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• Receive Event Notification Broad-casted from Fortran in Managed Code

  - by Ngu Soon Hui

  I have a fortran (unmanaged code) dll as the calculation engine, and a C# form as the GUI. Now, the calculation in fortran is long, so in order not to bore the users, I decided to use Asynch command to create a progress bar. The fortran dll would be responsible for putting messages in the progress bar as the calculation proceeds. Any idea how this can be done?

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• receive string with chars

  - by Meloun

  Hi all, i am quite new in python. I am receiving (through pyserial) string with data values. How can I parse these data to particular data structure? I know that 0-1 byte : id 2-5 byte : time1 =>but little endian (lsb first) 6-9 byte : time2 =>but little endian (lsb first) and I looking for a function: def parse_data(string): data={} data['id'] = ?? data['time1'] = ?? data['time2'] = ?? return data thanks

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• receive xml file via post in php

  - by thegunner

  Hi, I'm looking for a PHP script that can accept an XML file via a POST, then send a response.... Does anyone have any code that could do this? So far the only code I have is this but not sure about the response or if indeed I am even going in the right direction as XML characters are not saved correctly. Any ideas? <?php if ( $_SERVER['REQUEST_METHOD'] === 'POST' ){ $postText = file_get_contents('php://input'); } $datetime=date('ymdHis'); $xmlfile = "myfile" . $datetime . ".xml"; $FileHandle = fopen($xmlfile, 'w') or die("can't open file"); fwrite($FileHandle, $postText); fclose($FileHandle); ?> Thanks,

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• C++ networking simple send and receive

  - by Wallter

  I'm trying to link 10 computers together, the program i would like to write would have one 'control' computer. From what I've looked up this computer would take all the packets sent over the network and do a echo with them... right? The other computers would need to be able to send information (then echoed to the others) to the 'control' ... is there a easy! or simple way to do this? From what I've seen i want a non-blocking socket? I have looked into sockets and such but for an armature programmer like me, this seems like a daunting task :) I'm kind-of looking for an easy class implication that has a send() and an event driven recv(). I'm not going to be sending that much information over the network.

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• Find which MFC child window would receive a mouse click

  - by tfinniga

  So, I have a plugin to an MFC program. I'm using a mouse event hook (from SetWindowsHookEx) to capture clicks. The host application can have any number of (possibly overlapping) child windows open, but I only want to intercept clicks in a particular child window. Is there a way to figure out in the hook proc which of the child windows would process the click? I guess it's something like enumerate all child windows, looking at Z-order, but I'm very unfamiliar with the MFC/Win32 libraries, and I'm not able to find any good discussion about how to enumerate all children and calculate which is topmost.

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• Why my HttpPost can't receive all response data?

  - by Johnny

  I'm on Android 1.5, and my code is like this: HttpPost httpPost = new HttpPost(url); HttpEntity entity = new UrlEncodedFormEntity(params, HTTP.UTF_8); httpPost.setEntity(entity); HttpResponse response = httpClient.execute(httpPost); HttpEntity respEntity = response.getEntity(); String result = EntityUtils.toString(respEntity, DEFAULT_CHARSET); After successfully executed these codes, the result is a stripped string. I've tried using browser to test the url+param, it works fine and got all data. What's wrong with this code? Is there any parameters I need to specified?

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• Java Receive Attachment problem ?

  - by Karthick RM

  Hi to all.I use the following code to download the attachment from the mail .But it gives the ClassCastException on the Multipart declaration Exception in thread "main" java.lang.ClassCastException: com.sun.mail.imap.IMAPInputStream cannot be cast to javax.mail.Multipart at ReadAttachment.main(ReadAttachment.java:52) How do I handle IMAPInputStream? Thanks in advance !!! Message messages[] = inbox.getMessages(); for (int j = 0; j < messages.length; j++) { String mailType = messages[j].getContentType(); System.out.println("------------ Message " + (j + 1) + " ------------"); System.out.println("SentDate : " + messages[j].getSentDate()); System.out.println("From : " + messages[j].getFrom()[0]); System.out.println("Subject : " + messages[j].getSubject()); System.out.println("Type :" + messages[j].getContentType()); System.out.println("Attachment :" + messages[j].getFileName()); Multipart mp = (Multipart) messages[j].getContent(); ........... .............. System.out.println(); }

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• tcp/ip communication sender receive different process speed problem

  - by Benny

  In my program the receiver has a bigger workload, should i make the sender wait for the receiver through methods like ACK?

