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• Drawing random smooth lines contained in a square [migrated]

  - by Doug Mercer

  I'm trying to write a matlab function that creates random, smooth trajectories in a square of finite side length. Here is my current attempt at such a procedure: function [] = drawroutes( SideLength, v, t) %DRAWROUTES Summary of this function goes here % Detailed explanation goes here %Some parameters intended to help help keep the particles in the box RandAccel=.01; ConservAccel=0; speedlimit=.1; G=10^(-8); % %Initialize Matrices Ax=zeros(v,10*t); Ay=Ax; vx=Ax; vy=Ax; x=Ax; y=Ax; sx=zeros(v,1); sy=zeros(v,1); % %Define initial position in square x(:,1)=SideLength*.15*ones(v,1)+(SideLength*.7)*rand(v,1); y(:,1)=SideLength*.15*ones(v,1)+(SideLength*.7)*rand(v,1); % for i=2:10*t %Measure minimum particle distance component wise from boundary %for each vehicle BorderGravX=[abs(SideLength*ones(v,1)-x(:,i-1)),abs(x(:,i-1))]'; BorderGravY=[abs(SideLength*ones(v,1)-y(:,i-1)),abs(y(:,i-1))]'; rx=min(BorderGravX)'; ry=min(BorderGravY)'; % %Set the sign of the repulsive force for k=1:v if x(k,i)<.5*SideLength sx(k)=1; else sx(k)=-1; end if y(k,i)<.5*SideLength sy(k)=1; else sy(k)=-1; end end % %Calculate Acceleration w/ random "nudge" and repulive force Ax(:,i)=ConservAccel*Ax(:,i-1)+RandAccel*(rand(v,1)-.5*ones(v,1))+sx*G./rx.^2; Ay(:,i)=ConservAccel*Ay(:,i-1)+RandAccel*(rand(v,1)-.5*ones(v,1))+sy*G./ry.^2; % %Ad hoc method of trying to slow down particles from jumping outside of %feasible region for h=1:v if abs(vx(h,i-1)+Ax(h,i))<speedlimit vx(h,i)=vx(h,i-1)+Ax(h,i); elseif (vx(h,i-1)+Ax(h,i))<-speedlimit vx(h,i)=-speedlimit; else vx(h,i)=speedlimit; end end for h=1:v if abs(vy(h,i-1)+Ay(h,i))<speedlimit vy(h,i)=vy(h,i-1)+Ay(h,i); elseif (vy(h,i-1)+Ay(h,i))<-speedlimit vy(h,i)=-speedlimit; else vy(h,i)=speedlimit; end end % %Update position x(:,i)=x(:,i-1)+(vx(:,i-1)+vx(:,i))/2; y(:,i)=y(:,i-1)+(vy(:,i-1)+vy(:,1))/2; % end %Plot position clf; hold on; axis([-100,SideLength+100,-100,SideLength+100]); cc=hsv(v); for j=1:v plot(x(j,1),y(j,1),'ko') plot(x(j,:),y(j,:),'color',cc(j,:)) end hold off; % end My original plan was to place particles within a square, and move them around by allowing their acceleration in the x and y direction to be governed by a uniformly distributed random variable. To keep the particles within the square, I tried to create a repulsive force that would push the particles away from the boundaries of the square. In practice, the particles tend to leave the desired "feasible" region after a relatively small number of time steps (say, 1000)." I'd love to hear your suggestions on either modifying my existing code or considering the problem from another perspective. When reading the code, please don't feel the need to get hung up on any of the ad hoc parameters at the very beginning of the script. They seem to help, but I don't believe any beside the "G" constant should truly be necessary to make this system work. Here is an example of the current output: Many of the vehicles have found their way outside of the desired square region, [0,400] X [0,400].

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• Kinect losing tracked players with Beta2 SDK

  - by Eric B

  So i'm creating a game using the Beta2 SDK for Kinect. The issue i am having is that in the middle of gameplay if another person enters the Kinects FOV it stops tracking the player and will not track anyone else for several minutes. Same deal if the player leaves the FOV and reenters it. Here is what im using to detect players. void nui_SkeletonFrameReady(object sender, SkeletonFrameReadyEventArgs e) { int playersAlive = 0; // reset lists skeletons = new Dictionary<int, SkeletonData>(); //create a new list for skeletons menuSkeleton = new List<SkeletonData>(); initialPlayers = new Dictionary<float, SkeletonData>(); //create a new list for initialPlayers foreach (SkeletonData s in e.SkeletonFrame.Skeletons) //for each skeleton the kinect has detected { if (s.TrackingState == SkeletonTrackingState.Tracked) // players found { menuSkeleton.Add(s); if (initialized) // after initialization { skeletons.Add(s.TrackingID, s); } else // before initialization initialPlayers.Add(s.Joints[JointID.ShoulderCenter].Position.X, s); //if we are not initialized then add this player to the inital player list. playersAlive++; } } if (playersAlive == TOTAL_PLAYERS_ALLOWED) // If there is one player { if (!inMiniGame) // Before the game starts gameStart = DateTime.Now; // Reset initialization timer if (!initialized) // Before initialization // NOTE TO SELF I TOOK OUT && inMenu { InitializePlayers(); if (DateTime.Now.Subtract(gameStart).TotalMilliseconds > INITIALIZATION_WAIT_TIME) { initialized = true; // initialize timers from fixed starting time if (inMiniGame) //if the game has started { gamePause = gameStart; //TODO ERIC: Initialize any Timers Here } } } } } /// <summary> /// this function initializes the players adding them to a list /// and making one of the players the menu controller, for LIM we will need to change the code so that the /// game only recognizes and supports one player at a time /// variable names will need to be change as well. /// </summary> private void InitializePlayers() { List<float> initialPos = new List<float>(); // used to track starting positions players = new Dictionary<int, Player>(); foreach (float pos in initialPlayers.Keys) { initialPos.Add(pos); //add position of each inital player to list } float first = initialPos[0]; // left player first, right second Player player = new Player(initialPlayers[first].TrackingID, true); player.PlayerNumber = PLAYER_ONE; player.Skeleton = initialPlayers[first]; player.Specifics = new PlayerSpecifics(player.PlayerNumber); player.Specifics.PauseTimer = gameStart; players.Add(initialPlayers[first].TrackingID, player); menuController = initialPlayers[first].TrackingID; //menu controller is player 1 } This is a one player game. Also when the game starts Initialize is set to false, and gets set to true when i go from the games menu into the gameplay. So can anyone see any issues with this code block that would cause the kinect to lose players as they enter/exit the FOV? and not re-track them? Thank you for any help.

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• Dont Throw Duplicate Exceptions

  In your code, youll sometimes have write code that validates input using a variety of checks.  Assuming you havent embraced AOP and done everything with attributes, its likely that your defensive coding is going to look something like this: public void Foo(SomeClass someArgument) { if(someArgument == null) { throw new InvalidArgumentException("someArgument"); } if(!someArgument.IsValid()) { throw new InvalidArgumentException("someArgument"); }   // Do Real Work } Do you see a problem here?  Heres the deal Exceptions should be meaningful.  They have value at a number of levels: In the code, throwing an exception lets the develop know that there is an unsupported condition here In calling code, different types of exceptions may be handled differently At runtime, logging of exceptions provides a valuable diagnostic tool Its this last reason I want to focus on.  If you find yourself literally throwing the exact exception in more than one location within a given method, stop.  The stack trace for such an exception is likely going to be identical regardless of which path of execution led to the exception being thrown.  When that happens, you or whomever is debugging the problem will have to guess which exception was thrown.  Guessing is a great way to introduce additional problems and/or greatly increase the amount of time require to properly diagnose and correct any bugs related to this behavior. Dont Guess Be Specific When throwing an exception from multiple code paths within the code, be specific.  Virtually ever exception allows a custom message use it and ensure each case is unique.  If the exception might be handled differently by the caller, than consider implementing a new custom exception type.  Also, dont automatically think that you can improve the code by collapsing the if-then logic into a single call with short-circuiting (e.g. if(x == null || !x.IsValid()) ) that will guarantee that you cant easily throw different information into the message as easily as constructing the exception separately in each case. The code above might be refactored like so:   public void Foo(SomeClass someArgument) { if(someArgument == null) { throw new ArgumentNullException("someArgument"); } if(!someArgument.IsValid()) { throw new InvalidArgumentException("someArgument"); }   // Do Real Work } In this case its taking advantage of the fact that there is already an ArgumentNullException in the framework, but if you didnt have an IsValid() method and were doing validation on your own, it might look like this: public void Foo(SomeClass someArgument) { if(someArgument.Quantity < 0) { throw new InvalidArgumentException("someArgument", "Quantity cannot be less than 0. Quantity: " + someArgument.Quantity); } if(someArgument.Quantity > 100) { throw new InvalidArgumentException("someArgument", "SomeArgument.Quantity cannot exceed 100. Quantity: " + someArgument.Quantity); }   // Do Real Work }   Note that in this last example, Im throwing the same exception type in each case, but with different Message values.  Im also making sure to include the value that resulted in the exception, as this can be extremely useful for debugging.  (How many times have you wished NullReferenceException would tell you the name of the variable it was trying to reference?) Dont add work to those who will follow after you to maintain your application (especially since its likely to be you).  Be specific with your exception messages follow DRY when throwing exceptions within a given method by throwing unique exceptions for each interesting case of invalid state. Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Shrinking a Linux OEL 6 virtual Box image (vdi) hosted on Windows 7

  - by AndyBaker

  v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} Recently for a customer demonstration there was a requirement to build a virtual box image with Oracle Enterprise Manager Cloud Control 12c. This meant installing OEL Linux 6 as well as creating an 11gr2 database and Oracle Enterprise Manager Cloud Control 12c on a single virtual box. Storage was sized at 300Gb using dynamically allocated storage for the virtual box and about 10Gb was used for Linux and the initial build. After copying over all the binaries and performing all the installations the virtual box became in the region of 80Gb used size on the host operating system, however internally it only really needed around 20Gb. This meant 60Gb had been used when copying over all the binaries and although now free was not returned to the host operating system due to the growth of the virtual box storage '.vdi' file.  Once the ‘vdi’ storage had grown it is not shrunk automatically afterwards. Space is always tight on the laptop so it was desirable to shrink the virtual box back to a minimal size and here is the process that was followed. Install 'zerofree' Linux package into the OEL6 virtual box The RPM was downloaded and installed from a site similar to below; http://rpm.pbone.net/index.php3/stat/4/idpl/12548724/com/zerofree-1.0.1-5.el5.i386.rpm.html A simple internet search for ’zerofree Linux rpm’ was easy to perform and find the required rpm. Execute 'zerofree' package on the desired Linux file system To execute this package the desired file system needs to be mounted read only. The following steps outline this process. As root: # umount /u01 As root:# mount –o ro –t ext4 /u01 NOTE: The –o is options and the –t is the file system type found in the /etc/fstab. Next run zerofree against the required storage, this is located by a simple ‘df –h’ command to see the device associated with the mount. As root:# zerofree –v /dev/sda11   NOTE: This takes a while to run but the ‘-v’ option gives feedback on the process. What does Zerofree do? Zerofree’s purpose is to go through the file system and zero out any unused sectors on the volume so that the later stages can shrink the virtual box storage obtaining the free space back. When zerofree has completed the virtual box can be shutdown as the last stage is performed on the physical host where the virtual box vdi files are located. Compact the virtual box ‘.vdi’ files The final stage is to get virtual box to shrink back the storage that has been correctly flagged as free space after executing zerofree. On the physical host in this case a windows 7 laptop a DOS window was opened. At the prompt the first step is to put the virtual box binaries onto the PATH. C:\ >echo %PATH%   The above shows the current value of the PATH environment variable. C:\ >set PATH=%PATH%;c:\program files\Oracle\Virtual Box;   The above adds onto the existing path the virtual box binary location. C:\>cd c:\Users\xxxx\OEL6.1   The above changes directory to where the VDI files are located for the required virtual box machine. C:\Users\xxxxx\OEL6.1>VBoxManage.exe modifyhd zzzzzz.vdi compact  NOTE: The zzzzzz.vdi is the name of the required vdi file to shrink. Finally the above command is executed to perform the compact operation on the ‘.vdi’ file(s). This also takes a long time to complete but shrinks the VDI file back to a minimum size. In the case of the demonstration virtual box OEM12c this reduced the virtual box to 20Gb from 80Gb which was a great outcome to achieve.

