Thread: [Php-java-bridge-users] Howto terminate java bridge

I use php-gtk with javabridge under Win32... All my code is a standalone 
php script. To start JavaBridge, i use this command :
<?
// Starting JavaBridge
$port = 8080;
system("start JavaBridge\JavaBridge.jar SERVLET_LOCAL:$port");
$java_inc_filename = "http://127.0.0.1:$port/JavaBridge/java/Java.inc";
require_once($java_inc_filename);
?>

This works fine... At the end of my php script I would like to terminate 
the 'javaw' process (win32). I use the following piece of code :

<?
java("java.lang.System")->exit(0);
?>

This terminate the bridge but with a little delay and cause an error. Is 
there a better way to do that ?

Thanks in advance,
Benjamin.

Hi,

you can terminate any Java process with System.exit(code).

> I use php-gtk with javabridge under Win32... All my code is
> This works fine... At the end of my php script I would like
> to terminate the 'javaw' process (win32).

Sorry, but this sounds insane. PHP is not a gerneral purpose programming language, you can't start a GUI loop from it. If you do, you'll quickly run out of memory because PHP's reference counter can't reclaim cycles. Second, the PHP/Java Bridge shouldn't be started/terminated for each request. And third, GTK isn't quite stable on Windows, anyway.

Why don't you use a proper programming language such as Java, Scheme or Python to write your GUI?


Regards,
Jost Boekemeier


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Hello,

I do not understand very well what you mean by "PHP's reference counter 
can't reclaim cycles". Anyway, the bridge is started at the beginnig of 
the application as a subprocess and should be stopped at the end.
In my opinion, php is a powerfull language especially to manipulate 
string. It uses simple methods. Php syntax is very simple too.
For the GUI under Win32, java API isn't as easy to use as Gtk, and I 
didn't know that python and scheme have their own GUI (without using GTK 
libraries).

Thanks for your help...
Benjamin.

php...@li... a écrit :
> Hi,
>
> you can terminate any Java process with System.exit(code).
>
>   
>> I use php-gtk with javabridge under Win32... All my code is
>> This works fine... At the end of my php script I would like
>> to terminate the 'javaw' process (win32).
>>     
>
> Sorry, but this sounds insane. PHP is not a gerneral purpose programming language, you can't start a GUI loop from it. If you do, you'll quickly run out of memory because PHP's reference counter can't reclaim cycles. Second, the PHP/Java Bridge shouldn't be started/terminated for each request. And third, GTK isn't quite stable on Windows, anyway.
>
> Why don't you use a proper programming language such as Java, Scheme or Python to write your GUI?
>
>
> Regards,
> Jost Boekemeier
>
>
> __________________________________________________
> Do You Yahoo!?
> Sie sind Spam leid? Yahoo! Mail verfügt über einen herausragenden Schutz gegen Massenmails. 
> http://mail.yahoo.com 
>
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Hi Benjamin,

> I do not understand very well what you mean by
> "PHP's reference counter 
> can't reclaim cycles".

=> http://en.wikipedia.org/wiki/Reference_counting


> Anyway, the bridge is
> started at the beginnig of 
> the application as a subprocess 

You've got it backwards. 
Please see the JSR 223 API spec and the Swing example. You can start Java with:

 jrunscript -p php-interactive 

and invoke php/gtk from Java.


> In my opinion, php is a powerfull language 

Sorry, but this is nonsense.

PHP is a language suited for the web. A PHP script cannot run for more than 30 seconds. If it does, one may receive out of memory problems because some objects cannot be reclaimed.

Furthermore the PHP/Java Bridge protocol assumes that a PHP script does not allocate more than 2^32 handles. Even the fastest computer cannot exceed this limit within 30 seconds. Bear in mind that the HTTP server and the web browser have similar limits.


> didn't know that python and scheme have their own GUI

They use Java's Swing or other toolkits.


Regards,
Jost Boekemeier




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