Description:
------------
OS：Windows 2008 Server R2
PHP:Version 5.3.9

When I call the () shm_close the () shm_open, handle name
 \BaseNamedObjects\TSRM_SHM_DESCRIPTOR:x and 
 \BaseNamedObjects\TSRM_SHM_SEGMENT:x 
remains without being released. 
The amount of memory used will continue to increase.

This problem does not occur on Linux.

Test script:
---------------
<?php
    $shm_id = 0;
    $hex_shm_id = 0xff3;
    $write_d1 = "test #1 of the shmop() extension";
    $write_d2 = "test #2 append data to shared memory segment";
    for( ; ; )
    {
        echo "shm open for create : ";
        $shm_id = shmop_open($hex_shm_id, "c", 0644, 1024);
        if (!$shm_id) {
            die("failed\n");
        } else {
            echo "ok[".$shm_id."]\n";
        }

        echo "shm size is: " . ($shm_size = shmop_size($shm_id)) . "\n";
        echo "shm write test #1: ";

        $written = shmop_write($shm_id, $write_d1, 0);
        if ($written != strlen($write_d1)) {
            echo "failed\n";
        } else {
            echo "ok\n";
        }
        echo "data in memory is: " . shmop_read($shm_id, 0, $written) . "\n";

        shmop_close($shm_id);
        $shm_id = 0;

        sleep(1);
    }
?>

Expected result:
----------------
Memory leak and handle leak does not occur.