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• Single use download script - Modification [on hold]

  - by Iulius

  I have this Single use download script! This contain 3 php files: page.php , generate.php and variables.php. Page.php Code: <?php include("variables.php"); $key = trim($_SERVER['QUERY_STRING']); $keys = file('keys/keys'); $match = false; foreach($keys as &$one) { if(rtrim($one)==$key) { $match = true; $one = ''; } } file_put_contents('keys/keys',$keys); if($match !== false) { $contenttype = CONTENT_TYPE; $filename = SUGGESTED_FILENAME; readfile(PROTECTED_DOWNLOAD); exit; } else { ?> <html> <head> <meta http-equiv="refresh" content="1; url=http://docs.google.com/"> <title>Loading, please wait ...</title> </head> <body> Loading, please wait ... </body> </html> <?php } ?> Generate.php Code: <?php include("variables.php"); $password = trim($_SERVER['QUERY_STRING']); if($password == ADMIN_PASSWORD) { $new = uniqid('key',TRUE); if(!is_dir('keys')) { mkdir('keys'); $file = fopen('keys/.htaccess','w'); fwrite($file,"Order allow,deny\nDeny from all"); fclose($file); } $file = fopen('keys/keys','a'); fwrite($file,"{$new}\n"); fclose($file); ?> <html> <head> <title>Page created</title> <style> nl { font-family: monospace } </style> </head> <body> <h1>Page key created</h1> Your new single-use page link:<br> <nl> <?php echo "http://" . $_SERVER['HTTP_HOST'] . DOWNLOAD_PATH . "?" . $new; ?></nl> </body> </html> <?php } else { header("HTTP/1.0 404 Not Found"); } ?> And the last one Variables.php Code: <? define('PROTECTED_DOWNLOAD','download.php'); define('DOWNLOAD_PATH','/.work/page.php'); define('SUGGESTED_FILENAME','download-doc.php'); define('ADMIN_PASSWORD','1234'); define('EXPIRATION_DATE', '+36 hours'); header("Cache-Control: no-cache, must-revalidate"); header("Expires: ".date('U', strtotime(EXPIRATION_DATE))); ?> The http://www.site.com/generate.php?1234 will generate a unique link like page.php?key1234567890. This link page.php?key1234567890 will be sent by email to my user. Now how can I generate a link like this page.php?key1234567890&[email protected] ? So I think I must access the generator page like this generate.php?1234&[email protected] . P.S. This variable will be posted on the download page by "Hello, " I tried everthing to complete this, and no luck. Thanks in advance for help.

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• No Wireless Networks, BCM4313 [duplicate]

  - by TalonPlz

  This question already has an answer here: How to Install Broadcom Wireless Drivers (BCM43xx) 38 answers Just bought this little Asus 10 inch laptop that came with Ubuntu 12.04. Everything at my home was fine: Wireless identified and connected. As soon as I went to my girlfriend's house the trouble started. I couldn't connect to wireless (authentication... times out and asks for authentication) I started doing internet searching, tried a few solutions posted on line using terminal commands. No solutions. I decided to upgraded to 12.10-13.04 and that left me with a worse problem: I can no longer see ANY networks what so ever. Wireless card is ON, with out a doubt. Wired connection works. I have been fumbling with driver versions to no .avail, and have no idea which driver I am currently running I have a vague idea of what terminal lines to run: lshw: resources: irq:17 memory:f7d00000-f7dfffff *-network description: Wireless interface product: BCM4313 802.11b/g/n Wireless LAN Controller vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:02:00.0 logical name: eth2 version: 01 serial: dc:85:de:56:c4:ea width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=wl0 driverversion=6.20.155.1 (r326264) latency=0 multicast=yes wireless=IEEE 802.11abg resources: irq:17 memory:f7d00000-f7d03fff iwconfig: eth1 no wireless extensions. eth2 IEEE 802.11abg ESSID:off/any Mode:Managed Access Point: Not-Associated Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off lo no wireless extensions. I am new and excited to start my Ubuntu and Linux life and this is only the first of my few hic cups i am sure! :) Thanks all UPDATE: Report from 2nd answer talon@Black1015E:~$ sudo apt-get remove --purge bcmwl-kernel-source [sudo] password for talon: Reading package lists... Done Building dependency tree Reading state information... Done Package 'bcmwl-kernel-source' is not installed, so not removed 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. talon@Black1015E:~$ wget http://us.archive.ubuntu.com/ubuntu/pool/restricted/b/bcmwl/bcmwl-kernel-source_5.100.82.112+bdcom-0ubuntu3_amd64.deb --2013-10-22 18:50:32-- http://us.archive.ubuntu.com/ubuntu/pool/restricted/b/bcmwl/bcmwl-kernel-source_5.100.82.112+bdcom-0ubuntu3_amd64.deb Resolving us.archive.ubuntu.com (us.archive.ubuntu.com)... 2001:67c:1562::15, 2001:67c:1562::13, 2001:67c:1562::14, ... Connecting to us.archive.ubuntu.com (us.archive.ubuntu.com)|2001:67c:1562::15|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 1181334 (1.1M) [application/x-debian-package] Saving to: ‘bcmwl-kernel-source_5.100.82.112+bdcom-0ubuntu3_amd64.deb’ 100%[======================================>] 1,181,334 3.37MB/s in 0.3s 2013-10-22 18:50:33 (3.37 MB/s) - ‘bcmwl-kernel-source_5.100.82.112+bdcom-0ubuntu3_amd64.deb’ saved [1181334/1181334] talon@Black1015E:~$ arvh No command 'arvh' found, did you mean: Command 'arch' from package 'coreutils' (main) arvh: command not found talon@Black1015E:~$ arch x86_64 talon@Black1015E:~$ sudo dpkg -i bcmwl*.deb Selecting previously unselected package bcmwl-kernel-source. (Reading database ... 171895 files and directories currently installed.) Unpacking bcmwl-kernel-source (from bcmwl-kernel-source_5.100.82.112+bdcom-0ubuntu3_amd64.deb) ... Setting up bcmwl-kernel-source (5.100.82.112+bdcom-0ubuntu3) ... Loading new bcmwl-5.100.82.112+bdcom DKMS files... First Installation: checking all kernels... Building only for 3.8.0-32-generic Building for architecture x86_64 Building initial module for 3.8.0-32-generic Done. wl: Running module version sanity check. - Original module - No original module exists within this kernel - Installation - Installing to /lib/modules/3.8.0-32-generic/updates/dkms/ depmod........ DKMS: install completed. Error: Module b43 is not currently loaded Error: Module b43legacy is not currently loaded Error: Module ssb is not currently loaded Error: Module bcm43xx is not currently loaded Error: Module brcm80211 is not currently loaded Error: Module brcmfmac is not currently loaded update-initramfs: deferring update (trigger activated) Processing triggers for initramfs-tools ... update-initramfs: Generating /boot/initrd.img-3.8.0-32-generic rebooting now

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• django/python: is one view that handles two sibling models a good idea?

  - by clime

  I am using django multi-table inheritance: Video and Image are models derived from Media. I have implemented two views: video_list and image_list, which are just proxies to media_list. media_list returns images or videos (based on input parameter model) for a certain object, which can be of type Event, Member, or Crag. The view alters its behaviour based on input parameter action (better name would be mode), which can be of value "edit" or "view". The problem is that I need to ask whether the input parameter model contains Video or Image in media_list so that I can do the right thing. Similar condition is also in helper method media_edit_list that is called from the view. I don't particularly like it but the only alternative I can think of is to have separate (but almost the same) logic for video_list and image_list and then probably also separate helper methods for videos and images: video_edit_list, image_edit_list, video_view_list, image_view_list. So four functions instead of just two. That I like even less because the video functions would be very similar to the respective image functions. What do you recommend? Here is extract of relevant parts: http://pastebin.com/07t4bdza. I'll also paste the code here: #urls url(r'^media/images/(?P<rel_model_tag>(event|member|crag))/(?P<rel_object_id>\d+)/(?P<action>(view|edit))/$', views.image_list, name='image-list') url(r'^media/videos/(?P<rel_model_tag>(event|member|crag))/(?P<rel_object_id>\d+)/(?P<action>(view|edit))/$', views.video_list, name='video-list') #views def image_list(request, rel_model_tag, rel_object_id, mode): return media_list(request, Image, rel_model_tag, rel_object_id, mode) def video_list(request, rel_model_tag, rel_object_id, mode): return media_list(request, Video, rel_model_tag, rel_object_id, mode) def media_list(request, model, rel_model_tag, rel_object_id, mode): rel_model = tag_to_model(rel_model_tag) rel_object = get_object_or_404(rel_model, pk=rel_object_id) if model == Image: star_media = rel_object.star_image else: star_media = rel_object.star_video filter_params = {} if rel_model == Event: filter_params['event'] = rel_object_id elif rel_model == Member: filter_params['members'] = rel_object_id elif rel_model == Crag: filter_params['crag'] = rel_object_id media_list = model.objects.filter(~Q(id=star_media.id)).filter(**filter_params).order_by('date_added').all() context = { 'media_list': media_list, 'star_media': star_media, } if mode == 'edit': return media_edit_list(request, model, rel_model_tag, rel_object_id, context) return media_view_list(request, model, rel_model_tag, rel_object_id, context) def media_view_list(request, model, rel_model_tag, rel_object_id, context): if request.is_ajax(): context['base_template'] = 'boxes/base-lite.html' return render(request, 'media/list-items.html', context) def media_edit_list(request, model, rel_model_tag, rel_object_id, context): if model == Image: get_media_edit_record = get_image_edit_record else: get_media_edit_record = get_video_edit_record media_list = [get_media_edit_record(media, rel_model_tag, rel_object_id) for media in context['media_list']] if context['star_media']: star_media = get_media_edit_record(context['star_media'], rel_model_tag, rel_object_id) else: star_media = None json = simplejson.dumps({ 'star_media': star_media, 'media_list': media_list, }) return HttpResponse(json, content_type=json_response_mimetype(request)) def get_image_edit_record(image, rel_model_tag, rel_object_id): record = { 'url': image.image.url, 'name': image.title or image.filename, 'type': mimetypes.guess_type(image.image.path)[0] or 'image/png', 'thumbnailUrl': image.thumbnail_2.url, 'size': image.image.size, 'id': image.id, 'media_id': image.media_ptr.id, 'starUrl':reverse('image-star', kwargs={'image_id': image.id, 'rel_model_tag': rel_model_tag, 'rel_object_id': rel_object_id}), } return record def get_video_edit_record(video, rel_model_tag, rel_object_id): record = { 'url': video.embed_url, 'name': video.title or video.url, 'type': None, 'thumbnailUrl': video.thumbnail_2.url, 'size': None, 'id': video.id, 'media_id': video.media_ptr.id, 'starUrl': reverse('video-star', kwargs={'video_id': video.id, 'rel_model_tag': rel_model_tag, 'rel_object_id': rel_object_id}), } return record # models class Media(models.Model, WebModel): title = models.CharField('title', max_length=128, default='', db_index=True, blank=True) event = models.ForeignKey(Event, null=True, default=None, blank=True) crag = models.ForeignKey(Crag, null=True, default=None, blank=True) members = models.ManyToManyField(Member, blank=True) added_by = models.ForeignKey(Member, related_name='added_images') date_added = models.DateTimeField('date added', auto_now_add=True, null=True, default=None, editable=False) class Image(Media): image = ProcessedImageField(upload_to='uploads', processors=[ResizeToFit(width=1024, height=1024, upscale=False)], format='JPEG', options={'quality': 75}) thumbnail_1 = ImageSpecField(source='image', processors=[SmartResize(width=178, height=134)], format='JPEG', options={'quality': 75}) thumbnail_2 = ImageSpecField(source='image', #processors=[SmartResize(width=256, height=192)], processors=[ResizeToFit(height=164)], format='JPEG', options={'quality': 75}) class Video(Media): url = models.URLField('url', max_length=256, default='') embed_url = models.URLField('embed url', max_length=256, default='', blank=True) author = models.CharField('author', max_length=64, default='', blank=True) thumbnail = ProcessedImageField(upload_to='uploads', processors=[ResizeToFit(width=1024, height=1024, upscale=False)], format='JPEG', options={'quality': 75}, null=True, default=None, blank=True) thumbnail_1 = ImageSpecField(source='thumbnail', processors=[SmartResize(width=178, height=134)], format='JPEG', options={'quality': 75}) thumbnail_2 = ImageSpecField(source='thumbnail', #processors=[SmartResize(width=256, height=192)], processors=[ResizeToFit(height=164)], format='JPEG', options={'quality': 75}) class Crag(models.Model, WebModel): name = models.CharField('name', max_length=64, default='', db_index=True) normalized_name = models.CharField('normalized name', max_length=64, default='', editable=False) type = models.IntegerField('crag type', null=True, default=None, choices=crag_types) description = models.TextField('description', default='', blank=True) country = models.ForeignKey('country', null=True, default=None) #TODO: make this not null when db enables it latitude = models.FloatField('latitude', null=True, default=None) longitude = models.FloatField('longitude', null=True, default=None) location_index = FixedCharField('location index', length=24, default='', editable=False, db_index=True) # handled by db, used for marker clustering added_by = models.ForeignKey('member', null=True, default=None) #route_count = models.IntegerField('route count', null=True, default=None, editable=False) date_created = models.DateTimeField('date created', auto_now_add=True, null=True, default=None, editable=False) last_modified = models.DateTimeField('last modified', auto_now=True, null=True, default=None, editable=False) star_image = models.ForeignKey('Image', null=True, default=None, related_name='star_crags', on_delete=models.SET_NULL) star_video = models.ForeignKey('Video', null=True, default=None, related_name='star_crags', on_delete=models.SET_NULL)

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• MVC Communication Pattern

  - by Kedu

  This is kind of a follow up question to this http://stackoverflow.com/questions/23743285/model-view-controller-and-callbacks, but I wanted to post it separately, because its kind of a different topic. I'm working on a multiplayer cardgame for the Android platform. I split the project into MVC which fits the needs pretty good, but I'm currently stuck because I can't figure out a good way to communicate between the different parts. I have everything setup and working with the controller being a big state machine, which is called over and over from the gameloop, and calls getter methods from the GUI and the android/network part to get the input. The input itself in the GUI and network is set by inputlisteners that set a local variable which I read in the getter method. So far so good, this is working. But my problem is, the controller has to check every input separately,so if I want to add an input I have to check in which states its valid and call the getter method from all these states. This is not good, and lets the code look pretty ugly, makes additions uncomfortable and adds redundance. So what I've got from the question I mentioned above is that some kind of command or event pattern will fit my needs. What I want to do is to create a shared and threadsafe queue in the controller and instead of calling all these getter methods, I just check the queue for new input and proceed it. On the other side, the GUI and network don't have all these getters, but instead create an event or command and send it to the controller through, for example, observer/observable. Now my problem: I can't figure out a way, for these commands/events to fit a common interface (which the queue can store) and still transport different kind of data (button clicks, cards that are played, the player id the command comes from, synchronization data etc.). If I design the communication as command pattern, I have to stick all the information that is needed to execute the command into it when its created, that's impossible because the GUI or network has no knowledge of all the things the controller needs to execute stuff that needs to be done when for example a card is played. I thought about getting this stuff into the command when executing it. But over all the different commands I have, I would need all the information the controller has, and thus give the command a reference to the controller which would make everything in it public, which is real bad design I guess. So, I could try some kind of event pattern. I have to transport data in the event. So, like the command, I would have an interface, which all events have in common, and can be stored in the shared queue. I could create a big enum with all the different events that a are possible, save one of these enums in the actual event, and build a big switch case for the events, to proceed different stuff for different events. The problem here: I have different data for all the events. But I need a common interface, to store the events in a queue. How do I get the specific data, if I can only access the event through the interface? Even if that wouldn't be a problem, I'm creating another big switch case, which looks ugly, and when i want to add a new event, I have to create the event itself, the case, the enum, and the method that's called with the data. I could of course check the event with the enum and cast it to its type, so I can call event type specific methods that give me the data I need, but that looks like bad design too.

