Re: wxt term + osx

[Allin C. <cot...@wf...>]

On Tue, 25 Aug 2015, Ethan A Merritt wrote:

> On Tuesday, 25 August, 2015 14:22:05 Allin Cottrell wrote:
>> On Tue, 25 Aug 2015, sfeam wrote:
>
>>> The single- and multi- threaded versions use a different section of
>>> code in the routine wxt_gui.cpp: wxt_waitforinput()
>>> It sounds like there is some tweak needed for the single-threaded
>>> code block so that it doesn't exit if "pause mouse close" is active.
>>>
>>> You could try adding a check for
>>>  if (!paused_for_mouse)
>>> or maybe it would need to be
>>>  if ((paused_for_mouse & PAUSE_WINCLOSE) != 0)
>>>
>>> before breaking from the loop that starts at line 3869.
>>> But I'm not sure... that might cause it to hang in other
>>> circumstances.
>>
>> Thanks for the hint, I'll give it a try.
>>
>> In the meantime, something related: I tried hooking up all relevant
>> pipes via g_spawn (gnuplot's stdin to pipe in the script, and
>> gnuplot's stdout to read messages). My idea was, after "pause mouse
>> close" get gnuplot to print "done" (with print set to "-"). So when we
>> read "done", close all pipes and gnuplot should shut down.
>>
>> This works fine on Linux, but not on OS X: "done" never gets printed,
>> or in other words closing the wxt window does not trigger "close" so
>> far as pause mouse is concerned. The pause is either non-existent or
>> permanent 8-/
>
> Does it make any persist/nopersist make any difference?
> Try activating the FPRINTF in wxt_gui.cpp
>
>    void wxtFrame::OnClose( wxCloseEvent& event )
>    {
>        FPRINTF((stderr,"OnClose\n"));
>
> to monitor whether the window close event is being delivered to
> the program.

It was being delivered, and I was wrong above: the "done" was coming 
through on the stdout pipe, it's just that I wasn't reading from the 
pipe expertly enough. However, if I read correctly and close the pipes 
when "done" comes through I'm back with my original problem, the 
window closing right away. Context:

set print "-"
<various commands>
pause mouse close
print "done"

However... If I ignore the "done" and instead wait for "OnClose" 
coming out the stderr pipe from wxt_gui.cpp, it works right! The 
window remains open until deliberately closed, at which point I close 
the pipes and gnuplot exits.

Allin Cottrell