Trouble on buffer getting past "clientTCPRead".

Hello!

I use the clientTCPRead callback function to get a response from the server (in fact a motor) once I have send a simple command.

When I send a command, I get a string "12345" (what position) and display it on the TEXTBOX control. It works very well.

However, when I display on the control of the CHAIN, the control displays only "2345" or "345".

(Using strlen to check the length of the RECEIVED_STRING, I get 5 when the control appears "2345" and 4 when "345".)

I have no idea why RECEIVED_STRING lasts and I think she is too small to contain the string "12345".

Perhaps strlen gives the size of "2345" or "345", which makes sense. :-|

Please save me from this disorder :-(

I joined the uir and code to help you understand it better.

Thank you in advance!

Hello

ClientTCPRead returns the number of bytes to read from TCP and stored to the buffer (so no need to call strlen). Also it is sometimes possible that not all data are read with a call to ClientTCPRead so it is need to wait when all are called data is read. is possible to read reminder multiple TCP or while loop. TCP is stream protokol, not paket protokol, if it is not guaranteed that when someone sending data in a single Send call, this other side to read in a single call also.

Second problem perhaps if the response data do not end with zero byte {this may cause a random program crash}, because SetCtrlVal for STRING/TEXTBOX need of standard string terminated by zero C. You can simply add it with something like RECEIVED_STRING [datasize] = 0; After suscefful ClientTCPRead call (beware of zero or negative return value). But do not forget that there is enough space or ClientTCPRead (, dataSize-1).

Tags: NI Software

Similar Questions

  • I have trouble to get past step 1 in Lightroom getting up and running. Have spent the last 5 hours on it and very little hair left. Anyone out there to help?

    I have trouble to get past step 1 in Lightroom getting up and running. Have spent the last 5 hours on it and very little hair left. Anyone out there to help?

    Hi Craigb89524984,

    I saw your Adobe ID (email address) you used to post here on the forums and found that a subscription to creative photography Cloud inscribed on it.

    We will be happy to help you, but before that, there are a few information such as:

    What is the exact error code/message, if you found one? Please attach a screenshot. See, FAQ: how to capture and after a video screen or blow?

    What operating system you are using with his version?

    Until then, check out the links below:

    Download and install Adobe Lightroom CC

    Error in downloading, installing or updating Adobe Creative Cloud applications

    Troubleshoot Adobe Creative cloud download, install and update questions

    You can also analyze the log files to find out the root cause of the problem: Troubleshooting Adobe Creative Cloud install problems with log files

  • cannot get past error - could not connect the user profile service

    My HP desktop computer has windows 7 - I can't get past - error message "user profile service failed to connect ' & 'impossible to load the user profile'!"  By clicking on the ICON that displays windows closes and repeats the error message read... a new user account must be defined the user upwards and copy the previous settings account - but I can't get there.

    Hello

    You can try the following.

    Shut down the PC.  Tap away at f8 that you start the PC to enter the Windows Recovery Console.  Use the arrow keys to select Safe mode and press ENTER.  If windows will load in this mode, on the Start Menu, click principally made programs, click Accessories, click System Tools and run the system restore.  Choose a restore point at least 24 hours prior to the issue of logon and then proceed to the restoration.  When you are finished, Windows will restart as normal in order to check if you can now connect correctly.

    Another option if the above does not help is as follows.

    Shut down the PC.  Tap away at f8 that you start the laptop to enter the Windows Recovery Console.  Use the arrow keys to select "Start using last good known Configuration" and press ENTER.

    Kind regards

    DP - K

  • can someone tell me why I can't update to El Capitan 10.11.2? the line "Show details" gets up and I click on it to make the update. When I do this, it just goes back to doing nothing, so I can never get past this point.

    can someone tell me why I can't update to El Capitan 10.11.2?

    When I try to update "updates available have changed" guest shows up.i click "Show details" prompt to complete the update and when I do that, it just goes back to doing nothing, so I can never get past this point. can someone help me with this, please?

    Thank you very much.

    In some cases, this error message is caused by a problem in the network. Restart your router as your device at wide band, if they are separated. If there is no change, see below.

    This procedure will remove some temporary and cache files. The files are generated automatically and do not contain any of your data. Sometimes they can become corrupted and cause problems like yours.

    Please, back up all data and read this message before doing anything.