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• django/python: is one view that handles two separate models a good idea?

  - by clime

  I am using django multi-table inheritance: Video and Image are models derived from Media. I have implemented two views: video_list and image_list, which are just proxies to media_list. media_list returns images or videos (based on input parameter model) for a certain object, which can be of type Event, Member, or Crag. It alters its behaviour based on input parameter action, which can be either "edit" or "view". The problem is that I need to ask whether the input parameter model contains Video or Image in media_list so that I can do the right thing. Similar condition is also in helper method media_edit_list that is called from the view. I don't particularly like it but the only alternative I can think of is to have separate logic for video_list and image_list and then probably also separate helper methods for videos and images: video_edit_list, image_edit_list, video_view_list, image_view_list. So four functions instead of just two. That I like even less because the video functions would be very similar to the respective image functions. What do you recommend? Here is extract of relevant parts: http://pastebin.com/07t4bdza. I'll also paste the code here: #urls url(r'^media/images/(?P<rel_model_tag>(event|member|crag))/(?P<rel_object_id>\d+)/(?P<action>(view|edit))/$', views.video_list, name='image-list') url(r'^media/videos/(?P<rel_model_tag>(event|member|crag))/(?P<rel_object_id>\d+)/(?P<action>(view|edit))/$', views.image_list, name='video-list') #views def image_list(request, rel_model_tag, rel_object_id, action): return media_list(request, Image, rel_model_tag, rel_object_id, action) def video_list(request, rel_model_tag, rel_object_id, action): return media_list(request, Video, rel_model_tag, rel_object_id, action) def media_list(request, model, rel_model_tag, rel_object_id, action): rel_model = tag_to_model(rel_model_tag) rel_object = get_object_or_404(rel_model, pk=rel_object_id) if model == Image: star_media = rel_object.star_image else: star_media = rel_object.star_video filter_params = {} if rel_model == Event: filter_params['media__event'] = rel_object_id elif rel_model == Member: filter_params['media__members'] = rel_object_id elif rel_model == Crag: filter_params['media__crag'] = rel_object_id media_list = model.objects.filter(~Q(id=star_media.id)).filter(**filter_params).order_by('media__date_added').all() context = { 'media_list': media_list, 'star_media': star_media, } if action == 'edit': return media_edit_list(request, model, rel_model_tag, rel_model_id, context) return media_view_list(request, model, rel_model_tag, rel_model_id, context) def media_view_list(request, model, rel_model_tag, rel_object_id, context): if request.is_ajax(): context['base_template'] = 'boxes/base-lite.html' return render(request, 'media/list-items.html', context) def media_edit_list(request, model, rel_model_tag, rel_object_id, context): if model == Image: get_media_record = get_image_record else: get_media_record = get_video_record media_list = [get_media_record(media, rel_model_tag, rel_object_id) for media in context['media_list']] if context['star_media']: star_media = get_media_record(star_media, rel_model_tag, rel_object_id) star_media['starred'] = True else: star_media = None json = simplejson.dumps({ 'star_media': star_media, 'media_list': media_list, }) return HttpResponse(json, content_type=json_response_mimetype(request)) # models class Media(models.Model, WebModel): title = models.CharField('title', max_length=128, default='', db_index=True, blank=True) event = models.ForeignKey(Event, null=True, default=None, blank=True) crag = models.ForeignKey(Crag, null=True, default=None, blank=True) members = models.ManyToManyField(Member, blank=True) added_by = models.ForeignKey(Member, related_name='added_images') date_added = models.DateTimeField('date added', auto_now_add=True, null=True, default=None, editable=False) def __unicode__(self): return self.title def get_absolute_url(self): return self.image.url if self.image else self.video.embed_url class Image(Media): image = ProcessedImageField(upload_to='uploads', processors=[ResizeToFit(width=1024, height=1024, upscale=False)], format='JPEG', options={'quality': 75}) thumbnail_1 = ImageSpecField(source='image', processors=[SmartResize(width=178, height=134)], format='JPEG', options={'quality': 75}) thumbnail_2 = ImageSpecField(source='image', #processors=[SmartResize(width=256, height=192)], processors=[ResizeToFit(height=164)], format='JPEG', options={'quality': 75}) class Video(Media): url = models.URLField('url', max_length=256, default='') embed_url = models.URLField('embed url', max_length=256, default='', blank=True) author = models.CharField('author', max_length=64, default='', blank=True) thumbnail = ProcessedImageField(upload_to='uploads', processors=[ResizeToFit(width=1024, height=1024, upscale=False)], format='JPEG', options={'quality': 75}, null=True, default=None, blank=True) thumbnail_1 = ImageSpecField(source='thumbnail', processors=[SmartResize(width=178, height=134)], format='JPEG', options={'quality': 75}) thumbnail_2 = ImageSpecField(source='thumbnail', #processors=[SmartResize(width=256, height=192)], processors=[ResizeToFit(height=164)], format='JPEG', options={'quality': 75}) class Crag(models.Model, WebModel): name = models.CharField('name', max_length=64, default='', db_index=True) normalized_name = models.CharField('normalized name', max_length=64, default='', editable=False) type = models.IntegerField('crag type', null=True, default=None, choices=crag_types) description = models.TextField('description', default='', blank=True) country = models.ForeignKey('country', null=True, default=None) #TODO: make this not null when db enables it latitude = models.FloatField('latitude', null=True, default=None) longitude = models.FloatField('longitude', null=True, default=None) location_index = FixedCharField('location index', length=24, default='', editable=False, db_index=True) # handled by db, used for marker clustering added_by = models.ForeignKey('member', null=True, default=None) #route_count = models.IntegerField('route count', null=True, default=None, editable=False) date_created = models.DateTimeField('date created', auto_now_add=True, null=True, default=None, editable=False) last_modified = models.DateTimeField('last modified', auto_now=True, null=True, default=None, editable=False) star_image = models.OneToOneField('Image', null=True, default=None, related_name='star_crags', on_delete=models.SET_NULL) star_video = models.OneToOneField('Video', null=True, default=None, related_name='star_crags', on_delete=models.SET_NULL)

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• XNA WP7 Texture memory and ContentManager

  - by jlongstreet

  I'm trying to get my WP7 XNA game's memory under control and under the 90MB limit for submission. One target I identified was UI textures, especially fullscreen ones, that would never get unloaded. So I moved UI texture loads to their own ContentManager so I can unload them. However, this doesn't seem to affect the value of Microsoft.Phone.Info.DeviceExtendedProperties.GetValue("ApplicationCurrentMemoryUsage"), so it doesn't look like the memory is actually being released. Example: splash screens. In Game.LoadContent(): Application.Instance.SetContentManager("UI"); // set the current content manager for (int i = 0; i < mSplashTextures.Length; ++i) { // load the splash textures mSplashTextures[i] = Application.Instance.Content.Load<Texture2D>(msSplashTextureNames[i]); } // set the content manager back to the global one Application.Instance.SetContentManager("Global"); When the initial load is done and the title screen starts, I do: Application.Instance.GetContentManager("UI").Unload(); The three textures take about 6.5 MB of memory. Before unloading the UI ContentManager, I see that ApplicationCurrentMemoryUsage is at 34.29 MB. After unloading the ContentManager (and doing a full GC.Collect()), it's still at 34.29 MB. But after that, I load another fullscreen texture (for the title screen background) and memory usage still doesn't change. Could it be keeping the memory for these textures allocated and reusing it? edit: very simple test: protected override void LoadContent() { // Create a new SpriteBatch, which can be used to draw textures. spriteBatch = new SpriteBatch(GraphicsDevice); PrintMemUsage("Before texture load: "); // TODO: use this.Content to load your game content here red = this.Content.Load<Texture2D>("Untitled"); PrintMemUsage("After texture load: "); } private void PrintMemUsage(string tag) { Debug.WriteLine(tag + Microsoft.Phone.Info.DeviceExtendedProperties.GetValue("ApplicationCurrentMemoryUsage")); } protected override void Update(GameTime gameTime) { // Allows the game to exit if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed) this.Exit(); // TODO: Add your update logic here if (count++ == 100) { GC.Collect(); GC.WaitForPendingFinalizers(); PrintMemUsage("Before CM unload: "); this.Content.Dispose(); GC.Collect(); GC.WaitForPendingFinalizers(); PrintMemUsage("After CM unload: "); red = null; spriteBatch.Dispose(); GC.Collect(); GC.WaitForPendingFinalizers(); PrintMemUsage("After SpriteBatch Dispose(): "); } base.Update(gameTime); } protected override void Draw(GameTime gameTime) { GraphicsDevice.Clear(Color.CornflowerBlue); // TODO: Add your drawing code here if (red != null) { spriteBatch.Begin(); spriteBatch.Draw(red, new Vector2(0,0), Color.White); spriteBatch.End(); } base.Draw(gameTime); } This prints something like (it changes every time): Before texture load: 7532544 After texture load: 10727424 Before CM unload: 9875456 After CM unload: 9953280 After SpriteBatch Dispose(): 9953280

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• Using 3rd Party JavaScript Plugins Hardwired With &lsquo;document.write&rsquo;

  - by ToStringTheory

  Introduction Have you ever had the need to implement a 3rd party JavaScript plugin, but your needs didn’t fit the model and usage defined by the API or documentation of the plugin?  Recently I ran into this issue when I was trying to implement a web snapshot plugin into our site.  To use their plugin, you had to include a script tag to the plugin on their server with an API key.  The second part of the usage was to include a <script> tag around a function call wherever you wanted a snapshot to appear. The Problem When trying to use the service, the images did not display.  I checked a couple of things and didn’t find anything wrong at first..  It wasn’t until I looked at the function that was called by the inline script did I find the issue – a call to the webservice, followed by a call to ‘document.write’ in its callback.  The solution in which I was trying to implement the plugin happened to be in response to an AJAX call after the document had completely loaded.  After the page has loaded, document.write does nothing. My first thought for a solution was to just cache the script from the service, and edit it do something like a return function or callback that I could use to edit the document from.  However, I quickly discovered that there is no way to cache the script from the service, as it had a hash in the function where it would call the server.  The hash was updated every few seconds/minutes, expiring old hashes.  This meant that I wouldn’t be able to edit the script and upload a new version to my server, as the script would not work after a few minutes from originally getting the script from the service. Solution The solution eluded me until I realized that this was JavaScript I was dealing with.  A language designed so that you could do just about anything to any library, function, or object…  At this point, the solution was simple – take control of the document.write function.  Using a buffer variable, and a simple function call, it is eerily simple to perform: //what would have been output to the document var buffer = ""; //store a reference to the real document.write var dw = document.write; //redefine document.write to store to our buffer document.write = function (str) {buffer += str;} //execute the function containing calls to document.write eval('{function encapsulated in <script></script> tags}'); //restore the original document.write function (just in case) document.write = dw; That’s it.  Instead of using the script tags where I wanted to include a snapshot, I called a function passing in the URL to the page I wanted a snapshot of.  After that last line of code, what would have been output to the document (or not in the case of the ajax call) was instead stored in buffer. Conclusion While the solution itself is simple, coming from a background much more footed in the .Net platform, I believe that this is a prime example of always keeping the language that you are working in in mind.  While this may seem obvious at first, as I KNEW I was in JavaScript, I never thought of taking control of the document.write function because I am more accustomed to the .Net world.  I can’t simply replace the functionality of Console.WriteLine.

