Starting a process using @shell_exec hangs my display file

[mikie46]

I have a menu which has a button on it. The button executes a process when clicked then it restarts a process on the server via shell_exec.

The problem is, when i restart the process it hangs my display file and never releases it. The start command completes but the display file just sits there doing nothing.

I have the following code which restarts the process.

$status = @shell_exec ('ps xo "pid args" | grep "myscript.pl" | grep -vc "grep"');
		$status = trim ($status);
		if ($status == '0')
		{
			$startup = @shell_exec ('/etc/rc.d/init.d/myscript start');
		}

After this starts up the process, which it does, why doesnt it release my display?

[bradgrafelman]

Try forking the process into the background - add an ' &' at the end of the 'myscript start' command.

[mikie46]

Thanks for the suggestion. I tried adding & but im getting the same results. Still hangs my display.

[mikie46]

I'v search the net and found some good example but none of them work.

This should work.

$startup = exec("etc/rc.d/init.d/myscript start > /dev/null/ &");

But it doesn't. I think the whole problem is the space between myscript and start. It just doesnt understand that it should be started.

So then how would somebody restart an apache process using shell exec? I mean you would need to execute.

/etc/rc.d/httpd restart start or stop. Its basically the same concept.

[mikie46]

Does anyone have a solution for this? Surely sombody know why a display hangs. Im not sure why but it does even after the start process has completed successful the display sits there doing nothing. Iv tried redirect the display to go to echo "" etc to display stats as its restarting but it doesnt show as its too busy just hanging.

Is there a timeout setting i could set for a display?