File Deletion problem

[TimStone]

The task is to export the contents of a file ( ewocfx ) to a .txt file, transmit the .txt file, and then delete it.

This code creates the .txt file:

Code: Select all  Expand view  RUN

    DbSelectArea( 0 )
    USE (   "ewocfx" )
    COPY TO (cTxtFile) FIELDS  Eveidn, Wrkdat, Srvmil, Wrkord, Vehsta, Vehlic, Indlid, Vehmak, Vehmod, Vehyer,;
        Labcod, Labdes, Commnt, Veheng, Vehtrn, Vehsmd, Vehsty, Mlsser, Mgmsys FOR ! ewocfx->comple DELIMITED WITH PIPE
    USE
 

Then it is uploaded to the other location.

This all works perfectly.

Then I execute the following to delete the .txt file, but it doesn't go away:

Code: Select all  Expand view  RUN

    FERASE( cTxtFile )
 

cTxtFile has the file name, with full drive and path location, ie. "c:\data\test.txt". It works to create, and send, the file, and it's value does not change.

Thoughts on why this would not erase the file.

[jvtecheto]

Hi friend.

Can you try ..

Fclose (cTxtfile)

Before érase.

Regards

José

Enviado desde mi Lenovo TB-J606F mediante Tapatalk

[Jimmy]

hi Tim,

Thoughts on why this would not erase the file.

i guess you talk about Network using SMB-2
all Function which create a "Temporary" File will "hold" it in "Cache"

read about "SMB2 Client Redirector Caches"
https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-7/ff686200(v=ws.10)?redirectedfrom=MSDN

FileInfoCacheLifetime
FileNotFoundCacheLifetime
DirectoryCacheLifetime

set all Value to 0 (zero) to disable "Cache"

[Enrico Maria Giordano]

The task is to export the contents of a file ( ewocfx ) to a .txt file, transmit the .txt file, and then delete it.

This code creates the .txt file:

Code: Select all  Expand view  RUN

    DbSelectArea( 0 )
    USE (   "ewocfx" )
    COPY TO (cTxtFile) FIELDS  Eveidn, Wrkdat, Srvmil, Wrkord, Vehsta, Vehlic, Indlid, Vehmak, Vehmod, Vehyer,;
        Labcod, Labdes, Commnt, Veheng, Vehtrn, Vehsmd, Vehsty, Mlsser, Mgmsys FOR ! ewocfx->comple DELIMITED WITH PIPE
    USE
 

Then it is uploaded to the other location.

This all works perfectly.

Then I execute the following to delete the .txt file, but it doesn't go away:

Code: Select all  Expand view  RUN

    FERASE( cTxtFile )
 

cTxtFile has the file name, with full drive and path location, ie. "c:\data\test.txt". It works to create, and send, the file, and it's value does not change.

Thoughts on why this would not erase the file.

Probably the file is still in use at the time you try to delete it. Can I see the full code from the creation of the file up to its deletion, in particular the upload section?

[karinha]

Try this:

Code: Select all  Expand view  RUN

#Include "Directry.ch"

   DELETEFILE( "FILE.TXT" )
 

Regards, saludos.

[hua]

A pause is required to allow windows time to finish writing and closing the text file.
I am just not sure whether one should use sysrefresh(), sleep() or some other function

[Enrico Maria Giordano]

Try also with SysWait().

[TimStone]

Thank you. It appears I have resolved the problem.

FYI, the process is running in a service so it took time to debug since the cycle only occurs once every 24 hours.

I did implement each of the suggested options, and then found cTxtFile actually was missing the .txt extension. That was included for the upload as variable cUpFile. Switching to that, the deletion occured.

Thanks for the ideas. I have left the SysWait and FCLOSE functions in place to make the process more stable.

[hua]

I don't think fclose() does anything since it requires a file handle, not a filename