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• Send and receive Array as GET/POST using querystring

  - by Vanwaril

  I've got the following code, but it doesn't seem to work: var post_req = { array: [ [ { param1: 'something', param2: 123 } ], [ ], [ ], [ { param2: 'something', param4: 1234, param1: 'hello' } ] ] }; var data_send = querystring.stringify(post_req); var request = client.request('POST', '/', headers); request.end(data_send); and if( req.method == 'POST' ) { req.addListener('data', function(chunk) { POST = querystring.parse(chunk); console.log(POST); } } I end up with 5 sub-arrays, corresponding to the 5 parameters in the objects but with extra '][' characters in their names: { array: [ { '][param1': 'something' } , { '][param2': '123' } , { '][param2': 'something' } , { '][param4': '1234' } , { '][param1': 'hello' } ] }

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• How to receive HTTP messages using Socket

  - by Poma

  I'm using Socket class for my web client. I can't use HttpWebRequest since it doesn't support socks proxies. So I have to parse headers and handle chunked encoding by myself. The most difficult thing is to determine length of content so I have to read it byte-by-byte. First I have to use ReadByte() to find last header ("\r\n\r\n" combination), then read chunk's size etc. But this approach has very poor performance. Can you suggest better solution? Maybe some open source examples or libraries that handle http request through sockets (not very big and complicated though, I'm a noob)

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• Receive input over TCP/IP and use it to update HTML

  - by mawg

  This has got to be a FAQ, so can someone please just direct me to a "network programming for dummies" URL? The server wants to push information to a client or broadcast to all, when an event happens - as opposed to the clients constantly polling the server "just in case". The client then updates a browser page display. How do I do that? (toldya it was a n00b question) Should I have a thread which receives info on a socket and then writes it to a database which the browser display (PHP) can process with an HTML refresh tag, or what? Sorry to sound so dumb.

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• How to receive a datastream from a device on your computer, in C#

  - by WebDevHobo

  I plan to build a small audio-recorder app in C#. My laptop has a built in Microphone that's always active, so I want to use that as an early-stage test. I would simply start recording, save the file as a .wav or even use the LAME dll to make it into an MP3. The problem is, I don't know how to contact that microphone. Do I use a library that can detect a device, or do I just catch a stream of bytes from the port that the device is on? I don't have any experience with receiving data from connected devices. I suppose that I'll need to enter all the data into a byte array and then Serialize that into a WAV file, but I'm not sure. Can I get some pointers on this subject?

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• python send/receive hex data via TCP socket

  - by Mike

  I have a ethenet access control device that is said to be able to communicate via TCP. How can i send a pachet by entering the HEX data, since this is what i have from their manual (a standard format for the communication packets sent and received after each command)

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• External Javascript file fails to receive variables from previous javascript block

