Call library multiple times

I troubleshooting some issues and I was hoping someone might be able to give me some insight into what is going on. I have some code in a suv-VI that looks like the following two snippets below. In the "errors.png" configuration, the code runs for a number of minutes and the errors out with error 1097. In the "runs.png" configuration, it seems to run just fine. Does anyone know why this might be?
My hunch is that the shared library I am calling into is not thread safe and that by using the error wire to establish a sequential dataflow relationship between the calls might avoid thread issues.
Attachments:
errors.png ‏11 KB
runs.png ‏10 KB

Seems pretty clear then that your hunch is correct and the DLL isn't designed to allow calls to multiple functions in parallel. You can sequence the calls yourself with the error wire or let LabVIEW do it for you by setting the Run in UI thread option. The former is more flexible (your code can run in some other thread) and the latter is safer (the calls will still be sequential regardless of how you structure your code).

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Hello Experts,
Good morning.
I am new to ABAP,
I am working on one program which is used for printing a bank voucher for that i have to select multiple document number (BELNR), it is running fine with selecting a single document but for multiple selection i have to call adobeform multiple times.
Can anyone give me the solution how to do this.
Any suggestion will be appreciated.
Regards,
Dipen Pandya.

Yes i have done the same way.
Please have a look at my code.
REPORT zfi_print_bank_voucher.
TABLES: bkpf,
         bseg,
         skat.
TYPES : BEGIN OF lv_main,
        belnr TYPE bkpf-belnr,
        xblnr TYPE bkpf-xblnr,
        ebeln TYPE bseg-ebeln,
        bankn TYPE lfbk-bankn,
        budat TYPE bkpf-budat,
        bldat TYPE bkpf-bldat,
        bedat TYPE ekko-bedat,
        bankl TYPE lfbk-bankl,
        lifnr TYPE lifnr,
        END OF lv_main.
TYPES: BEGIN OF st_bseg,
         ebeln TYPE bseg-ebeln,
         bukrs TYPE bseg-bukrs,
         buzei TYPE bseg-buzei,
         hkont TYPE bseg-hkont,
         bschl TYPE bseg-bschl,
         saknr TYPE skat-saknr,
         txt20 TYPE skat-txt20,
         kostl TYPE bseg-kostl,
         mwsts TYPE bseg-mwsts,
         dmbtr TYPE bseg-dmbtr,
         belnr TYPE bseg-belnr,
       END OF st_bseg.
TYPES: BEGIN OF i_desc,
         spras TYPE skat-spras,
         saknr TYPE skat-saknr,
         txt20 TYPE skat-txt20,
   END OF i_desc.
TYPES: BEGIN OF st_bkpf,
        belnr TYPE bkpf-belnr,
        xblnr TYPE bkpf-xblnr,
        budat TYPE bkpf-budat,
        bldat TYPE bkpf-bldat,
   END OF st_bkpf.
TYPES: BEGIN OF st_lfbk,
         bankn TYPE lfbk-bankn,
         bankl TYPE lfbk-bankl,
   END OF st_lfbk.
TYPES: BEGIN OF st_ekko,
         ebeln TYPE ekko-ebeln,
         bedat TYPE ekko-bedat,
   END OF st_ekko.
DATA: it_bseg TYPE STANDARD TABLE OF st_bseg,
       wa_bseg TYPE st_bseg.
DATA: it_bkpf TYPE STANDARD TABLE OF st_bkpf,
       wa_bkpf TYPE st_bkpf.
DATA: it_desc TYPE STANDARD TABLE OF i_desc,
       wa_desc TYPE i_desc.
DATA: it_lfbk TYPE STANDARD TABLE OF st_lfbk,
       wa_lfbk TYPE st_lfbk.
DATA: it_ekko TYPE STANDARD TABLE OF st_ekko,
       wa_ekko TYPE st_ekko.
DATA: fname TYPE funcname,
       ls_outputparams TYPE sfpoutputparams,
       logo_bin TYPE xstring.
DATA: ls_result TYPE sfpjoboutput.
DATA: it_main TYPE STANDARD TABLE OF lv_main,
       wa_main TYPE lv_main.
DATA: i_bseg TYPE ztt_bseg WITH HEADER LINE.
DATA: ok_code TYPE sy-ucomm.
SELECTION-SCREEN BEGIN OF BLOCK blk1 WITH FRAME TITLE t001.
SELECT-OPTIONS bukrs FOR bkpf-bukrs OBLIGATORY DEFAULT '1000' NO-EXTENSION NO INTERVALS.
SELECT-OPTIONS belnr FOR bkpf-belnr OBLIGATORY.
PARAMETERS: year LIKE bkpf-gjahr DEFAULT sy-datum+0(4) OBLIGATORY.
SELECTION-SCREEN END OF BLOCK blk1.
INITIALIZATION.
   t001 = 'Enter Specific Details'.
START-OF-SELECTION.
   PERFORM feeding_data.
   PERFORM print_form.
*&      Form print_form
