creating %s\n", fifo_name_info_srv_to_cli); fprintf(stderr, "errno: %d\n", errno); exit(6); } int fd_cmd_cli_to_srv, fd_info_srv_to_cli; fd_cmd_cli_to_srv = open("/tmp/lrc_cmd_cli_to_srv", O_WRONLY); char command[COMMAND_MAX_LEN]; printf("> "); scanf("%s", command); while (strcmp(command, "/CONNECT")) { printf("O primeiro comando deverá ser \"/CONNECT\"\n"); printf("> "); scanf("%s", command); } //CRIA FIFO MSG_SRV_TO_CLIXXX char* fifo_name_msg_srv_to_cli; fifo_name_msg_srv_to_cli = (char *) malloc ( (strlen(FIFO_DIR) + strlen(FIFO_NAME_MSG_SRV_TO_CLI) + strlen(pid_string) + 1) * sizeof(char) ); strcpy(fifo_name_msg_srv_to_cli, FIFO_DIR); strcat(fifo_name_msg_srv_to_cli, FIFO_NAME_MSG_SRV_TO_CLI); strcat(fifo_name_msg_srv_to_cli, pid_string); n = mkfifo(fifo_name_msg_srv_to_cli, 0660); if (n < 0) { fprintf(stderr, "error creating %s\n", fifo_name_info_srv_to_cli); fprintf(stderr, "errno: %d\n", errno); exit(7); } // ENVIA COMANDO /CONNECT write_to_fifo(fd_cmd_cli_to_srv, pid_string); //envia pid do processo cliente write_to_fifo(fd_cmd_cli_to_srv, command); //envia commando /CONNECT write_to_fifo(fd_cmd_cli_to_srv, fifo_name_info_srv_to_cli); //envia nome de fifo INFO_SRV_TO_CLIXXX write_to_fifo(fd_cmd_cli_to_srv, fifo_name_msg_srv_to_cli); //envia nome de fifo MSG_TO_SRV_TO_CLIXXX // recebe do servidor a resposta ao comanddo /CONNECT printf("msg1\n"); printf("vamos tentar abrir %s\n", fifo_name_info_srv_to_cli); fd_info_srv_to_cli = open(fifo_name_info_srv_to_cli, O_RDONLY); printf("%s aberto", fifo_name_info_srv_to_cli); if (fd_info_srv_to_cli < 0) { fprintf(stderr, "erro ao criar %s\n", fifo_name_info_srv_to_cli); fprintf(stderr, "errno: %d\n", errno); } printf("msg2\n"); char* fifo_name_msg_cli_to_srv; printf("msg3\n"); read_from_fifo(fd_info_srv_to_cli, &fifo_name_msg_cli_to_srv); printf("msg4\n"); free(nickname); free(name); free(email); free(fifo_name_info_srv_to_cli); free(fifo_name_msg_srv_to_cli); unlink(fifo_name_msg_srv_to_cli); unlink(fifo_name_info_srv_to_cli); printf("fim\n"); return 0; } makefile: CC = gcc CFLAGS = -Wall -lpthread -fno-stack-protector all: client server client: client.c $(CC) $(CFLAGS) client.c -o client server: server.c $(CC) $(CFLAGS) server.c -o server clean: rm -f client server *~

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  • Oracle VM repository creation seems contradictory to its server pool?

    - by Michael
    I found something contradictory in Oracle VM. Clustered server pool creation in Oracle VM would format my FC LUN as ocfs2 , and start o2cb & ocfs2 services to build cluster environment. After that, when I wanted to create repository on the serverpool, unexpectedly, it told me that the physical disk I chose which is also my FC LUN, already contains a file system. What a contradictory! So what, delete the file system in serverpool? If so, why created it before?! OVM> list physicaldisk Command: list physicaldisk Status: Success Time: 2012-09-10 06:44:42.660 Data: id:0004fb00001800007765e62381895f61 name:OVM_HDS OVM> create serverpool clusterenable=true virtualip=10.84.21.123 physicaldisk=OVM_HDS name=ovmserverpool Serverpool creation took quite a long time since my FC LUN was big. When the creation completed, my FC LUN was created as ocfs2 and o2cb & ocfs2 services were started on my ovm servers successfully. But then repository creation indeed throws me a big surprise ... OVM> create repository serverpool=ovmserverpool physicaldisk=OVM_HDS name=ovmrepo Command: create repository serverpool=ovmserverpool physicaldisk=OVM_HDS name=ovmrepo Status: Failure Time: 2012-09-10 06:23:44.656 Error Msg: com.oracle.ovm.mgr.api.exception.RuleException: OVMRU_002026E Cannot use or delete physical disk: OVM_HDS, it already contains a file system: [Pool filesystem for ovmserverpool] Mon Sep 10 06:23:44 CST 2012 What should I do now? Delete the filesystem using dd command? That would destroy the serverpool, right? I'm really confused. My OVM Manager version is 3.1.1.399 which is the latest. Any tips are appreciated. Thanks.