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• BlockingCollection having issues with byte arrays

  - by MJLaukala

  I am having an issue where an object with a byte[20] is being passed into a BlockingCollection on one thread and another thread returning the object with a byte[0] using BlockingCollection.Take(). I think this is a threading issue but I do not know where or why this is happening considering that BlockingCollection is a concurrent collection. Sometimes on thread2, myclass2.mybytes equals byte[0]. Any information on how to fix this is greatly appreciated. MessageBuffer.cs public class MessageBuffer : BlockingCollection<Message> { } In the class that has Listener() and ReceivedMessageHandler(object messageProcessor) private MessageBuffer RecievedMessageBuffer; On Thread1 private void Listener() { while (this.IsListening) { try { Message message = Message.ReadMessage(this.Stream, this); if (message != null) { this.RecievedMessageBuffer.Add(message); } } catch (IOException ex) { if (!this.Client.Connected) { this.OnDisconnected(); } else { Logger.LogException(ex.ToString()); this.OnDisconnected(); } } catch (Exception ex) { Logger.LogException(ex.ToString()); this.OnDisconnected(); } } } Message.ReadMessage(NetworkStream stream, iTcpConnectClient client) public static Message ReadMessage(NetworkStream stream, iTcpConnectClient client) { int ClassType = -1; Message message = null; try { ClassType = stream.ReadByte(); if (ClassType == -1) { return null; } if (!Message.IDTOCLASS.ContainsKey((byte)ClassType)) { throw new IOException("Class type not found"); } message = Message.GetNewMessage((byte)ClassType); message.Client = client; message.ReadData(stream); if (message.Buffer.Length < message.MessageSize + Message.HeaderSize) { return null; } } catch (IOException ex) { Logger.LogException(ex.ToString()); throw ex; } catch (Exception ex) { Logger.LogException(ex.ToString()); //throw ex; } return message; } On Thread2 private void ReceivedMessageHandler(object messageProcessor) { if (messageProcessor != null) { while (this.IsListening) { Message message = this.RecievedMessageBuffer.Take(); message.Reconstruct(); message.HandleMessage(messageProcessor); } } else { while (this.IsListening) { Message message = this.RecievedMessageBuffer.Take(); message.Reconstruct(); message.HandleMessage(); } } } PlayerStateMessage.cs public class PlayerStateMessage : Message { public GameObject PlayerState; public override int MessageSize { get { return 12; } } public PlayerStateMessage() : base() { this.PlayerState = new GameObject(); } public PlayerStateMessage(GameObject playerState) { this.PlayerState = playerState; } public override void Reconstruct() { this.PlayerState.Poisiton = this.GetVector2FromBuffer(0); this.PlayerState.Rotation = this.GetFloatFromBuffer(8); base.Reconstruct(); } public override void Deconstruct() { this.CreateBuffer(); this.AddToBuffer(this.PlayerState.Poisiton, 0); this.AddToBuffer(this.PlayerState.Rotation, 8); base.Deconstruct(); } public override void HandleMessage(object messageProcessor) { ((MessageProcessor)messageProcessor).ProcessPlayerStateMessage(this); } } Message.GetVector2FromBuffer(int bufferlocation) This is where the exception is thrown because this.Buffer is byte[0] when it should be byte[20]. public Vector2 GetVector2FromBuffer(int bufferlocation) { return new Vector2( BitConverter.ToSingle(this.Buffer, Message.HeaderSize + bufferlocation), BitConverter.ToSingle(this.Buffer, Message.HeaderSize + bufferlocation + 4)); }

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• Validation and authorization in layered architecture

  - by SonOfPirate

  I know you are thinking (or maybe yelling), "not another question asking where validation belongs in a layered architecture?!?" Well, yes, but hopefully this will be a little bit of a different take on the subject. I am a firm believer that validation takes many forms, is context-based and varies at each level of the architecture. That is the basis for the post - helping to identify what type of validation should be performed in each layer. In addition, a question that often comes up is where authorization checks belong. The example scenario comes from an application for a catering business. Periodically during the day, a driver may turn in to the office any excess cash they've accumulated while taking the truck from site to site. The application allows a user to record the 'cash drop' by collecting the driver's ID, and the amount. Here's some skeleton code to illustrate the layers involved: public class CashDropApi // This is in the Service Facade Layer { [WebInvoke(Method = "POST")] public void AddCashDrop(NewCashDropContract contract) { // 1 Service.AddCashDrop(contract.Amount, contract.DriverId); } } public class CashDropService // This is the Application Service in the Domain Layer { public void AddCashDrop(Decimal amount, Int32 driverId) { // 2 CommandBus.Send(new AddCashDropCommand(amount, driverId)); } } internal class AddCashDropCommand // This is a command object in Domain Layer { public AddCashDropCommand(Decimal amount, Int32 driverId) { // 3 Amount = amount; DriverId = driverId; } public Decimal Amount { get; private set; } public Int32 DriverId { get; private set; } } internal class AddCashDropCommandHandler : IHandle<AddCashDropCommand> { internal ICashDropFactory Factory { get; set; } // Set by IoC container internal ICashDropRepository CashDrops { get; set; } // Set by IoC container internal IEmployeeRepository Employees { get; set; } // Set by IoC container public void Handle(AddCashDropCommand command) { // 4 var driver = Employees.GetById(command.DriverId); // 5 var authorizedBy = CurrentUser as Employee; // 6 var cashDrop = Factory.CreateCashDrop(command.Amount, driver, authorizedBy); // 7 CashDrops.Add(cashDrop); } } public class CashDropFactory { public CashDrop CreateCashDrop(Decimal amount, Employee driver, Employee authorizedBy) { // 8 return new CashDrop(amount, driver, authorizedBy, DateTime.Now); } } public class CashDrop // The domain object (entity) { public CashDrop(Decimal amount, Employee driver, Employee authorizedBy, DateTime at) { // 9 ... } } public class CashDropRepository // The implementation is in the Data Access Layer { public void Add(CashDrop item) { // 10 ... } } I've indicated 10 locations where I've seen validation checks placed in code. My question is what checks you would, if any, be performing at each given the following business rules (along with standard checks for length, range, format, type, etc): The amount of the cash drop must be greater than zero. The cash drop must have a valid Driver. The current user must be authorized to add cash drops (current user is not the driver). Please share your thoughts, how you have or would approach this scenario and the reasons for your choices.

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• D&rsquo;Arcy&rsquo;s Book Club - The New Strategic Selling

  - by D'Arcy Lussier

  The New Strategic Selling Miller and Heiman Amazon.ca Amazon.com Chapters Everybody is a salesmen. Every day, without knowing it, we sell something to someone. Now, the typical vision people think of when they hear the word “sales” is the sleazy used car salesperson who does whatever they can to get you to buy the clunker on their lot. But selling is not an action tied to money and products. Selling is about convincing people to see your point of view and act on it. If you want your company to cover a trip to a conference, you may have to sell the idea to your boss. If you want to buy that new big screen TV, you have to sell the idea to your significant other. If you want to go on a weekend fishing trip with the boys you might be called in to help sell the idea to your buddies wife. We all sell, but we don’t all sell very well. So enter The New Strategic Selling, a book based on the sales course put on by the Miller-Heiman group. In fact, this isn’t really a “New” strategy to selling as its been around for a number of years. But the concepts they present, the ideas about selling, these are still very radical based on what most of us have experienced. Gone are the high pressure, win at all cost, GlenGarry-GlenRoss style of sales…instead the book presents a framework to switch to need-based selling. It’s the idea that instead of going in raving about a product or service, you build a relationship where the buyer expresses what their needs are and your response is to present a solution that best fits that need. Instead of focussing on the amount of money you can squeeze out of a client, you focus on whether everyone wins, that they receive win-results from the engagement, that repeat business is developed over time delivering value over and over again. The great thing about the book is that what it teaches…things like how to identify different buying influencers, how to prepare for meetings, techniques to solicit information about what the buyer is really thinking/feeling…these things are entirely applicable in *any* situation that you need to sell to someone…and remember: selling is convincing people to see your point of view and act on it. So that new big screen TV you want to buy but need to convince your wife on? This book can help you. That training opportunity you want your company to send you on? This book can help you. The upgrade to your community park that you want to lobby the local civic authorities for? This book can help you. The book is a bit wordy. I found that the length could have been reduced and the points still have gotten across. That’s really the only knock that I have though; the insight that it provides is so worthwhile that having to chew through extra words is well worth it. You definitely don’t have to be a professional salesperson to benefit from this book. Rating: 4/5

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• C# Dev Challenge Part 1 of n &ndash; Beginner Edition

  - by mbcrump

  I developed this challenge to test one’s knowledge of C Sharp. I am planning on creating several challenges with different skill sets, so don’t get mad if this challenge doesn’t well challenge you... I noticed that most people like short quizzes so this one only contains 5 questions. All of the challenges are clear and concise of what I am asking you to do. No smoke and mirrors here, meaning that none of the code has syntax errors. The purpose of this exercise is to test several OOP concepts and see how much of the C# language you really know. Question #1 – Lets start off Easy… Will the following code snippet compile successfully? What does this question test? - Can this compile without a namespace? Do you have to have an entry point of “static void Main()”? class Test { static int Main() { System.Console.WriteLine("Developer Challenge"); return 0; } } Answer (select text in box below): Yes, it will compile successfully. Question #2 – What is the value of the Console.WriteLine statements? What does this question test? – Do I understand reference types/value types? If a variable is declared with the @ symbol and its not a reserved keyword does the application compile successfully? using System; internal struct MyStruct { public int Value; } internal class MyClass { public int Value; } class Test { static void Main() { MyStruct @struct1 = new MyStruct(); MyStruct @struct2 = @struct1; @struct2.Value = 100; MyClass @ref1 = new MyClass(); MyClass @ref2 = @ref1; @ref2.Value = 100; Console.WriteLine("Value Type: {0} {1}", @struct1.Value, @struct2.Value); Console.WriteLine("Reference Type: {0} {1}", @ref1.Value, @ref2.Value); } } Answer (select text in box below): Value Type: 0 100 Reference Type: 100 100 Question #3 – What is the value of the Console.WriteLine statements? What does this question test? – Can 2 objects reference the same point in memory? using System; class Test { static void Main() { string s1 = "Testing2"; string t1 = s1; Console.WriteLine(s1 == t1); Console.WriteLine((object)s1 == (object)t1); } } Answer (select text in box below): True True Question #4 – What is the value of the Console.WriteLine statements? What does this question test? – How does the “Stack” work – LIFO or FIFO?   using System; using System.Collections; class Test { static void Main() { Stack a = new Stack(5); a.Push("1"); a.Push("2"); a.Push("3"); a.Push("4"); a.Push("5"); foreach (var o in a) { Console.WriteLine(o); } } } Answer (select text in box below): 5 4 3 2 1 Question #5 – What is the value of the Console.WriteLine statements? What does this question test? – Array and General Looping Knowledge. using System; namespace ConsoleApplication5 { class Program { static void Main(string[] args) { int[] J_LIST = new int[5] { 1, 2, 3, 4, 5 }; int K = 10; int L = 5; foreach (var J in J_LIST) { K = K - J; L = K + 2 * J; Console.WriteLine("J = {0, 5} K = {1, 5} L = {2, 5}", J, K, L); } Console.ReadLine(); } } } Answer (select text in box below): J = 1 K = 9 L = 11 J = 2 K = 7 L = 11 J = 3 K = 4 L = 10 J = 4 K = 0 L = 8 J = 5 K = -5 L = 5 Stay Tuned for more challenges!