*       text
FORM print_form.
   CALL FUNCTION 'FP_FUNCTION_MODULE_NAME'
     EXPORTING
       i_name     = 'ZFI_BANK_VOUCHER_FORM'
     IMPORTING
       e_funcname = fname.
   ls_outputparams-bumode = 'M'.
   CALL FUNCTION 'FP_JOB_OPEN'
     CHANGING
       ie_outputparams = ls_outputparams
     EXCEPTIONS
       cancel          = 1
       usage_error     = 2
       system_error    = 3
       internal_error = 4
       OTHERS          = 5.
   IF sy-subrc <> 0.
     MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
   ENDIF.
   LOOP AT it_main INTO wa_main.
*at new belnr.
     PERFORM controll_internal.
     CALL FUNCTION fname "'/1BCDWB/SM00000237'
       EXPORTING
*   /1BCDWB/DOCPARAMS        =
         belnr_d                  = wa_main-belnr    "bkpf
         lifnr                    = wa_main-lifnr
         xblnr                    = wa_main-xblnr      "bkpf
         ebeln                    = wa_main-ebeln      "bseg
         bankn                    = wa_main-bankn      "lfbk
         budat                    = wa_main-budat      "bkpf
         bldat                    = wa_main-bldat      "bkpf
         podat                    = wa_main-bedat      "ekko
         bankl                    = wa_main-bankl      "lfbk
         itab_bseg                = i_bseg[]
* IMPORTING
*   /1BCDWB/FORMOUTPUT       =
      EXCEPTIONS
        usage_error              = 1
        system_error             = 2
        internal_error           = 3
        OTHERS                   = 4
     IF sy-subrc <> 0.
* Implement suitable error handling here
     ENDIF.
   ENDLOOP.
   CALL FUNCTION 'FP_JOB_CLOSE'
     IMPORTING
       e_result       = ls_result
     EXCEPTIONS
       usage_error    = 1
       system_error   = 2
       internal_error = 3
       OTHERS         = 4.
   IF sy-subrc <> 0.
     MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
   ENDIF.
ENDFORM.                    " PRINT_FORM
*&      Form FEEDING_DATA
*       text
* --> p1        text
* <-- p2        text
FORM feeding_data .
   SELECT ebeln
           bukrs
           buzei
           hkont
           bschl
           kostl
           mwsts
           dmbtr
           belnr
      FROM bseg INTO CORRESPONDING FIELDS OF TABLE it_bseg
                WHERE bukrs IN bukrs
                    AND belnr IN belnr.
   SELECT saknr txt20 FROM skat
     INTO CORRESPONDING FIELDS OF TABLE it_desc
       FOR ALL ENTRIES IN it_bseg
             WHERE saknr = it_bseg-hkont AND
                   spras = sy-langu.
   IF it_desc IS NOT INITIAL.
     LOOP AT it_bseg INTO wa_bseg.
       READ TABLE it_desc INTO wa_desc WITH KEY saknr = wa_bseg-hkont.
       IF sy-subrc = '0'.
         wa_bseg-txt20 = wa_desc-txt20.
         MODIFY it_bseg FROM wa_bseg.
       ENDIF.
     ENDLOOP.
   ENDIF.
   SELECT * FROM bseg
           INTO CORRESPONDING FIELDS OF TABLE it_main
           WHERE belnr IN belnr AND
                 shkzg = 'S'.
   LOOP AT it_main INTO wa_main.
     SELECT SINGLE lifnr FROM bseg
       INTO wa_main-lifnr
       WHERE belnr = belnr-low.
     SELECT SINGLE bankl bankn FROM lfbk
            INTO (wa_main-bankl, wa_main-bankn)
            WHERE bankl = wa_main-lifnr.
    SELECT SINGLE budat bldat FROM bkpf
      INTO (wa_main-budat, wa_main-bldat)
      WHERE belnr = belnr-low.
     SELECT SINGLE bedat FROM ekko
            INTO wa_main-bedat
            WHERE ebeln = wa_main-ebeln.
     MODIFY it_main FROM wa_main.
     CLEAR wa_main.
   ENDLOOP.
ENDFORM.                    " FEEDING_DATA
*&      Form CONTROLL_INTERNAL
*       text
* --> p1        text
* <-- p2        text
FORM controll_internal .
   LOOP AT it_bseg INTO wa_bseg.
* lw_bseg = wa_bseg.
     AT NEW belnr.
       i_bseg-buzei = wa_bseg-buzei.
       i_bseg-hkont = wa_bseg-hkont.
       i_bseg-bschl = wa_bseg-bschl.
       i_bseg-txt20 = wa_bseg-txt20.
       i_bseg-kostl = wa_bseg-kostl.
       i_bseg-mwsts = wa_bseg-mwsts.
       i_bseg-dmbtr = wa_bseg-dmbtr.
       APPEND i_bseg.
      ENDAT.
   ENDLOOP.
ENDFORM.                    " CONTROLL_INTERNAL

