RunProgram()

Christian · Post by **Christian** » Wed Feb 18, 2004 9:59 pm

Hi!

This question was ask in the german forum from somebody. I tried it out and got the same problem. It's the following:

Using the RunProgram() function in Linux starts the external program but doesn't quits it. So at least until the PB program is quited. Here is an example code:

Code: Select all

S$="hallo"

If RunProgram("/bin/echo",S$,"",1) = 0
    MessageRequester("Error","Programm konnte nicht gestartet werden!",0)
    End
EndIf

Repeat
ForEver

So it opens the echo programm and then goes into a endless loop. The Flag of the RunProgram() function is set to "Wait until the launched program quits". So normally the endless loop should start after the echo program quits. But calling "ps aux" in a console shows that the echo program runs. ([echo <defunc>])

If I quit the PB programm with strg+c the echo programm also stops. But this is of course not wanted. So could this be a bug of PB or is it a "bug" in my thoughts?

best regards,
Christian

piie · Post by **piie** » Fri Feb 20, 2004 3:08 pm

Hi Christian, after I did'nt get an answer in the pure-board.de, I thought to post my problem here might give a solution,... but then I saw you even translated and posted my problem, thank you

maybe we will get some help here..

Christian · Post by **Christian** » Fri Feb 20, 2004 6:41 pm

Hi piie!

I hope so, but unfortunataly it does not seem so, yet. But we will see ... it's really a strange thing!

piie · Post by **piie** » Sat Feb 21, 2004 12:11 am

I hope somebody have a idea how to handle this. If not, we should talk to the developer, or? Because this is not just a little bug, I think. Under Linux you need nearly in every program the help of other linux-tools. And it is not very nice to see thousands of <defunc> Threads running....

pbdep · Post by **pbdep** » Mon Feb 23, 2004 4:56 pm

Its not a problem of RunProgram or of anything !

Also a [ DEFUNC ] is nothing bad, its only a fact that
the forked process could not find the root process to kill it.

AND because you probably run the program during comilation
you see the Forked process..nothing bad !!

you see probably in your PS -->

./purebasic.exe
echo [ defunc ]

Your program runs just fine when you run it standalown
and kill it with a CTRL-C.

Pbdep.

piie · Post by **piie** » Tue Feb 24, 2004 12:34 am

hm.. the problem is, that i started to build a tool with wich you can change the volume (therefor i use >aumix<) or run other applications by using a joypad and after i compiled and ran it, i do a few volumechanges and my processlist shows as much defunc aumix processes as volumechanges i did..
This tool have to do much more than maybe 1000 volume changes, before it will be stopped. And it doesnt look nice if you have so much useless threads in your ps. I also think, that these 1000 processes will speed down my cpu.