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• php script google maps points from mysql (google example)

  - by user1637477

  I have recently added style information to my maps script, and it stopped working. Have I done something wrong? Guess you can tell I'm very new to this. Any help appreciated. <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"><head> <meta http-equiv="content-type" content="text/html; charset=utf-8"><title>Google Maps AJAX + mySQL/PHP Example</title> <script src="http://maps.google.com/maps/api/js?sensor=false" type="text/javascript"></script> <script type="text/javascript"> //<![CDATA[ ( *******************I INSERTED HERE ) var styles = [ { stylers: [ { hue: "#00ffe6" }, { saturation: -20 } ] },{ featureType: "road", elementType: "geometry", stylers: [ { lightness: 100 }, { visibility: "simplified" } ] },{ featureType: "road", elementType: "labels", stylers: [ { visibility: "off" } ] } ];**( ******************************** THROUGH TO HERE ) map.setOptions({styles: styles}); var customIcons = { restaurant: { icon: 'http://labs.google.com/ridefinder/images/mm_20_blue.png', shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png' }, bar: { icon: 'http://labs.google.com/ridefinder/images/mm_20_red.png', shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png' } }; function load() { var map = new google.maps.Map(document.getElementById("map"), { center: new google.maps.LatLng(-37.7735, 175.1418), zoom: 10, mapTypeId: 'roadmap' }); var infoWindow = new google.maps.InfoWindow; // Change this depending on the name of your PHP fileBHBHBHBHBHBHBHBBBBBBBBBBBBBBBBBBBBBBBBBBB downloadUrl("mywebsite-no i did this just a minute ago", function(data) { var xml = data.responseXML; var markers = xml.documentElement.getElementsByTagName("marker"); for (var i = 0; i < markers.length; i++) { var name = markers[i].getAttribute("name"); var address = markers[i].getAttribute("address"); var type = markers[i].getAttribute("type"); var point = new google.maps.LatLng( parseFloat(markers[i].getAttribute("lat")), parseFloat(markers[i].getAttribute("lng"))); var html = "<b>" + name + "</b> <br/>" + address; var icon = customIcons[type] || {}; var marker = new google.maps.Marker({ map: map, position: point, icon: icon.icon, shadow: icon.shadow }); bindInfoWindow(marker, map, infoWindow, html); } }); } function bindInfoWindow(marker, map, infoWindow, html) { google.maps.event.addListener(marker, 'click', function() { infoWindow.setContent(html); infoWindow.open(map, marker); }); } function downloadUrl(url, callback) { var request = window.ActiveXObject ? new ActiveXObject('Microsoft.XMLHTTP') : new XMLHttpRequest; request.onreadystatechange = function() { if (request.readyState == 4) { request.onreadystatechange = doNothing; callback(request, request.status); } }; request.open('GET', url, true); request.send(null); } function doNothing() {} //]]> </script><!--Adobe Edge Runtime--> <script type="text/javascript" charset="utf-8" src="map500x1000_edgePreload.js"></script> <style> .edgeLoad-EDGE-12956064 { visibility:hidden; } </style> <!--Adobe Edge Runtime End--> </head> <body onload="load()"> <div id="map" style="width: 1000px; height: 1000px;" class="edgeLoad-EDGE-12956064"></div> </body></html>

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• Simple Navigation In Windows Phone 7

  - by PeterTweed

  Take the Slalom Challenge at www.slalomchallenge.com! When moving to the mobile platform all applications need to be able to provide different views.  Navigating around views in Windows Phone 7 is a very easy thing to do.  This post will introduce you to the simplest technique for navigation in Windows Phone 7 apps. Steps: 1.     Create a new Windows Phone Application project. 2.     In the MainPage.xaml file copy the following xaml into the ContentGrid Grid:             <StackPanel Orientation="Vertical" VerticalAlignment="Center"  >                 <TextBox Name="ValueTextBox" Width="200" ></TextBox>                 <Button Width="200" Height="30" Content="Next Page" Click="Button_Click"></Button>             </StackPanel> This gives a text box for the user to enter text and a button to navigate to the next page. 3.     Copy the following event handler code to the MainPage.xaml.cs file:         private void Button_Click(object sender, RoutedEventArgs e)         {             NavigationService.Navigate(new Uri( string.Format("/SecondPage.xaml?val={0}", ValueTextBox.Text), UriKind.Relative));         }   The event handler uses the NavigationService.Navigate() function.  This is what makes the navigation to another page happen.  The function takes a Uri parameter with the name of the page to navigate to and the indication that it is a relative Uri to the current page.  Note also the querystring is formatted with the value entered in the ValueTextBox control – in a similar manner to a standard web querystring. 4.     Add a new Windows Phone Portrait Page to the project named SecondPage.xaml. 5.     Paste the following XAML in the ContentGrid Grid in SecondPage.xaml:             <Button Name="GoBackButton" Width="200" Height="30" Content="Go Back" Click="Button_Click"></Button>   This provides a button to navigate back to the first page. 6.     Copy the following event handler code to the SecondPage.xaml.cs file:         private void Button_Click(object sender, RoutedEventArgs e)         {             NavigationService.GoBack();         } This tells the application to go back to the previously displayed page. 7.     Add the following code to the constructor in SecondPage.xaml.cs:             this.Loaded += new RoutedEventHandler(SecondPage_Loaded); 8.     Add the following loaded event handler to the SecondPage.xaml.cs file:         void SecondPage_Loaded(object sender, RoutedEventArgs e)         {             if (NavigationContext.QueryString["val"].Length > 0)                 MessageBox.Show(NavigationContext.QueryString["val"], "Data Passed", MessageBoxButton.OK);             else                 MessageBox.Show("{Empty}!", "Data Passed", MessageBoxButton.OK);         }   This code pops up a message box displaying either the text entered on the first page or the message “{Empty}!” if no text was entered. 9.     Run the application, enter some text in the text box and click on the next page button to see the application in action:   Congratulations!  You have created a new Windows Phone 7 application with page navigation.

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• Javascript Inheritance Part 2

  - by PhubarBaz

  A while back I wrote about Javascript inheritance, trying to figure out the best and easiest way to do it (http://geekswithblogs.net/PhubarBaz/archive/2010/07/08/javascript-inheritance.aspx). That was 2 years ago and I've learned a lot since then. But only recently have I decided to just leave classical inheritance behind and embrace prototypal inheritance. For most of us, we were trained in classical inheritance, using class hierarchies in a typed language. Unfortunately Javascript doesn't follow that model. It is both classless and typeless, which is hard to fathom for someone who's been using classes the last 20 years. For the last two or three years since I've got into Javascript I've been trying to find the best way to force it into the class model without much success. It's clunky and verbose and hard to understand. I think my biggest problem was that it felt so wrong to add or change object members at run time. Every time I did it I felt like I needed a shower. That's the 20 years of classical inheritance in me. Finally I decided to embrace change and do something different. I decided to use the factory pattern to build objects instead of trying to use inheritance. Javascript was made for the factory pattern because of the way you can construct objects at runtime. In the factory pattern you have a factory function that you call and tell it to give you a certain type of object back. The factory function takes care of constructing the object to your specification. Here's an example. Say we want to have some shape objects and they have common attributes like id and area that we want to depend on in other parts of your application. So first thing to do is create a factory object and give it a factory method to create an abstract shape object. The factory method builds the object then returns it. var shapeFactory = { getShape: function(id){ var shape = { id: id, area: function() { throw "Not implemented"; } }; return shape; }}; Now we can add another factory method to get a rectangle. It calls the getShape() method first and then adds an implementation to it. getRectangle: function(id, width, height){ var rect = this.getShape(id); rect.width = width; rect.height = height; rect.area = function() { return this.width * this.height; }; return rect;} That's pretty simple right? No worrying about hooking up prototypes and calling base constructors or any of that crap I used to do. Now let's create a factory method to get a cuboid (rectangular cube). The cuboid object will extend the rectangle object. To get the area we will call into the base object's area method and then multiply that by the depth. getCuboid: function(id, width, height, depth){ var cuboid = this.getRectangle(id, width, height); cuboid.depth = depth; var baseArea = cuboid.area; cuboid.area = function() { var a = baseArea.call(this); return a * this.depth; } return cuboid;} See how we called the area method in the base object? First we save it off in a variable then we implement our own area method and use call() to call the base function. For me this is a lot cleaner and easier than trying to emulate class hierarchies in Javascript.

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• I need help with 2D collision response (of stacking rotating polygons, with friction and gravity, for a game)

  - by Register Sole

  Hi I am looking for suggestions on how to write a collision response for game programming purpose (so not a scientific simulation). I am dealing with 2D polygons that are rotating, and I want them to be able to stack. I also want friction and gravity. I have a detection mechanism that returns the separating axis, how long the polygons are overlapping, and up to 2 points of contact. For the response, I am currently using an impulse-based response, which main idea is: find the separating axis, length of overlap, and the point of contact (if there are two, pick a random point between to simulate averaged force. i believe there are better ways than this) separate the object (modifying their positions, taking into account of their masses. i do not separate them completely though, to keep track that they are colliding to reduce jitter) calculate normal force based on the coefficient of restitution as if there is no friction. calculate friction, as if there is no normal force. I also assume that the direction of the friction is the same throughout the collision. apply the two forces (which result in a rather inaccurate result, since each force is calculated as if the other is not present. for non-rotating bodies though, this method is exact) I am aware that this method requires the coefficient of friction to be sufficiently small due to the assumption that the direction of friction stays the same in a collision. Also, the result is visually satisfying if gravity is not present. However, when there is gravity, objects on ground jitter and drift (even with zero coefficient of restitution)! It also happens for stacking objects. Larger coefficient of restitution and gravity increase the jittering. I hope you can help me with this. Some things i would like to know more about is how to handle collision with two point of contacts (how to end up having an object sitting still on the ground?), how to reduce, and prevent if possible, jitter and drift (do people use the most accurate method possible, or is there a trick to overcome this?), and how to handle multiple objects collision (for example, in the case of stacking objects, how do I check collisions between all of them and keep them all stable at every frame so they don't jitter?). A total reformulation of my algorithm is also welcomed, as long as it works. Another thing to note is that I am not making a Physics game, so I only need a visually satisfying response (though a realistic response is preferable, if it is not performance-heavy). But surely jittering and drifting objects on flat ground are not at all acceptable. In addition, I am a Physics student, so feel free to talk about impulse and whatever needed. Finally, I'm sorry for the long post. I tried to be as concise as I can. Thank you for reading it! EDIT It seems what I didn't manage to come up all this time is to separate resting contact as a class of its own and how to solve them. Currently reading the paper suggested by Jedediah. More suggestions on the topic are welcome :) CASE CLOSED After reading various papers referenced in the paper, successfully implemented simultaneous impulse method (referring to the original paper by Erin Catto, [Catt05]). Thanks maaaan!! The paper is wonderful. The current system is visibly much better than the previous. Still haven't separated resting contact as a class of its own though, which brings me to my next question. Love you all! Haha (sorry, I'm just so happy thanks to you).

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• i want to access mysql database table on given conditions in drop down menu [on hold]

  - by user3909877

  as the code below is accesing the database table directly but i want it to display the table content on giving conditions in drop down menu like when i select islamabad in one drop down menu and lahore in other as given in code and press search buttonn then it display the table flights.but it is displaying it directly <p class="h2">Quick Search</p> <div class="sb2_opts"> <p> </p> <form method="post" action=""> <p>Enter your source and destination.</p> <p> From:</p> <select name="from"> <option value="Islamabad">Islamabad</option> <option value="Lahore">Lahore</option> <option value="murree">Murree</option> <option value="Muzaffarabad">Muzaffarabad</option> </select> <p> To:</p> <select name="To"> <option value="Islamabad">Islamabad</option> <option value="Lahore">Lahore</option> <option value="murree">Murree</option> <option value="Muzaffarabad">Muzaffarabad</option> </select> <input type="submit" value="search" /> </form> </form> </table> <?php $from = isset($_POST['from'])?$_POST['from']:''; $to = isset($_POST['to'])?$_POST['to']:''; if( $from =='Islamabad'){ if($to == 'Lahore'){ $db_host = 'localhost'; $db_user = 'root'; $database = 'homedb'; $table = 'flights'; if (!mysql_connect($db_host, $db_user)) die("Can't connect to database"); if (!mysql_select_db($database)) die("Can't select database"); $result = mysql_query("SELECT * FROM {$table}"); if (!$result) { die("Query to show fields from table failed"); } $result = mysql_query("SELECT * FROM {$table}"); if (!$result) { die("Query to show fields from table failed"); } $fields_num = mysql_num_fields($result); echo "<h1>Table: {$table}</h1>"; echo "<table border='1'><tr>"; while($row = mysql_fetch_row($result)) { echo "<tr>"; // $row is array... foreach( .. ) puts every element // of $row to $cell variable foreach($row as $cell) echo "<td>$cell</td>"; echo "</tr>\n"; } } } mysqli_close($con); ?>

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• android client not working [migrated]

  - by Syeda Zunairah

  i have a java client and c# server the server code is static Socket listeningSocket; static Socket socket; static Thread thrReadRequest; static int iPort = 4444; static int iConnectionQueue = 100; static void Main(string[] args) { Console.WriteLine(IPAddress.Parse(getLocalIPAddress()).ToString()); try { listeningSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); //listeningSocket.Bind(new IPEndPoint(0, iPort)); listeningSocket.Bind(new IPEndPoint(IPAddress.Parse(getLocalIPAddress()), iPort)); listeningSocket.Listen(iConnectionQueue); thrReadRequest = new Thread(new ThreadStart(getRequest)); thrReadRequest.Start(); } catch (Exception e) { Console.WriteLine("Winsock error: " + e.ToString()); //throw; } } static private void getRequest() { int i = 0; while (true) { i++; Console.WriteLine("Outside Try i = {0}", i.ToString()); try { socket = listeningSocket.Accept(); // Receiving //byte[] rcvLenBytes = new byte[4]; //socket.Receive(rcvLenBytes); //int rcvLen = System.BitConverter.ToInt32(rcvLenBytes, 0); //byte[] rcvBytes = new byte[rcvLen]; //socket.Receive(rcvBytes); //String formattedBuffer = System.Text.Encoding.ASCII.GetString(rcvBytes); byte[] buffer = new byte[socket.SendBufferSize]; int iBufferLength = socket.Receive(buffer, 0, buffer.Length, 0); Console.WriteLine("Received {0}", iBufferLength); Array.Resize(ref buffer, iBufferLength); string formattedBuffer = Encoding.ASCII.GetString(buffer); Console.WriteLine("Data received by Client: {0}", formattedBuffer); if (formattedBuffer == "quit") { socket.Close(); listeningSocket.Close(); Environment.Exit(0); } Console.WriteLine("Inside Try i = {0}", i.ToString()); Thread.Sleep(500); } catch (Exception e) { //socket.Close(); Console.WriteLine("Receiving error: " + e.ToString()); Console.ReadKey(); //throw; } finally { socket.Close(); //listeningsocket.close(); } } } static private string getLocalIPAddress() { IPHostEntry host; string localIP = ""; host = Dns.GetHostEntry(Dns.GetHostName()); foreach (IPAddress ip in host.AddressList) { if (ip.AddressFamily == AddressFamily.InterNetwork) { localIP = ip.ToString(); break; } } return localIP; } } and the jave android code is private TCPClient mTcpClient; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); final EditText editText = (EditText) findViewById(R.id.edit_message); Button send = (Button)findViewById(R.id.sendbutton); // connect to the server new connectTask().execute(""); send.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { String message = editText.getText().toString(); //sends the message to the server if (mTcpClient != null) { mTcpClient.sendMessage(message); } editText.setText(""); } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return true; } public class connectTask extends AsyncTask<String,String,TCPClient> { @Override protected TCPClient doInBackground(String... message) { mTcpClient = new TCPClient(new TCPClient.OnMessageReceived() { @Override public void messageReceived(String message) { publishProgress(message); } }); mTcpClient.run(); return null; } @Override protected void onProgressUpdate(String... values) { super.onProgressUpdate(values); } } } when i run the server it gives output of try i=1. can any one tell me what to do next

