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Re: java package and MacOS
From: |
Ben Abbott |
Subject: |
Re: java package and MacOS |
Date: |
Tue, 27 Nov 2012 22:27:37 -0500 |
On Nov 27, 2012, at 10:18 PM, Ben Abbott wrote:
>
> On Nov 27, 2012, at 10:01 PM, Daniel J Sebald wrote:
>
>> On 11/27/2012 08:45 PM, Ben Abbott wrote:
>>>
>>> On Nov 27, 2012, at 6:14 PM, Daniel J Sebald wrote:
>> [snip]
>>>> Well, if you have Java on your system (which I assume is the case if you
>>>> do any web browsing...type "java" or "javac" at a shell command line to
>>>> confirm) then this should be a configuration issue (emphasis "should").
>>>> Java is supposed to be a very portable environment.
>>>>
>>>> Perhaps your definition of JAVA_HOME is wrong, but in my case I can set
>>>> JAVA_HOME to any valid directory and "dlgtest(0)" functions properly.
>>>>
>>>> Dan
>>>
>>> MacOS X has Java. If I understand the problem correctly ,.. the problem is
>>> that for MacOS X, the GUI loop must be in the main program thread. What
>>> I'm not sure of is if the GUI loop can support both a Qt and Java (I
>>> suspect it can not, but don't know).
>>
>> Oh, you are running Octave as its GUI? I think several of us have been
>> running with the --no-gui option.
>>
>> I just found out a little while ago that running these Java commands while
>> inside the GUI doesn't work. Nothing happens or it crashes.
>>
>> Dan
>
> No. The gui does not work yet on MacOS X.
>
> The problem with Qt is not the same as the problem for Java. For the Qt GUI,
> the main thread includes the GUI loop (at least that is my understanding).
> The problem for the gui on MacOS X has to do with forking. I get the error
> below.
>
> The process has forked and you cannot use this CoreFoundation functionality
> safely. You MUST exec().
> Break on
> __THE_PROCESS_HAS_FORKED_AND_YOU_CANNOT_USE_THIS_COREFOUNDATION_FUNCTIONALITY___YOU_MUST_EXEC__()
> to debug.
>
> The problem with Java is that the GUI loop is not the main thread, but MacOS
> requires that the first thread spawned be the main()/GUI thread (I'm not an
> expert in how Cocoa works, and am only repeating what I've read here and else
> were).
>
> Ben
After some time browsing and googling, I came across the discussion below.
http://www.cocoabuilder.com/archive/cocoa/315103-why-is-the-threading-and-ui-updating-designed-to-be-done-only-on-main-thread.html
[Q] Why is the threading and UI updating designed to be done only on a main
thread?
Ben
- Re: dlgtest() no longer needs Octave package, (continued)
- Re: dlgtest() no longer needs Octave package, Philip Nienhuis, 2012/11/29
- Re: java package and MacOS, Ben Abbott, 2012/11/27
- Re: java package and MacOS, Daniel J Sebald, 2012/11/27
- Re: java package and MacOS, Ben Abbott, 2012/11/27
- Re: java package and MacOS, Michael Goffioul, 2012/11/27
- Re: java package and MacOS, Ben Abbott, 2012/11/27
- Re: java package and MacOS, Michael Goffioul, 2012/11/27
- Re: java package and MacOS,
Ben Abbott <=
- Re: java package and MacOS, Philip Nienhuis, 2012/11/29