Re: [Bug-apl] async syscall

Sat, 18 Aug 2018 11:30:46 -0700

Hi Kacper,

cool, thanks. Didn't know that trick.

/// Jürgen


On 08/18/2018 08:17 PM, Kacper Gutowski wrote:
On Sat, Aug 18, 2018 at 02:14:35PM -0300, Hudson Flavio Meneses Lacerda wrote:

How to run a subprocess in background (like system("foo &") in GNU
Octave)?

I have tried:

)HOST gv file.ps &

With )HOST you can do it like that:

      )HOST gv file.ps >&- &

)HOST uses popen(3) to capture and return command's output rather than
just spawning spawning it with system(3).  The & at the end works just
fine in a sense that the shell interpreting the command doesn't wait for
it and exits, but it doesn't close the standard output and )HOST waits
for that.  You can explicitly close it with >&-.

-k

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