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• ?SPARC T4?????????????·???? : Netra SPARC T4-1

  - by user13138700

  ?SPARC T4???????????????·??????? Netra SPARC T4-1 ???? Netra SPARC T4-2 ?2012?1?10??????????3?15??????????????(????) ?????????? Netra SPARC T4-1 ? 4core ???( T4 ???????? 4core ???)(*)???????????????????????????(*)( Netra SPARC T4-1 ?????? 4core ???? 8core ????????) ??? prtdiag ????? pginfo ??????????????? 8????/1core ???? prtdiag ????????4core=32???????????????pginfo ?????????????????core ???????????????????? # ./prtdiag -v System Configuration: Oracle Corporation sun4v Netra SPARC T4-1 ???????: 130560 M ??? ================================ ?? CPU ================================ CPU ID Frequency Implementation Status ------ --------- ---------------------- ------- 0 2848 MHz SPARC-T4 on-line 1 2848 MHz SPARC-T4 on-line 2 2848 MHz SPARC-T4 on-line 3 2848 MHz SPARC-T4 on-line 4 2848 MHz SPARC-T4 on-line 5 2848 MHz SPARC-T4 on-line 6 2848 MHz SPARC-T4 on-line 7 2848 MHz SPARC-T4 on-line 8 2848 MHz SPARC-T4 on-line 9 2848 MHz SPARC-T4 on-line 10 2848 MHz SPARC-T4 on-line 11 2848 MHz SPARC-T4 on-line 12 2848 MHz SPARC-T4 on-line 13 2848 MHz SPARC-T4 on-line 14 2848 MHz SPARC-T4 on-line 15 2848 MHz SPARC-T4 on-line 16 2848 MHz SPARC-T4 on-line 17 2848 MHz SPARC-T4 on-line 18 2848 MHz SPARC-T4 on-line 19 2848 MHz SPARC-T4 on-line 20 2848 MHz SPARC-T4 on-line 21 2848 MHz SPARC-T4 on-line 22 2848 MHz SPARC-T4 on-line 23 2848 MHz SPARC-T4 on-line 24 2848 MHz SPARC-T4 on-line 25 2848 MHz SPARC-T4 on-line 26 2848 MHz SPARC-T4 on-line 27 2848 MHz SPARC-T4 on-line 28 2848 MHz SPARC-T4 on-line 29 2848 MHz SPARC-T4 on-line 30 2848 MHz SPARC-T4 on-line 31 2848 MHz SPARC-T4 on-line ======================= Physical Memory Configuration ======================== ???? # pginfo -p -T 0 (System [system,chip]) CPUs: 0-31 `-- 3 (Data_Pipe_to_memory [system,chip]) CPUs: 0-31 |-- 2 (Floating_Point_Unit [core]) CPUs: 0-7 | `-- 1 (Integer_Pipeline [core]) CPUs: 0-7 |-- 5 (Floating_Point_Unit [core]) CPUs: 8-15 | `-- 4 (Integer_Pipeline [core]) CPUs: 8-15 |-- 7 (Floating_Point_Unit [core]) CPUs: 16-23 | `-- 6 (Integer_Pipeline [core]) CPUs: 16-23 `-- 9 (Floating_Point_Unit [core]) CPUs: 24-31 `-- 8 (Integer_Pipeline [core]) CPUs: 24-31 T4 ????????????????????????????????????????????????? T3 ?????(S2 core)?????T4 ?????(S3 core)?????????????5???????????? T3 ?????(S2 core)?????????????????????????(????????)?????????????????????????????????????????????·???????????????????????????????????????? ????T4 ????????????????????????????T4 ??????????·??????? Netra SPARC T4-1 4core ????????????????????????????????????T3 ???????????????????????????? ?????????Netra SPARC T4-1 ??????????????? Netra SPARC T4-1 ?? Computing 1 x SPARC T4 4?? 32???? or 8 ?? 64 ???? 2.85GHz CPU (1?????8????) 16 x DDR3 DIMM (?? 256GB ?????16GB DIMM ???) I/O and Storage 3 x Low Profile PCI-Express Gen2 ???? (2 x 10Gb Ethernet XAUI ???????) 2 x Full-height Half-length PCI-Express Gen2 ???? 4 x 10/100/1000 Ethernet ???????? 4 x 2.5” SAS2 HDD 4 x USB ??? (?? 2, ?? 2) RAS and Management and Power Supply ???? (RAID????), ????PSU ?????????? ILOM?????????????? 2N (1+1) , AC ???? DC ?? Support OS Oracle Solaris 10 10/9, 9/10, 8/11, Oracle Solaris 11 11/11 Oracle VM Server for SPARC 2.1 (LDoms) ???? ??? NEBS Level3?? ??????21” 19”(EIA-310D),23”,24”,600mm????? ?????(?????)????????? ????SPARC T4 ????????SPARC T4 ?????????????????????????(4???)???????????? Oracle OpenWorld Tokyo 2012 ?3??(4/4(?)?4/5(?)?4/6(?))?????????????????????&?????????????????SPARC T4 ?????????????????????????????????·?????????????????SPARC T4 ???????????????????!? Oracle OpenWorld Tokyo 2012 http://www.oracle.com/openworld/jp-ja/index.html ????·???????????? 4/6(?) Develop D3-13 (14:00 - 14:45) ???????????49 ??? ?????? 7264 ???????????????