    Triple-click anywhere in the line below on this page to select this option:

    /var/folders/zz/zyxvpxvq6csfxvn_n00000s0000068

    Right-click or Ctrl-click on the highlighted line and select

    Services ▹ reveal in Finder (or just to reveal)

    the contextual menu.* file should open with a selected subfolder. The subfolder has a long name beginning with "zyx" and ending with "68". Place this subfolder in the trash. Do not move other subfolders with similar names. You may be prompted for administrator login password. Restart the computer and empty the trash.

    * If you do not see the item context menu copy the selected text in the Clipboard by pressing Control-C key combination. In the Finder, select

    Go ▹ go to the folder...

    from the menu bar and paste it into the box that opens by pressing command + V. You won't see what you pasted a newline being included. Press return.

  • What is the 646 code and how can I get past to finish the updates for my computer?

    What is the 646 code and how can I get past to finish the updates for my computer?

    Hello Sonya Tapia,

    Thank you for your message.  Please click HERE to run the FixIt!  Let us know if this is or is not to solve your problem.

    See you soon

    Jason H. Engineer Support of Microsoft answers visit our Microsoft answers feedback Forum and let us know what you think.

  • Can't get past ctrl alt del login?

    I uninstalled the USB drivers becaue they were not working with the key usb or other devices so I uninstalled without realizing that I was using usb keyboard and mouse, changed keyboard sp2 but it won't work so cannot get past the ctrl alt del logon?

    SP2 mouse works, but no keyboard!

    It is a work computer and need to fix it.

    Its a Dell Precision 390 - XP Pro.

    Help please?

    Thank you

    Mike

    If your mouse works, then click on ease of access in the lower left corner of the login screen and select Type without the keyboard (on-screen keyboard). This will bring up the OSK and you can use the mouse to press the keys.

  • I have a xp system and my friend installed with a password, I can't reach him is there anyway I can get past this issue?

    original title: password, logon problem

    I have a xp system and my friend installed with a password, I can't reach him is there anyway I can get past this issue? I can't even logon to my computer.

    Hello
    Microsoft technical support engineers cannot help you recover the passwords of the files and Microsoft who are lost or forgotten product features. For more information about this policy, please refer to the sticky below.

  • Given to nine Compaq 7700, BSoD, boot XP infinite loop, can't even get past the black screen to enter Windows. STOP: 0X0000007E (0XC0000005, 0XF773B15F, 0XF78D2520, 0XF78D221C)

    Help.

    I just got a refurbished Compaq 7700. It has Windows XP for drives of the refurbished computers.

    I try to boot from the hard drive (HD) and infinite loops, it is never past the initial home screen (black with blue status bar).

    I can't open the safe or the HD mode, it freezes at kmxstart.sys and then restarts again.

    Original title: given to nine Compaq 7700, BSoD, boot XP infinite loop, can't even get past the black screen, to enter Windows.

    I tried to boot from the disk and created Windows appears, then load the files, but then automatically tries to start Windows (without repair option). It then jumps to the BSoD with error code (after advice to verify sufficient disk space, to disable the driver identified, to change video cards, BIOS updates...)

    STOP: 0X0000007E (0XC0000005, 0XF773B15F, 0XF78D2520, 0XF78D221C)

    Usbccgp.sys - address F773B15F base at F7737000, DateStamp 480254d 2

    Apparently, this driver is a printer driver? I don't have a printer, but do not know how to disable it without access to windows.

    I got a new Philips 18.5 "monitor, an optical mouse and a keyboard with it.

    My guess is that the screen is the problem, because it was full again when I received and therefore not tested with the system before shipping. Not sure about the mouse and the keyboard.

    I tried a few options in the BIOS screen as well, but no dice.

    Help! Before shipping the brand new...

    I thank you and have a wonderful new year.

    Craig.

    Howdy Daavee and Shekhar,

    I hope that your day is going well.

    It turns out that it was the hard drive, it was defective. The new unit arrived and it works beautifully. Thank you very much for all you help. I wish you a happy new year.

    Craig.

  • Try to install Windows Vista Service pack, but I cannot get past that the terms of the license pop-up ads.

    Install service pack for my Vista program,

    ... can not get past the license terms box pop... Help!