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  • Problems setting NTP sever with w32tm for a DC that is a Hyper-V guest

    - by R.Tonheim
    Hello ! I have tried to sett my DC to get its time from several NTP severs. I follow this answer (http://serverfault.com/questions/24298/w32time-sync-problems-for-hyper-v-guests-w32time-event-ids-38-24-29-35/24299#24299) to do it. First I disable Time Synchronization in the Hyper-V Integration Services for each guest. Then restart the Windows Time serviceon the guest. I had before this used this command: w32tm /config /manualpeerlist:"ntp.uio.no;timekeeper. uio.no;nissen.uio.no;0.no.pool.ntp.org;1.no.pool.ntp.org;2.no.pool.ntp.org" /syn cfromflags:manual /reliable:yes /update And the cmd sad: The command completed successfully. But the time was still 10 min wrong... I run w32tm again after restarted the DC without it having any effect. The w32tm /query /status still say: "Source: Local CMOS Clock" FROM MY CMD: Microsoft Windows [Version 6.0.6002] Copyright (c) 2006 Microsoft Corporation. All rights reserved. C:\Users\Administrator.MHGw32tm /query /status Leap Indicator: 0(no warning) Stratum: 1 (primary reference - syncd by radio clock) Precision: -6 (15.625ms per tick) Root Delay: 0.0000000s Root Dispersion: 10.0000000s ReferenceId: 0x4C4F434C (source name: "LOCL") Last Successful Sync Time: 05.09.2009 20:06:21 Source: Local CMOS Clock Poll Interval: 6 (64s) C:\Users\Administrator.MHGw32tm /config /manualpeerlist:"ntp.uio.no;timekeeper. uio.no;nissen.uio.no;0.no.pool.ntp.org;1.no.pool.ntp.org;2.no.pool.ntp.org" /syn cfromflags:manual /reliable:yes /update The command completed successfully. C:\Users\Administrator.MHGw32tm /query /status Leap Indicator: 0(no warning) Stratum: 1 (primary reference - syncd by radio clock) Precision: -6 (15.625ms per tick) Root Delay: 0.0000000s Root Dispersion: 10.0000000s ReferenceId: 0x4C4F434C (source name: "LOCL") Last Successful Sync Time: 05.09.2009 20:06:21 Source: Local CMOS Clock Poll Interval: 6 (64s) C:\Users\Administrator.MHG

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  • Broadcom NIC Teaming w/ 802.3ad and Dell Powerconnect 2824

    - by Carltoncl
    We have a Poweredge R210 running WS2K8R2. The server has two Broadcom 5716C NICs running Broadcom BASP. I can team the NICs using the 802.3ad protocol on the server end no problem. I have no VLAN. Now I go to the 2824 switch (default settings all round) running in managed mode and create a LAG with ports g1 and g2. As soon as I add these ports, I lose the ability to send traffic to or from the server. I am much more of a server guy than a networking guy, what am I doing wrong here? Server Static IP Address: 10.10.61.15 Network mask: 255.255.255.0 Gateway: 10.10.61.51 The 2824 switch has an IP address of 10.10.61.51 and in turn has its gateway as our firewall server running ISA Server at 10.10.61.50.