  - by Franc

  I've been searching the net for several hours and can't find an answer in the whole "external js file"-jungle. I hope you guys can help! In short: My external javascript file doesn't seem to get the variables which I defined in the main.php file.. On main.php I define php variables and "transform" them into javascript variables <head>... <script type="text/javascript"> var phpmain_img = <?php echo json_encode($main_img); ?>; var phpvar1_large = <?php echo json_encode($var1_large); ?>; var phpvar2_large = <?php echo json_encode($var2_large); ?>; var phpvar3_large = <?php echo json_encode($var3_large); ?>; var phpvar4_large = <?php echo json_encode($var4_large); ?>; </script> ... <script language="javascript" type="text/javascript" src="/wshop/ext.js"></script> </head> In my ext.js file I want to process those variables. In the ext.js file I defined a the function swapImage() that will be used back in the main PHP: var imgArray = new Array( phpmain_img, phpvar1_large, phpvar2_large, phpvar3_large ); function swapImage(imgID) { var theImage = document.getElementById('theImage'); var newImg; newImg = imgArray[imgID]; theImage.src = newImg; } function preloadImages() { for(var i = 0; i < imgArray.length; i++) { var tmpImg = new Image; tmpImg.src = imgArray[i]; } } Result: The swapImage() in the main.php... doesnt work <div id="image"> <img id="theImage" src="<?=$main_img; ?>" alt="" /> </div> <div id="thumbs"> <?php echo "<img src=\"<$main_img_small\" alt=\"\" onmouseover=\"swapImage(0);\">"; echo "<img src=\"$var1_small\" alt=\"\" onmouseover=\"swapImage(1);\">"; echo "<img src=\"$var2_small\" alt=\"\" onmouseover=\"swapImage(2);\">"; echo "<img src=\"$var3_small\" alt=\"\" onmouseover=\"swapImage(3);\">"; ?> <br /> </div> Any help is greatly appreciated! UPDATE: I don't get a specific error, the swapImage functions doesn't work at mouseover. However, I tried to output the variables with e.g. document.write(phpimg_main) but nothing appears which makes me believe that there's something wrong with the handing over of the variables... here's the source code browser output `<html> <head> <link href="../demo.css" rel="stylesheet" type="text/css" /> <style type="text/css"> .... </style> <script type="text/javascript"> var phpmain_img = {"0":"http:\/\/path\/to\/main\/image.jpg"}; var phpvar1_large = {"0":"http:\/\/path\/to\/image1.jpg"}; var phpvar2_large = {"0":"http:\/\/path\/to\/image2.jpg"}; var phpvar3_large = null; var phpvar4_large = null; </script> <script language="javascript" type="text/javascript" src="/wshop/ext.js"></script> </head> <body onload="preloadImages()"> <div id="image"> <img id="theImage" src="http://path-to-main-image.jpg" alt="" /> </div> <div id="thumbs"> <img src="http://path-to-main-image.jpg" alt="" onmouseover="swapImage(0);"><img src="http://path-to-image1.jpg" alt="" onmouseover="swapImage(1);"><img src="http://path-to-image2.jpg" alt="" onmouseover="swapImage(2);"> <br /> </div> </body> `

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• Indy client receive string

  - by Eszee

  Im writing an Indy chat app, and am wondering if there is a way for the server component to tell the client that there is a string waiting, or even a way for the client to have an "OnExecute" like event. This is what i have now: server: procedure TServer.ServerExecute(AContext: TIdContext); var sResponse: string; I: Integer; list: Tlist; begin List := Server.Contexts.LockList; sResponse:= AContext.Connection.Socket.ReadLn; try for I := 0 to List.Count-1 do begin try TIdContext(List[I]).Connection.IOHandler.WriteLn(sResponse); except end; end; finally Server.Contexts.UnlockList; end; end; Client: procedure TForm1.Button1Click(Sender: TObject); var sMsg : string; begin Client.Socket.WriteLn(edit1.Text); sMsg := Client.Socket.ReadLn; Memo1.Lines.Add(sMsg); end; The problem is when i have 2 or more clients running the messages keep stacking because the button only processes 1 message a time. I'd like a way for the client to wait for messages and when it is triggered it processes those messages, like it does now under the button procedure. I've tried to put the "readln" part under a timer, but that causes some major problems. Im Using Delphi 2010 and Indy 10

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• Can't receive touch in children UIView....

  - by Tattat

  I have a main layer, which is the background, that can accepts touch, but it don't have any touch on a UIView layer that on top of the main layer. How can I enable the top UIView can accept touch, thx.

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• How to make a service not receive messages at certain times

  - by miker169

  I'm currently learning wcf for an up and coming project. The service I am creating is using MSMQ to update the database, but the database can't accept messages at certain times. The service is going to be a windows service. The one thing I am coming up against at the moment is how I can get the service to stop reading messages from the queue at these times, for instance lets say I don't want to read messages from the queue on sundays. How would I go about implementing this. So that the client can send messages to the queue that update the database but the service doesn't read the messages until monday, so that the database gets all the updates on the monday? I have started looking at creating a customhost, but I'm not sure if I'm heading in the right direction with this. Thanks in advance.

