Leak Script

Andi Gutmans wrote:

Looks like a circular reference to me. It's supposed to leak :)

Andi

Hi Andy,

not sure if I understood this right but thats supposed to be that way?
Anyone CAN create memory-leaks in php if he just wants?

I'm not sure if hosters will like that behaviour with their
apache processes (with mod_php) taking up more and more memory ;-).

thomas

Looks like a circular reference to me. It's supposed to leak :)

Yep - but shouldn't object destruction be forced before the memory
manager cleans it up. The example could rather be put as:

<?php
class InstanceContainer {
public $value;

    function __construct() {
            $this->value = new GenericObject($this);
    }

    function __destruct() {
            print "Called\n";
    }

}

class GenericObject {
public $internal;

    function __construct($instance) {
            $this->internal = $instance;
    }

}

$o = new InstanceContainer();
?>

As you can predict, __destruct() won't be called. Shouldn't objects be
unmercifully cleaned up before we rely on the memory manager to burn the leftovers?

-Sterling

Andi

At 06:42 PM 1/13/2004 -0500, Sterling Hughes wrote:

Hey,

The attached script gives 10 leaks when PHP5 is compiled with
--enable-debug. These problems are also related to Bug #26765, I'll be
taking a look at it, unless someone knows the cause already.

The leaks caused when running it are:

/home/sterling/work/php/php-src/Zend/zend_execute.c(2840) : Freeing
0x40162A30 (16 bytes), script=t.php
/home/sterling/work/php/php-src/Zend/zend_hash.c(236) : Freeing
0x401629CC (44 bytes), script=t.php
Last leak repeated 1 time
/home/sterling/work/php/php-src/Zend/zend_execute.c(3094) : Freeing
0x40162968 (44 bytes), script=t.php
/home/sterling/work/php/php-src/Zend/zend_API.c(720) : Actual location
(location was relayed)
Last leak repeated 1 time
/home/sterling/work/php/php-src/Zend/zend_objects.c(88) : Freeing
0x40162924 (12 bytes), script=t.php
Last leak repeated 1 time
/home/sterling/work/php/php-src/Zend/zend_execute.c(3093) : Freeing
0x401628E0 (16 bytes), script=t.php
/home/sterling/work/php/php-src/Zend/zend_API.c(721) : Freeing
0x4016272C (32 bytes), script=t.php
/home/sterling/work/php/php-src/Zend/zend_hash.c(157) : Actual location
(location was relayed)
Last leak repeated 1 time
=== Total 10 memory leaks detected ===

-Sterling