    Hello

    I suggest you to follow the steps in this link and check if it helps:

    http://support.Microsoft.com/kb/947366

    Also check out this link:

    http://Windows.Microsoft.com/en-us/Windows-Vista/learn-how-to-install-Windows-Vista-Service-Pack-2-SP2

    It will be useful.

  • I can't get past my start of the administration password please help

    Can't get past my administration start page

    Hello

    Could you give some information about the operating system on the unit and the details of the model of the device.

    Since you wil be able to reset the administrator password, if you're running Windows XP. Apart from this if you use another operating system like Windows Vista, Windows 7, Windows 8 or 8.1 or 10 Windows, you need to reinstall the operating system.

    If the sound related to your microsoft account then you link below to reset

    https://support.Microsoft.com/en-in/help/14105/Windows-8-what-to-do-if-forget-Windows-password

  • Windows 7 professional asks for a password when I never put one in place, so I can't get past the login screen.

    I have Windows 7 Professional installed on our desktop computer.  I've never set up a user account password when I installed last month, while I wouldn't not to remember it when I log in to Windows.  Last night, I rebooted the computer, but now Windows stops on the user account login screen and asks for a password.  He has never done this before, and I've never set up a password, so I have no idea what to do?  I can't get past this screen without a password.  I have very important files, I already put on this computer, and I need to be able to access quickly.  I don't have a password reset disk, as I've never set up a password first.  Why is this happen, and how can I'm get past this so I can access my files on my computer?  Please help in any way, you can, as soon as possible, please.  Thank you!

    Hi Marco,.

    You may need to contact a local technician to back up your data and then ask them to follow the steps on how to back up your files and restore your computer through this link: back up and restore your PC.

    In this way, you won't lose important any file from your computer.

    Let us know if you have any further questions.

    Kind regards.

  • Passport for blackBerry that I don't get paste any word or text on google translator

    Hi all!

    First of all, I would like to say that I am happy with my new passport of BlackBerry, it is extraordinary and elegant, but its os 10 should be updated from time to time despite of Android OS. Everyone here should at least know the news...

    Well, I'll see... as I wrote on the subject, I don't get paste any word or text on google translator. Just copy-taste function is malfunctioning in some sites in my opinion.

    Please could someone help me?

    Thank you in advance.

    Kind regards

    I'm not sure.  I'll give you my suggestion, followed by the justification.

    First of all, try to restart the device and then try to paste again.  If this solves the problem, read more.

    You should be able to touch the screen inside a text field and then release and the device then displays a small icon which users click to paste.  One of the reasons for which the icon does not appear is because there is nothing to paste.  First make sure that you cut something first and if you think you have done, double check.  Also, try to paste into an email to project or a note in do not forget to check that you can paste it into a different text entry field.

    Paste the icon may not appear because the site does not allow to stick inside the field.  This can be found in the case of a password entry field sometimes.  But I wasn't expecting for a case as in your example.

    So, if you have restarted and also makes sure stick work in other applications, try the following.  1 type something in the text field.  For example, type xxx.  2. touch and hold on until xxxxxx xxxxxx is highlighted and the small window with the dough as one of the actions is displayed.  3. tap paste.  This will replace xxxxx with the content you are pasting.

    Some password fields, you cannot paste.  For example, if you copy a password or code officer password or another source and try to paste into one of these areas, the icon stick will not appear.   However, something striking in the field and select and paste above are a way around.  Your situation is not exactly the same, but perhaps the proposed trick work.

    If you paste wrong in any field, and restarting the device does not solve the problem, then we expect more deep.

  • Try to upgrade to Windows 7 Home Premium and can't get past the blue screen upgrade now

    Try to run the upgrade to WIndows 7 home premium to clean virus problems. have tried for days, unable to get past the blue screen upgrade now.

    If you have compatible hardware and your computer still stops responding, disable any unnecessary material. Remove (USB) universal serial bus devices. Remove or disable network cards, sound cards and cards of the series; and then restart the installation.

  • I try to print a 1099 ha DEMO PRINTED ALL OVER IT TI. How do we get past?

    I try to print a 1099. There DEMO printed on it. How do we get past this?

    It seems that the person who is provided with the PDF of the 1099 using a trial version / demo of the software that generated it.

    It is not controlled by Adobe Reader, which I assume that you are viewing the PDF file with. You must contact the person or company who gave you the 1099.