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• How to receive EMails in C# application?

  - by Sheery

  Hi dears, I have an application build in C# for reading and saving SMS and MMS, now i want to add another functionality of reading EMails through my C# application using any mail servcies e.g gmail, hotmail or yahoo? How to do this in C#?

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• Linux: Can Recvmsg be used to receive the IP_TOS of every incoming packet

  - by Mayutan

  Can one use recvmsg() to obtain the IP_TOS field of every incoming packet or does it just show the IP_TOS value that is set for the particular socket. If not, does anyone know of a solution to obtain the IP_TOS values of every incoming packets. I am using a UDP application and therefore do not get to view the IP_TOS field at the application layer as is the case with TCP. Thanks.

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• NTP daemon or ntpdate doesn't synchronize

  - by user2862333

  I'm having some problems with synchronization with an NTP server. 1) The NTP daemon doesn't sync the system clock at all, even though it's running (confirmed with /etc/init.d/ntp status). Forcing to sync with ntpd -q or ntpd -gq does not work either. 2) Stopping the NTP daemon and syncing manually with ntpdate does give me the following output: ~# ntpdate -d 0.debian.pool.ntp.org 6 Nov 16:48:53 ntpdate[4417]: ntpdate [email protected] Sat May 12 09:07:19 UTC 2012 (1) transmit(79.132.237.5) receive(79.132.237.5) transmit(85.234.197.2) receive(85.234.197.2) transmit(194.50.97.34) receive(194.50.97.34) transmit(79.132.237.1) receive(79.132.237.1) transmit(79.132.237.5) receive(79.132.237.5) transmit(85.234.197.2) receive(85.234.197.2) transmit(194.50.97.34) receive(194.50.97.34) transmit(79.132.237.1) receive(79.132.237.1) transmit(79.132.237.5) receive(79.132.237.5) transmit(85.234.197.2) receive(85.234.197.2) transmit(194.50.97.34) receive(194.50.97.34) transmit(79.132.237.1) receive(79.132.237.1) transmit(79.132.237.5) receive(79.132.237.5) transmit(85.234.197.2) receive(85.234.197.2) transmit(194.50.97.34) receive(194.50.97.34) transmit(79.132.237.1) receive(79.132.237.1) server 79.132.237.5, port 123 stratum 2, precision -20, leap 00, trust 000 refid [79.132.237.5], delay 0.05141, dispersion 0.00145 transmitted 4, in filter 4 reference time: d624e3b1.f490b90d Wed, Nov 6 2013 16:50:09.955 originate timestamp: d624e457.eaaf787c Wed, Nov 6 2013 16:52:55.916 transmit timestamp: d624e36c.4a7036fd Wed, Nov 6 2013 16:49:00.290 filter delay: 0.08537 0.05141 0.05151 0.06346 0.00000 0.00000 0.00000 0.00000 filter offset: 235.6038 235.6087 235.6095 235.6068 0.000000 0.000000 0.000000 0.000000 delay 0.05141, dispersion 0.00145 offset 235.608782 server 85.234.197.2, port 123 stratum 2, precision -20, leap 00, trust 000 refid [85.234.197.2], delay 0.05151, dispersion 0.00336 transmitted 4, in filter 4 reference time: d624e3e7.dc6cd02b Wed, Nov 6 2013 16:51:03.861 originate timestamp: d624e458.1c91031f Wed, Nov 6 2013 16:52:56.111 transmit timestamp: d624e36c.7da1d882 Wed, Nov 6 2013 16:49:00.490 filter delay: 0.05765 0.07750 0.06013 0.05151 0.00000 0.00000 0.00000 0.00000 filter offset: 235.6048 235.6014 235.6035 235.6078 0.000000 0.000000 0.000000 0.000000 delay 0.05151, dispersion 0.00336 offset 235.607826 server 194.50.97.34, port 123 stratum 3, precision -23, leap 00, trust 000 refid [194.50.97.34], delay 0.03021, dispersion 0.00090 transmitted 4, in filter 4 reference time: d624e38d.2bce952c Wed, Nov 6 2013 16:49:33.171 originate timestamp: d624e458.4dbbc114 Wed, Nov 6 2013 16:52:56.303 transmit timestamp: d624e36c.b0d38834 Wed, Nov 6 2013 16:49:00.690 filter delay: 0.03030 0.03636 0.03091 0.03021 0.00000 0.00000 0.00000 0.00000 filter offset: 235.6095 235.6085 235.6098 235.6105 0.000000 0.000000 0.000000 0.000000 delay 0.03021, dispersion 0.00090 offset 235.610589 server 79.132.237.1, port 123 stratum 3, precision -20, leap 00, trust 000 refid [79.132.237.1], delay 0.05113, dispersion 0.00305 transmitted 4, in filter 4 reference time: d624dfcb.6acea332 Wed, Nov 6 2013 16:33:31.417 originate timestamp: d624e458.838672ad Wed, Nov 6 2013 16:52:56.513 transmit timestamp: d624e36c.e405181c Wed, Nov 6 2013 16:49:00.890 filter delay: 0.06345 0.05113 0.05681 0.05656 0.00000 0.00000 0.00000 0.00000 filter offset: 235.6087 235.6038 235.6010 235.6074 0.000000 0.000000 0.000000 0.000000 delay 0.05113, dispersion 0.00305 offset 235.603888 6 Nov 16:49:00 ntpdate[4417]: step time server 79.132.237.5 offset 235.608782 sec Clearly, ntpdate can reach the NTP server(s), but after checking the clock, it hasn't changed and is still displaying the wrong time. Any ideas what would be the problem would be much appreciated.