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Regrds
Balaji R

Hi Sravanthi
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Message was edited by: Ram Manohar Tiwari

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Yes,you are right. In iAS6.0 SP4 When multiple requests arrive,and the Servlet's init() method has not returned yet for the first request, the application server calls init()multiple times. This problem is resolved in iAS 6.5.
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Edited by: Joseph Sciacca on Sep 9, 2008 7:34 PM

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Cheers
K

Hi,
if you add the following print statement
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The image comes from the file system, which means it is rendered by the JSF lifecycle. If you reference the image with a URL then the lifecycle doesn't render the image but only refrences it.
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The reason why this happens is because the JSF filter is set to /faces , which means all files that are loaded through that path
Frank

Php include file getting called multiple times

I have created a form in file career.php. To carry out the validation user_registration.php is called at the beginning of the file.
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I have attached phperror.log which confirms the same.
career.php
<?php
session_start();
require_once('phpScript/user_registration.php');
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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$errors = array();
$messages = array();
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phperror.log
Marker - 12-Oct-2012 10:27:26 AM
[12-Oct-2012 04:57:33 UTC] Enter- user_registration.php. Testing mode 1
[12-Oct-2012 04:57:33 UTC] user_registration.php: Entered try catch block
[12-Oct-2012 04:57:33 UTC] Enter- library.php. Testing mode 1
[12-Oct-2012 04:57:33 UTC] Exit- library.php. Testing mode 1
[12-Oct-2012 04:57:33 UTC] Successfully called library.php
[12-Oct-2012 04:57:36 UTC] Enter- user_registration.php. Testing mode 1
[12-Oct-2012 04:57:36 UTC] Entered try catch block
[12-Oct-2012 04:57:36 UTC] Enter- library.php. Testing mode 1
[12-Oct-2012 04:57:36 UTC] Exit- library.php. Testing mode 1
[12-Oct-2012 04:57:36 UTC] Successfully called library.php
[12-Oct-2012 04:58:38 UTC] Enter- user_registration.php. Testing mode 1
[12-Oct-2012 04:58:38 UTC] Entered try catch block
[12-Oct-2012 04:58:38 UTC] Enter- library.php. Testing mode 1
[12-Oct-2012 04:58:38 UTC] Exit- library.php. Testing mode 1
[12-Oct-2012 04:58:38 UTC] Successfully called library.php
[12-Oct-2012 04:58:38 UTC] user_registration.php. Submit button pressed by user
[12-Oct-2012 04:58:39 UTC] user_registration.php, Processing enquiry form
[12-Oct-2012 04:58:39 UTC] Enter- process_upload.php. Testing mode 1
[12-Oct-2012 04:59:01 UTC] Exit- user_registration.php.
I am not able to understand why user_registration.php and library.php are executing again and again.
I ran this test on local testing server MAMP.
The results are the same on remote server also.
Please guide.

I'm not sure what's happening there. The important question is whether the code is executed successfully.
Since you're using the Zend Framework, it might be better to ask in a dedicated ZF forum.

Execution time for Call Library Function Node

I am experimenting with the Call Library Function Node block in LabVIEW and am curious if it should be running faster than what I'm seeing. For testing purposes, I have compiled and transfered to my RT target the .out file from the KB article http://digital.ni.com/public.nsf/allkb/81D1172E3C28A5E4862575CC0076A230 (I'm using the vxworks 6.1 version). The function in the .out file just multiplies two inputs together, adds a constant, and returns the result. I have put this inside a 1 kHz timed loop with a commanded period of 1 ms and via the Ticks(ms) block and shift registers I calculate the amount of time per loop execution. This process is apparently taking 5 ms per cycle and to me that seems slow. Is that roughly the correct execution time for this kind of setup? I will attach my test .vi file.
What I'm using:
Windows 7
LabVIEW 2009 SP1
NI-cRIO 9024 with NI-RIO 3.4.0
Solved!
Go to Solution.
Attachments:
test DLL.vi ‏31 KB

First off, the way you are doing timing isn't necessarily accurate because you don't know when the tick count VI is being called. For example, if it gets called on one iteration after your call library node executes, and the next iteration it gets called before the CLFN it executes, the subtraction doesn't include the call of the CLFN so you aren't seeing the true time it is taking for the dll to be called.
Where it says "error" on the top left hand corner of your loop. left click and choose previous iteration timing. Also, do you have the ability to choose a 1 Mhz clock? Are you sure it's actually being run on the RT and not on your PC? Running it on the PC would definitely make it difficult to execute at a 1 kHz rate.
CLA, LabVIEW Versions 2010-2013

Call library multiple times

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