  • DML producing a number of memory buffer gets

    -> % Total DB Time is the Elapsed Time of the SQL statement divided
   into the Total Database Time multiplied by 100

Stat Name                                Statement   Per Execution % Snap
---------------------------------------- ---------- -------------- -------
Elapsed Time (ms)                         4,467,074      558,384.2     1.3
CPU Time (ms)                             4,464,077      558,009.6     5.0
Executions                                        8            N/A     N/A
Buffer Gets                              ##########   69,615,266.0     7.4
Disk Reads                                   10,149        1,268.6     0.0
Parse Calls                                       3            0.4     0.0
Rows                                          3,673          459.1     N/A
User I/O Wait Time (ms)                       3,344            N/A     N/A
Cluster Wait Time (ms)                            0            N/A     N/A
Application Wait Time (ms)                        0            N/A     N/A
Concurrency Wait Time (ms)                        0            N/A     N/A
Invalidations                                     0            N/A     N/A
Version Count                                     3            N/A     N/A
Sharable Mem(KB)                                 79            N/A     N/A
          -------------------------------------------------------------

Execution Plan
------------------------------------------------------------------------------
| Id  | Operation           | Name   | Rows  | Bytes | Cost (%CPU)| Time     |
------------------------------------------------------------------------------
|   0 | UPDATE STATEMENT    |        |       |       |   901 (100)|          |
|   1 |  UPDATE             | ATMMST |       |       |            |          |
|   2 |   FILTER            |        |       |       |            |          |
|   3 |    TABLE ACCESS FULL| ATMMST |  4647 | 74352 |    21   (0)| 00:00:01 |
|   4 |    TABLE ACCESS FULL| GLHDR  |     1 |    25 |     3   (0)| 00:00:01 |
|   5 |   TABLE ACCESS FULL | GLHDR  |     3 |    75 |     3   (0)| 00:00:01 |
------------------------------------------------------------------------------

Note
-----
   - dynamic sampling used for this statement



Full SQL Text

SQL ID       SQL Text
------------ -----------------------------------------------------------------
gjv62cn93dvx UPDATE ATMMST A SET A.UPLOAD_GL_UPTO = (SELECT TOTRANDT FROM GLHD
             DR H WHERE H.ATMID = A.ATMID AND H.UPLOADDT = :B1 ) WHERE EXISTS
             (SELECT TOTRANDT FROM GLHDR D WHERE D.ATMID = A.ATMID AND D.UPLOA
             DDT = :B1 AND (D.TOTRANDT > A.UPLOAD_GL_UPTO OR A.UPLOAD_GL_UPTO
             IS NULL ) )
    Although the size of the table is small, it produces gets heavy buffer.

    'ATMMST' size = 6462 rows = 4 MB
    'GLHDR' size = 753149 rows = 80 MB

    Given the size of the tables involved, the buffer gets seems unjustifiable. Application in the shadow of light on it.
    BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE    10.2.0.4.0      Production
TNS for Linux: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production
    Kind regards

    It is full of GLHDR of scanning for each row in ATMMST

    80 MB * 6462 / block size of 8192 = 63millions buffer becomes.

    Therefore in the stadium.

Maybe you are looking for

  • the e-mail page icon is not in the pane customize where can I find

    Trying to send an email page no link, I tried the Customize page but the icon is not there

  • "firefox" link in menu bar leads to the blank page

    When I click on 'help' and scroll down to "firefox help", the link leads only to blank page!In the address bar, he said: https://support.Mozilla.org/1/Firefox/38.0.5/Winnt/en-us/Firefox-helpMy version is 38.0.5Using Windows XP.Never used to have this

  • HP Pavilion m94021: boot floppies do not match computer

    Some years, I bought a desktop computer HP Pavilion back to Office Depot.  They MADE the disks to start for me.  Now, I have a new hard drive and I put in the first boot floppies and he whirred around for awhile, looking as if she was doing something

  • problem of monitor T61

    Hi people, I have a problem with my monitor since I opened my laptop I just glue a small part is where the fan in the corner. How ever I did check everything is corect in the view and I thing there is no scratches on the wires. I tried with onether d

  • New computer Windows 10

    My old computer is making the soul, and I think to get a new one. I am using windows 7 at the moment and all my programs work on it. If I get a new computer, there is windows 8 or 10 on it. Can I downgrade to windows 7 so that my programs still work