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• Can I require a large donation ($499) in order for a company to receive an extended version of my open source project? [closed]

  - by Damian

  I want to make my project open source but some of its more advanced features are targeted to companies so I would like to require a donation before I send the source code to the donating company. It will be something like that: "If you want to use the extended features of XXXXXXX, please make a donation of $499 and you will receive the source code and the jar with the extended features. You will also receive personalized support by email." Is it legal and acceptable to do something like that? Can the companies donate an amount like that to an open source project? I mean, is it easy for them in terms of their accounting, tax, etc. to donate $499 dollars to an open source project. I know it is not a matter whether they will have money or not but more of a paying procedure matter.

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• git post-receive hook throws "command not found" error but seems to run properly and no errors when run manually

  - by Ben

  I have a post-receive hook that runs on a central git repository set up with gitolite to trigger a git pull on a staging server. It seems to work properly, but throws a "command not found" error when it is run. I am trying to track down the source of the error, but have not had any luck. Running the same commands manually does not produce an error. The error changes depending on what was done in the commit that is being pushed to the central repository. For instance, if 'git rm ' was committed and pushed to the central repo the error message will be "remote: hooks/post-receive: line 16: Removed: command not found" and if 'git add ' was committed and pushed to the central repo the error message will be "remote: hooks/post-receive: line 16: Merge: command not found". In either case the 'git pull' run on the staging server works correctly despite the error message. Here is the post-receive script: #!/bin/bash # # This script is triggered by a push to the local git repository. It will # ssh into a remote server and perform a git pull. # # The SSH_USER must be able to log into the remote server with a # passphrase-less SSH key *AND* be able to do a git pull without a passphrase. # # The command to actually perform the pull request on the remost server comes # from the ~/.ssh/authorized_keys file on the REMOTE_HOST and is triggered # by the ssh login. SSH_USER="remoteuser" REMOTE_HOST="staging.server.com" `ssh $SSH_USER@$REMOTE_HOST` # This is line 16 echo "Done!" The command that does the git pull on the staging server is in the ssh user's ~/.ssh/authorized_keys file and is: command="cd /var/www/staging_site; git pull",no-port-forwarding,no-X11-forwarding,no-agent-forwarding, ssh-rsa AAAAB3NzaC1yc2EAAAABIwAA... (the rest of the public key) This is the actual output from removing a file from my local repo, committing it locally, and pushing it to the central git repo: ben@tamarack:~/thejibe/testing/web$ git rm ./testing rm 'testing' ben@tamarack:~/thejibe/testing/web$ git commit -a -m "Remove testing file" [master bb96e13] Remove testing file 1 files changed, 0 insertions(+), 5 deletions(-) delete mode 100644 testing ben@tamarack:~/thejibe/testing/web$ git push Counting objects: 3, done. Delta compression using up to 2 threads. Compressing objects: 100% (2/2), done. Writing objects: 100% (2/2), 221 bytes, done. Total 2 (delta 1), reused 0 (delta 0) remote: From [email protected]:testing remote: aa72ad9..bb96e13 master -> origin/master remote: hooks/post-receive: line 16: Removed: command not found # The error msg remote: Done! To [email protected]:testing aa72ad9..bb96e13 master -> master ben@tamarack:~/thejibe/testing/web$ As you can see the post-receive script gets to the echo "Done!" line and when I look on the staging server the git pull has been successfully run, but there's still that nagging error message. Any suggestions on where to look for the source of the error message would be greatly appreciated. I'm tempted to redirect stderr to /dev/null but would prefer to know what the problem is.