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• Web site not responding

  - by Subhransu

  I have website working fine before. But now its not able to connect to the server(I believe that is the problem). But its strange that the message not able to connect to the server is not coming and its keep connecting... for infinite time. Here is the screenshot. Here are some of the useful details about the status of the server. Application starts when server wakes up are: cd /etc/init.d/ Application server running in my server : Traceroute: UPDATE: ps aux USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1 0.0 0.0 19204 744 ? Ss Aug07 0:01 /sbin/init root 2 0.0 0.0 0 0 ? S Aug07 0:00 [kthreadd] root 3 0.0 0.0 0 0 ? S Aug07 0:00 [migration/0] root 4 0.0 0.0 0 0 ? S Aug07 7:15 [ksoftirqd/0] root 5 0.0 0.0 0 0 ? S Aug07 0:00 [migration/0] root 6 0.0 0.0 0 0 ? S Aug07 0:00 [watchdog/0] root 7 0.0 0.0 0 0 ? S Aug07 0:05 [events/0] root 8 0.0 0.0 0 0 ? S Aug07 0:00 [cpuset] root 9 0.0 0.0 0 0 ? S Aug07 0:00 [khelper] root 10 0.0 0.0 0 0 ? S Aug07 0:00 [netns] root 11 0.0 0.0 0 0 ? S Aug07 0:00 [async/mgr] root 12 0.0 0.0 0 0 ? S Aug07 0:00 [pm] root 13 0.0 0.0 0 0 ? S Aug07 0:00 [sync_supers] root 14 0.0 0.0 0 0 ? S Aug07 0:00 [bdi-default] root 15 0.0 0.0 0 0 ? S Aug07 0:00 [kintegrityd/0] root 16 0.0 0.0 0 0 ? S Aug07 0:24 [kblockd/0] root 17 0.0 0.0 0 0 ? S Aug07 0:00 [kacpid] root 18 0.0 0.0 0 0 ? S Aug07 0:00 [kacpi_notify] root 19 0.0 0.0 0 0 ? S Aug07 0:00 [kacpi_hotplug] root 20 0.0 0.0 0 0 ? S Aug07 0:00 [ata/0] root 21 0.0 0.0 0 0 ? S Aug07 0:00 [ata_aux] root 22 0.0 0.0 0 0 ? S Aug07 0:00 [ksuspend_usbd] root 23 0.0 0.0 0 0 ? S Aug07 0:00 [khubd] root 24 0.0 0.0 0 0 ? S Aug07 0:00 [kseriod] root 25 0.0 0.0 0 0 ? S Aug07 0:00 [md/0] root 26 0.0 0.0 0 0 ? S Aug07 0:00 [md_misc/0] root 27 0.0 0.0 0 0 ? S Aug07 0:00 [khungtaskd] root 28 0.0 0.0 0 0 ? S Aug07 0:19 [kswapd0] root 29 0.0 0.0 0 0 ? SN Aug07 0:00 [ksmd] root 30 0.0 0.0 0 0 ? SN Aug07 1:36 [khugepaged] root 31 0.0 0.0 0 0 ? S Aug07 0:00 [aio/0] root 32 0.0 0.0 0 0 ? S Aug07 0:00 [crypto/0] root 37 0.0 0.0 0 0 ? S Aug07 0:00 [kthrotld/0] root 38 0.0 0.0 0 0 ? S Aug07 0:00 [pciehpd] root 40 0.0 0.0 0 0 ? S Aug07 0:00 [kpsmoused] root 41 0.0 0.0 0 0 ? S Aug07 0:00 [usbhid_resumer] root 71 0.0 0.0 0 0 ? S Aug07 0:00 [kstriped] root 203 0.0 0.0 0 0 ? S Aug07 0:00 [scsi_eh_0] root 206 0.0 0.0 0 0 ? S Aug07 0:00 [scsi_eh_1] root 213 0.0 0.0 0 0 ? S Aug07 0:00 [mpt_poll_0] root 214 0.0 0.0 0 0 ? S Aug07 0:00 [mpt/0] root 215 0.0 0.0 0 0 ? S Aug07 0:00 [scsi_eh_2] root 317 0.0 0.0 0 0 ? S Aug07 0:00 [kdmflush] root 319 0.0 0.0 0 0 ? S Aug07 0:00 [kdmflush] root 338 0.0 0.0 0 0 ? S Aug07 4:30 [jbd2/dm-0-8] root 339 0.0 0.0 0 0 ? S Aug07 0:00 [ext4-dio-unwrit] root 411 0.0 0.0 11060 224 ? S<s Aug07 0:00 /sbin/udevd -d root 591 0.0 0.0 0 0 ? S Aug07 0:00 [vmmemctl] root 732 0.0 0.0 0 0 ? S Aug07 0:00 [jbd2/sda1-8] root 733 0.0 0.0 0 0 ? S Aug07 0:00 [ext4-dio-unwrit] root 770 0.0 0.0 0 0 ? S Aug07 0:00 [kauditd] root 907 0.0 0.0 0 0 ? S Aug07 0:02 [flush-253:0] root 963 0.0 0.0 93180 528 ? S<sl Aug07 0:00 auditd root 979 0.0 0.0 248680 1132 ? Sl Aug07 0:04 /sbin/rsyslogd -i /var/run/syslogd.pid -c 4 dbus 991 0.0 0.0 31740 348 ? Ssl Aug07 0:00 dbus-daemon --system root 1023 0.0 0.0 64032 456 ? Ss Aug07 0:01 /usr/sbin/sshd root 1031 0.0 0.0 22076 592 ? Ss Aug07 0:00 xinetd -stayalive -pidfile /var/run/xinetd.pid root 1107 0.0 0.0 78652 744 ? Ss Aug07 0:01 /usr/libexec/postfix/master postfix 1116 0.0 0.0 78904 852 ? S Aug07 0:00 qmgr -l -t fifo -u qpidd 1129 0.0 0.0 234596 1488 ? Ssl Aug07 1:54 /usr/sbin/qpidd --data-dir /var/lib/qpidd --daemon root 1181 0.0 0.0 117176 532 ? Ss Aug07 0:04 crond root 1217 0.0 0.0 108152 412 ? S Aug07 0:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --socket=/var/lib/mysql/m mysql 1306 0.0 1.8 792636 72640 ? Sl Aug07 6:51 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --log- root 1334 0.0 0.1 739156 5520 ? Ssl Aug07 0:34 /usr/sbin/shibd -p /var/run/shibboleth/shibd.pid -f -w 30 root 1355 0.0 0.0 4048 272 tty2 Ss+ Aug07 0:00 /sbin/mingetty /dev/tty2 root 1357 0.0 0.0 4048 272 tty3 Ss+ Aug07 0:00 /sbin/mingetty /dev/tty3 root 1360 0.0 0.0 12336 264 ? S< Aug07 0:00 /sbin/udevd -d root 1361 0.0 0.0 12336 240 ? S< Aug07 0:00 /sbin/udevd -d root 1362 0.0 0.0 4048 272 tty4 Ss+ Aug07 0:00 /sbin/mingetty /dev/tty4 root 1364 0.0 0.0 4048 272 tty5 Ss+ Aug07 0:00 /sbin/mingetty /dev/tty5 root 1366 0.0 0.0 4048 272 tty6 Ss+ Aug07 0:00 /sbin/mingetty /dev/tty6 root 1394 0.0 0.0 574892 436 ? Sl Aug07 0:00 /usr/sbin/console-kit-daemon --no-daemon root 1495 0.0 0.0 4048 264 tty1 Ss+ Aug07 0:00 /sbin/mingetty /dev/tty1 root 7665 0.0 0.1 296304 6244 ? Ss Aug16 2:33 /usr/sbin/httpd apache 10298 0.0 0.2 457756 10472 ? Sl Sep07 3:35 /usr/sbin/httpd apache 11684 0.0 0.5 465352 20708 ? Sl Sep12 0:02 /usr/sbin/httpd apache 14570 0.0 0.7 475592 30628 ? Sl Sep12 0:02 /usr/sbin/httpd apache 14877 0.0 0.5 467868 22696 ? Sl Sep12 0:01 /usr/sbin/httpd apache 15128 0.0 0.4 464628 19096 ? Sl Sep12 0:01 /usr/sbin/httpd apache 15151 0.0 0.4 464624 18980 ? Sl Sep12 0:01 /usr/sbin/httpd apache 15169 0.0 0.6 470268 24636 ? Sl Sep12 0:01 /usr/sbin/httpd apache 15238 0.0 0.4 464628 19108 ? Sl Sep12 0:01 /usr/sbin/httpd apache 15266 0.0 0.4 464624 18920 ? Sl Sep12 0:02 /usr/sbin/httpd apache 15312 0.0 0.4 464624 18724 ? Sl Sep12 0:01 /usr/sbin/httpd apache 15427 0.0 0.6 470268 24644 ? Sl Sep12 0:00 /usr/sbin/httpd apache 15814 0.0 0.4 464884 19296 ? Sl 00:14 0:01 /usr/sbin/httpd apache 15830 0.0 0.4 464628 19028 ? Sl 00:24 0:00 /usr/sbin/httpd apache 15859 0.0 0.7 475524 30320 ? Sl 00:31 0:00 /usr/sbin/httpd apache 15897 0.0 0.6 471876 26056 ? Sl 00:42 0:00 /usr/sbin/httpd apache 15926 0.0 0.4 464884 18936 ? Sl 00:46 0:01 /usr/sbin/httpd apache 15970 0.0 0.6 470268 24216 ? Sl 00:57 0:00 /usr/sbin/httpd apache 16010 0.0 0.4 464884 18912 ? Sl 01:04 0:00 /usr/sbin/httpd apache 16023 0.0 0.3 457756 12300 ? Sl 01:05 0:02 /usr/sbin/httpd apache 16176 0.0 0.4 464624 18568 ? Sl 02:01 0:01 /usr/sbin/httpd apache 16213 0.0 0.4 464624 18900 ? Sl 02:22 0:01 /usr/sbin/httpd apache 16240 0.0 0.4 464884 18828 ? Sl 02:35 0:00 /usr/sbin/httpd root 16313 0.0 0.0 19372 968 ? Ss 03:01 0:00 /usr/sbin/anacron -s apache 16361 0.0 0.4 464624 18572 ? Sl 03:17 0:00 /usr/sbin/httpd apache 16364 0.0 0.4 464884 19284 ? Sl 03:19 0:01 /usr/sbin/httpd root 16421 0.0 0.0 9180 1300 ? SN 03:37 0:00 /bin/bash /usr/bin/run-parts /etc/cron.daily root 16426 0.0 0.0 9312 1404 ? SN 03:37 0:00 /bin/bash /etc/cron.daily/backupdb root 16427 0.0 0.0 9064 820 ? SN 03:37 0:00 awk -v progname /etc/cron.daily/backupdb progname {????? print progname ":\n" root 16434 0.0 0.0 50776 2420 ? SN 03:37 0:00 mysqldump --opt --quote-names -u root -px xxx inamiriziv_dokeos_user personal_a root 16435 0.0 0.0 4280 536 ? SN 03:37 0:00 gzip --rsyncable apache 16484 0.0 0.2 457584 11432 ? Sl 03:55 0:04 /usr/sbin/httpd apache 16492 0.0 0.4 464884 19320 ? Sl 03:58 0:02 /usr/sbin/httpd apache 16496 0.0 0.4 464624 18704 ? Sl 04:00 0:02 /usr/sbin/httpd apache 16529 0.0 0.6 470268 24608 ? Sl 04:06 0:02 /usr/sbin/httpd apache 16533 0.0 0.4 464624 18532 ? Sl 04:10 0:00 /usr/sbin/httpd apache 16536 0.0 0.4 464884 18908 ? Sl 04:10 0:00 /usr/sbin/httpd apache 16556 0.0 0.4 464884 18924 ? Sl 04:18 0:02 /usr/sbin/httpd apache 16563 0.0 0.3 457756 12384 ? Sl 04:19 0:07 /usr/sbin/httpd apache 16598 0.0 0.3 457756 12344 ? Sl 04:28 0:02 /usr/sbin/httpd apache 16633 0.0 0.4 464624 18492 ? Sl 04:41 0:00 /usr/sbin/httpd apache 16637 0.0 0.6 470268 24300 ? Sl 04:41 0:02 /usr/sbin/httpd apache 16654 0.0 0.3 457756 12296 ? Sl 04:47 0:02 /usr/sbin/httpd apache 16665 0.0 0.6 470268 24308 ? Sl 04:50 0:03 /usr/sbin/httpd apache 16738 0.0 0.6 470268 24312 ? Sl 05:10 0:02 /usr/sbin/httpd apache 17388 0.0 0.2 457584 11440 ? Sl 08:56 0:01 /usr/sbin/httpd apache 17391 0.0 0.3 457756 12296 ? Sl 08:57 0:00 /usr/sbin/httpd apache 17397 0.0 0.3 457756 12312 ? Sl 08:59 0:00 /usr/sbin/httpd apache 17401 0.0 0.3 457756 12284 ? Sl 09:00 0:00 /usr/sbin/httpd apache 17420 0.0 0.2 457584 11436 ? Sl 09:04 0:01 /usr/sbin/httpd apache 17426 0.0 0.3 457756 12324 ? Sl 09:07 0:01 /usr/sbin/httpd apache 17431 0.0 0.3 457756 12276 ? Sl 09:08 0:03 /usr/sbin/httpd apache 17434 0.0 0.3 457756 12308 ? Sl 09:08 0:00 /usr/sbin/httpd apache 17437 0.0 0.2 457584 11440 ? Sl 09:09 0:01 /usr/sbin/httpd apache 17442 0.0 0.2 457584 11436 ? Sl 09:10 0:01 /usr/sbin/httpd apache 17445 0.0 0.3 457756 12328 ? Sl 09:11 0:01 /usr/sbin/httpd apache 17449 0.0 0.3 457756 12292 ? Sl 09:12 0:01 /usr/sbin/httpd apache 17454 0.0 0.2 457584 11444 ? Sl 09:15 0:01 /usr/sbin/httpd apache 17457 0.0 0.2 457584 11436 ? Sl 09:15 0:01 /usr/sbin/httpd apache 17461 0.0 0.3 457756 12304 ? Sl 09:16 0:01 /usr/sbin/httpd apache 17465 0.0 0.2 457584 11444 ? Sl 09:18 0:01 /usr/sbin/httpd apache 17468 0.0 0.2 457584 11436 ? Sl 09:18 0:01 /usr/sbin/httpd apache 17473 0.0 0.4 464884 18940 ? Sl 09:19 0:00 /usr/sbin/httpd apache 17476 0.0 0.4 464628 18736 ? Sl 09:20 0:00 /usr/sbin/httpd apache 17479 0.0 0.2 457584 11440 ? Sl 09:20 0:01 /usr/sbin/httpd apache 17483 0.0 0.2 457584 11416 ? Sl 09:21 0:00 /usr/sbin/httpd apache 17486 0.0 0.3 457756 12296 ? Sl 09:21 0:01 /usr/sbin/httpd apache 17489 0.0 0.4 464884 18928 ? Sl 09:21 0:00 /usr/sbin/httpd apache 17492 0.0 0.2 457584 11260 ? Sl 09:22 0:00 /usr/sbin/httpd apache 17496 0.0 0.3 457756 12372 ? Sl 09:22 0:01 /usr/sbin/httpd apache 17500 0.0 0.2 457584 11428 ? Sl 09:23 0:00 /usr/sbin/httpd apache 17504 0.0 0.2 457584 11432 ? Sl 09:25 0:00 /usr/sbin/httpd apache 17509 0.0 0.3 457756 12336 ? Sl 09:27 0:01 /usr/sbin/httpd apache 17513 0.0 0.2 457584 11436 ? Sl 09:29 0:01 /usr/sbin/httpd apache 17517 0.0 0.2 457584 11448 ? Sl 09:31 0:00 /usr/sbin/httpd apache 17520 0.0 0.3 457584 12128 ? Sl 09:32 0:00 /usr/sbin/httpd apache 17525 0.0 0.4 464884 18960 ? Sl 09:34 0:00 /usr/sbin/httpd apache 17529 0.0 0.2 457584 11420 ? Sl 09:36 0:00 /usr/sbin/httpd apache 17533 0.0 0.2 457584 11436 ? Sl 09:38 0:00 /usr/sbin/httpd apache 17537 0.0 0.2 457584 11436 ? Sl 09:38 0:00 /usr/sbin/httpd apache 17542 0.0 0.4 464884 18840 ? Sl 09:40 0:00 /usr/sbin/httpd apache 17546 0.0 0.3 457756 12320 ? Sl 09:41 0:00 /usr/sbin/httpd apache 17550 0.0 0.2 457584 11440 ? Sl 09:42 0:00 /usr/sbin/httpd apache 17554 0.0 0.2 457584 11436 ? Sl 09:43 0:00 /usr/sbin/httpd apache 17557 0.0 0.2 457584 11436 ? Sl 09:44 0:00 /usr/sbin/httpd apache 17560 0.0 0.2 457584 11428 ? Sl 09:44 0:01 /usr/sbin/httpd apache 17568 0.0 0.4 464884 18824 ? Sl 09:48 0:00 /usr/sbin/httpd apache 17572 0.0 0.2 457584 11428 ? Sl 09:48 0:00 /usr/sbin/httpd apache 17575 0.0 0.2 457584 11428 ? Sl 09:48 0:01 /usr/sbin/httpd apache 17583 0.0 0.2 457584 11432 ? Sl 09:50 0:00 /usr/sbin/httpd apache 17586 0.0 0.3 457756 12264 ? Sl 09:50 0:00 /usr/sbin/httpd apache 17589 0.0 0.2 457584 11420 ? Sl 09:51 0:00 /usr/sbin/httpd apache 17597 0.0 0.2 457584 11420 ? Sl 09:53 0:02 /usr/sbin/httpd apache 17600 0.0 0.3 457756 12376 ? Sl 09:54 0:00 /usr/sbin/httpd apache 17604 0.0 0.2 457584 11436 ? Sl 09:55 0:00 /usr/sbin/httpd apache 17610 0.0 0.2 457584 11420 ? Sl 09:59 0:00 /usr/sbin/httpd apache 17615 0.0 0.2 457584 11424 ? Sl 10:00 0:00 /usr/sbin/httpd apache 17618 0.0 0.4 464884 19288 ? Sl 10:00 0:00 /usr/sbin/httpd apache 17635 0.0 0.2 457584 11416 ? Sl 10:01 0:00 /usr/sbin/httpd apache 17639 0.0 0.2 457584 11440 ? Sl 10:02 0:00 /usr/sbin/httpd apache 17643 0.0 0.2 457584 11448 ? Sl 10:03 0:00 /usr/sbin/httpd apache 17648 0.0 0.4 464884 18868 ? Sl 10:06 0:00 /usr/sbin/httpd apache 17651 0.0 0.2 457584 11416 ? Sl 10:07 0:00 /usr/sbin/httpd apache 17655 0.0 0.3 457756 12268 ? Sl 10:08 0:01 /usr/sbin/httpd apache 17658 0.0 0.2 457584 11440 ? Sl 10:08 0:00 /usr/sbin/httpd apache 17663 0.0 0.3 457756 12292 ? Sl 10:11 0:00 /usr/sbin/httpd apache 17666 0.0 0.2 457584 11432 ? Sl 10:11 0:00 /usr/sbin/httpd apache 17672 0.0 0.2 457584 11428 ? Sl 10:14 0:00 /usr/sbin/httpd apache 17676 0.0 0.2 457584 11424 ? Sl 10:16 0:00 /usr/sbin/httpd apache 17680 0.0 0.4 464884 18884 ? Sl 10:16 0:00 /usr/sbin/httpd apache 17683 0.0 0.2 457584 11420 ? Sl 10:19 0:00 /usr/sbin/httpd apache 17689 0.0 0.2 457584 11424 ? Sl 10:23 0:00 /usr/sbin/httpd apache 17692 0.0 0.2 457584 11428 ? Sl 10:23 0:00 /usr/sbin/httpd apache 17696 0.0 0.3 457584 11980 ? Sl 10:25 0:00 /usr/sbin/httpd apache 17699 0.0 0.2 457584 11436 ? Sl 10:25 0:00 /usr/sbin/httpd apache 17704 0.0 0.2 457584 11232 ? Sl 10:27 0:00 /usr/sbin/httpd apache 17711 0.0 0.2 457584 11412 ? Sl 10:30 0:01 /usr/sbin/httpd postfix 17714 0.0 0.0 78732 3216 ? S 10:30 0:00 pickup -l -t fifo -u apache 17715 0.0 0.2 457584 11436 ? Sl 10:30 0:00 /usr/sbin/httpd apache 17718 0.0 0.2 457584 11428 ? Sl 10:31 0:00 /usr/sbin/httpd apache 17726 0.0 0.2 457584 11420 ? Sl 10:36 0:00 /usr/sbin/httpd apache 17731 0.0 0.2 457584 11168 ? Sl 10:37 0:00 /usr/sbin/httpd apache 17734 0.0 0.4 464884 18796 ? Sl 10:37 0:00 /usr/sbin/httpd apache 17743 0.0 0.2 457584 11220 ? Sl 10:43 0:00 /usr/sbin/httpd apache 17746 0.0 0.2 457584 11172 ? Sl 10:44 0:00 /usr/sbin/httpd apache 17750 0.0 0.3 457756 12288 ? Sl 10:44 0:00 /usr/sbin/httpd apache 17753 0.0 0.2 457584 11220 ? Sl 10:45 0:00 /usr/sbin/httpd apache 17756 0.0 0.2 457584 11424 ? Sl 10:46 0:00 /usr/sbin/httpd apache 17763 0.0 0.3 457756 12204 ? Sl 10:51 0:00 /usr/sbin/httpd apache 17766 0.0 0.2 457584 11428 ? Sl 10:51 0:00 /usr/sbin/httpd apache 17771 0.0 0.2 457584 11180 ? Sl 10:54 0:00 /usr/sbin/httpd apache 17774 0.0 0.2 457584 11416 ? Sl 10:54 0:00 /usr/sbin/httpd apache 17779 0.0 0.2 457584 11428 ? Sl 10:58 0:00 /usr/sbin/httpd apache 17784 0.0 0.2 457584 11380 ? Sl 11:00 0:00 /usr/sbin/httpd apache 17805 0.0 0.2 457584 11380 ? Sl 11:05 0:00 /usr/sbin/httpd apache 17818 0.0 0.2 457584 11156 ? Sl 11:11 0:00 /usr/sbin/httpd apache 17823 0.0 0.2 457584 11416 ? Sl 11:12 0:00 /usr/sbin/httpd apache 17827 0.0 0.2 457584 11412 ? Sl 11:13 0:00 /usr/sbin/httpd apache 17831 0.0 0.2 457584 11132 ? Sl 11:13 0:00 /usr/sbin/httpd root 17835 0.0 0.0 97780 3792 ? S 11:14 0:00 sshd: smaity [priv] smaity 17839 0.0 0.0 97780 1748 ? S 11:15 0:00 sshd: smaity@pts/0 smaity 17840 0.0 0.0 108288 1928 pts/0 Ss 11:15 0:00 -bash apache 17858 0.0 0.4 464884 18856 ? Sl 11:16 0:00 /usr/sbin/httpd apache 17862 0.0 0.3 457584 11904 ? Sl 11:17 0:00 /usr/sbin/httpd apache 17866 0.0 0.2 457584 11212 ? Sl 11:19 0:00 /usr/sbin/httpd apache 17871 0.0 0.2 457584 11144 ? Sl 11:20 0:00 /usr/sbin/httpd apache 17875 0.0 0.2 457584 11416 ? Sl 11:23 0:00 /usr/sbin/httpd apache 17880 0.0 0.2 457584 11408 ? Sl 11:23 0:00 /usr/sbin/httpd apache 17883 0.0 0.2 457584 11412 ? Sl 11:24 0:00 /usr/sbin/httpd apache 17888 0.0 0.2 457584 11412 ? Sl 11:25 0:00 /usr/sbin/httpd apache 17891 0.0 0.2 457584 11140 ? Sl 11:26 0:00 /usr/sbin/httpd apache 17899 0.0 0.2 457584 10984 ? Sl 11:32 0:00 /usr/sbin/httpd apache 17902 0.0 0.2 457584 11680 ? Sl 11:33 0:00 /usr/sbin/httpd apache 17906 0.0 0.2 457584 10980 ? Sl 11:33 0:00 /usr/sbin/httpd Output of wget http://mydomain.com/ --2012-09-13 13:35:17-- http://mydomain.com/ Resolving mydomain.com... 127.0.0.1 Connecting to mydomain.com|127.0.0.1|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 45 [text/html] Saving to: “index.html” 0% [ ] 0 --.-K/s in 0s Cannot write to “index.html” (No space left on device). UPDATE3: output of df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_inamivm-lv_root 18G 17G 0 100% / tmpfs 1.9G 0 1.9G 0% /dev/shm /dev/sda1 485M 71M 389M 16% /boot output of wget -O /dev/null http://127.0.0.1/ --2012-09-13 13:47:49-- http://127.0.0.1/ Connecting to 127.0.0.1:80... connected. HTTP request sent, awaiting response... 200 OK Length: 45 [text/html] Saving to: “/dev/null” 100%[======================================================================================================>] 45 --.-K/s in 0s 2012-09-13 13:47:54 (8.57 MB/s) - “/dev/null” saved [45/45]