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  • imapsync - Authentication failed

    - by Touff
    I've deployed many Google Apps accounts and have used imapsync a number of times to migrate accounts to Google Apps. This time however, no matter what I try imapsync refuses to work claiming my credentials are incorrect - I've checked them time and time again and they are 100% correct. On Ubuntu 12, built from source, my command is: imapsync --host1 myserver.com --user1 [email protected] --password1 mypassword1 -ssl1 --host2 imap.gmail.com --user2 [email protected] --password2 mypassword2 -ssl2 -authmech2 PLAIN Full output from the command: get options: [1] PID is 21316 $RCSfile: imapsync,v $ $Revision: 1.592 $ $Date: With perl 5.14.2 Mail::IMAPClient 3.35 Command line used: /usr/bin/imapsync --debug --host1 myserver.com --user1 [email protected] --password1 mypassword1 -ssl1 --host2 imap.gmail.com --user2 [email protected] --password2 mypassword2 -ssl2 -authmech2 PLAIN Temp directory is /tmp PID file is /tmp/imapsync.pid Modules version list: Mail::IMAPClient 3.35 IO::Socket 1.32 IO::Socket::IP ? IO::Socket::INET 1.31 IO::Socket::SSL 1.53 Net::SSLeay 1.42 Digest::MD5 2.51 Digest::HMAC_MD5 1.01 Digest::HMAC_SHA1 1.03 Term::ReadKey 2.30 Authen::NTLM 1.09 File::Spec 3.33 Time::HiRes 1.972101 URI::Escape 3.31 Data::Uniqid 0.12 IMAPClient 3.35 Info: turned ON syncinternaldates, will set the internal dates (arrival dates) on host2 same as host1. Info: will try to use LOGIN authentication on host1 Info: will try to use PLAIN authentication on host2 Info: imap connexions timeout is 120 seconds Host1: IMAP server [SERVER1] port [993] user [USER1] Host2: IMAP server [imap.gmail.com] port [993] user [USER2] Host1: * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE AUTH=PLAIN AUTH=LOGIN] Dovecot ready. Host1: SERVER1 says it has CAPABILITY for AUTHENTICATE LOGIN Host1: success login on [SERVER1] with user [USER1] auth [LOGIN] Host2: * OK Gimap ready for requests from MY-VPS Host2: imap.gmail.com says it has CAPABILITY for AUTHENTICATE PLAIN Failure: error login on [imap.gmail.com] with user [USER2] auth [PLAIN]: 2 NO [AUTHENTICATIONFAILED] Invalid credentials (Failure) I have tried -authmech2 LOGIN as well which returns: Host2: imap.gmail.com says it has NO CAPABILITY for AUTHENTICATE LOGIN Failure: error login on [imap.gmail.com] with user [[email protected]] auth [LOGIN]: 2 NO [AUTHENTICATIONFAILED] Invalid credentials (Failure) If anyone can shed some light on this I would greatly appreciate it.

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  • Have I bricked my Sun V20z?

    - by David Mackintosh
    I have a small pile of Sun V20z computers. I was trying to update the SP and BIOS firmwares in order to bring them all up to the same standard -- mostly to get the updated (ie actually useful) SP functionality, and figured that I would just do the BIOS while I was at it. For three of the four computers, it worked perfectly. However after the BIOS update, the fourth system won't boot. I did this: batch05-mgmt $ sp get mounts Local Remote /mnt 10.16.0.8:/export/v20z batch05-mgmt $ platform set os state update-bios /mnt/sw_images/platform/firmware/bios/V1.35.3.2/bios.sp This command may take several minutes. Please be patient. Bios started Bios Flash Transmit Started Bios Flash Transmit Complete Bios Flash update Progress: 7 Bios Flash update Progress: 6 Bios Flash update Progress: 5 Bios Flash update Progress: 4 Bios Flash update Progress: 3 Bios Flash update Progress: 2 Bios Flash update Progress: 1 Bios Flash update complete batch05-mgmt $ platform set power state on This command may take several minutes. Please be patient. After an hour of waiting, it still won't start. The chassis powers on, but beyond the fans spinning up and the hardware POST of the drives, nothing appears to happen. So if I try to re-flash the BIOS (on the theory that maybe something went wrong): batch05-mgmt $ platform set os state update-bios /mnt/sw_images/platform/firmware/bios/V1.35.3.2/bios.sp This command may take several minutes. Please be patient. Bios started Error. The operation timed out. Have I bricked it?

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