Waiting a SystemTags() for terminating?

Hello

From my C program I start an external command with SystemTags() (say) "mycommand"

The context:
The C program generate a file (say) myfile.txt
Then I do a SystemTags() "mycommand myfile.txt mymodifiedfile.txt" to obtain (say) mymodifiedfile.txt
BUUUT SystemTags returns before the treatment is done so mymodifiedfile.txt is not here or not finished

So how to resolve that ?
Is there a synchronous mode for SystemTags ? or an other function to use ?


Many Thanks

If using the C library is not a problem, then you can replace it with system(), which will always wait for the command's completion.

@thellier

SYS_Aync tag defaults to FALSE, so the default behaviour should be to wait for the command to finish. Have you set it TRUE or something?

>If using the C library is not a problem, then you can replace it with system
OK I will give it a try

>SYS_Async tag defaults to FALSE
Seems that this tag despite his name dont do sync/async but close or not the input/ouput

Thanks

No, that's not true. SystemTags() definitely is syncronous unless you set SYS_Async to TRUE.

Maybe the program you run as mycommand detaches itself from the shell. Then you'll have a hard time to wait for its end.

A normal program which blocks the shell until it is finished will also let SystemTags block until the program returns.