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• Frequently getting booted from Securemote VPN-1 Connection

  - by Nick L.

  I connect to my office's network remotely through the Checkpoint SecuRemote E75 (R75) VPN application, but recently it's been causing me a lot of issues when connecting from home. I connect through a WRT54GL router running DD-WRT v24 firmware, so I have no clue if that affects anything. I took a dump of the logs for Checkpoint and here are the messages that populate when I get booted but I have no clue how to decipher them and my IT department is completely clueless in terms of resolving the situation. I'm thinking the router is blocking the keep alive connection or something along those lines, but I have no idea how to fix the problem. [ 2388 2932][30 Aug 22:47:49][TR_OFFICE_MODE] TR_OFFICE_MODE::TrOfficeMode::OmSendIpFrameCB: Not sending packet because it's not to the enc domain [ 2388 2932][30 Aug 22:47:50][TR_EVENTS] TR_EVENTS::Raise: Running registered cb... [ 2388 2932][30 Aug 22:47:50][TrComInf] TrComInf::TrComInfSendAsynchronic: __start__ 22:47:50.606 [ 2388 2932][30 Aug 22:47:50][TrComInf] TrComInf::TrComInf::TrComInfSendAsynchronic: Acquiring mutex [ 2388 2932][30 Aug 22:47:50][messaging] messaging::send_all: Sending Message {{ 2 }} , len 185 [ 2388 2932][30 Aug 22:47:50][tcpserver] TcpMultiPipe::pipe_if_send: Message (193 bytes) written successfully to socket 0x224 [ 2388 2932][30 Aug 22:47:50][TrComInf] TrComInf::TrComInf::TrComInfSendAsynchronic: Released mutex [ 2388 2932][30 Aug 22:47:50][TrComInf] TrComInf::TrComInfSendAsynchronic: __end__ 22:47:50.606. Total time - 0 milliseconds [ 2388 2932][30 Aug 22:47:50][TR_SRV2CL] TR_SRV2CL::SendNotification: Successfully sent notification of type TR_NOTIFICATION_TRAFFIC_IDLE [ 2388 2932][30 Aug 22:47:50][vna] vna_trap: received VNA_TRAP_FORWARD_PACKET [ 2388 2932][30 Aug 22:47:50][vna] vna_traffic_fwd_do : forwarding packet with 98 bytes [ 2388 2932][30 Aug 22:47:50][TR_OFFICE_MODE] TrOfficeMode::OmSendIpFrameCB: Packet to destination 192.168.162.15 of protocol 17 [ 2388 2932][30 Aug 22:47:50][TR_OFFICE_MODE] TR_OFFICE_MODE::TrOfficeMode::OmSendIpFrameCB: Not sending packet because it's not to the enc domain [ 2388 2932][30 Aug 22:47:51][vna] vna_trap: received VNA_TRAP_FORWARD_PACKET [ 2388 2932][30 Aug 22:47:51][vna] vna_traffic_fwd_do : forwarding packet with 98 bytes [ 2388 2932][30 Aug 22:47:51][TR_OFFICE_MODE] TrOfficeMode::OmSendIpFrameCB: Packet to destination 192.168.162.15 of protocol 17 [ 2388 2932][30 Aug 22:47:51][TR_OFFICE_MODE] TR_OFFICE_MODE::TrOfficeMode::OmSendIpFrameCB: Not sending packet because it's not to the enc domain [ 2388 2392][30 Aug 22:47:52][TracService] service_ctrl_ex: Called with ctrl_code 14 [ 2388 2392][30 Aug 22:47:52][TracService] service_ctrl_ex: System got SERVICE_CONTROL_SESSIONCHANGE message event type 4 session 2 [ 2388 2392][30 Aug 22:47:52][TracService] service_ctrl_ex: Console/remote disconnect has occured in session 2 [ 2388 2932][30 Aug 22:47:52][vna] vna_trap: received VNA_TRAP_FORWARD_PACKET [ 2388 2932][30 Aug 22:47:52][vna] vna_traffic_fwd_do : forwarding packet with 98 bytes [ 2388 2932][30 Aug 22:47:52][TR_OFFICE_MODE] TrOfficeMode::OmSendIpFrameCB: Packet to destination 192.168.162.15 of protocol 17 [ 2388 2932][30 Aug 22:47:52][TR_OFFICE_MODE] TR_OFFICE_MODE::TrOfficeMode::OmSendIpFrameCB: Not sending packet because it's not to the enc domain [ 2388 2932][30 Aug 22:47:52][TR_CONN_MANAGER] TR_CONN_MANAGER::ConnEnum: Returning connection at position 1 [ 2388 2932][30 Aug 22:47:52][TR_EVENTS] TR_EVENTS::Raise: Running registered cb... [ 2388 2932][30 Aug 22:47:52][TR_CONN_MANAGER] TR_CONN_MANAGER::ConnEventMainHandler: no gw handle [ 2388 2932][30 Aug 22:47:52][TR_CONN_MANAGER] TR_CONN_MANAGER::ConnEventMainHandler: Current connection state is TR_CONN_STATE_CONNECTED. Receiving event of type CONN_EVENT_SYSTEM_SESSION_LOGOFF. Connection handle = 1. System state: TR_SYSTEM_STATE_RUNNING [ 2388 2932][30 Aug 22:47:52][CONFIG_MANAGER] suspend_tunnel_while_locked return value false, because it is Default variable. Scope: site 12.43.159.10, gw NULL ,user USER [ 2388 2932][30 Aug 22:47:52][TR_CONN_MANAGER] TR_CONN_MANAGER::ConnEventConnectedHandler: no gw handle [ 2388 2932][30 Aug 22:47:52][TR_CONN_MANAGER] TR_CONN_MANAGER::ConnEventConnectedHandler: receive session logoff event while connected. cancelling connection Thanks all. :)

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• Programmatically add an ISAPI extension dll in IIS 7 using ADSI?

  - by fretje

  I apologize beforehand, this is a cross post of this SO question. I thought I'd ask it there first, but apparently it doesn't harvest any answers there. I hope it will get more attention here. When I have an answer somewhere, I'll delete the other one. I'm trying to programmatically add an ISAPI extension dll in IIS using ADSI. This has been working for ages on previous versions of IIS, but it seems to fail on IIS 7. I am using similar code like shown in this question: var web = GetObject("IIS://localhost/W3SVC/1/ROOT/specificVirtualDirectory"); var maps = web.ScriptMaps.toArray(); map[maps.length] = ".aaa,c:\\path\\to\\isapi\\extension.dll,1,GET,POST"; web.ScriptMaps = maps.asDictionary(); web.SetInfo(); After executing that code, I do see an "AboMapperCustom-12345678" entry for that specific dll in the "Handler mappings" of the specific virtual directory in which I added the script map. But when I try to use that extension in a browser, I always get HTTP Error 404.2 Not Found The page you are requesting cannot be served because of the ISAPI and CGI Restriction list settings on the Web server. Even after adding an entry to allow that specific dll in the "ISAPI and CGI restrictions", I keep getting that error. To make it actually work, I first have to undo these steps (encountering the same issue like the OP of the question mentioned above: after deleting the script map entry from the IIS manager GUI, I also have to programmatically delete it using ADSI before it's actually gone from the metabase). And then manually add an entry like this: inetmgr - webserver - website - virtual directory - handler mappings - add script map... path = *.dll, executable = <path to dll>, name = <doesn't matter, but it's mandatory> click "yes" on the question "do you want to allow this ISAPI extension?" When I compare the 2 entries, they are exactly the same, except for the "Entry Type" which seems to be "Inherited" for the programmatically added one and "Local" for the one added manually. The strange thing is, even though it says "Inherited", I don't see it anywhere in IIS on a higher level. Where is it inheriting from? In my code, I do add the script map to the specific virtual directory so it should be "Local" as well. Maybe there is the problem, but I don't know how to add a "Local" Script Map using ADSI. I really would like to keep using the ADSI method, as otherwise I will have to use different methods in our setup when working with IIS 7 or previous versions, and I would like to avoid that. To recap: How can I programmatically add a script map entry and its companion CGI and ISAPI restrictions entry to IIS 7 using ADSI? Anybody who can shed some light on this? Any help appreciated.

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