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• git post-receive hook throws "command not found" error but seems to run properly and no errors when run manually

  - by Ben

  I have a post-receive hook that runs on a central git repository set up with gitolite to trigger a git pull on a staging server. It seems to work properly, but throws a "command not found" error when it is run. I am trying to track down the source of the error, but have not had any luck. Running the same commands manually does not produce an error. The error changes depending on what was done in the commit that is being pushed to the central repository. For instance, if 'git rm ' was committed and pushed to the central repo the error message will be "remote: hooks/post-receive: line 16: Removed: command not found" and if 'git add ' was committed and pushed to the central repo the error message will be "remote: hooks/post-receive: line 16: Merge: command not found". In either case the 'git pull' run on the staging server works correctly despite the error message. Here is the post-receive script: #!/bin/bash # # This script is triggered by a push to the local git repository. It will # ssh into a remote server and perform a git pull. # # The SSH_USER must be able to log into the remote server with a # passphrase-less SSH key *AND* be able to do a git pull without a passphrase. # # The command to actually perform the pull request on the remost server comes # from the ~/.ssh/authorized_keys file on the REMOTE_HOST and is triggered # by the ssh login. SSH_USER="remoteuser" REMOTE_HOST="staging.server.com" `ssh $SSH_USER@$REMOTE_HOST` # This is line 16 echo "Done!" The command that does the git pull on the staging server is in the ssh user's ~/.ssh/authorized_keys file and is: command="cd /var/www/staging_site; git pull",no-port-forwarding,no-X11-forwarding,no-agent-forwarding, ssh-rsa AAAAB3NzaC1yc2EAAAABIwAA... (the rest of the public key) This is the actual output from removing a file from my local repo, committing it locally, and pushing it to the central git repo: ben@tamarack:~/thejibe/testing/web$ git rm ./testing rm 'testing' ben@tamarack:~/thejibe/testing/web$ git commit -a -m "Remove testing file" [master bb96e13] Remove testing file 1 files changed, 0 insertions(+), 5 deletions(-) delete mode 100644 testing ben@tamarack:~/thejibe/testing/web$ git push Counting objects: 3, done. Delta compression using up to 2 threads. Compressing objects: 100% (2/2), done. Writing objects: 100% (2/2), 221 bytes, done. Total 2 (delta 1), reused 0 (delta 0) remote: From [email protected]:testing remote: aa72ad9..bb96e13 master -> origin/master remote: hooks/post-receive: line 16: Removed: command not found # The error msg remote: Done! To [email protected]:testing aa72ad9..bb96e13 master -> master ben@tamarack:~/thejibe/testing/web$ As you can see the post-receive script gets to the echo "Done!" line and when I look on the staging server the git pull has been successfully run, but there's still that nagging error message. Any suggestions on where to look for the source of the error message would be greatly appreciated. I'm tempted to redirect stderr to /dev/null but would prefer to know what the problem is.

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• Workflow Foundation: How to create Receive activity with custom message in xaml designer?

