see https://developer.gnome.org/glib/2.38/glib-Spawning-Processes.html#g-spawn-async-with-pipes
1. call g_spawn_async_with_pipes and get the stdin, stdout, stderr fds.
2. call g_child_watch on the pid returned in step 1.
3. create an io channel for each fd ( see g_io_channel_unix_new)
4. add each io channel to the main loop ( see g_io_add_watch) .
read external application output (see g_io_channel_read_*) in the callback function GIOFunc
and update your widget's text section
5. you can kill external programs by the pid you get in step 1.
NOTE: you need to release fds in callbacks in step 2.
On Thu, Oct 10, 2013 at 12:55 PM, Woody Wu <narkewoody@xxxxxxxxx> wrote:
Hi,
I am about to write a test runner with GTK+. It basically can list a lot
of external test programs (non-GTK+ pure Linux apps) in a treeview and
let user select one of them to run. While an external program is
running, I want to get all its outputs (to stdout/stderr) and keep
updating in a textview.
Since I am a Linux programmer, so I know how to fork a new process and
pipe into an external program. But I don't know in GTK+, what's the
right method to keep fetching the information from the pipe and showing
them in my GUI widgets. On the other hand, while an external program is
running, I don't want user feel that the my program is frozing and user
should be able to kill the running external program by clicking a 'stop'
button on the GUI.
For this kind of task, what GTK+ technology I should go to grab? Thanks
in advance!
--
I can't go back to yesterday - because I was a different person then
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