  - by Petr Felzmann

  I need to have Receive activity which can receive my custom data. I found examples, but all use coded workflows like such public class ProcessRequest : Activity { public ProcessRequest() { Variable request = new Variable { Name = "request" }; Receive receiveRequest = new Receive { ServiceContractName = "IProcessRequest", OperationName = "Foo", CanCreateInstance = true, Content = ReceiveContent.Create(new OutArgument(request)) }; } } The main point is that Receive.Content property. It is not clear for me how I can do it in XAML designer. What I have to set in the dialog of the Content property - Message or Parameters and what to set inside those options? Thanks for the light!

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• How do I solve this indexOutOfBoundsException in my server send/receive thread?

  - by Stefan Schouten

  I am creating a multiplayer game in Java with a server and multiple clients. Everything runs perfectly, until I press the Kick-button in the server to kick a client. Error at receive thread of server, after kicking the first person who joined out of three: java.lang.IndexOutOfBoundsException: Index: 2, Size: 2 at java.util.ArrayList.rangeCheck(ArrayList.java:604) at java.util.ArrayList.get(ArrayList.java:382) > at networktest.Server$3.run(Server.java:186) at java.lang.Thread.run(Thread.java:722) The pointed line is the ois = new ObjectInputStream where I send datatype. The server kicks the first person perfectly, but removes the second one in the list too, with an error of java.lang.ClassCastException. server receive: private static Thread receive = new Thread() { @Override public void run() { ObjectInputStream ois; while (true) { for (int i = 0; i < list_sockets.size(); i++) { try { ois = new ObjectInputStream(list_sockets.get(i).getInputStream()); int receive_state = (Integer) ois.readObject(); // receive state ois = new ObjectInputStream(list_sockets.get(i).getInputStream()); byte datatype = (byte) ois.readObject(); // receive datatype if(datatype == 2){ ois = new ObjectInputStream(list_sockets.get(i).getInputStream()); ChatLine chatLine = (ChatLine) ois.readObject(); // receive ChatLine } else if (datatype == 0){ ois = new ObjectInputStream(list_sockets.get(i).getInputStream()); DataPackage dp = (DataPackage) ois.readObject(); // receive dp list_data.set(i, dp); } if (receive_state == 1) // Client Disconnected by User { disconnectClient(i); i--; } } catch (Exception ex) // Client Disconnected (Client Didn't Notify Server About Disconnecting) { System.err.println("Error @ receive:"); ex.printStackTrace(); disconnectClient(i); i--; } } try { this.sleep(3); } catch (InterruptedException ex) { Logger.getLogger(Server.class.getName()).log(Level.SEVERE, null, ex); } } } }; user send: Thread send = new Thread() { public void run() { ObjectOutputStream oos; byte datatype = 0; while (connected){ if (socket != null){ try { DataPackage dp = new DataPackage(); dp.x = Client.player.x; dp.y = Client.player.y; dp.username = username; dp.charType = charType; dp.walking = (byte)Client.player.walking; if (Client.outputChatLine.line != null) datatype = 2; else { datatype = 0; } oos = new ObjectOutputStream(socket.getOutputStream()); oos.writeObject(Integer.valueOf(Client.this.state)); // send state oos = new ObjectOutputStream(socket.getOutputStream()); oos.writeObject(Byte.valueOf(datatype)); // send datatype if (datatype == 2) { oos.reset(); oos.writeObject(Client.outputChatLine); Client.outputChatLine = new ChatLine(); } else { oos = new ObjectOutputStream(socket.getOutputStream()); oos.writeObject(dp); } if (Client.this.state == 1) { connected = false; socket = null; JOptionPane.showMessageDialog(null, "Client Disconnected", "Info", 1); System.exit(0); } } catch (Exception ex){} } try { this.sleep(2); } catch (InterruptedException ex) { Logger.getLogger(Client.class.getName()).log(Level.SEVERE, null, ex); } } } }; disconnect client method: public static void disconnectClient(int index) { try { list_clients_model.removeElementAt(index); list_client_states.remove(index); list_data.remove(index); list_sockets.remove(index); } catch (Exception ex) {} } Does anyone know how to solve this?

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